摘要:
An input shaft for a hybrid transmission includes a cylindrical hollow shaft portion having internal and external surfaces. The internal surface defines an internal cavity coaxial with the hollow shaft portion and has a splined portion configured to allow power to be transferred to the hollow shaft portion. The input shaft may further include a freeze plug press-fit in the internal cavity, configured to fluidly seal the inner cavity in embodiments with a cavity extending throughout the input shaft. The splined portion may be a broached spline. A method of manufacturing a hybrid powertrain includes forming a hollow transmission input shaft and press-fitting a plug into it, such that the shaft is internally fluid sealed. The shaft is mated to the transmission which may then be filled with fluid and tested for operability. The shaft may be dry-mated to an engine output member for common rotation therewith.
摘要:
An input shaft for a hybrid transmission includes a cylindrical hollow shaft portion having internal and external surfaces. The internal surface defines an internal cavity coaxial with the hollow shaft portion and has a splined portion configured to allow power to be transferred to the hollow shaft portion. The input shaft may further include a freeze plug press-fit in the internal cavity, configured to fluidly seal the inner cavity in embodiments with a cavity extending throughout the input shaft. The splined portion may be a broached spline. A method of manufacturing a hybrid powertrain includes forming a hollow transmission input shaft and press-fitting a plug into it, such that the shaft is internally fluid sealed. The shaft is mated to the transmission which may then be filled with fluid and tested for operability. The shaft may be dry-mated to an engine output member for common rotation therewith.
摘要:
An assembly in a transmission of a motor vehicle for communicating lubrication oil to a bearing in a planetary gear set includes a planet carrier having a plate with an inner groove in communication with a slot of a bushing, a pinion hole, and a second passage that communicates between the inner groove and the pinion hole. The planet carrier further includes a pinion disposed within the pinion hole and a bearing disposed on the pinion for supporting a planetary gear. A groove is disposed in the pinion and is in communication with the second passage. A third passage extends from the groove into the pinion. A fourth passage extends from the third passage into the pinion along an axis of the pinion. A fifth passage extends from the fourth passage to the outer surface. Pressurized lubrication oil is communicated through the plate and pinion to the bearing.
摘要:
A transmission includes first and second clutch members rotatable about the same axis. An axial groove is formed in one of the members to distribute lubricating fluid to the other member. Preferably, clutch plates with radial grooves extend between the clutch members. Fluid flows from the axial groove through the radial groove and across faces of the clutch plates to separate the plates during disengagement in order to minimize spin losses.
摘要:
A seal for use between the housing of an automatic transmission and the housing (can) of a transmission drive motor is disposed at each end of the drive motor housing. The seal includes a preferably metal annulus having inner and outer elastomeric ribbed seals secured thereto. The annulus, which defines a non-hardened “S” shape in cross section, maintains the shape and strength of the seal and the ribbed inner seal provides a fluid tight seal with the motor housing while the ribbed outer seal provides a fluid tight seal with the transmission housing.
摘要:
A clutch assembly includes a first set of clutch plates and a second set of clutch plates interweaved with the first set of clutch plates. The second set of clutch plates is coupled to a rotatable inner hub, and a stationary backing plate is mounted about the inner hub. The first set of clutch plates is coupled to the backing plate such that the first set of clutch plates and the second set of clutch plates are compressed together with one of the first set or the second set of clutch plates abutting against the backing plate when the clutch assembly is engaged. The clutch assembly further includes a connecting hub coupled to the inner hub, such that the connecting hub supports the stationary backing plate with a bearing disposed between the connecting hub and the backing plate.
摘要:
A motor module is configured for attachment to a transmission housing of a modular transmission assembly. The motor module includes a motor and a support structure. The motor is configured for rotation about a central axis and extends between a first end and a second end. The support structure is operatively connected to the motor such that the support structure at least partially supports the motor. The support structure at least partially extends across the second end of the motor. The support structure is configured for internal attachment to the housing.
摘要:
A clutch assembly includes a first set of clutch plates and a second set of clutch plates interweaved with the first set of clutch plates. The second set of clutch plates is coupled to a rotatable inner hub, and a stationary backing plate is mounted about the inner hub. The first set of clutch plates is coupled to the backing plate such that the first set of clutch plates and the second set of clutch plates are compressed together with one of the first set or the second set of clutch plates abutting against the backing plate when the clutch assembly is engaged. The clutch assembly further includes a connecting hub coupled to the inner hub, such that the connecting hub supports the stationary backing plate with a bearing disposed between the connecting hub and the backing plate.
摘要:
A seal for use between the housing of an automatic transmission and the housing (can) of a transmission drive motor is disposed at each end of the drive motor housing. The seal includes a preferably metal annulus having inner and outer elastomeric ribbed seals secured thereto. The annulus, which defines a non-hardened “S” shape in cross section, maintains the shape and strength of the seal and the ribbed inner seal provides a fluid tight seal with the motor housing while the ribbed outer seal provides a fluid tight seal with the transmission housing.
摘要:
A motor/generator for a hybrid transmission includes a bearing support configured for attachment to the hybrid transmission. A stator can is bonded directly to the bearing support, possibly by welding. The motor/generator may further include a stator press-fit into said stator can. A method of assembling a hybrid transmission includes welding a stator can to a bearing support, forming a motor/generator housing. A stator is then pressed into the housing. A substantially-complete motor/generator is assembled by installing a rotor, a rotor hub, and a ball bearing into the housing, which are held in the motor/generator housing with a snap ring. The method may include rigidly attaching the substantially-complete motor/generator to a main case. The method may further include testing the substantially-complete motor/generator prior to transporting the motor/generator to a final place of assembly and rigidly attaching the motor/generator to the transmission main case.