Abstract: A coupling assembly for use in transmitting force includes a housing which at least partially encloses a rotatable disc. The housing has a plate portion with an annular force transmitting surface which is engagable with the rotatable disc. A cooling fluid channel is at least partially defined by a side of the plate portion opposite from the force transmitting surface. A plurality of indentations disposed in an inner surface 60b of the force transmitting surface of the plate portion create turbulent and secondary flow in a path of flow of cooling fluid through the cooling fluid channel. A cooling fluid inlet includes a passage having a portion with a large cross section connected in fluid communication with a radially outer portion of the cooling fluid channel. A portion of the inlet passage having a small cross section is connected in fluid communication with a radially inner portion of the cooling fluid channel. Optional ribs extend across the radially inner and outer portions of the cooling fluid channel.

Abstract: One way clutch has an inner ring, an outer ring and torque transmission members between the inner ring and the outer ring. Each torque transmission member can shift between a torque transmission position and a non torque transmission position. The one way clutch further has biasing members that bias the torque transmission members respectively toward the torque transmission positions, and a retainer that retains the torque transmission members and the biasing members. The retainer includes first and second mount portions that retain the torque transmission members and the biasing members corresponding thereto. Each of the first and second mount portions has a securing portion that secures one end of the biasing member, and the torque transmission member is pressed by the other end of the biasing member.

Abstract: A method for operating a powertrain through selective application of a hydraulically actuated clutch includes monitoring a state of a pressure control switch operatively coupled the clutch, monitoring a hydraulic line pressure utilized by the pressure control switch to fill the clutch, determining a hydraulic flow rate flowing to the clutch based upon the state of the pressure control switch and the hydraulic line pressure, tracking a clutch fill volume of the clutch based upon the hydraulic flow rate, and controlling operation of the clutch based upon the clutch fill volume.

Abstract: A disc carrier of a friction clutch is described and illustrated, and in some embodiments has a subassembly of a modular structure which is composed of interconnectable component parts. The component parts can include a holding ring, at least one web, and a base plate.

Abstract: A vehicle driving apparatus includes a rotating electrical machine and an engagement device, which are disposed on a power transmission path linking an input member drive-coupled to an internal combustion engine and an output member drive-coupled to a wheel. The engagement device includes an engagement input coupled to the input member, an engagement output that forms a pair with the engagement input and is coupled to the rotating electrical machine, a friction member disposed between the engagement input and the engagement output, and a pressing member that presses the friction member in a pressing direction. An oil pressure chamber is formed between the pressing member and either the engagement input or the engagement output. A biasing spring biases the pressing member in the pressing direction when no oil pressure is supplied to the oil pressure chamber and is disposed on an exterior of the oil pressure chamber.

Abstract: A force transfer device, comprising a hub, disposed in the drive train of a motor vehicle for torque transfer between a drive unit and a transmission, in particular a turbine shell hub of a turbine shell of a hydrodynamic machine, coupled to a damper hub with a vibration damper device connected in between. The vibration damping device is provided with a mechanical stop device, which becomes effective, as soon as a maximum design load of the vibration damping device is exceeded, and the mechanical stop device is disposed between the turbine shell hub and the damper hub.

Abstract: A bimetal fan clutch may include a disc-shaped rotor that is affixed to a shaft coupled with an engine between a lower case fixed to the shaft via a bearing and an upper case covering the lower case and having a space, an oil storage that is attached to one face of the rotor to be housed in the space and has a projection inserted into a central hollow part formed in the upper case, a bimetal oil valve that is provided inside the oil storage, wherein the bimetal oil valve changes its shape in response to heat transferred through a bimetal assembly mounted through the projection and thereby opens/closes a through-hole formed in the oil storage, and a return line that is formed in the lower case so that oil ejected to the space through the through-hole is collected into the oil storage.

Abstract: A round recliner for vehicle seat is disclosed having a holder; a sector gear coupled to the holder to be rotatable with respect to the holder; N lock gears respectively having outer teeth and moving between a locking position where the outer teeth interlock with the inner teeth and an unlocking position where the outer teeth retreat from the inner teeth; and an operating means for moving the N lock gears to the locking or unlocking positions. The holder has N lock gear guides which guide each lock gear to slide between the locking and unlocking positions, an N?1 lock gear guides to make its outer teeth fully interlock with the inner teeth of the sector gear, and the remaining 1 lock gear guide has its guide round surface to make only one side tooth surfaces of its outer teeth interlock with the inner teeth of the sector gear.

Abstract: A seal retainer device for fixing the position of at least one sealing device, comprising at least one contact surface for fixing the position of a seal in the radial and/or axial direction, a first functional surface for linking to a component, and at least one second functional surface to form an axial or radial bearing sliding surface. In addition, the invention relates to a power transmission unit having a seal retainer that holds seals for sealing off two pressure chambers.

Abstract: A torque transmitting apparatus includes a cover portion generally defined by a first axis. The cover portion includes a plurality of adjustment apertures. The apparatus also includes a flywheel coupled to the cover portion for rotation therewith, wherein the flywheel is restrained from axial movement relative to the cover portion. The apparatus also includes a pressure plate coupled to the cover portion for rotation therewith. The pressure plate is axially moveable relative to the cover portion. The apparatus also includes a clutch disk at least partially interposed between the flywheel and the pressure plate. The apparatus also includes a plurality of first members extending between the pressure plate and the cover. Each first member exerts a biasing outward radial force on the adjustment aperture to resist axial movement therebetween. The apparatus also includes a plurality of biasing members. At least one biasing member is interposed between one of the first members and the flywheel.

Abstract: A freewheel, which has an inner ring, an outer ring that can be rotated relative to the inner ring in at least one rotational direction and which is disposed radially around the inner ring, a plurality of rolling bodies, which are disposed between the inner ring and the outer ring, and at least one rolling body suspension for suspending the rolling bodies in the direction of the inner ring. The rolling body suspension has a spring which overall has a circular shape and is adapted such that the rolling bodies are loaded radially inward in the radial direction of the freewheel. In a plane that is formed by the longitudinal direction and the radial direction of the freewheel, the spring has a substantially rectangular profile.

Abstract: The invention relates to a synchronizing ring for a synchronization device of a gear changing transmission, wherein a guiding element extends in a region between an outer surface of the means providing security against rotation and the outer installation surface in the circumferential direction (U) with respect to a distance from the axial synchronizing ring axis.

Abstract: A parking device includes a drive cam disposed around an MG shaft that transmits a drive force of a second motor generator by being coupled with a parking gear, a driven cam disposed around an MG shaft so as to be able to rotate integrally with the MG shaft and capable of moving in the axial direction of the MG shaft by a relative rotation generated between the driven cam and the drive cam when the parking gear is locked by a pilot clutch, and a dog type brake that engages the parking gear with the MG shaft and a transaxle case accommodating the parking device by the movement of the driven cam. With the configuration, a shock load at the time of operation can be suppressed and the parking device can be reduced in size.

Abstract: A shift control device for a vehicle transmission is provided in which drive means for making a shift drum pivot is connected to the shift drum, wherein the drive means (112) includes a power source (113) disposed on at one end, in the axial direction, of the shift drum (104), and a transmission shaft (117) to which power from the power source (113) is transmitted at the one end, in the axial direction, of the shift drum (104), power from the transmission shaft (117) being transmitted to the other end, in the axial direction, of the shift drum (104). This enables an internal combustion engine to be made compact while avoiding a concentrated disposition of the drive means on one side, in the axial direction, of the shift drum.

Abstract: Differential apparatus capable of guiding and supplying a sufficient amount of lubricant oil to the lubrication elements accommodated in the differential apparatus (6). The differential apparatus comprises a differential case (11), a differential carrier (21), a carrier cover (22), a differential mechanism housed in the differential case, and a ring gear (14) secured to the ring differential case. The differential case has a through bore (35,36,42) radially formed in differential case to have the inner space of the differential case held in communication with the outer space of the differential case. The differential carrier has a lubricant oil reservoir portion (28) positioned below the differential case to reserve the lubricant oil therein.

Abstract: In a clutch which is impelled by an actuator into the closed position and which automatically moves into the open position by an opening spring, the movement of the clutch into the open position is monitored and any malfunction is displayed.

Abstract: A powered ratchet drive for a ratchet wrench includes a pair of elongate pawls for driving an output member of the wrench. Each pawl may have a lower portion pivotally attached to a rocker and an upper portion comprising teeth for engagement with teeth of the output member to turn the output member. The upper portion of the pawl extends outward at an angle with respect to the lower portion. The ratchet may include a compression spring secured inside a cavity of each pawl for biasing the pawl into engagement with the output member. The ratchet also includes a reversing switch mechanism for selectively configuring the ratchet in a forward-driving configuration and in a reverse-driving configuration. The switch mechanism includes a cam disposed between the pawls. The cam has a groove for receiving one of the pawls during operation depending on the configuration of the ratchet.

Abstract: A clutch apparatus includes a clutch pack having a plurality of friction disks. The clutch pack will selectively transfer torque from a torque supplying member to a first torque receiving member. The apparatus also includes a first piston chamber positioned radially outward of the clutch pack. The first piston chamber is operably connected to the clutch pack for exerting a compressive force on at least a portion of the clutch pack as a first fluid is pressurized into the first piston chamber.

Abstract: A torsional vibration damper arrangement including a torsional vibration damper with a primary side and a secondary side rotatable with respect to the primary side around an axis of rotation against the action of a damper spring arrangement. One side of the primary side and secondary side includes two cover disk elements and a central disk element arranged between the cover disk elements. The cover disk elements are connected to one another by first connection elements radially inside the damper spring arrangement so as to be fixed axially and so as to transmit torque. The cover disk elements are connected to one another by second connection elements in such a way that they are prevented from moving axially away from one another. No torque can be transmitted between the cover disk elements by the second connection elements.

Abstract: A drive axle housing system may minimize churning of splash and spray oil within a drive axle housing. The drive axle housing system includes apparatus for incorporation into the axle, the apparatus including an oil churning reduction member that may be affixed to the interior walls of the axle housing. The oil churning reduction member includes interior surfaces adapted to closely align with interior moving gear components of the axle to minimize efficiency losses due to oil movement. The system may also incorporate an annular element, affixed to the axle housing and closely aligned with the backside of a ring gear component of the differential axle. The combined use of the member and the element may substantially reduce torque losses attributable to excessive churning of oil.