Variable-speed power transmission device

Details Variable-speed power transmission device Variable-speed power transmission device

1988-12-27

1991-02-19

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 4704

Patent

active

049940023

ABSTRACT:
The variable-speed power transmission device comprises an input gearing for dividing the power into two fractions having different and variable speeds. The first of these two fractions is transmitted directly to an output gearing, while the second is transmitted to a hydrostatic pump-motor assembly which varies its speed and then to the above mentioned output gearing which recombines it with the first fraction.

REFERENCES:
patent: 3023638 (1962-03-01), Westbury et al.
patent: 3055233 (1962-09-01), Giles
patent: 3470769 (1969-10-01), Livezey
patent: 3592077 (1971-07-01), Polak
patent: 3722324 (1973-03-01), Cordner et al.
patent: 3869939 (1975-03-01), Miyao et al.
patent: 3982448 (1976-09-01), Polak et al.
patent: 4353269 (1982-10-01), Hiersig

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