Hydraulic valve arrangement

Details Hydraulic valve arrangement Hydraulic valve arrangement

2006-06-27

2006-06-27

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Reciprocating valve

Push or pull operator

C251S324000, C251S129080

Reexamination Certificate

active

07066446

ABSTRACT:
A hydraulic valve arrangement with a first and a second working connection, both working connections being connectable with a hydraulic consumer, a supply connection having a pressure connection and a tank connection, a first valve, which closes the pressure connection or connects it in a controlled manner with the first working connection or the second working connection, a second valve, which closes the tank connection or connects it in a controlled manner with the first or the second working connection, and a control device, which controls the first valve and the second valve. It is endeavored to enable a simple manner of exact controlling the consumer. For this purpose, at least one valve is provided with an opening degree sensor, which is connected with the control device, the control device controlling the valve arrangement in dependence of the signal from the opening degree sensor and a specified signal.

REFERENCES:
patent: 3170376 (1965-02-01), Cudnohufsky
patent: 4065922 (1978-01-01), Ott et al.
patent: 4194534 (1980-03-01), Lawrence et al.
patent: 5568759 (1996-10-01), Aardema
patent: 6477026 (2002-11-01), Lemke
patent: 6837045 (2005-01-01), Heusser
patent: 2003/0078697 (2003-04-01), Kockemann
patent: 2005/0098755 (2005-05-01), Kussel
patent: 3810111 (1989-10-01), None
patent: 4314801 (1994-11-01), None
patent: 0 809 737 (1999-06-01), None

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