Abstract:
A belt-driven conical-pulley transmission having a shaft on the input end and a shaft on the power output end. One of the shafts includes at least one axial bore extending in the longitudinal direction of the shaft, and a transverse bore extending from the axial bore to an outlet on the surface of the shaft. A conical disk pair is carried on the shaft and includes an axially fixed disk and an axially movable disk. The axially movable disk includes internal teeth that engage with external teeth on the shaft, and it overlies the transverse bore outlet over its entire axial travel distance. The transverse bore outlet is positioned in the region of the interengaging teeth.
Abstract:
A conical disk pair for a belt-driven conical-pulley transmission includes an input shaft that is rigidly connected to a fixed disk, a movable disk that is axially movable on the shaft and rotationally fixed, an input component drivable by a drive engine. A torque sensing unit operatively connected with the movable disk includes a first component that is engaged with the input component to transmit torque and that has first shaped surfaces, and a second component that is engaged with the movable disk to transmit torque and that has second shaped surfaces, and rolling bodies positioned between the shaped surfaces. The shaped surfaces are designed in such a way that when a force pushing them together is small or is absent, the rolling elements overrun the shaped surfaces and the transmission of torque between the first component and the second component is interrupted.
Abstract:
A conical disk pair for a belt-driven conical-pulley transmission includes a fixed disk, and a movable disk that is axially movable and rotationally fixed to an input shaft. A torque sensor is associated with the movable disk on a side opposite from the axially fixed disk and includes a sensing piston having axially-directed arms that are circumferentially spaced on a side of the sensing piston that faces away from the movable disk. The arms have outer axially-extending teeth that mesh with inner axial teeth of an input wheel. An inner support ring contacts the arms on an inner side radially opposite the outer teeth of the arms and forces the outer teeth of the arms into meshing engagement with circumferentially-positioned axial teeth of the input wheel.
Abstract:
A transmission with a drive side and an output side conical disk pair. One conical disk pair includes a fixed disk carried by a shaft, a movable disk non-rotatably connected with and axially movable relative to the shaft, and a support ring axially attached to the shaft adjacent a back side of the movable disk. A pressure chamber between the support ring and the back side of the movable disk is supplied with hydraulic pressure medium through a passage in the shaft that opens to the surface of the shaft. An end region of the movable disk when moved along the shaft passes over the opening at a maximum spacing of the movable disk from the fixed disk, and a hydraulic medium connection exists between the passage and the pressure chamber through drainage slots between an inner surface of the movable disk and the peripheral surface of the shaft.
Abstract:
An automatic transmission in the form of a belt-driven conical-pulley transmission having pairs of conical disks on the power input side and the output side. Each conical disk pair includes an axially fixed disk and an axially movable disk. An endless torque-transmitting member passes between and around the pairs of disks to transmit torque therebetween. The axially movable disks are optimized for stiffness by the inclusion of stiffening elements carried by the axially movable disks.
Abstract:
The rotary housing of a hydrokinetic torque converter, which can be utilized in the power train of a motor vehicle--for example, in conjunction with a continuously variable transmission--contains a torque monitoring device which is installed in such a way that it does not take up any, or any appreciable, additional space, especially in the axial direction of the housing. The torque monitoring device can serve to transmit torque between the lockup clutch and the output element of the torque converter. Additional features reside in the provision, configuration and manner of mounting of an auxiliary mass, and in the provision of a device for centering the piston of the lockup clutch in the housing as well as a device for centering the housing on the output element of a prime mover.
Abstract:
A decoupling device for the bearing arrangement of a shaft carried in a housing, in particular a shaft of a belt-driven conical-pulley transmission with a chain that functions as the belt. The decoupling device includes an outer bearing ring configured with a circularly cylindrical outer surface and within which the shaft is mounted, and an inner surface of a housing that encloses the bearing ring outer surface. At least one radial ondular washer is arranged between the bearing ring outer surface and the housing inner surface, which allows a limited relative radial movement between the housing inner surface and the bearing ring outer surface by elastic deformation of the washer.
Abstract:
A decoupling device for the bearing arrangement of a shaft carried in a housing, in particular a shaft of a belt-driven conical-pulley transmission with a chain that functions as the belt. The decoupling device includes an outer bearing ring configured with a circularly cylindrical outer surface and within which the shaft is mounted, and an inner surface of a housing that encloses the bearing ring outer surface. At least one radial ondular washer is arranged between the bearing ring outer surface and the housing inner surface, which allows a limited relative radial movement between the housing inner surface and the bearing ring outer surface by elastic deformation of the washer.
Abstract:
A power-split transmission having several ranges of transmission ratios with continuously variable speed reductions. A drive shaft is connected to two shafts of a variable speed drive unit via a distributor gear whose shafts are in turn connected with the input shafts of a parallel gearbox via respective clutches. Two ranges of ratios only differ from each other through the reduction of the input shaft of the parallel gearbox and their output shafts. An additional embodiment includes a variable speed drive unit, a first planetary drive that is connected with a drive shaft, an input shaft of the variable speed drive unit and a connecting shaft, as well as a second planetary drive that is connected with the connecting shaft of the output shaft of the variable speed drive unit, and an output shaft and an electric motor that is nonrotatably connected with the connecting shaft.
Abstract:
A method and apparatus for limiting the input torque of a belt-driven conical-pulley transmission having a hydromechanical torque sensing device. The torque-sensing device is contained in the transmission power path that includes an input shaft of the transmission and an output shaft. The torque sensing device controls a contact pressure that acts between a conical disk pair of the transmission as a function of the position of an actuator whose position depends upon the torque that acts on the input shaft. The input torque is determined by detecting a torque value that is sensed by the torque-sensing device.