Motors: expansible chamber type – With motive fluid valve – Relatively movable serial valves
Patent
1976-10-15
1977-08-02
Geoghegan, Edgar W.
Motors: expansible chamber type
With motive fluid valve
Relatively movable serial valves
91461, 137596, F15B 1108
Patent
active
RE0293296
ABSTRACT:
A hydraulic system including a compensator connected between the service ports of the control valve and the load and arranged to restrict the flow in one or both of the service lines so as to maintain a constant pressure difference between the supply pressure and the pressure at the valve service port supplying fluid to the load. The compensator may be connected in both service lines and arranged to restrict the flow equally in each of them. Alternatively a single-sided compensator may be used, and if the load is liable to over-run it must be connected in the service line which is downstream of the load when over-running.
REFERENCES:
patent: 2909195 (1959-10-01), Keyt
patent: 3532119 (1970-10-01), Lind
patent: 3555970 (1971-01-01), Borgeson
patent: 3854382 (1974-12-01), Walters
Geoghegan Edgar W.
Sperry Rand Limited
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