Infinitely variable ratio transmission

Details Infinitely variable ratio transmission Infinitely variable ratio transmission

1999-10-25

2000-10-24

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid resistance inhibits relative rotation

475108, F16H 4704

Patent

active

061359092

ABSTRACT:
In a broad aspect, the invention is an infinitely variable ratio transmission that may include an input shaft connected to a carrier plate. The input shaft is disposed within the bore of a sun gear. At least one planetary gear is rotatably attached to the carrier plate. A ring gear is connected to an output shaft. The at least one planetary gear is disposed between and meshed with the ring gear and the sun gear. A pump having a first and second gear enclosed within a housing is disposed about the input shaft. The second gear is attached to the sun gear. A pump oil pickup passageway connects an inlet port on the pump to a pump oil reservoir. A pump oil return passageway connects an outlet port of the pump to the reservoir. A control valve is provided to regulate fluid flow through the pump. Various clutch arrangements are disclosed to provide a reverse mode.

REFERENCES:
patent: 1689537 (1928-10-01), Sorensen
patent: 2960890 (1960-11-01), Davis
patent: 3447400 (1969-06-01), Serniuk
patent: 3505908 (1970-04-01), Herrmann
patent: 5704459 (1998-01-01), Antonov
patent: 5971880 (1999-10-01), Keiser

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