Control valve device for the control of a consumer

Details Control valve device for the control of a consumer Control valve device for the control of a consumer

2006-12-11

2009-06-02

Leslie, Michael (Department: 3745)

Motors: expansible chamber type

With motive fluid valve

Inlet fluid supplemented by controlled fluid pressurized in...

Reexamination Certificate

active

07540231

ABSTRACT:
A control valve device (1) for the control of a dual-action consumer (2) has a control valve (3) that controls the connection of a pressure fluid line (6a) that forms the admission side of the consumer (2) with a pump and an additional pressure fluid line (6b) that forms the return side of the consumer (2) with a reservoir. A regeneration function allows the return side of the consumer (2) to be connected with the admission side of the consumer (2). The regeneration function has a short circuit device (10) located between the consumer (2) and the control valve (3). For the regeneration function, the connection of the additional pressure fluid line (6b) that forms the return side of the consumer (2) with the reservoir can be blocked by a shutoff valve device (20) located between the consumer (2) and the control valve (3).

REFERENCES:
patent: 4152970 (1979-05-01), Hall et al.
patent: 4836088 (1989-06-01), Seabaugh
patent: 5826486 (1998-10-01), Shimada
patent: 198 44 669 (2000-03-01), None

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