Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – Condition responsive means for modifying working member...
Patent
1982-11-23
1985-12-17
Garrett, Robert E.
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
Condition responsive means for modifying working member...
91517, 91518, 251 63, B62D 506, F15B 1120
Patent
active
045586314
ABSTRACT:
Separate branch conduits extend from a common pump to two fluid power operated systems. One of the branch conduits supplies a relatively low volume of fluid through a pilot flow conduit to a steering control valve in one of the systems to adjust its operating pressure when the steering control valve is displaced from its neutral position. The other branch conduit delivers pressurized fluid directly to the steering control valve on a priority basis. A pressure regulating valve connected between the other branch conduit and the pilot flow conduit isolates the steering system from a higher pressure in the other fluid power operated system and adjusts the operating pressure in the steering system to meet steering load demands.
REFERENCES:
patent: 2363179 (1944-11-01), Harrington et al.
patent: 2892311 (1959-06-01), Van Gerpen
patent: 4005636 (1977-02-01), Dunn
patent: 4070857 (1978-01-01), Wible
Garrett Robert E.
Meyer Richard S.
Zahnradfabrik Friedrichshafen AG
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