A hydraulic pump includes a pump module and a main housing, wherein the pump module has a pump housing and a cover. A pump element is arranged in the pump housing and is connected to a rotor arranged outside the pump housing, and the cover is latched to the pump housing by means of a first detent connection. The main housing has a stator, within which the rotor is arranged, and the main housing is latched to the cover by means of a second detent connection.
A rotary vane pump includes a pump housing, a stator, a rotor, a plurality of vanes which are accommodated in the rotor so as to be displaceable in the radial direction, so that they delimit a plurality of pump chambers between themselves, the stator and the rotor. A radially inner cam surface is provided, against which the vanes rest, wherein secondary chambers are delimited in the radial direction between the cam surface and the rotor and in the circumferential direction between the vanes, with a suction inlet and a pressure outlet being assigned to the secondary chambers.
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
A fluid line component with a fluid duct, a sealing surface which surrounds the outlet of the fluid duct on an outer side of the fluid line component, and an axial seal which bears against the sealing surface and can be brought to bear against an opposite surface of a mating piece in order to connect the fluid duct leaktightly to a duct in the mating piece. The axial seal has a support and a sealing element which is assembled on the support, wherein the support can be displaced relative to the sealing surface. The invention also relates to an assembly with such a fluid line component, wherein the fluid line component is a hydraulic pump and the mating piece is a receptacle in a housing of a fluid storage tank.
A hydraulic unit includes a reversing pump which has two pump connections which act as a suction connection and pressure connection depending on rotation direction. The hydraulic unit has at least one suction intake for intake of hydraulic fluid. Starting from the suction intake, a suction line portion extends to each of the pump connections, and a non-return valve blocking in the direction towards the suction intake is arranged in each suction line portion. Starting from a first pump connection, a first pressure line extends to a lubricant connection of the hydraulic unit, wherein a non-return valve blocking in the direction towards the pump connection is arranged in the first pressure line. Starting from a second pump connection, a second pressure line leads to an actuator connection (of the hydraulic unit, wherein the second pressure line is free of valves. Furthermore, an assembly comprising a hydraulic unit is indicated.
A gear-change selector module (10) for a gearshift of a motor vehicle has a movable element (22) and a shift fork (16) having a carrier arm (24) which engages in a recess (26) of the movable element (22). The recess (26) has two actuating faces (30, 31) which cooperate with carrier faces (40, 41) of the carrier arm (24). Viewed in a section running through the centre axis (K) of the movable element (22) and the centre axis (M) of the recess (26), the actuating faces (30, 31) are each convex in a first portion (32) extending from the centre axis (K) in the direction of the outside (28) of the movable element (22). Furthermore, viewed in a section running through the centre axis (K) of the movable element (22) and the centre axis (M) of the recess (26), the carrier faces (40, 41) each extend in a first portion (42) from radially outside the movable element (22) up to the centre axis (K) of the movable element (22), and in a second portion (46) from the centre axis (K) in the direction of the free end (48) of the carrier arm (24). The carrier faces (40, 41) are convex in the second portion (46).
A gear-change selector module has a pipeline module (14) comprising a plurality of pipes (22) for providing a working fluid, and a gear-change selector housing (12) having a plurality of channels (20) which are each assigned to one of the pipes (22). The pipes (22) are coupled to the channels (20) via a respective plug-in connection (24). Each plug-in connection (24) has a seal (30). Viewed in the plug-in direction (S), the seals (30) are arranged at different levels (31, 32, 33).
A shift fork (20) for a gear-change selector module of a motor vehicle has a shift fork base body (22) and a sensor emitter (30) which is moulded onto the shift fork base body (22). A method for production of a shift fork (20) with a sensor emitter (30) is also provided.
A piston (20) for a gear-change selector module of a gearshift has a piston body (26), at least one sealing element (46, 50), and a cap (36) which is attached to the piston body (26) by means of a clip connection (38). Furthermore, the sealing element (46, 50) is here attached to the piston body (26) by means of the cap (36). Also a gear-change selector module with a piston (20), and a method for mounting a piston (20), are provided.
F16H 63/30 - Constructional features of the final output mechanisms
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16J 15/56 - Other sealings for reciprocating rods
9.
LIQUID PUMP, IN PARTICULAR FOR A COMPONENT OF A DRIVE TRAIN OF A MOTOR VEHICLE
A liquid pump having an electric motor, a pump assembly, which is driven by the electric motor, and a housing wherein the electric motor and the pump assembly are arranged, wherein the housing is in the form of a one-piece, injection-moulded pot having a base and side walls, wherein the pump assembly bears against the base, and the electric motor is arranged on the open side of the housing remote from the base.
A pump unit which has at least one high-pressure port and at least one low-pressure port, having a motor and a hydraulic pump which has at least one high-pressure outlet and at least one low-pressure outlet, wherein the high-pressure outlet is connected to the high-pressure port via at least one pressure-regulating valve.
F04C 18/00 - Rotary-piston pumps specially adapted for elastic fluids
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 14/24 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves
F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
11.
Device and method for producing plastics components
A device is for producing a component from a plastics material by injection moulding. The device includes two mould halves that can be pressed together releasably and, in the pressed-together state, form at least one gate region and at least one common cavity for moulding the plastics material. The gate region is fluidically connected to the cavity for the purpose of introducing the plastics material into the cavity. At least one insert part is provided which is arranged at least partially in a partial region of the gate region and is formed to prevent or at least to impede flowing of the plastics material through this partial region.
An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/108 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating partsElements essential to the use of such members
13.
Actuator, in particular slave cylinder, for a device for a clutch actuation in a motor vehicle
H2) axially delimiting the hydraulic chamber are formed on the piston, so that by pressurizing the pneumatic chamber the control element can be longitudinally moved via the piston in an actuating direction (B) against an external return force acting in a return direction (R), and a piston movement can be controlled by a pressure build-up in the at least one hydraulic chamber.
H2). Furthermore, a control system (CPU) is provided to independently control the pressure application of the pneumatic chamber and valve positions of the 2/2-way proportional valves.
An electric parking brake actuator has a transmission mechanism, which is rotationally drivable by an electric motor and converts rotational movement into an axial movement of an actuating rod that carries an actuating element for the parking brake. The actuating rod normally moves by electric motor displacement via the transmission mechanism from an unblocking position to a blocking position and vice versa. A blocking mechanism serves the purpose of holding the actuating rod in the unblocking position of the actuating rod against the force of a spring element. A blocking disc, which is in drive connection with the transmission mechanism, has a stop surface for a locking device in only one rotational direction of the blocking disc. For secondary alternate operation the stop surface is releasable by the locking device so that the actuating rod is biased by the spring element to the blocking position without electric-motorized assistance.
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
F16D 65/14 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position
A master cylinder (10) has a cylinder housing (12) in which a piston (14) that can be moved between a piston rest position and a piston actuation position by means of a piston rod (18) variably delimits a pressure chamber (16). The ball head in the recess lies directly against the piston in a highly compact manner such that pressure forces (D) applied via the piston rod can be constantly transmitted directly to the piston. Furthermore, the formfitting connection is located between the undercut and the stop end of the insert part such that tensile forces (Z) applied via the piston rod reinforce the formfitting connection in a piston actuation position in order to ensure a high degree of pull-out reliability.
The invention relates to a hydraulic cylinder (10), in particular a master cylinder for a hydraulic clutch or brake actuation for motor vehicles, comprising a cylinder housing (12) in which a piston (14) is guided such that it can be moved in an axial direction in order to variably limit a pressure chamber (16). In order to detect a position and/or a stroke of the piston in the axial direction, a sensor assembly (18) is provided with a sensor (20) attached to the cylinder housing and a rod-type magnet (22) retained on the piston and cooperating with said sensor. In order to position the magnets precisely on the piston in as simple and cost-effective manner as possible, the magnet is elastically pre-tensioned against contact surfaces (26, 84) formed on the piston, in the axial direction and in a transverse direction to same, by means of a securing element (24) secured to the piston, and thereby retained on the piston in a play-free manner in these directions.
A hydraulic cylinder comprises a cylinder housing (12) having a cylinder borehole (14) with a central axis (15), in which a piston (17) is accommodated, which borders a pressure chamber (19) and which can be moved along the central axis in order to generate a pressure in the pressure chamber. The hydraulic cylinder also comprises a sensor assembly (22) having a sensor (23) that is fixed in relation to the cylinder housing (12) and a signal element (24) that is held on a coupling element (28) in a guide shaft (26) running in the cylinder housing in parallel to the cylinder borehole near to the sensor, via which coupling element the signal element is operatively connected to the piston, such that the signal element can be moved relative to the sensor in accordance with a movement of the piston out of the resting position, in order to detect a working position of the piston. In addition, the coupling element is guided such that it is centred in relation to the central axis of the cylinder borehole, in order to bring about a substantially shear-force-free transmission of movement from the piston to the signal element.
A device for vibration reduction in a hydraulic actuating system has a housing in which a pressure chamber is able to be disposed in fluid connection with the actuating system by way of at least one connection and bounded by a resilient membrane. The membrane has a pressure-loadable surface and a surface which is remote therefrom and provided with a profiling, by way of which the membrane when loaded with pressure can be supported on a fixed wall section of the housing and which has at least one web section comprising at least one web with a web foot, a web end adjacent to the wall section, and a defined web cross-section. The web is of asymmetrical construction with respect to a notional plane extending normal to the pressure-loadable surface through the web foot and perpendicularly to the web cross-section.
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F16D 25/08 - Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
An actuator (12) for a device for clutch actuation in a motor vehicle comprises a cylinder housing (14) having a pneumatic pressure connection (Ep) and at least one hydraulic pressure connection (EH1, EH2), in which cylinder housing a piston (16) operatively connected to a control element (G) is longitudinally moveably accommodated, which together with the cylinder housing defines a pneumatic chamber (KP) that can be pressurized via the pneumatic pressure connection, and at least one hydraulic chamber (KH1, KH2) connected to the hydraulic pressure connection, which chambers are separated from one another by a sealing arrangement (18, 20). In a very compact design of the actuator, a pneumatic operative surface (AP) axially delimiting the pneumatic chamber and at least one opposing hydraulic operative surface (AH2) axially delimiting the hydraulic chamber are formed on the piston, so that by pressurizing the pneumatic chamber the control element can be longitudinally moved via the piston in an actuating direction (B) against an external return force acting in a return direction (R), and a piston movement can be controlled by a pressure build-up in the at least one hydraulic chamber.
The invention relates to a device (10) for actuating a clutch, comprising an actuator (12) having a pneumatic chamber (Kp) delimited by a pneumatic active area (Ap), two hydraulic chambers (KH1, KH2) each delimited by a hydraulic active area (AH1, AH2), and a control element (G) that is actively connected to the clutch and can be moved and subjected to a force by said active areas. In order to generate force in an actuating direction (B) against a restoring force acting in a restoring direction (R), the pneumatic active area is subjected to a pneumatic pressure by a compressed air source (QP). The hydraulic chambers can each be hydraulically connected to a storage container (QH) for hydraulic fluid by means of an electromagnetically actuatable 2/2-way proportional valve (VH1, VH2). Furthermore, a control system (CPU) is provided, by means of which the pressure application of the pneumatic chamber and valve positions of the 2/2-way proportional valves can be controlled independently of each other. In this way, by closing either one or the other, or both, of the 2/2-way proportional valves, by means of the respectively associated hydraulic active areas, an actuator movement in the actuating direction or in the restoring direction can be braked in a controlled manner, which allows a sensitive clutch actuation in an energy-efficient manner.
A hydraulic operating device for operating actuators in a motor vehicle transmission has at least two actuation cylinders each containing a cylinder housing. An actuation piston is guided therein along a cylinder axis in a longitudinally displaceable manner. Each actuation piston can be hydraulically loaded and is operatively connected to one of the actuators. The actuation cylinders are combined into a unit that can be flange-mounted on one side, via a flange face, to a dividing wall of a transmission housing of the motor vehicle transmission. The cylinder housings are injection molded from plastic integrally with a flange plate that runs transversely to the cylinder axes, the flange face being formed on the flange plate. The cylinder housings protrude beyond the flange plate, at least on the side of the flange face, in the direction of the cylinder axes.
The invention relates to a hydraulic or pneumatic operating device for operating actuators in a motor vehicle transmission. At least two actuation cylinders are provided, each containing a cylinder housing. An actuation piston is guided therein along a cylinder axis in a longitudinally displaceable manner. Each actuation piston can be hydraulically or pneumatically loaded and is operatively connected to one of the actuators. The actuation cylinders are combined into a unit which can be flange-mounted on or in a transmission housing of the motor vehicle transmission. A sensor for detecting the position of a signal element arranged on each actuation piston is associated with each cylinder housing. An electrical interface, which is signal-connected to the sensors, is integrated in the unit, via which interface the sensors can be mutually contacted.
F16H 61/28 - Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
F16H 59/38 - Inputs being a function of speed of gearing elements
F16H 59/70 - Inputs being a function of gearing status dependent on the ratio established
F16H 63/30 - Constructional features of the final output mechanisms
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/28 - Means for indicating the position, e.g. end of stroke
A liquid pump has a housing with a suction connection, a pressure connection and a electric motor for rotationally driving a conveying device that has a suction inlet and pressure outlet which communicate with the suction connection and the pressure connection respectively. An electronic power unit for the electric motor is adjacent to the motor and extends transversely to the axis of rotation and is on the rear side of the partition wall of the housing. The suction inlet is arranged at a height smaller than an inner radius of an annular gap between the stator and rotor, whereas a rotor passage extends at a constant height, so that a liquid inducted by way of the suction connection is guided in part via the annular gap and undergoes a deflection at the partition wall, cooling the latter before it passes through the rotor passage to the suction inlet.
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
25.
Electric motor driven liquid pump, in particular for the forced lubrication of a manual transmission for motor vehicles
An electric motor driven liquid pump, which can be used for forced lubrication of a motor vehicle manual transmission, has a housing flange-mountable on a fluid container via a flange surface. A stator including a motor winding and a magnetic rotor are incorporated in the housing for conveying liquid. The housing is formed of multiple parts including a pump housing section which has fluid inlets and outlets, a stator housing section which holds the stator and together with the pump housing section, delimits an electronics chamber in which the rotor is arranged, and a motor housing section which together with the stator housing section delimits an electronic chamber in which at least the stator is located. A sealing element seals the flange surface to the fluid container, separates the fluid chamber and the electronic chamber, and seals the latter from the environment.
An electric motor driven fluid pump for forced lubrication of a manual transmission of a motor vehicle, includes a housing having a fluid inlet and a fluid outlet, and an electronically commutated electric motor incorporated therein. The electric motor has a substantially cup-shaped magnetic rotor rotatable around a rotational axis, shaped for conveying fluid, an annular stator having a motor winding which at least partially encloses the rotor in a coaxial arrangement with respect to the rotational axis when viewed along the rotational axis, and a magnetic field sensor for detecting the position of the rotor. The housing includes a stator housing section which holds the stator, separates same from a liquid chamber in which the rotor is arranged, and extends into the rotor by a housing offset formed for receiving the magnetic field sensor.
F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
H02K 5/128 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
H02K 11/25 - Devices for sensing temperature, or actuated thereby
A hydraulic actuation device for a motor vehicle friction clutch has a manually actuatable master cylinder, that has a master pressure chamber which, in a rest position, is fluidically connected to a reservoir. The master cylinder is connected to a slave arrangement that is functionally connected to the motor vehicle friction clutch. A pressure line connects the master pressure chamber to the slave arrangement and in which incorporates an electrically actuatable valve arrangement with an electrically actuatable proportional valve and, connected in parallel, a first check valve which blocks in the direction of the master pressure chamber. A motor pump is connected, on the input side, to the reservoir and can be connected, on the output side, to the pressure line between the valve arrangement and the slave pressure chamber through a second check valve that blocks in the direction of the motor pump.
The invention relates to a hydraulic operating device (10) for operating actuators in a motor vehicle transmission, said device comprising at least two actuation cylinders (16), each containing a cylinder housing (18) and an actuation piston (22) guided therein along a cylinder axis (20) in a longitudinally displaceable manner, which actuation piston can be hydraulically loaded and is operatively connected to one of the actuators. The actuation cylinders are combined into a unit that can be flange-mounted on one side, via a flange face (24), to a dividing wall of a transmission housing of the motor vehicle transmission. To this end, the cylinder housings are injection moulded from plastic integrally with a flange plate (28) that runs transversely to the cylinder axes, the flange face being formed on the flange plate. The cylinder housings protrude beyond the flange plate, at least on the side of the flange face, in the direction of the cylinder axes, such that the installation space requirements for the operating device in or on the transmission housing are minimal.
The invention relates to a hydraulic or pneumatic operating device (10) for operating actuators in a motor vehicle transmission, said device comprising at least two actuation cylinders (16), each containing a cylinder housing (18) and an actuation piston (22) guided therein along a cylinder axis (20) in a longitudinally displaceable manner, which actuation piston can be hydraulically or pneumatically loaded and is operatively connected to one of the actuators. The actuation cylinders are combined into a unit which can be flange-mounted on or in a transmission housing of the motor vehicle transmission. A sensor for detecting the position of a signal element (32) arranged on each actuation piston is associated with each cylinder housing. An electrical interface (34), which is signal-connected to the sensors, is integrated in the unit, via which interface the sensors can be mutually contacted. In addition, at least one sensor (150) for sensing the speed in the motor vehicle transmission and/or a connection for a sensor of this type are integrated into the unit and are likewise signal-connected to the electrical interface for mutual contacting purposes, such that the mounting and contacting of the sensor system can be greatly simplified.
The invention relates to a hydraulic actuation device (10) for a motor vehicle friction clutch (12), comprising: a manually actuatable master cylinder (16), the actuation of which is sensed by a sensor (14) and which has a master pressure chamber (18) which, in a rest position, is fluidically connected to a reservoir (22) by means of a replenishing region (20); a slave arrangement (26) comprising a slave pressure chamber (24) and having a slave cylinder (28) that is functionally connected to said motor vehicle friction clutch; a pressure line (30) which connects the master pressure chamber to the slave pressure chamber and in which an electrically actuatable valve arrangement (38) is connected; a motor pump (32) that is connected, on the input side, to the reservoir and can be connected, on the output side, to the pressure line; and a control unit (40) to which the electrical parts are connected (sensor, valve arrangement, motor pump). The valve arrangement comprises, connected in parallel, an electrically actuatable proportional valve (42) and a first check valve (44) which blocks in the direction of the master pressure chamber, and the motor pump is connected to said pressure line between the valve arrangement and the slave pressure chamber by means of a second check valve (46) that blocks in the direction of the motor pump.
An electric motor driven fluid pump (10), which can be used for forced lubrication of a manual transmission of a motor vehicle, comprises a housing (16) having a fluid inlet (18) and a fluid outlet (18), and an electronically commutated electric motor (26) incorporated therein. The electric motor comprises a substantially cup-shaped magnetic rotor (28) rotatable around a rotational axis (A), with means (30) for conveying fluid, an annular stator (34) having a motor winding (32) which at least partially encloses the rotor in a coaxial arrangement with respect to the rotational axis when viewed along the rotational axis, and a magnetic field sensor (36) for detecting the position of the rotor. The housing thus comprises a stator housing section (40) which holds the stator, separates same from a fluid chamber (42) in which the rotor is arranged, and extends, viewed along the rotational axis, with a housing shoulder (48) into the rotor, which housing shoulder is formed for mounting the magnetic field sensor so that the fluid pump has a low total installation height.
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
F04D 29/22 - Rotors specially for centrifugal pumps
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
32.
ELECTRIC MOTOR DRIVEN FLUID PUMP, IN PARTICULAR FOR THE FORCED LUBRICATION OF A MANUAL TRANSMISSION OF A MOTOR VEHICLE
An electric motor driven fluid pump (10), which can be used for forced lubrication of a motor vehicle manual transmission, comprises a housing (16) flange-mountable on a fluid container (12) via a flange surface (14), which housing holds the fluid inlets and outlets (18, 20) and in which housing a stator (34) comprising a motor winding (32) and a magnetic rotor (28) are incorporated for conveying the fluid. The housing is thus formed of multiple parts, comprising a pump housing section (38) which comprises the fluid inlets and outlets, a stator housing section (40) which holds the stator and which, together with the pump housing section, delimits a fluid chamber (42) in which the rotor is arranged, and a motor housing section (44) which together with the stator housing section delimits an electronics chamber (46) in which at least the stator is located. In addition, a sealing element (50) is provided, which simultaneously seals the flange surface to the fluid container, separates the fluid chamber and the electronic chamber, and seals the latter from the environment, so that the entire fluid pump is simple and inexpensive to install and is then reliably sealed.
A hydraulic actuating device for a friction clutch and a gear setting element has a power unit for pressure generation by use of an electrically driven pump. Gear setting and clutch actuating sections are hydraulically connected to the power unit. A detenting device with a blocking element is associated with a piston of the clutch setting cylinder, which is operatively connected with the friction clutch and can be hydraulically loaded on opposite sides. The blocking element is resiliently biased into a blocking setting preventing piston movement and is movable by an actuator from the blocking setting into a release setting permitting piston movement. The pump is reversible in order to load the piston on one or the other side for an actuating movement. The control unit coordinates activation of the pump and actuator in order to disengage or engage the friction clutch.
F15B 11/12 - Servomotor systems without provision for follow-up action with only one servomotor providing distinct intermediate positionsServomotor systems without provision for follow-up action with only one servomotor with step-by-step action
A slave cylinder for a vibration-damped hydraulic force transmission system, particularly a hydraulic clutch actuating system for motor vehicles is disclosed, comprising a cylinder housing, a piston received therein to be longitudinally displaceable and a pressure chamber which is bounded by the cylinder housing and the piston and which can be selectably acted on by a pressure medium, by way of a pressure connection provided in the cylinder housing, in order to displace the piston in the cylinder housing. An insert member which is inserted in the pressure chamber and secured in the pressure connection and which is equipped with a device for reducing pressure pulses, the device being constantly open to the pressure medium, is additionally provided. As a result, the vibration-damping measures or means are integrated in the slave cylinder in a particularly economic and space-saving manner.
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F16D 23/12 - Mechanical clutch-actuating mechanisms arranged outside the clutch as such
F15B 15/22 - Other details for accelerating or decelerating the stroke
35.
CENTRAL RELEASE UNIT FOR A HYDRAULIC CLUTCH ACTUATION MEANS
A central release unit (10) for a hydraulic clutch actuation means has a cylinder housing (12) which is produced from a plastic by injection moulding and which has at least one cylinder wall (16) provided, on an outer circumference, with a reinforcement sleeve (40), which cylinder wall delimits an annular pressure chamber (18) radially to the outside, in which annular pressure chamber there is displaceably received an annular piston (20) which can be operatively connected to the clutch and which, in order to release the clutch, can be selectively acted on with a pressure medium via a pressure connection piece (22) which issues into the pressure chamber. The reinforcement sleeve can be fastened to the cylinder wall after the injection moulding of the cylinder housing, for which purpose a snap-action connection (42) is provided on a forward end, which faces away from the pressure connection piece, of the reinforcement sleeve. Said snap-action connection is formed by a radially inwardly bent detent portion (44) of the reinforcement sleeve and by a rib (46) integrally formed on the outer circumference of the cylinder wall. Here, the reinforcement sleeve has a main portion (48) which adjoins the detent portion and which is of conical shape complementary to an outer circumferential surface (50), which is of conical form in the reinforcement region, of the cylinder wall.
An actuating device for hydraulically actuating at least one setting element comprising a pump, which has an electric pump drive, with reversible pumping direction, at least one double-acting piston-cylinder arrangement, which is connected therewith and the piston of which is operatively connected with the setting element, and a hydraulic fluid reservoir from which the hydraulic fluid can be pumped to the piston-cylinder arrangement in order to hydraulically load the piston thereof for a setting element movement depending on pumping direction on one (effective surface 22) or other (effective surface 24) side. In this connection, the piston-cylinder arrangement is functionally associated with a detent device with a blocking element, which is spring-biased into a blocking position preventing setting element movement and is movable by an electrically activatable actuator from the blocking position into a release position permitting setting element movement.
F15B 11/12 - Servomotor systems without provision for follow-up action with only one servomotor providing distinct intermediate positionsServomotor systems without provision for follow-up action with only one servomotor with step-by-step action
A hydraulic actuating device for actuation of clutches in a multi-clutch transmission for motor vehicles is disclosed, comprising a multi-circuit pump having an electric pump drive, at least two pressure circuits hydraulically connected with the pump, and a reservoir for hydraulic fluid, from which the fluid can be conveyed by the pump to the pressure circuits. In this regard, each pressure circuit starting from the pump comprises a non-return valve blocking in the direction of the pump, an electromagnetically actuable proportional throttle valve, by way of which the respective pressure circuit can be the subject of defined hydraulic relief in direction towards the reservoir, and at the outlet side a slave cylinder operatively connected with an associated clutch. The pump drive and the proportional throttle valves are electrically connected with a control unit, which co-ordinates the electrical activation of the pump drive and the proportional throttle valves.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Pressure relieve valves; pressure regulating valves; fluid bleeding and filling units for brake and clutch systems in motor vehicles; automotive belt tighteners; hydraulic controllers for controlling the brake operation in motor vehicles; hydraulic valves; hydraulic pumps; spring brakes for motor vehicles and for industrial machinery; hydraulic actuated accelerators for internal combustion engines; electro-hydraulic actuators for brake and clutch systems and gear shift arrangements in motor vehicles; spring release accumulators for industrial machinery; brake pressure testers; electro-hydraulic dynamic control systems for vehicle chassis; electrical position sensors, electrical proximity sensors; brake systems for vehicles; brake boosters; disc brakes; brake linings; brake discs; brake hoses; brake lines; brake master cylinders; wheel brake cylinders; drum brakes; brake shoes; brake drums; parking brake cables; brake power limiters; built in units consisting of pedals and brake boosters; brake calipers; brake fittings; brake power distributors; clutch systems for vehicles; clutches for motor vehicles and for industrial machinery; clutch master cylinders; clutch slave cylinders; clutch hoses; clutch lines; master cylinders for clutch actuation; automated and non-automated clutch actuators for motor vehicles and for industrial machinery; clutch boosters; built in units for installation in motor vehicles consisting of pedals and actuation cylinders; clutch cables; vibration and pulsation dampeners for vehicle clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo-steering hoses; hydraulic controllers for vehicle steering; hydraulically actuated accelerators for land vehicles; electro hydraulic actuation units; spring release accumulators for land vehicles; automated gear shift arrangements for vehicles; hydraulic gear actuators.
A dual clutch actuation device generates the axial compression force required to compress a first and second set of frictional elements of a dual clutch module. Dual clutch actuation device includes a first and second annular piston. The annular pistons include a first end that is in contact with annular bearing assemblies. The annular bearing assemblies are in contact with actuation levers that are in contact with the first set of frictional elements. The annular pistons are arranged in concentric annular piston slots. Together the piston and annular slots form annular piston chambers. The piston chambers are filled with hydraulic fluid. When the hydraulic fluid is pressurized the pistons slide out of the annular slots and apply a force on the actuation levers which in turn apply an axial compression force on the frictional elements.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Pressure relieve valves; pressure regulating valves; fluid bleeding and filling units for brake and clutch systems in motor vehicles; automotive belt tighteners; hydraulic controllers for controlling the brake operation in motor vehicles; hydraulic valves; hydraulic pumps; spring brakes for motor vehicles and for industrial machinery; hydraulic actuated accelerators for internal combustion engines; electro-hydraulic actuators for brake and clutch systems and gear shift arrangements in motor vehicles; spring release accumulators for industrial machinery; brake pressure testers; electro-hydraulic dynamic control systems for vehicle chassis; electrical position sensors, electrical proximity sensors; brake systems for vehicles; brake boosters; disc brakes; brake linings; brake discs; brake hoses; brake lines; brake master cylinders; wheel brake cylinders; drum brakes; brake shoes; brake drums; parking brake cables; brake power limiters; built in units consisting of pedals and brake boosters; brake calipers; brake fittings; brake power distributors; clutch systems for vehicles; clutches for motor vehicles and for industrial machinery; clutch master cylinders; clutch slave cylinders; clutch hoses; clutch lines; master cylinders for clutch actuation; automated and non-automated clutch actuators for motor vehicles and for industrial machinery; clutch boosters; built in units for installation in motor vehicles consisting of pedals and actuation cylinders; clutch cables; vibration and pulsation dampeners for vehicle clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo-steering hoses; hydraulic controllers for vehicle steering; hydraulically actuated accelerators for land vehicles; electro hydraulic actuation units; spring release accumulators for land vehicles; automated gear shift arrangements for vehicles; hydraulic gear actuators.
41.
FTE AUTOMOTIVE FAG FAHRZEUGHYDRAULIK MADE BY FTE FAG VEHICLE HYDRAULICS MADE BY FTE
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Brake master cylinders; pressure relieve valves; pressure regulating valves; fluid bleeding and filling units for brake and clutch systems in motor vehicles; automotive belt tighteners; hydraulic controllers for controlling the brake operation in motor vehicles; hydraulic valves; hydraulic pumps; spring brakes for motor vehicles and for industrial machinery; hydraulic actuated accelerators for internal combustion engines; electro-hydraulic actuators for brake and clutch systems and gear shift arrangements in motor vehicles; spring release accumulators for industrial machinery; brake pressure testers; electro-hydraulic dynamic control systems for vehicle chassis; electrical position sensors, electrical proximity sensors; brake systems for vehicles; brake boosters; disc brakes; brake linings; brake discs; brake hoses; brake lines; brake master cylinders; wheel brake cylinders; drum brakes; brake shoes; brake drums; parking brake cables; brake power limiters; built in units consisting of pedals and brake boosters; brake calipers; brake fittings; brake power distributors; clutch systems for vehicles; clutches for motor vehicles and for industrial machinery; clutch master cylinders; clutch slave cylinders; clutch hoses; clutch lines; master cylinders for clutch actuation; automated and non- automated clutch actuators for motor vehicles and for industrial machinery; clutch boosters; built in units for installation in motor vehicles consisting of pedals and actuation cylinders; clutch cables; vibration and pulsation dampeners for vehicle clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo- steering hoses; hydraulic controllers for vehicle steering; hydraulically actuated accelerators for land vehicles; electro hydraulic actuation units; spring release accumulators for land vehicles; automated gear shift arrangements for vehicles; hydraulic gear actuators.
(2) Brake master cylinders; pressure relieve valves; pressure regulating valves; fluid bleeding and filling units for brake and clutch systems in motor vehicles; automotive belt tighteners; hydraulic controllers for controlling the brake operation in motor vehicles; hydraulic valves; hydraulic pumps; spring brakes for motor vehicles and for industrial machinery; hydraulic actuated accelerators for internal combustion engines; electro-hydraulic actuators for brake and clutch systems and gear shift arrangements in motor vehicles; spring release accumulators for industrial machinery; brake pressure testers; electro-hydraulic dynamic control systems for vehicle chassis; electrical position sensors, electrical proximity sensors; brake systems for vehicles; brake boosters; disc brakes; brake linings; brake discs; brake hoses; brake lines; brake master cylinders; wheel brake cylinders; drum brakes; brake shoes; brake drums; parking brake cables; brake power limiters; built in units consisting of pedals and brake boosters; brake calipers; brake fittings; brake power distributors; clutch systems for vehicles; clutches for motor vehicles and for industrial machinery; clutch master cylinders; clutch slave cylinders; clutch hoses; clutch lines; master cylinders for clutch actuation; automated and non- automated clutch actuators for motor vehicles and for industrial machinery; clutch boosters; built in units for installation in motor vehicles consisting of pedals and actuation cylinders; clutch cables; vibration and pulsation dampeners for vehicle clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo- steering hoses; hydraulic controllers for vehicle steering; hydraulically actuated accelerators for land vehicles; electro hydraulic actuation units; spring release accumulators for land vehicles; automated gear shift arrangements for vehicles; hydraulic gear actuators.
The invention relates to a device (70) that is always open for the pressure medium for reducing pressure pulsations and that can be switched between a pressure chamber (60) of a slave cylinder (50) and a pressure chamber of a master cylinder of a hydraulic force transmission system, in particular a hydraulic clutch actuator for motor vehicles. Said device comprises an additional line section in the form of a channel (72) having an opening (74) on the slave cylinder side, an opening (76) on the master cylinder side, and a channel length equaling a multiple of the direct distance between the two openings, and a volume receiver (78) that can be elastically deformed under pressure, wherein the channel and the volume receiver are combined into an assembly in a housing (52). The result according to the invention is a device that not only has very good vibration dampening properties, but is also very compact and has a cost-effective design.
A plug-in connection for hydraulic lines and machines, in particular for use on motor vehicles, has a receiving part and a complementary associated plug-in part which is sealed off from the receiving part in the final assembled position. When the plug-in part is inserted into the receiving part, a spring-elastic securing element, which is fitted captively and in a prestressed manner as a spring force storage device on the receiving part in a pre-assembly position, is displaced by the plug-in part relative to the receiving part in such a way that, when the final assembled position is reached, its stored spring force is released by the joining movement itself and the securing element latches in a force-fitting manner between bearing surfaces of the receiving part and of the plug-in part.
F16L 37/088 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
44.
Hydraulic actuating device for actuating a shift rod in particular of a gearbox for motor vehicles
There is disclosed a hydraulic actuating device for actuating a shift rod in particular of a gearbox for motor vehicles, which comprises a cylinder chamber provided in or on a gear housing for accommodating a shift piston which is actively connected to the shift rod and which divides the cylinder chamber into two working chambers which can selectively be acted upon by a pressure medium from a reservoir for the latter, said working chambers being separated from one another by means of a sealing arrangement arranged on the shift piston. The sealing arrangement is designed in a valve-like manner so that, when at least one working chamber is acted upon by pressure medium, it connects said working chamber to an auxiliary chamber which is delimited by the sealing arrangement and which in turn can be connected to the reservoir for the pressure medium. As a result, a cost-effective hydraulic actuating device is provided which is vented in a simple and efficient manner during operation from the working chambers via the auxiliary chamber to the reservoir.
A sealing arrangement for a hydraulic plug-in connection for use in particular in the motor vehicle industry for hydraulic clutch and brake systems is fitted on a hydraulic plug-in connection and has a socket and a plug-in fitting which can be connected thereto. The plug-in fitting is attached to a hydraulic tube. The plug-in fitting has a sleeve and a sealing element fixed thereto, which seals off the plug-in connection both from the hydraulic tube and from the exterior of the socket. The sealing element and the end of the sleeve which receives the sealing element are designed so as to be able to install the sealing arrangement without it being possible for the sealing element to be separated axially from the sleeve when the plug-in connection is released.
F16L 17/00 - Joints with packing adapted to sealing by fluid pressure
46.
Valve arrangement for vibration decoupling, which can be connected between a master cylinder and a slave cylinder of a hydraulic force transmission system
A valve arrangement for vibration decoupling has a housing, in which two valve bodies are accommodated, a first of which is biased by a spring in a reference direction towards a stop integral with the housing and has a through-path for fluid. The other housing is biased by a spring in an opposite direction towards a valve seat on the first valve body and lifts away from the latter in the event of a volume flow in the reference direction, so as to open the through-path for fluid. A further through-path for fluid is provided between the first valve body and the housing, wherein a further valve seat is formed on the stop integral with the housing, towards which further valve seat the first valve body is biased by a spring and lifts away from the valve seat in the event of a volume flow in the opposite direction.
A diaphragm assembly for use with a hydraulic apparatus. The diaphragm assembly includes a cap formed of a rigid material and a diaphragm formed of an elastomeric material. The diaphragm is generally tubular and includes an upper annular collar portion defining an open upper end of the diaphragm and a main body portion extending downwardly from the collar portion, defining a closed lower end of the diaphragm, and including, in cross-section, a plurality of hollow radially extending circumferentially spaced arms. The cap includes an upper disc portion sized to receive the collar portion of the diaphragm and a rib portion extending downwardly from the disc portion and including, in cross-section, a plurality of radially extending circumferentially spaced arms positioned respectively within the arms of the main body portion of the diaphragm whereby the elastomeric arms of the diaphragm provide large expansion and contraction capacity and the rigid arms of the cap preclude undesired distortion or wrinkling of the flexible arms of the diaphragm.
01 - Chemical and biological materials for industrial, scientific and agricultural use
04 - Industrial oils and greases; lubricants; fuels
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Brake fluid; transmission fluids.
(2) Assembly greases and assembly fluids (like lubricants and against corrosion).
(3) Brake master cylinders, pressure relieve valves, pressure regulating valves; brake bleed and fill devices; belt tightening devices; hydraulic control systems, hydraulic valves, hydraulic pumps, spring brakes; hydraulic actuated acceleration devices (except those for land vehicles); electro hydraulic actuation units, hydraulic pressure and volume input devices (except those for land vehicles).
(4) Brake master cylinders, pressure relieve valves, pressure regulating valves; brake bleed and fill devices; belt tightening devices; hydraulic control systems, hydraulic valves, hydraulic pumps, spring brakes; hydraulic actuated acceleration devices (except those for land vehicles); electro hydraulic actuation units, hydraulic pressure and volume input devices (except those for land vehicles).
(5) Brake pressure testing devices; chassis dynamic control systems for vehicles; electrical position and travel sensors.
(6) Brake systems for vehicles, brake boosters, disc brakes, brake linings, brake discs, brake hoses, brake lines, wheel brake cylinders, drum brakes, brake shoes, brake drums, parking brake cables, brake power limiter, built in units consisting of pedals and brake boosters, brake calipers, brake fittings, brake power distributors; clutch systems for vehicles, clutches, clutch master cylinders, clutch slave cylinders, clutch hoses, clutch lines, master cylinders for clutch actuation, automated and not automated clutch actuation systems, clutch boosters, built in units consisting of pedals and actuation cylinders, clutch cables, vibration and pulsation damping devices for hydraulic clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo steering hoses, hydraulic steering systems for vehicles; hydraulic systems for acceleration control of engines for land vehicles; electro hydraulic actuation units, spring-loaded brake cylinders for land vehicles; automated gear shift arrangements for vehicles, hydraulic gear actuators.
(7) Brake systems for vehicles, brake boosters, disc brakes, brake linings, brake discs, brake hoses, brake lines, wheel brake cylinders, drum brakes, brake shoes, brake drums, parking brake cables, brake power limiter, built in units consisting of pedals and brake boosters, brake calipers, brake fittings, brake power distributors; clutch systems for vehicles, clutches, clutch master cylinders, clutch slave cylinders, clutch hoses, clutch lines, master cylinders for clutch actuation, automated and not automated clutch actuation systems, clutch boosters, built in units consisting of pedals and actuation cylinders, clutch cables, vibration and pulsation damping devices for hydraulic clutch actuation systems; anti-lock/skid brake systems (ABS) for vehicles; servo steering hoses, hydraulic steering systems for vehicles; hydraulic systems for acceleration control of engines for land vehicles; electro hydraulic actuation units, spring-loaded brake cylinders for land vehicles; automated gear shift arrangements for vehicles, hydraulic gear actuators.
