Motors: expansible chamber type – With motive fluid valve – Expanding chamber inlet controlled by contracting chamber...
Patent
1978-03-15
1980-01-22
Cohen, Irwin C.
Motors: expansible chamber type
With motive fluid valve
Expanding chamber inlet controlled by contracting chamber...
91446, 137596, F15B 13042
Patent
active
041844106
ABSTRACT:
A hydraulic system including a bidirectional hydraulic motor having first and second fluid ports, a pump, a control valve for selectively connecting the pump to (a) the first port and venting the second port and (b) the second port and venting the first port, a modulating valve interposed between the pump and the control valve for varying flow from the pump to the control valve, a pilot for the modulating valve, and a resolver for selecting the lowest pressure at the motor ports and for directing a fluid signal proportional thereto to the pilot to control the modulating valve.
REFERENCES:
patent: 698483 (1902-04-01), Faith et al.
patent: 2778373 (1957-01-01), Jaquith
patent: 3008481 (1961-11-01), Matheson
patent: 3455210 (1969-07-01), Allen
patent: 3693506 (1972-09-01), McMillen et al.
patent: 3951162 (1976-04-01), Wilke
patent: 3984979 (1976-10-01), Budzich
patent: 3998134 (1976-12-01), Budzich
V400 Series Valves (Apparent Publication).
Caterpillar Tractor Co.
Cohen Irwin C.
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