Invention Grant
- Patent Title: Multiple speed transmission with a pump assisted launch device
- Patent Title (中): 具有泵辅助发射装置的多速变速器
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Application No.: US13349303Application Date: 2012-01-12
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Publication No.: US08808135B2Publication Date: 2014-08-19
- Inventor: Hamid Vahabzadeh , James B. Borgerson , James M. Hart , Scott H. Wittkopp
- Applicant: Hamid Vahabzadeh , James B. Borgerson , James M. Hart , Scott H. Wittkopp
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, LLC
- Current Assignee: GM Global Technology Operations, LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H3/66
- IPC: F16H3/66 ; F16H47/04

Abstract:
A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a launch device that includes a planetary gear set connected with a pump or a pump having a rotatable housing connected to an engine and a rotor connected to the transmission input member. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes.
Public/Granted literature
- US20120178564A1 MULTIPLE SPEED TRANSMISSION WITH A PUMP ASSISTED LAUNCH DEVICE Public/Granted day:2012-07-12
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