Hydraulic valve arrangement

Details Hydraulic valve arrangement Hydraulic valve arrangement

2005-12-06

2005-12-06

Michalsky, Gerald A. (Department: 3753)

Fluid handling

Systems

Supply and exhaust

C091S446000

Reexamination Certificate

active

06971407

ABSTRACT:
The invention concerns a hydraulic valve arrangement with a supply connection arrangement, which has a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, which has two working connections (A, B), which can be connected with a consumer, a directional valve and a compensation valve arranged between the directional valve and the supply connection arrangement, the pressure outlet of the compensation valve being connected with a pressure inlet of the directional valve. It is endeavoured to avoid dangerous situations, which occur because of uncontrolled pressures. For this purpose, it is ensured that the compensation valve has a relief outlet, which can be connected with the pressure outlet.

REFERENCES:
patent: 4180098 (1979-12-01), Budzich
patent: 4343152 (1982-08-01), Habiger
patent: 5829481 (1998-11-01), Tajima et al.
patent: 6220289 (2001-04-01), Zenker et al.
patent: 41 19 297 (1992-12-01), None
patent: 4405143 (1995-08-01), None
patent: 0170815 (1986-02-01), None
patent: 2 745 337 (1997-08-01), None
patent: 56-20807 (1981-02-01), None

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