Abstract

A battery pack for a vehicle is presented. The battery pack comprises a plurality of bricks, each brick of the plurality of bricks comprising a phase change material block, a side of the phase change material block defining a plurality of channels, and a plurality of battery cells, each battery cell being disposed at least in part in the phase change material block; and at least one connector for electrically connecting a first one of the plurality of bricks to a second one of the plurality of bricks, the at least one connector being disposed at least partially in one of the plurality of channels.

IPC Classes  ?

• H01M 10/625 - Vehicles
• H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
• H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
• H01M 2/20 - Current-conducting connections for cells
• H01M 10/613 - Cooling or keeping cold
• H01M 2/34 - Current-conducting connections for cells with provision for preventing undesired use or discharge
• B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
• B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
• B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries

Abstract

A method for recovering energy during braking of a vehicle is provided. The vehicle has at least one rotatable ground engaging member, a generator operatively connected to the at least one rotatable ground engaging member, and at least one energy storage device coupled to the generator. The method has the steps of: determining a speed of the vehicle; determining a desired slip of the at least one rotatable ground engaging member based at least in part on the speed of the vehicle; and applying a braking torque to the at least one rotatable ground engaging member using the generator based at least in part on the desired slip. A regenerative braking system for a vehicle and a vehicle having such a system are also disclosed.

IPC Classes  ?

• B60W 30/18 - Propelling the vehicle
• B60L 3/10 - Indicating wheel slip
• B60L 7/14 - Dynamic electric regenerative braking for vehicles propelled by AC motors
• B60L 11/14 - with provision for direct mechanical propulsion
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60K 6/48 - Parallel type
• B60K 6/387 - Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
• B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
• B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
• B60W 20/10 - Controlling the power contribution of each of the prime movers to meet required power demand
• B60W 20/15 - Control strategies specially adapted for achieving a particular effect
• B60W 20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers

Abstract

A battery pack for a vehicle is presented. The battery pack comprises a plurality of bricks, each brick of the plurality of bricks comprising a phase change material block, a side of the phase change material block defining a plurality of channels, and a plurality of battery cells, each battery cell being disposed at least in part in the phase change material block; and at least one connector for electrically connecting a first one of the plurality of bricks to a second one of the plurality of bricks, the at least one connector being disposed at least partially in one of the plurality of channels.

IPC Classes  ?

• H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
• H01M 2/20 - Current-conducting connections for cells
• H01M 2/34 - Current-conducting connections for cells with provision for preventing undesired use or discharge
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders

Abstract

A method of shutting down an off-road vehicle is provided. The vehicle includes two rear wheels, two front wheels, a motor selectively operatively connected to the wheels, a front driveshaft selectively connected to the motor to selectively drive the two front wheels, and a rear driveshaft connected to the motor to drive the two rear wheels. The method includes: interrupting operation of the motor; and automatically operatively connecting the front driveshaft to the motor once the operation of the motor has been interrupted.

IPC Classes  ?

• B60L 3/08 - Means for preventing excessive speed of the vehicle
• B60L 15/10 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60R 21/13 - Roll-over protection
• B60T 1/06 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission
• B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
• B60K 20/08 - Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means dashboard-mounted
• 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
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• B62D 63/02 - Motor vehicles
• 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 11/06 - Arrangement in connection with cooling of propulsion units with air cooling

Abstract

A method for recovering energy during braking of a vehicle is provided. The vehicle has at least one rotatable ground engaging member, a generator operatively connected to the at least one rotatable ground engaging member, and at least one energy storage device coupled to the generator. The method has the steps of: determining a speed of the vehicle; determining a desired slip of the at least one rotatable ground engaging member based at least in part on the speed of the vehicle; and applying a braking torque to the at least one rotatable ground engaging member using the generator based at least in part on the desired slip. A regenerative braking system for a vehicle and a vehicle having such a system are also disclosed.

IPC Classes  ?

• B60L 7/10 - Dynamic electric regenerative braking
• B60K 6/22 - 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
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• B60L 7/18 - Controlling the braking effect
• B60W 20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers

Abstract

A battery pack for a vehicle is presented. The battery pack comprises a plurality of bricks, each brick of the plurality of bricks comprising a phase change material block, a side of the phase change material block defining a plurality of channels, and a plurality of battery cells, each battery cell being disposed at least in part in the phase change material block; and at least one connector for electrically connecting a first one of the plurality of bricks to a second one of the plurality of bricks, the at least one connector being disposed at least partially in one of the plurality of channels.

IPC Classes  ?

• H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
• H01M 10/625 - Vehicles
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa

Abstract

A watercraft propulsion system has a driveshaft, an impeller or a propeller, an overrunning clutch, an electric motor and an internal combustion engine. The overrunning clutch has a first race and a second race. The first race is one of an inner race and an outer race. The second race is an other one of the inner race and the outer race. The first race is connected to the driveshaft for driving the driveshaft. The electric motor has a motor output shaft operatively connected to the first race. The internal combustion engine has an engine output shaft operatively connected to the second race. The overrunning clutch is connected to the motor output shaft and the engine output shaft such that the electric motor is able to selectively rotate the first race at a higher speed than the second race. A watercraft having the propulsion system is also disclosed.

IPC Classes  ?

• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• B63H 1/14 - Propellers
• B63H 21/14 - Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
• B63H 21/20 - Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units

Abstract

An off-road vehicle has four wheels and side-by-side driver and passenger seats. At least two of the wheels are driven by an electric motor powered by batteries disposed in the vehicle.

IPC Classes  ?

• B60L 3/08 - Means for preventing excessive speed of the vehicle
• B60L 15/10 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• 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 20/08 - Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means dashboard-mounted
• B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
• B60T 1/06 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission
• B62D 63/02 - Motor vehicles
• B60R 21/13 - Roll-over protection
• B60K 11/06 - Arrangement in connection with cooling of propulsion units with air cooling
• B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft

Abstract

A watercraft propulsion system has a driveshaft, one of an impeller and a propeller, an overrunning clutch having outer and inner races, a driveshaft connector connecting the driveshaft to the outer race, an electric motor having a motor output shaft operatively connected to the outer race, and an internal combustion engine. The engine has a crankcase and a crankshaft operatively connected to the inner race. A lubricant pump supplies lubricant to the overrunning clutch via lubricant passages in the crankshaft. A watercraft having the propulsion system and a hybrid propulsion conversion system for a watercraft are also disclosed.

IPC Classes  ?

• B63H 20/00 - Outboard propulsion units, e.g. outboard motors or Z-drivesArrangements thereof on vessels
• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• F04B 35/00 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
• B63H 1/00 - Propulsive elements directly acting on water
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• B63H 21/20 - Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
• B63H 23/30 - Transmitting power from propulsion power plant to propulsive elements characterised by use of clutches
• B63H 23/34 - Propeller shaftsPaddle-wheel shaftsAttachment of propellers on shafts
• B63B 29/00 - Accommodation for crew or passengers not otherwise provided for
• B63H 21/36 - Covers or casing arranged to protect plant or unit from marine environment

Abstract

A vehicle has an engine having a crankshaft, a hydraulically controlled multi-plate clutch operatively connected to the crankshaft, and an output shaft operatively connected to the clutch. The clutch selectively transmits power from the crankshaft to the output shaft. A propulsion element is operatively connected to the output shaft. A hydraulic fluid supply system is fluidly connected to the clutch for supplying pressurized hydraulic fluid to the clutch. A controller is connected to the hydraulic fluid supply system. The controller receives a torque signal indicative of engine torque and controls the hydraulic fluid supply system based at least in part on the torque signal. A clutch control method and system are also disclosed.

IPC Classes  ?

• G06F 7/00 - Methods or arrangements for processing data by operating upon the order or content of the data handled

Abstract

A method of controlling a hydraulic CVT of a vehicle comprises: determining a speed of rotation of a driving shaft; determining a speed of rotation of a driven shaft; determining a ratio of the speed of rotation of the driving shaft versus the speed of rotation of the driven shaft; determining an engine torque; determining a base clamping force to be applied by the driving pulley onto the belt based on the ratio and the engine torque; determining a desired speed of rotation of the driving shaft; determining a corrective clamping force by comparing the speed of rotation of the driving shaft to the desired speed of rotation of the driving shaft; and controlling a hydraulic pressure applied to a movable sheave to apply a sum of the base and corrective clamping forces onto the belt. A vehicle having a CVT controlled by the method is also disclosed.

IPC Classes  ?

• G06F 7/00 - Methods or arrangements for processing data by operating upon the order or content of the data handled

Abstract

An off-road vehicle has four wheels and side-by-side driver and passenger seats. At least two of the wheels are driven by an electric motor powered by batteries disposed in the vehicle.

IPC Classes  ?

• B60F 5/00 - Other vehicles capable of travelling in or on different media
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
• B60K 23/00 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train

Abstract

A jet propulsion unit has a water inlet, a pump body, an impeller, and a valve assembly fluidly. The valve assembly has a valve housing having an inlet fluidly connected to the pump body, a first outlet and a second outlet. A valve body is disposed in the valve housing and is movable between first and second positions. In the first position, water from a body of water flows consecutively through the water inlet, the pump body, the inlet of the valve housing, the valve housing and the first outlet of the valve housing. In the second position, water from the body of water flows consecutively through the water inlet, the pump body, the inlet of the valve housing, the valve housing, and the second outlet of the valve housing. A watercraft having the jet propulsion unit is also disclosed.

IPC Classes  ?

• B63H 11/113 - Pivoted outlet

Abstract

A vehicle powertrain has an engine, a driving shaft having a passage defined therein, a driven shaft, a pump, a hydraulic fluid reservoir, and a CVT. A driving pulley of the CVT includes a fixed sheave and a movable sheave disposed on the driving shaft for rotation therewith, a spring biasing a movable sheave away from the fixed sheave, and a CVT chamber fluidly communicating with the passage of the driving shaft. The pump supplies hydraulic fluid from the reservoir to the passage in the driving shaft. The hydraulic fluid flows from the passage to the CVT chamber to create a hydraulic pressure in the CVT chamber. The hydraulic pressure in the CVT chamber biases the movable sheave toward the fixed sheave.

IPC Classes  ?

• F16H 59/00 - Control inputs to change-speed- or reversing-gearings for conveying rotary motion
• F16H 9/18 - 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 two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
• F16H 55/56 - Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
• F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• 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

Abstract

A driving pulley for a CVT has a shaft, a fixed sheave mounted on the shaft, a first sleeve disposed around the shaft and being operatively connected to the shaft, a movable sheave mounted on the first sleeve, a second sleeve disposed around the first sleeve and being connected to the shaft, a spring biasing the movable sheave away from the fixed sheave, and a CVT chamber having an annular cross-section. The fixed and movable sheaves are adapted to receive a belt therebetween. The CVT chamber has at least one opening adapted for fluidly communicating the CVT chamber with a hydraulic fluid reservoir. Hydraulic pressure in the CVT chamber biases the movable sheave toward the fixed sheave. The CVT chamber has an inner wall formed by the first sleeve, an outer wall formed by the second sleeve, an outer end, and an inner end formed by the movable sheave.

IPC Classes  ?

• F16H 55/56 - Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• 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 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

Abstract

A method of controlling a hydraulic CVT of a vehicle includes: determining a speed of rotation of a driving shaft; determining a speed of rotation of a driven shaft; determining a ratio of the speed of rotation of the driving shaft versus the speed of rotation of the driven shaft; determining an engine torque; determining a base clamping force to be applied by the driving pulley onto the belt based on the ratio and the engine torque; determining a desired speed of rotation of the driving shaft; determining a corrective clamping force by comparing the speed of rotation of the driving shaft to the desired speed of rotation of the driving shaft; and controlling a hydraulic pressure applied to a movable sheave to apply a sum of the base and corrective clamping forces onto the belt. A vehicle having a CVT controlled by the method is also disclosed.

IPC Classes  ?

• G06F 7/00 - Methods or arrangements for processing data by operating upon the order or content of the data handled

Abstract

A vehicle has an engine having a crankshaft, a hydraulically controlled multi- plate clutch operatively connected to the crankshaft, and an output shaft operatively connected to the clutch. The clutch selectively transmits power from the crankshaft to the output shaft. A propulsion element is operatively connected to the output shaft. A hydraulic fluid supply system is fluidly connected to the clutch for supplying pressurized hydraulic fluid to the clutch. A controller is connected to the hydraulic fluid supply system. The controller receives a torque signal indicative of engine torque and controls the hydraulic fluid supply system based at least in part on the torque signal. A clutch control method and system are also disclosed.

IPC Classes  ?

• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• B60K 23/02 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
• F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
• F16D 43/286 - Internally controlled automatic clutches actuated by fluid pressure controlled by torque
• F16D 48/02 - Control by fluid pressure

Abstract

An inlet grate cleaning system for a water jet propulsion system to be used in a watercraft. The water jet propulsion system has a water passage, the water passage has an inlet and the inlet has a forward area and a rearward area with respect to the watercraft. The inlet grate cleaning system comprises a pump and at least one water intake fluidly connected to the pump. At least one water outlet is also fluidly connected to the pump. The pump is adapted for pumping water from the at least one water intake to the at least one water outlet to create at least one jet of water. The at least one water outlet is positioned so as to direct the at least one jet of water toward an inlet grate.

IPC Classes  ?

• B63H 11/01 - Marine propulsion by water jets having means to prevent foreign material from clogging fluid passageway
• B63H 11/00 - Marine propulsion by water jets

Abstract

A method of controlling a hydraulic CVT of a vehicle comprises: determining a speed of rotation of a driving shaft; determining a speed of rotation of a driven shaft; determining a ratio of the speed of rotation of the driving shaft versus the speed of rotation of the driven shaft; determining an engine torque; determining a base clamping force to be applied by the driving pulley onto the belt based on the ratio and the engine torque; determining a desired speed of rotation of the driving shaft; determining a corrective clamping force by comparing the speed of rotation of the driving shaft to the desired speed of rotation of the driving shaft; and controlling a hydraulic pressure applied to a movable sheave to apply a sum of the base and corrective clamping forces onto the belt. A vehicle having a CVT controlled by the method is also disclosed.

IPC Classes  ?

• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• B62D 55/07 - Mono-track vehicles
• F16H 61/30 - Hydraulic motors therefor
• F16H 9/18 - 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 two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable

Abstract

A vehicle powertrain has an engine, a driving shaft having a passage defined therein, a driven shaft, a pump, a hydraulic fluid reservoir, and a CVT. A driving pulley of the CVT includes a fixed sheave and a movable sheave disposed on the driving shaft for rotation therewith, a spring biasing the movable sheave away from the fixed sheave, and a CVT chamber fluidly communicating with the passage of the driving shaft. The pump supplies hydraulic fluid from the reservoir to the passage in the driving shaft. The hydraulic fluid flows from the passage to the CVT chamber to create a hydraulic pressure in the CVT chamber. The hydraulic pressure in the CVT chamber biases the movable sheave toward the fixed sheave.

IPC Classes  ?

• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• F16H 61/30 - Hydraulic motors therefor
• F16H 9/18 - 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 two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
• B62D 55/07 - Mono-track vehicles

Abstract

A driving pulley for a CVT has a shaft, a fixed sheave mounted on the shaft, a first sleeve disposed around the shaft and being operatively connected to the shaft, a movable sheave mounted on the first sleeve, a second sleeve disposed around the first sleeve and being connected to the shaft, a spring biasing the movable sheave away from the fixed sheave, and a CVT chamber having an annular cross-section. The fixed and movable sheaves are adapted to receive a belt therebetween. The CVT chamber has at least one opening adapted for fluidly communicating the CVT chamber with a hydraulic fluid reservoir. Hydraulic pressure in the CVT chamber biases the movable sheave toward the fixed sheave. The CVT chamber has an inner wall formed by the first sleeve, an outer wall formed by the second sleeve, an outer end, and an inner end formed by the movable sheave.

IPC Classes  ?

• F16H 55/56 - Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
• B62D 55/07 - Mono-track vehicles
• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• F16H 9/18 - 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 two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable