US 7,458,913 B2
Power transmission
Raymond J. Haka, Brighton, Mich. (US); and Joel M. Maguire, Northville, Mich. (US)
Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US)
Filed on Jun. 30, 2005, as Appl. No. 11/172,507.
Prior Publication US 2007/0004546 A1, Jan. 04, 2007
Int. Cl. F16H 3/44 (2006.01)
U.S. Cl. 475—288  [475/146; 475/284] 8 Claims
OG exemplary drawing
 
1. 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.