Invention Grant
- Patent Title: Pump cover inlet porting and seal for hybrid transmission
- Patent Title (中): 泵盖入口和密封用于混合传动
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Application No.: US12185850Application Date: 2008-08-05
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Publication No.: US08409041B2Publication Date: 2013-04-02
- Inventor: Eric S. Tryon
- Applicant: Eric S. Tryon
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: F16H31/00
- IPC: F16H31/00

Abstract:
A hybrid transmission is provided, including a transmission housing with an input cover attached to a main housing portion, and a hydraulic fluid reservoir in fluid communication with and attached to the transmission housing. The transmission also includes an input shaft in driving communication with an engine. A pump cover is attached to the input housing to define a pump pocket therebetween. A torque transmitting assembly is secured to the pump cover. The torque transmitting assembly includes a piston housing member that is coaxial with and longitudinally spaced from the pump cover to define an inlet passage therebetween. The inlet passage is configured to communicate the hydraulic fluid reservoir with the transmission housing, and is oriented at least partially radially adjacent to the pump pocket. A gasket member is disposed between the pump cover and piston housing member, and configured for fluidly sealing the same.
Public/Granted literature
- US20090250886A1 Pump Cover Inlet Porting and Seal for Hybrid Transmission Public/Granted day:2009-10-08
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