Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Second path activated in response to pressure or flow in...
Patent
1978-06-05
1981-05-12
Cohen, Irwin C.
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Second path activated in response to pressure or flow in...
60384, 91420, 13763015, F15B 13042
Patent
active
042664640
ABSTRACT:
The invention relates to hydraulic control apparatus for a servomotor of the type utilized for vehicle steering systems. Such apparatus has a control circuit controlled by a manually operated device such as a steering wheel and a power circuit connected between the servomotor and a power source such as a hydraulic pump. The power circuit includes resetting apparatus for throttling the return flow branch in a manner so that forces applied to the servomotor in the same direction as actuation are absorbed with a minimum of reactionary movement by the valves on the return flow side of the apparatus.
REFERENCES:
patent: 3416406 (1968-12-01), McCreery
patent: 3623509 (1971-11-01), Sesseler et al.
patent: 3625007 (1971-12-01), Herndon, Jr.
patent: 3817154 (1974-06-01), Martin
patent: 3906991 (1975-09-01), Haussler
patent: 4006663 (1977-02-01), Baatrup et al.
Baatrup Johannes V.
Christensen Thorkild
Christiansen Tage
Thomsen Svend E.
Cohen Irwin C.
Danfoss A/S
Easton Wayne B.
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