Vehicle transmission

Details Vehicle transmission Vehicle transmission

2007-02-23

2009-12-29

Le, David D (Department: 3655)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid resistance inhibits relative rotation

C475S031000, C475S089000

Reexamination Certificate

active

07637832

ABSTRACT:
A vehicle transmission has a planet gear rotatably connected to an input shaft. A sun gear and an annulus gear are drivingly connected to the planet gear. A hydraulic pump is drivingly connected to the input shaft. A high-pressure oil line hydraulically communicates between the hydraulic pump and a region defined between the annulus gear, the sun gear, and the planet gear. The pressurized oil is used to change the driving resistance of the planet gear to the annulus gear and to change the driving resistance of the planet gear to sun gear. The annulus gear is connected to the one-way-clutch. An output shaft is connected to the planet gear.

REFERENCES:
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patent: 2588161 (1952-03-01), Probst
patent: 4056986 (1977-11-01), Hobbs
patent: 4489626 (1984-12-01), Lemon
patent: 4938738 (1990-07-01), Fuelberth et al.
patent: 5607369 (1997-03-01), Yang
patent: 5685796 (1997-11-01), Chen et al.
patent: 5967934 (1999-10-01), Ishida et al.
patent: 6652410 (2003-11-01), Gutierrez Vesga
patent: 2006/0025278 (2006-02-01), Antonov et al.

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