A fuel injection system for an engine of a vehicle includes a throttle body and an elastomeric injection manifold coupled to the downstream end of the throttle body. The injection manifold defines a fuel injector socket. The fuel injection system also includes a fuel injector receivable by the fuel injector socket of the injection manifold and a fuel rail fluidly coupled to the fuel injector. The fuel rail supplies fuel to the fuel injector.
A two-stroke engine comprises a first oiling system and a second oiling system. The first oiling system includes a low-pressure pump that distributes oil from a first oil tank to the two-stroke engine. The second oiling system includes a pump mechanically coupled to a crankshaft of the two-stroke engine, wherein the pump distributes oil from a second oil tank to an accessory at a pressure greater than the first oil pressure, wherein oil distributed to the accessory is returned to the second oil tank.
Embodiments include a snow vehicle seat assembly, including a fuel tank that is positionable on a tunnel of a snow vehicle, the fuel tank including: an upper surface defining a plurality of seat mounting features, and a rearward portion defining a rearward facing chamber, a seat frame that is removably secured to the plurality of seat mounting features, the seat frame including a first portion positioned on the fuel tank and a second portion extending rearward therefrom, and a rear panel that slidingly and removably engages the rearward portion of the fuel tank to support the second portion of the seat frame.
A powertrain for a snowmobile includes an engine, a gearbox input shaft and a drop case assembly receiving rotational energy from the gearbox input shaft. The drop case assembly is switchable between a forward mode and a reverse mode and includes an input gear assembly coupled to the gearbox input shaft. The input gear assembly includes a forward input pulley rotatably coupled to the gearbox input shaft, a reverse input gear rotatably coupled to the gearbox input shaft and an input selector collar between the forward input pulley and the reverse input gear. The input selector collar is slidable between a forward mode position engaged with the forward input pulley to transfer rotational energy from the gearbox input shaft to the forward input pulley and a reverse mode position engaged with the reverse input gear to transfer rotational energy from the gearbox input shaft to the reverse input gear.
An exhaust system for a snowmobile includes a turbocharger, a muffler rigidly coupled to the turbocharger and a plurality of mounting assemblies coupling the turbocharger and the muffler to the forward frame assembly. The plurality of mounting assemblies includes a first mounting assembly and a second mounting assembly. The first mounting assembly includes a first turbocharger bracket rigidly coupled to the turbocharger, a first frame bracket rigidly coupled to the forward frame assembly and a first vibration isolator interposed between the first turbocharger bracket and the first frame bracket. The second mounting assembly includes a second muffler bracket rigidly coupled to the muffler, a second frame bracket rigidly coupled to the forward frame assembly and a second vibration isolator interposed between the second muffler bracket and the second frame bracket. The first and second mounting assemblies inhibiting vibration transfer from the forward frame assembly to the turbocharger and the muffler.
A cooling system for a snowmobile having an engine and a turbocharger. The cooling system includes a pump in upstream fluid communication with the engine and the turbocharger. A coolant distribution assembly is coupled to and positioned outboard of the engine. The coolant distribution assembly includes first and second thermostat chambers and a vapor tank. The first thermostat chamber is in downstream fluid communication with the engine and the vapor tank. The first thermostat chamber is selectively in upstream fluid communication with the second thermostat chamber and the pump. The vapor tank is in downstream fluid communication with the turbocharger. A heat exchanger assembly is in downstream fluid communication with the second thermostat chamber and in upstream fluid communication with the pump. The pump, the coolant distribution assembly and the heat exchanger assembly form a cooling circuit for circulating a coolant through the engine and the turbocharger.
An air cooling system for a snowmobile having a forward frame assembly defining an engine bay, an engine positioned in the engine bay and a turbocharger positioned outboard of the engine bay. The air cooling system includes an intercooler in downstream fluid communication with the turbocharger. The intercooler is configured to cool compressed air from the turbocharger. An air channel is positioned forward of the intercooler. The air channel has a lower wall and a pair of oppositely disposed side walls that direct ambient ram air into the intercooler such that heat transfers from the compressed air to the ambient ram air in the intercooler, thereby cooling the compressed air and increasing the density of the compressed air before the compressed air enters the engine.
An air intake system for a snowmobile having a forward frame assembly. The air intake system includes an airbox having an inlet configured to receive ambient air and an outlet. The airbox is coupled to a forward side of the forward frame assembly. An air filter assembly is in downstream fluid communication with the airbox. The air filter assembly has an inlet that is coupled to the outlet of the airbox. The inlet of the air filter assembly is at least partially aligned with the inlet of the airbox.
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
A clutch assembly includes a first clutch defining a central axis and configured to be coupled to a prime mover of a snowmobile, a second clutch coupled to the first clutch and configured to be coupled to a tractive assembly of the snowmobile, and a clutch guard positioned between the first clutch and the second clutch. The clutch guard includes a guard wall having a curved profile extending at least partially around the first clutch, a first mounting flange positioned at or proximate a first end of the guard wall where the first mounting flange is configured to couple to a first mounting interface, and a second mounting flange positioned at or proximate a second end of the guard wall where the second mounting flange is configured to couple to a second mounting interface. The first mounting flange and the second mounting flange are positioned longitudinally forward of the central axis.
F16D 21/08 - Serially-arranged clutches interconnecting two shafts only when all the clutches are engaged
B62M 27/02 - Propulsion devices for sledges or the like power driven
F16H 7/02 - Gearings for conveying rotary motion by endless flexible members with beltsGearings for conveying rotary motion by endless flexible members with V-belts
A steering system for a vehicle includes a steering column and a handlebar riser. The handlebar riser is coupled to the top end of the steering column and defines an internal channel. The steering system includes a grab handle having a base that is insertable into the internal channel of the handlebar riser. The steering system also includes handlebars coupled to the top end of the handlebar riser over the base of the grab handle, thereby securing the grab handle to the handlebar riser.
A running board assembly includes a mounting bracket, a support, and a running board. The mounting bracket is configured to detachably couple to a first portion of the snowmobile. The support has a first end, a second end, and a running board interface positioned between the first end and the second end. The first end is detachably coupled to the mounting bracket. The second end is configured to detachably couple to a second portion of the snowmobile. The running board is detachably coupled to and supported by the mounting bracket and the running board interface of the support. The running board has a support surface defining a plurality of apertures forming a honey-comb shaped profile.
A snowmobile includes a frame and a tractive assembly pivotably coupled to the frame. The tractive assembly includes a first rail, a second rail, a first crossmember extending between the first rail and the second rail, an arm having a first end pivotably coupled to the frame and an opposing second end, and a stop assembly. The stop assembly includes a second crossmember coupled to the arm, a cam coupled to the second crossmember, a first bracket coupled to first ends of the first crossmember and the second crossmember, a second bracket coupled to opposing second ends of the first crossmember and the second crossmember, and one or more stops coupled to at least one of the first bracket or the second bracket, the one or more stops configured to engage a portion of the cam to selectively prevent rotation of the arm.
A continuously variable transmission (CVT) drive clutch includes a stationary sheave and a stationary shaft coupled to the stationary sheave. A movable sheave is movable relative to the stationary sheave. The movable sheave includes a tower having a cavity therein. A cover is securable to the movable sheave via a fastener extending into the cavity of the tower. An elongate member is received within the cavity of the tower.
F16H 9/14 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using only one pulley built-up out of adjustable conical parts
Embodiments include an off-road vehicle with a straddle seat, a plurality of ground engaging members, a prime mover and a frame having a removable frame portion overlying the prime mover, wherein at least a portion of the engine extends above at least a portion of the removable frame portion, and wherein at least a portion of the straddle seat extends over the removable frame portion and the prime mover.
An all-terrain vehicle includes a chassis, an engine, and a ground engagement member. The vehicle features a drivetrain that operatively connects the engine to the ground engagement member to deliver propulsive power. The drivetrain comprises a first shaft with a first bearing housed in a fixed bearing retainer and a second shaft with a second bearing housed in a rotatable eccentric bearing retainer. The center of the second bearing is offset from the center of the eccentric bearing retainer, allowing for the adjustment of the distance between the first and second shafts by rotating the eccentric bearing retainer. This configuration enables precise control over the drivetrain alignment, enhancing the vehicle's adaptability to various terrain.
A utility vehicle including a frame, a body supported by the frame, a seating area supported by the frame, front and rear ground engaging members supporting the frame and the body, and a powertrain drivingly coupled to the front and rear ground engaging members. The powertrain includes a transmission and an engine having a plurality of cylinders. The engine includes an intake manifold, a throttle valve, and an exhaust. The intake manifold and throttle valve are positioned longitudinally forward of the plurality of cylinders and the exhaust is positioned longitudinally rearward of a forwardmost portion of the plurality of cylinders.
B60G 3/14 - Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
B60G 3/18 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
B60G 3/20 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
B60G 7/02 - Attaching arms to sprung part of vehicle
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 5/10 - Arrangement or mounting of internal-combustion or jet-propulsion units providing for ready detachment of engine
B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
B60K 17/24 - Arrangement of mountings for shafting
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 21/11 - Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
17.
Air Intake Vibration Isolation Systems for Vehicles
An air intake system for a vehicle having an engine that produces engine vibrations. The air intake system includes an air plenum having an air discharge port. An air runner assembly is coupled to the engine and has an air inlet port. An annular cuff has an upstream end coupled to the air discharge port and a downstream end coupled to the air inlet port. The annular cuff provides fluid communication between the air discharge port and the air inlet port. The annular cuff is configured to inhibit engine vibrations from transferring to the air plenum from the air runner assembly.
B62J 35/00 - Fuel tanks specially adapted for motorcycles or engine-assisted cyclesArrangements thereof
B62J 37/00 - Arrangements of fuel supply lines, taps, or the like, on motorcycles or engine-assisted cycles
B62M 27/02 - Propulsion devices for sledges or the like power driven
F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
An off-road vehicle includes a frame, a front suspension, and a rear suspension. In some examples of the off-road vehicle, the rear suspension includes trailing arms with are pivotally attached to the frame rearward of an operator area. Further, the frame can include a front subframe assembly and a rear subframe assembly which are easily removable from the main frame of the vehicle to permit access to various components of the off-road vehicle.
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60G 3/14 - Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
B60G 3/18 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
B60G 3/20 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 5/10 - Arrangement or mounting of internal-combustion or jet-propulsion units providing for ready detachment of engine
A steering and suspension system for an off-road vehicle includes a steering rack assembly and a tie rod, the inboard end of the tie rod coupled to the steering rack assembly. The steering and suspension system includes a knuckle having a top side defining an upper control arm connector arm and an aft side defining a tie rod connector arm, the tie rod connector arm having a distal end coupled to the outboard end of the tie rod. The steering and suspension system also includes an upper control arm having an outboard end coupled to the upper control arm connector arm. The distal end of the tie rod connector arm is positioned such that the tie rod has substantially the same elevation as the upper control arm.
An off-road vehicle has a frame assembly including a forward frame assembly. The forward frame assembly includes left and right bottom level longitudinal frame members having forward ends and left and right upright leading frame members having bottom ends coupled to the forward ends of the left and right bottom level longitudinal frame members, respectively. The off-road vehicle includes a gear case coupled to the left and right bottom level longitudinal frame members. The off-road vehicle also includes a winch coupled to the left and right bottom level longitudinal frame members and positioned aft of the left and right upright leading frame members such that the winch is horizontally interposed between the gear case and the left and right upright leading frame members.
B60G 3/20 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
B60R 11/00 - Arrangements for holding or mounting articles, not otherwise provided for
B62D 21/02 - Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
B66D 1/36 - Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
A door handle on a vehicle door includes a first grip and a second grip configured to engage fingers of a user and a web extending between the first grip and the second grip. One grip is accessible from the interior of the vehicle and the second is accessible from the exterior of the vehicle. A structure on the door handle is coupled to a latch, such as by one or more links, for releasing the latch from a striker responsive to rotation of the door handle. The one or more links may include a link having one slot receiving the structure and another slot coupled to the latch. The door handle may be positioned between mounting flanges and secured by a pin passing through the patch and an opening defined by the door handle.
Embodiments of the present disclosure describe a drive pulley for a continuously variable transmission including a stationary sheave with a stationary shaft, a movable sheave axially movable relative to the stationary sheave and in contact with the stationary shaft; a spider in contact with at least the moveable sheave and stationary shaft; a spring member, biasing the movable sheave axially away from the stationary sheave; at least one centrifugal actuator including an arm pivotally connected to one of the movable sheave and the spider, the arm pivoting away from the one of the movable sheave and the spider as a speed of rotation of the drive pulley increases, the arm pushing against another one of the movable sheave and the spider as the arm pivots away from the one of the movable sheave and the spider, thereby moving the movable sheave axially toward the stationary sheave, the at least one centrifugal actuator being disposed radially outward of the stationary sheave shaft; and a torque transfer assembly operatively connected to at least one of the spider and the movable sheave, the torque transfer assembly transferring torque between the spider and the movable sheave, the torque transfer assembly including, a torque bearing assembly and at least one roller assembly, positioned on a helixed torque pin, the torque pin connected to the spider; wherein as the roller assembly wears, the at least one roller assembly tracks along a helixed path of the torque pin in a distal direction from the bearing assembly.
F16H 55/56 - Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
B62M 27/02 - Propulsion devices for sledges or the like power driven
F16H 63/06 - Final output mechanisms thereforActuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
Embodiments of the present disclosure describe a snowmobile including a chassis, a tunnel, an engine, a drive track and a drivetrain. The tunnel is attached to the chassis and includes running boards located on either side of the tunnel. The engine is attached to the chassis and within an engine bay. The drivetrain is operatively connected to the engine to deliver propulsive power to the drive track, wherein the running boards extend forward alongside at least a portion of the engine bay.
A steering system for a vehicle includes a steering column and a handlebar riser. The handlebar riser is coupled to the top end of the steering column and defines an internal channel. The steering system also includes a grab handle including a closed loop and a base coupled to the bottom end of the closed loop. The base is insertable into the internal channel of the handlebar riser. The steering system also includes handlebars coupled to the top end of the handlebar riser over the base of the grab handle, thereby securing the grab handle to the handlebar riser.
A recreational off-highway vehicle includes side-by-side passenger and driver seats held within a chassis. The seats sit low in the chassis and are covered by a roll cage. Grab handles are positioned on the sides of the passenger seat. Select large round tubing protects the vehicle, while rectangular tubing frames the portions of the vehicle beneath body panels. The vehicle is powered by an engine rearward of the seats that is connected to a transaxle. A radiator is positioned above the engine. A cover with an access panel is situated between the engine and the passenger seats. The vehicle is suited for rough terrain travel.
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60N 2/01 - Arrangement of seats relative to one another
B60N 2/24 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles for particular purposes or particular vehicles
B60R 21/00 - Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
B62D 25/00 - Superstructure sub-unitsParts or details thereof not otherwise provided for
B62D 65/10 - Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being engines, clutches or transmissions
A fuel injection system for an engine of a vehicle includes a throttle body and an elastomeric injection manifold coupled to the downstream end of the throttle body. The injection manifold defines a fuel injector socket. The fuel injection system also includes a fuel injector receivable by the fuel injector socket of the injection manifold and a fuel rail fluidly coupled to the fuel injector. The fuel rail supplies fuel to the fuel injector.
A method of assembling two snowmobiles with a common frame includes providing a common forward frame. A first common component is provided and positioned at a first orientation or at a second orientation with respect to the common forward frame. The first common component is secured at the first orientation or at the second orientation. The method includes selecting between a first set of first model components and a second set of second model components and securing the first set of first model components or the second set of second model components.
B62M 27/02 - Propulsion devices for sledges or the like power driven
B62D 65/10 - Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being engines, clutches or transmissions
A torque control link for maintaining a stable center to center distance between a primary clutch and a secondary clutch of a continuously variable transmission of a snowmobile. The torque control link includes a root section, a tip section and a main body that extends between the root section and the tip section. The root section has a plurality of engine mounting features that couple to the engine and a crankshaft aperture that receives the crankshaft therethrough with a clearance therebetween. The tip section has at least one chassis mounting feature that couples to the chassis and a jackshaft aperture that rotatably supports a jackshaft therein via a bearing. The main body has a waveform cross section with a substantially uniform thickness that not only improves the manufacturability of torque control link but also improves the strength of torque control link.
A snowmobile has a ski system and a drive track system including an endless track configured to provide ground propulsion for the snowmobile. An internal combustion engine is configured to provide torque and rotational energy to the drive track system. A stator system is operably associated with the engine. The stator system is configured to output first and second direct currents. At least one electrical load component is positioned in a first circuit associated with the first direct current. A steering system is operatively coupled to the ski system. The steering system includes an electronic steering assist unit that is positioned in a second circuit associated with the second direct current.
A skid frame for a snowmobile is disclosed including a generally planar skid surface extending between front and rear idler wheels. The front and rear idler wheel are offset from one another and define a longitudinal direction. A track encircles the skid frame having the skid surface positioned over a center of the track such that a major longitudinally extending portion of the track that is coextensive with the skid surface has first and second unsupported lateral portions on either side of the skid surface. The first and second unsupported lateral portions extend in the horizontal direction at least 25 percent of a width of the track. A suspension arm member may mount the skid rail and include mount portions for mounting to a tunnel and spanning a distance at least twice the width of the longitudinal beam.
A locking hinge assembly for a vehicle includes a hinge base coupled to a base component of the vehicle. The hinge base defines a vertical channel and a horizontal channel. The vertical channel is perpendicular to the horizontal channel. The locking hinge assembly also includes a hinge tongue coupled to a pivotable component of the vehicle. The hinge tongue is moveable between various positions including a closed position and an open position. The hinge tongue is received by the vertical channel of the hinge base in the closed position. The hinge tongue is received by the horizontal channel of the hinge base in the open position.
An electrically variable transmission for an off-road vehicle including an internal combustion engine with a crankshaft. The electrically variable transmission includes a compound planetary gear assembly having a first planetary gear set with a first ring gear, a first sun gear and a first planet carrier and a second planetary gear set with a second ring gear, a second sun gear and a second planet carrier. The planet carriers are coupled together for common rotation and are coupled to an output gear for common rotation therewith. The first ring gear is in torque transferring communication with the crankshaft. The first sun gear is in torque transferring communication with a first motor generator. The second sun gear is in torque transferring communication with a second motor generator. The rotational axes of the compound planetary gear assembly and each of the motor generators are parallel rotational axes.
B60K 6/543 - Transmission for changing ratio the transmission being a continuously variable transmission
B60K 6/365 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
B60K 6/40 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
B62M 27/02 - Propulsion devices for sledges or the like power driven
F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
F16H 61/66 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings
Embodiments of the present disclosure describe a snow vehicle including an engine mounted on a frame, a drive track in contact with the frame, a drive train operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track, a fork connected to the frame, one or more skis connected to the fork, a drop fork component positioned between a fork and handlebars, and an exhaust system. The drive train includes a continuously variable transmission (CVT) positioned within a CVT housing.
A snowmobile includes an engine mounted on the chassis, a drive track in contact with the chassis, and a drive train, operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track. The drive train includes a driveshaft, comprising a tubular driveshaft including two or more interior channels, the channels positioned in a substantially longitudinal orientation, two or more sprocket driving features on an exterior surface of the tubular driveshaft, and one or more fitting components, positioned at one or more distal ends of the driveshaft.
A snowmobile includes a forward frame assembly defining an engine bay. An engine is positioned within the engine bay. The engine has a plurality of intake ports positioned on an aft side of the engine and a plurality of exhaust ports positioned on a forward side of the engine. An air intake system has at least one air inlet and a plurality of air outlets. The air intake system is coupled to the aft side of the engine such that each of the air outlets is configured to provide air to one of the intake ports. An exhaust system has a plurality of exhaust inlets and at least one exhaust outlet. The exhaust system is coupled to the forward side of the engine such that each of the exhaust inlets is configured to receive exhaust from one of the exhaust ports.
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
Embodiments of the present disclosure describe a recreational vehicle spindle for use with a snowmobile, a snow bike, all-terrain vehicle (ATV), or a side by side vehicle (SxS or UTV). The spindle includes a body with one or more mounts for securing a suspension component and a ground engaging member thereto. The body of the spindle may include one or more of a window, a recess, a leading edge, a triangular cross-sectional shape, an integrated steering stop, and an outboard side that includes a flat surface.
A snowmobile includes a forward frame assembly defining an engine bay. The forward frame assembly includes a nose frame assembly having a nose frame cross member positioned forward of the engine bay. An engine is positioned within the engine bay. A tunnel is coupled to the forward frame assembly and is positioned aft of the engine bay. A heat exchanger is coupled to a forward end of the tunnel. At least one aftward engine mount is configured to couple the engine to the heat exchanger. At least one forward engine mount is configured to couple the engine to the nose frame cross member. The at least one aftward engine mount has a mount axis that is oriented in a substantially radial direction relative to an axis of rotation of a track driveshaft.
Embodiments of the present disclosure describe a spindle for a recreational vehicle, such as a snowmobile, an all-terrain vehicle (ATV), or a side-by-side vehicle. The spindle includes a spine, optionally a front fin that extends from a front surface of the spine, and optionally a rear fin that extends from a back surface of the spine.
B62B 13/10 - Sledges with runners characterised by arrangement of runners arranged in two or more parallel lines with steering devices with swivelling portions of the runnersSledges with runners characterised by arrangement of runners arranged in two or more parallel lines with steering devices with a swivelling middle runner
Embodiments describe a method of controlling a two-stroke internal combustion engine. A method of controlling a two-stroke internal combustion engine includes determining a base nominal exhaust gas temperature, determining a base barometric pressure correction to base nominal exhaust gas temperature, determining exhaust gas temperature differential, determining exhaust gas temperature injection correction, and utilizing the exhaust gas temperature injection correction to make a final short-term fuel or ignition correction.
F02P 5/04 - Advancing or retarding electric ignition sparkControl therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
F02B 75/02 - Engines characterised by their cycles, e.g. six-stroke
F02D 41/38 - Controlling fuel injection of the high pressure type
An exhaust valve includes a toroidal surface about an axis of rotation of the valve. The toroidal surface is positionable over a central exhaust port of an engine when lowered. The valve is raised by an actuator in response to increasing rotational speed of the crankshaft of the engine, thereby enlarging and raising the effective opening of the exhaust port. Lateral valve surfaces on either side of the toroidal surface close lateral exhaust ports when the valve is lowered. The lateral valve surfaces may be cylindrical and formed on fins. The position of the exhaust valve is adjusted continuously along its range of motion and the position of the exhaust valve may be calculated based on some or all of engine speed, engine loading, and exhaust temperature at a frequency up to once per revolution of the engine.
Embodiments include an off-road vehicle with a straddle seat, a plurality of ground engaging members, a prime mover and a frame having a removable frame portion overlying the prime mover, wherein at least a portion of the engine extends above at least a portion of the removable frame portion, and wherein at least a portion of the straddle seat extends over the removable frame portion and the prime mover.
B62K 5/007 - Cycles with four or more wheels, specially adapted for disabled riders, e.g. personal mobility type vehicles with four wheels power-driven
A fuel system for a snowmobile having a chassis defining an engine bay and an engine positioned within the engine bay. The fuel system includes a fuel tank that is coupled to the chassis and is positioned aft of the engine. The fuel tank has a forward face that includes a lower contour and an upper contour. A fuel rail is in fluid communication with the fuel tank and the engine. The fuel rail is positioned between the engine and the lower contour of the forward face of the fuel tank.
B62J 35/00 - Fuel tanks specially adapted for motorcycles or engine-assisted cyclesArrangements thereof
B62J 37/00 - Arrangements of fuel supply lines, taps, or the like, on motorcycles or engine-assisted cycles
B62M 27/02 - Propulsion devices for sledges or the like power driven
F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
45.
Air intake vibration isolation systems for vehicle engines
An engine includes an engine body assembly and an air intake system including an air plenum. The air plenum is positioned above the engine body assembly. The engine includes an air plenum support bracket having an upper arm coupled to the air plenum and a lower arm coupled to the engine body assembly. The engine also includes a vibration isolator coupled to the air plenum support bracket and interposed between the air plenum and the engine body assembly, thereby inhibiting engine vibrations from transferring to the air plenum.
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
A steering system for a snowmobile includes a handlebar assembly and a steering column that has upper and lower ends. The upper end of the steering column is coupled to the handlebar assembly. The lower end of the steering column is coupled to an input shaft of an electronic steering assist unit. An output shaft of the electronic steering assist unit is coupled directly to a steering arm assembly. First and second tie rods respectively couple the steering arm assembly to first and second ski assemblies such that turning the handlebar assembly, together with the assistance of the electronic steering assist unit, causes the ski assemblies to pivot. The steering column and the electronic steering assist unit share a common axis of rotation that is positioned along a centerline of the snowmobile.
An engine cooling system for a snowmobile that includes a forward frame assembly, an engine, a tunnel and a track driveshaft having an axis of rotation. The cooling system includes a heat exchanger that is coupled to the forward frame assembly and to the tunnel. The heat exchanger is positioned aft of the engine and is configured to transfer heat from a coolant fluid circulated through the engine and the heat exchanger. The heat exchanger includes a body having an arcuate section with a substantially constant radius of curvature and with a center of curvature proximate the axis of rotation of the track driveshaft.
A bearing hub is positioned within a drivetrain assembly of a snowmobile. The bearing hub includes a body and a bearing sleeve that is coupled to the body. The body has an upper connection rigidly coupled to the chassis of the snowmobile, an aft connection rigidly coupled to the chassis of the snowmobile, a lower connection rigidly coupled to a heat exchanger and an engine mount connection resiliently coupled to an engine mount to reduce vibration transfer from the engine to the bearing hub. The bearing sleeve has a bearing aperture that is configured to receive a bearing assembly therein. The the upper connection, the aft connection and the lower connection form a triangular support arrangement for the driven shaft. The driven shaft is rotatably coupled to the bearing sleeve by the bearing assembly.
Embodiments relate to an off-road vehicle comprising a frame, including at a frame, a passenger compartment, a driveline that includes at least a drive system and a driven system, and a constant velocity (CV) joint for coupling the driven system to the drive system. The CV joint includes a housing, a coupling shaft, a detent, a plunge pin and an actuation pin, wherein the actuation pin has a first end that is accessible via an aperture in the housing, wherein actuation of the actuation pin determines whether the plunge pin is in the first position or the second position.
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
A seat suspension system for a seat of a lightweight vehicle, wherein the system comprises a seat frame to which a seat can be connected, one or more of seat frame mounting bracket mounted to a chassis of the vehicle; one or more mounting feet extending from a front portion of the seat frame and pivotally connectable to the one or more seat frame mounting bracket; a damping assembly mounting bracket mounted to a rear cross member of the seat frame; and a damping device assembly mounted between the chassis of the vehicle and the damping assembly mounting bracket, the damping device assembly structured and operable to dampen the transfer of movement from the chassis of the vehicle to the seat frame.
The present disclosure relates to a coolant system to cool an engine assembly. The coolant system includes a coolant pump impeller with multiple concentric ribs extending axially on a first side of the coolant pump impeller and multiple vanes extending axially on a second side of the coolant pump impeller. The coolant system also includes a coolant rail to collect coolant from a water jacket that surrounds portions of cylinders and a cylinder head of the engine assembly. The coolant system further includes bleed fittings to remove trapped air as the coolant system circulates coolant through the engine assembly. First and second bleed fittings are provided on opposite corners of the engine assembly such that either the first or the second bleed fitting is at a highest point of the coolant system based on an engine orientation of the engine assembly.
The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine including an extended crankshaft with additional main bearings, an alternator or a generator, a drive chain assembly, and a starter motor assembly. The engine may be used in different models of the vehicle having different characteristics, which enables to interchange or replace an internal generator with an external alternator, and vice versa in addition enable to use a common starter motor assembly, crankshaft, crankcase, and drive chain assembly for both engine configuration without modifying a basic design of the engine. Further, placement of the starter motor assembly provides a compact arrangement. In addition, the extended crankshaft with the additional main bearings enables low noise level operation, avoids additional shafts and roller bearings to be attached, and cost effective. Similarly, the drive chain assembly produces less vibration and noise.
F02B 67/06 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
B62M 27/02 - Propulsion devices for sledges or the like power driven
F02B 33/40 - Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
F02N 11/08 - Circuits specially adapted for starting of engines
The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine that includes a cylinder head housing a valve train assembly and a valve cover covering a top of the cylinder head. The engine may be used in different models of the vehicle having different characteristics by configuring the valve train assembly to position camshafts such that either the intake or exhaust ports may be positioned to front or rear side of the cylinder head, while keeping one or more other engine components, such as camshaft positioning, camshaft drive and/or the valve cover the same. In the valve train assembly, finger followers are arranged on the same side of each camshaft and the hydraulic compensators are arranged opposite side of the finger followers. The engine of the present disclosure may also enable alignment and ease of installation and removal of the valve cover.
A snowmobile includes a frame, at least one ski, handbars operatively coupled to the at least one ski, and an engine assembly comprising an engine and an exhaust manifold. The exhaust manifold includes at least a first inlet, a first outlet, and a second outlet. The first inlet is configured to connect to a first exhaust port. The first outlet is connected to provide exhaust received from the first inlet to a first exhaust path and the second outlet is connected to provide exhaust received from the first inlet to a second exhaust path.
The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine including a cylinder head and an engine block. The engine block comprises a cylinder block and a crankcase having a crankshaft. The engine may be used in different models of the vehicle having different characteristics by interchanging or replacing the cylinder head from a plurality of cylinder heads and/or a cylinder block from a plurality of cylinder blocks, while keeping one or more engine components such as the crankcase, a timing chain, or a valve cover the same. Accordingly, the engine is adaptable to different vehicles.
The present disclosure relates to an engine assembly for a vehicle. The engine assembly includes an oil reservoir to receive oil from a crankcase. The oil reservoir is external to the crankcase and positioned rearward of the crankcase. The engine assembly also includes at least one scavenge pump configured to pump the oil from an oil collection pan. The scavenge pump is positioned within the crankcase forward of the crankshaft and includes a suction tube extending rearwardly to a low point in the oil collection pan. The engine assembly further includes a drive mechanism to drive a feed pump and the at least one scavenge pump with the crankshaft. The drive mechanism includes an oil pump shaft to drive the feed pump and includes a gear train coupled to the oil pump shaft to drive the at least one scavenge pump.
A drive track system for a snowmobile includes a slide rail having a forward section and an aft section. The aft section of the slide rail has a monolithic construction and defines an aftmost wheel station, a second-to-aftmost wheel station forward of the aftmost wheel station and a clearance notch that is at least partially disposed between the aftmost wheel station and the second-to-aftmost wheel station in a longitudinal direction of the slide rail. An aftmost wheel is rotatably coupled to the slide rail at the aftmost wheel station. A second-to-aftmost wheel is rotatably coupled to the slide rail at the second-to-aftmost wheel station. A drive track has a path of travel between the aftmost wheel and the second-to-aftmost wheel such that the drive track and the slide rail form a gap therebetween at the path of travel.
A vehicle including an airflow system defining an air passageway to facilitate airflow to or from an engine component. The airflow system includes a noise control mechanism, such as an attenuator or a tortuous portion of the air passageway, for reducing or otherwise controlling noise associated with the engine component. Positioning and orientation of various inlets provides additional noise reduction for passengers of the vehicle.
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
F02M 35/04 - Air cleaners specially arranged with respect to engineMounting thereon
An off-road vehicle includes a frame assembly, a powertrain coupled to the frame assembly and a plurality of wheels at least one of which is operatively coupled to the powertrain. A seating assembly is coupled to the frame assembly and a cargo box is coupled to the frame assembly aft of the seating assembly. A radiator is hingedly coupled to the frame assembly aft of the seating assembly and is configured to pivot aftwardly from an operating configuration to an access configuration. In the operating configuration, the radiator has a forward tilted orientation in which a top of the radiator is positioned forward of a bottom of the radiator. In the access configuration, the radiator has a substantially vertical orientation or an aftward tilted orientation in which the top of the radiator is positioned aftward of the bottom of the radiator.
The present disclosure relates to an off-road vehicle having different features such as a frame having a frame structure, an engine assembly, an exhaust assembly, an engine mount assembly, a suspension assembly, a plurality of wheels, a hitch assembly, and other associated components. Embodiments of the present disclosure also describe a removable frame member facilitating the installation of the engine assembly from a seating area into a rearward portion of the vehicle. The off-road vehicle may further include an engine air intake assembly, an engine cooling assembly, a continuously variable transmission (CVT) cooling assembly, a vehicle cabin cooling assembly, a CVT housing assembly, a door assembly, a dashboard assembly, and other components.
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60D 1/48 - Traction couplingsHitchesDraw-gearTowing devices characterised by the mounting
B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
B60K 11/06 - Arrangement in connection with cooling of propulsion units with air cooling
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
B60K 35/21 - Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
B60N 2/20 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F02M 35/04 - Air cleaners specially arranged with respect to engineMounting thereon
F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
A recreational off-highway vehicle includes side-by-side passenger and driver seats held within a chassis. The seats sit low in the chassis and are covered by a roll cage. Grab handles are positioned on the sides of the passenger seat. Select large round tubing protects the vehicle, while rectangular tubing frames the portions of the vehicle beneath body panels. The vehicle is powered by an engine rearward of the seats that is connected to a transaxle. A radiator is positioned above the engine. A cover with an access panel is situated between the engine and the passenger seats. The vehicle is suited for rough terrain travel.
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60N 2/01 - Arrangement of seats relative to one another
B60N 2/24 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles for particular purposes or particular vehicles
B62D 65/10 - Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being engines, clutches or transmissions
B60K 11/06 - Arrangement in connection with cooling of propulsion units with air cooling
B60R 21/00 - Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
62.
Pressurized oil system powered by two-stroke engine
A two-stroke engine comprises a first oiling system and a second oiling system. The first oiling system includes a low-pressure pump that distributes oil from a first oil tank to the two-stroke engine. The second oiling system includes a pump mechanically coupled to a crankshaft of the two-stroke engine, wherein the pump distributes oil from a second oil tank to an accessory at a pressure greater than the first oil pressure, wherein oil distributed to the accessory is returned to the second oil tank.
An off-road vehicle includes a frame assembly, a powertrain, a plurality of wheels and a seat assembly. A cargo box is coupled to the frame assembly aft of the seat assembly. The cargo box includes a floor and a plurality of side walls. A cargo bed is pivotally coupled relative to the cargo box about a forward hinge. The cargo bed includes a floor and a plurality of side walls forming an upper storage space. The cargo bed is tiltable between a closed position, in which the cargo bed is a cover for the cargo box forming a lower storage space within the cargo box below the cargo bed, and an open position, in which the cargo bed provides access to the lower storage space. An optional accessory rack is pivotally coupled relative to the cargo bed and the frame assembly, and is tiltable with the cargo bed.
A snowmobile includes a frame, at least one ski, a seat, a handlebar connected to the at least one ski via a steering shaft, and a single-piece hood. The single-piece hood includes a forward position located approximately equal to a first horizontal plane, a lower portion that extends rearwardly from the forward position and a top portion that extends rearwardly from the forward position, wherein the bottom portion is located beneath the first horizontal plane and the top portion is located above the first horizontal plane.
An off-road vehicle includes a frame assembly, a powertrain, a seat assembly, a plurality of wheels and a rear suspension including first and second shock absorbers that respectively couple first and second rear wheels to the frame assembly. A first remote auxiliary reservoir is in fluid communication with the first shock absorber and has a manual control configured to adjust a damping function of the first shock absorber. A second remote auxiliary reservoir is in fluid communication with the second shock absorber and has a manual control configured to adjust a damping function of the second shock absorber. The manual controls of the remote auxiliary reservoirs are accessible by an occupant of the vehicle, thereby enabling active adjustments to the damping function of the rear suspension.
The present disclosure relates to a duct valve for a clutch assembly of an off-road vehicle. The duct valve is configured to be coupled to a housing of the clutch assembly. The duct valve comprises a first duct attached to the housing and a first valve cage attached to the first duct. The first valve cage is configured to hold a first floatable element therewithin. The first floatable element is configured to have a first buoyancy and is configured to displace towards a first air opening of the first duct corresponding to a level of a liquid to seal the first air opening.
A powertrain for a snowmobile includes an engine, a gearbox input shaft receiving rotational energy from the engine and a reversible belt drive assembly coupled to the gearbox input shaft. The reversible belt drive assembly is switchable between a forward mode and a reverse mode and includes a pulley, a planetary gear system coaxial with the pulley and a selector collar assembly interposed between the pulley and the planetary gear system translatable between a first position to form a forward geartrain bypassing the planetary gear system in the forward mode and a second position to form a reverse geartrain including the planetary gear system in the reverse mode.
B62M 27/02 - Propulsion devices for sledges or the like power driven
B62M 9/04 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
B62M 11/14 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
A system for and method of separating oil from crankcase air is provided. The system includes replacing a standard shaft, such as a water pump shaft, with a breather shaft of the present invention and venting crankcase air through the breather shaft to an outside volume of air, such as in an air box. The breather shaft includes a centrifuge positioned within an interior volume of the crankcase and a first portion extending from the centrifuge through a wall of the crankcase. The centrifuge defines a plurality of inlet passageways extending from an outer surface of the centrifuge towards an interior area of the centrifuge. The first portion of the breather shaft defines a venting passageway extending from the interior area of the centrifuge to a vent opening at a distal end of the breather shaft.
A snowmobile bumper system includes a lift bumper and a tow bumper. The lift bumper includes first and second side lift members with a lift handle extending therebetween. The first side lift member is coupled to a first side panel of a drive tunnel. The second side lift member is coupled to a second side panel of the drive tunnel. The lift handle is disposed aft of and above the drive tunnel. The tow bumper includes first and second side tow members with a cross member extending therebetween. The first side tow member is coupled to the first side panel of the drive tunnel. The second side tow member is coupled to the second side panel of the drive tunnel. The tow bumper is positioned below the lift bumper. A towing assembly is coupled to the cross member of the tow bumper.
Embodiments describe a method of controlling a two-stroke internal combustion engine is shown. The method includes selecting one set of two or more sets of engine parameter inputs or a weighted value of two or more sets of engine parameter inputs, determining an engine output parameter from the selection, and utilizing the determined engine output parameter to control one or more engine operations; re-selecting one set of two or more sets of engine parameter inputs or a weighted value of two or more sets of engine parameter inputs during engine operation, utilizing the reselected output parameters to adjust one or more engine operations. Each set of engine parameter inputs includes a direct measurement of crankcase pressure and engine speed and optionally one or more of barometric pressure, exhaust valve position, air temperature, engine coolant temperature, exhaust temperature, boost pressure, crankshaft position and direction of rotation, humidity, fuel pressure, fuel temperature, detonation sensor level, exhaust oxygen content, and throttle valve angle.
F02D 41/08 - Introducing corrections for particular operating conditions for idling
F02B 33/04 - Engines with reciprocating-piston pumpsEngines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
F02B 33/28 - Component parts, details, or accessories of crankcase pumps not provided for in, or of interest apart from, groups
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
The present disclosure relates to a hitch assembly for an off-road vehicle having different components such as a frame, an engine assembly, a suspension assembly, and a hitch assembly. The hitch assembly is coupled to a rear part of the frame of the vehicle so as to get support therefrom. The hitch assembly is configured to be attached to an external load and is further configured to provide secure attachment and support of the external load therewith.
A braking system for a snowmobile includes a track driveshaft and a splined spacer. The track driveshaft has an outer spline and is formed from a first material. The splined spacer has an inner spline and an outer spline. The inner spline of the splined spacer forms a splined connection with the outer spline of the track driveshaft such that the splined spacer is coaxially positioned about the track driveshaft. The outer spline of the splined spacer is configured to form a splined connection with an inner spline of a brake rotor. The splined spacer is formed from a second material that is different from the first material.
An off-highway recreational vehicle having a longitudinal centerline includes a frame and a rear suspension. The rear suspension includes a left A-arm, wherein the left A-arm has a pivot axis, the pivot axis being on a right-hand side of the longitudinal centerline.
B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
B60K 17/344 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
B60K 20/06 - Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means mounted on steering column or the like
B60N 2/015 - Attaching seats directly to vehicle chassis
B60N 2/02 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
B60N 2/24 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles for particular purposes or particular vehicles
B60N 3/04 - Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats
B60T 1/08 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels using fluid or powdered medium
B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
An attachment system includes a connector that is removably securable to a vehicle body or a mounting bracket that is securable to a vehicle body. The connector includes a housing and a connecting pin extending from a surface of the housing. The connecting pin is receivable in the mounting bracket or the vehicle body in a first position, and the connecting pin is moveable to a second position such that a portion of the mounting bracket or vehicle body is located intermediate a portion of the connecting pin and the housing. The connector further includes a locking pin moveable from a locking position to a release position. The locking pin is engaged with the mounting bracket or the vehicle body in the locking position, thereby inhibiting movement of the connecting pin from the second position. The locking pin is disengaged from the mounting bracket or the vehicle body when in the release position, thereby allowing removal of the connecting pin from the vehicle body or the mounting bracket.
The present disclosure relates to an off-road vehicle having different features such as an engine assembly, a frame having a frame structure, and a rear mount assembly facilitating easy installation of the engine assembly, and a method of installing the engine assembly. Embodiments of the present disclosure also describe a removable frame member facilitating the installation of the engine assembly from a seating area into a rearward portion of the vehicle. The removable frame member is positioned at least partially forward of the installed engine assembly and in a lateral direction of the vehicle. The frame structure and the rear mount assembly provide more efficient assembly of the engine and transmission assembly into a tight space envelope.
Methods, systems, and vehicles that control the temperature of a device included in the vehicle are presented herein. The temperature of the device is controlled by ventilating the device with drivetrain air, such as transmission cooling air. In some embodiments, the device is at a greater temperature than the drivetrain air, which cools the device. In other embodiments, the device is at a lesser temperature than the drivetrain air, which heats the device. The drivetrain air is provided to the device through an exhaust duct coupled to the vehicle's transmission. The drivetrain exhaust air is preferably circulated by the transmission. The transmission may be a continuously variable transmission. The device may be an oxygen sensor that is coupled to an engine exhaust pipe. The oxygen sensor is thermally coupled to the engine exhaust and the engine exhaust pipe, which are at greater temperatures than the transmission exhaust air.
F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
B60K 13/04 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F01N 13/08 - Other arrangements or adaptations of exhaust conduits
F16H 9/14 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using only one pulley built-up out of adjustable conical parts
F16H 55/56 - Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
F16H 57/027 - GearboxesMounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
F16H 57/035 - Gearboxes for gearing with endless flexible members
F16H 57/04 - Features relating to lubrication or cooling
An exhaust system for a snowmobile includes a muffler housing, the bottom end of the muffler housing including a muffler exhaust outlet configured to emit exhaust. The exhaust system includes a muffler housing cover spaced from the muffler housing to define an airflow channel therebetween, the muffler housing cover forming a bottom opening. The exhaust system also includes a gas combiner at least partially surrounding the muffler exhaust outlet on the bottom end of the muffler housing and extending through the bottom opening of the muffler housing cover. The gas combiner receives air from the airflow channel and the exhaust from the muffler exhaust outlet to emit a combined air-exhaust stream.
A running board assembly for a snow vehicle includes a support member positioned outboard from a tunnel of the snow vehicle. The support member includes a first end, a second end, and an attachment element located intermediate of the first end and the second end. One or more foot support members is disposed inboard from the support member. A support leg is removably securable to the attachment element of the support member. The support leg includes a mounting feature securable to a rear suspension component disposed below an upper surface of a drive track.
A wear strip assembly for a snowmobile includes a wear strip comprising a first wear-resistant polymer securable to a skid rail beam of a snowmobile. Inserts are fastened within the wear strip such that lower surfaces of the inserts are substantially flush with a lower surface of the wear strip. Each of the inserts includes a second wear-resistant polymer that is more wear resistant than the first wear-resistant polymer. Between 40 and 50 percent of the lower surface of the portion of the rail is occupied by the inserts. The skid rail beam includes a straight portion and an angled portion, the inserts being positioned along the straight portion.
A skid frame for a snowmobile is disclosed including a generally planar skid surface extending between front and rear idler wheels. The front and rear idler wheel are offset from one another and define a longitudinal direction. A track encircles the skid frame having the skid surface positioned over a center of the track such that a major longitudinally extending portion of the track that is coextensive with the skid surface has first and second unsupported lateral portions on either side of the skid surface. The first and second unsupported lateral portions extend in the horizontal direction at least 25 percent of a width of the track. A suspension arm member may mount the skid rail and include mount portions for mounting to a tunnel and spanning a distance at least twice the width of the longitudinal beam.
Embodiments describe a method of controlling a two-stroke internal combustion engine. A method of controlling a two-stroke internal combustion engine includes determining a base nominal exhaust gas temperature, determining a base barometric pressure correction to base nominal exhaust gas temperature, determining exhaust gas temperature differential, determining exhaust gas temperature injection correction, and utilizing the exhaust gas temperature injection correction to make a final short-term fuel or ignition correction.
F02P 5/04 - Advancing or retarding electric ignition sparkControl therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
F02B 75/02 - Engines characterised by their cycles, e.g. six-stroke
F02D 41/38 - Controlling fuel injection of the high pressure type
An adjustable riser assembly for a vehicle, wherein the riser assembly comprises a hollow outer body, an inner body telescopically slidingly disposable within the outer body, and a hand operated height adjustment pin assembly structured and operable to set and retain a selectable position of the inner body and a position of the outer body relative to each other to thereby set and retain and adjustable overall length of the adjustable riser assembly.
A steering system for a snowmobile includes a handlebar assembly and a steering column that has an upper end coupled to the handlebar assembly. An electronic steering assist unit is coupled to the steering column between upper and lower posts of the steering column. A steering arm assembly is coupled to a lower end of the lower post. First and second tie rods respectively couple the steering arm assembly to first and second ski assemblies such that turning the handlebar assembly, together with the assistance of the electronic steering assist unit, causes the ski assemblies to pivot. A floating mounting system couples the electronic steering assist unit to forward spars of the frame assembly to prevent a torque pre-load on the electronic steering assist unit. The steering column and the electronic steering assist unit share a common axis of rotation that is positioned along a centerline of the snowmobile.
An exhaust system for a snowmobile includes a muffler housing, the bottom end of the muffler housing including a muffler exhaust outlet configured to emit exhaust. The exhaust system includes a muffler housing cover spaced from the muffler housing to define an airflow channel therebetween, the muffler housing cover forming a bottom opening. The exhaust system also includes a gas combiner at least partially surrounding the muffler exhaust outlet on the bottom end of the muffler housing and extending through the bottom opening of the muffler housing cover. The gas combiner receives air from the airflow channel and the exhaust from the muffler exhaust outlet to emit a combined air-exhaust stream.
A recreational off-highway vehicle includes side-by-side passenger and driver seats held within a chassis. The seats sit low in the chassis and are covered by a roll cage. Grab handles are positioned on the sides of the passenger seat. Select large round tubing protects the vehicle, while rectangular tubing frames the portions of the vehicle beneath body panels. The vehicle is powered by an engine rearward of the seats that is connected to a transaxle. A radiator is positioned above the engine. A cover with an access panel is situated between the engine and the passenger seats. The vehicle is suited for rough terrain travel.
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60N 2/01 - Arrangement of seats relative to one another
B60N 2/24 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles for particular purposes or particular vehicles
B62D 65/10 - Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being engines, clutches or transmissions
B60K 11/06 - Arrangement in connection with cooling of propulsion units with air cooling
B60R 21/00 - Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
Embodiments of the present disclosure describe a snow vehicle including an engine mounted on a frame, a drive track in contact with the frame, a drive train operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track, a fork connected to the frame, one or more skis connected to the fork, a drop fork component positioned between a fork and handlebars, and an exhaust system. The drive train includes a continuously variable transmission (CVT) positioned within a CVT housing.
Embodiments relate to an off-road vehicle comprising a frame, including at a frame, a passenger compartment, a driveline that includes at least a drive system and a driven system, and a constant velocity (CV) joint for coupling the driven system to the drive system. The CV joint includes a housing, a coupling shaft, a detent, a plunge pin and an actuation pin, wherein the actuation pin has a first end that is accessible via an aperture in the housing, wherein actuation of the actuation pin determines whether the plunge pin is in the first position or the second position.
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
A rear member of a running board assembly for a snow vehicle. The rear member includes a transition body positionable adjacent a side wall of a tunnel of the snow vehicle. The transition body comprises a forward end and a rearward end extending upward and rearward therefrom. The rear member further includes a flange extending downward and rearward from the transition body. The flange is positionable adjacent the side wall of the tunnel. The rear member further includes a bumper arm mount positioned at the rearward end of the transition body. The bumper arm mount is engageable with a bumper arm of the snow vehicle.
Embodiments of the present disclosure describe a snowmobile including an engine mounted on the chassis, a drive track in contact with the chassis, and a drive train, operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track. The drive train includes a driveshaft, comprising a tubular driveshaft including two or more interior channels, the channels positioned in a substantially longitudinal orientation, two or more sprocket driving features on an exterior surface of the tubular driveshaft, and one or more fitting components, positioned at one or more distal ends of the driveshaft.
A snowmobile includes a chassis, at least one ski, and a skid frame that includes one or more slide rails extending longitudinally, rear idler wheels, upper idler wheels, and a rear suspension. The rear suspension may further include a flexible, composite member, a rear shock connected between the one or more slide rails and the upper cross member, a rear shock link, a rear cross member connected between the one or more slide rails and a lower shock pivot member pivotally connected to the rear cross member. The rear shock is connected to a rear portion of the lower shock pivot member and the rear shock link is connected via a spherical pivot joint to a forward end of the lower shock pivot member. The flexible, composite member is coupled at a first end to the one or more slide rails and at a second end to the chassis.
A utility vehicle including a frame, a body supported by the frame, a seating area supported by the frame, front and rear ground engaging members supporting the frame and the body, and a powertrain drivingly coupled to the front and rear ground engaging members. The powertrain includes a transmission and an engine having a plurality of cylinders. The engine includes an intake manifold, a throttle valve, and an exhaust. The intake manifold and throttle valve are positioned longitudinally forward of the plurality of cylinders and the exhaust is positioned longitudinally rearward of a forwardmost portion of the plurality of cylinders.
B60K 13/02 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
B60G 3/14 - Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
B60G 3/18 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
B60G 3/20 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
B60G 7/02 - Attaching arms to sprung part of vehicle
B60K 5/04 - Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
B60K 5/10 - Arrangement or mounting of internal-combustion or jet-propulsion units providing for ready detachment of engine
B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
B60K 17/24 - Arrangement of mountings for shafting
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 21/11 - Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
B60K 5/00 - Arrangement or mounting of internal-combustion or jet-propulsion units
