Valve device

Details Valve device Valve device

2006-12-11

2009-11-17

Lopez, F. Daniel (Department: 3745)

Motors: expansible chamber type

With motive fluid valve

Inlet fluid supplemented by controlled fluid pressurized in...

C091S447000

Reexamination Certificate

active

07617760

ABSTRACT:
A control valve device (1) for the control of a consumer (2), in particular of a dual-action consumer, includes a control valve (3) that controls the connection of an admission side of the consumer (2) with a pump and a return side of the consumer (2) with a reservoir. The control valve device (1) has a regeneration function by means of which the return side of the consumer (2) can 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) and provides a connection of the return side of the consumer (2) with the admission side of the consumer (2). For the regeneration function, the connection of the return side of the consumer (2) with the reservoir can be shut off by the control valve (3).

REFERENCES:
patent: 3477347 (1969-11-01), Rice
patent: 3630121 (1971-12-01), Landaeus et al.
patent: 5065664 (1991-11-01), Ohta et al.
patent: 5996465 (1999-12-01), Morikawa et al.
patent: 198 44 669 (2000-03-01), None

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