Hydromechanically infinitely variable transmission, with power s

Details Hydromechanically infinitely variable transmission, with power s Hydromechanically infinitely variable transmission, with power s

1992-09-24

1993-12-07

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid pump and motor in one of plural paths to or from...

F16H 3900

Patent

active

052679110

ABSTRACT:
A hydromechanically infinitely variable transmission with power splitting for motor vehicles with at least five gearshift ranges. The transmission can be infinitely varied by means of a hydrostatic transmission. A hydrostat transmission, a multi-shaft summation planetary transmission and at least two downstream planetary transmission units constitute basic components which can be mutually coupled in transmission combinations of various configurations. The power summarized in the summarization planetary transmission is transmitted alternately through an intermediate shaft or coupling shaft and clutches to a planetary transmission unit. In at least one gearshift range, a shaft of the summarization planetary transmission is connected directly via a clutch to the output shaft. Depending on the embodiment, one to three reverse gear ranges can be incorporated in the transmission.

REFERENCES:
patent: 4164156 (1979-08-01), Reed et al.
patent: 4184385 (1980-01-01), Maeda
patent: 4232568 (1980-11-01), Maeda
patent: 4291592 (1981-09-01), Meyerle et al.
patent: 4304151 (1981-12-01), Meyerle et al.
patent: 4341131 (1982-07-01), Pellman
patent: 4683776 (1987-08-01), Klemen
patent: 4754664 (1988-07-01), Dick

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