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US 7,458,913 B2Granted
Power transmission
AssigneeGM Global Technology Operations LLC
InventorsRaymond J. Haka, Joel M. Maguire
Life of this patent
Estimating the term…
Abstract
A power transmission, for a vehicle, provides seven forward speeds and a reverse speed. The transmission has three planetary gearsets and has one sun gear member, which is held stationary for six of forward speeds and the reverse speed. The sun gear member is connected through a shaft to a torque-transmitting mechanism, which is disposed forward of an oil distribution snout and rearward of the vehicle engine.
Claims8
A power transmission comprising:
- a sun gear member selectively held stationary during at least six forward speeds and one reverse speed;
- a shaft member drivingly secured with said sun gear member and extending forwardly within said transmission through an oil snout and a control mechanism;
- and
- a selectively engageable torque-transmitting mechanism disposed within a space formed by a transmission bell housing and disposed forward of the oil snout, a hydraulic pump mechanism, said control mechanism and within a rotating housing in said transmission at a location generally occupied by a conventional torque converter mechanism and being selectively engageable to hold said sun gear member stationary.
1 more element
Dependencies are inferred from the claim text.