Pressure medium servo motor, especially for servo steering syste

Details Pressure medium servo motor, especially for servo steering syste Pressure medium servo motor, especially for servo steering syste

1976-01-16

1978-03-28

Schwadron, Martin P.

Motors: expansible chamber type

Differential

Motive fluid constantly applied to one working member face

91165, 92 6R, 92108, 92136, F15B 1517

Patent

active

040808718

ABSTRACT:
A pressure medium servo-motor, especially for servo-steering systems, in which a working piston operating in a working cylinder is provided with a piston pressure surface actuatable by the pressure in one working pressure chamber of the working cylinder for producing a servo-force directed in the sense of the relative movement of the working piston with respect to the working cylinder; the piston pressure surface of the working piston is thereby reduced with respect to the reference value fulfilling the equilibrium condition of the piston pressure forces in the neutral position of the working piston, by a reducing piston which includes a pressure disengaging surface actuatable by the pressure in the working pressure chamber and a relief pressure surface actuatable by the pressure in a relief pressure chamber.

REFERENCES:
patent: 1958511 (1934-05-01), Dodge
patent: 2434296 (1948-01-01), Swanson
patent: 2858805 (1958-11-01), Lincoln
patent: 3153522 (1964-10-01), Piper
patent: 3312146 (1967-04-01), Quere
patent: 3511133 (1970-05-01), Day
patent: 3677005 (1972-07-01), Estlick
patent: 3687014 (1972-08-01), Forster
patent: 3719124 (1973-03-01), Katz et al.
patent: 3908373 (1975-09-01), Peterson
patent: 3972266 (1976-08-01), Strauff

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