Hydraulic torque amplifier, particularly for steering devices

Details Hydraulic torque amplifier, particularly for steering devices Hydraulic torque amplifier, particularly for steering devices

1980-08-18

1983-05-03

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

91375R, 180149, F04B 910, F15B 910, F04C 210

Patent

active

043819052

ABSTRACT:
The invention relates to a hydraulic torque amplifier for steering devices or the like. The amplifier has a planetary type piston motor having a rotatable externally toothed inner gear and an orbitable, nonrotatable internally toothed outer gear. The amplifier has input and output shafts rotatably journaled in the amplifier housing in coaxial and axially spaced relation. The valving arrangement includes inner and outer sleeves with the input shaft being fixedly connected to the inner sleeve and the output shaft being fixedly connected to both the inner gear and the outer sleeve.

REFERENCES:
patent: Re25291 (1962-12-01), Charlson
patent: 3131602 (1964-05-01), Ford
patent: 3801239 (1974-04-01), Larson
patent: 4169515 (1979-10-01), Presley

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