Invention Grant
- Patent Title: Automatic transmission with improved gear arrangement
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Application No.: US14684969Application Date: 2015-04-13
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Publication No.: US09435405B2Publication Date: 2016-09-06
- Inventor: Edmond M. Etchason
- Applicant: Allison Transmission Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Allison Transmission, Inc.
- Current Assignee: Allison Transmission, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Taft Stettinius & Hollister LLP
- Agent Stephen F. Rost
- Main IPC: F16H3/62
- IPC: F16H3/62 ; F16H37/06 ; F16H3/66 ; F16H59/36 ; F16H3/44

Abstract:
The present disclosure provides an automatic transmission having an input adapted to couple to a torque-generating mechanism and an output coupled to the input. The transmission also includes a first rotating torque-transferring mechanism disposed along a first torque path and coupled to the input. A second rotating torque-transferring mechanism is disposed along a second torque path and is coupled to the input independent of the first torque-transferring mechanism. The transmission includes a plurality of stationary torque-transferring mechanisms, each of which is disposed between the input and output. The transmission includes a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset, where each gearset includes a sun gear, a ring gear, and a carrier assembly. Moreover, the carrier assembly of the third planetary gearset is coupled to the output and the sun gear of the fourth planetary gearset.
Public/Granted literature
- US20150219188A1 Automatic Transmission With Improved Gear Arrangement Public/Granted day:2015-08-06
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