Automatic remote pressure compensation in an open circuit pump

Details Automatic remote pressure compensation in an open circuit pump Automatic remote pressure compensation in an open circuit pump

2005-04-05

2005-04-05

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

C060S452000

Reexamination Certificate

active

06874318

ABSTRACT:
An open circuit system that uses a two-position three-way logic valve that automatically compensates for remote pressure in the system. The system has a pump that sends a pump supply through an orifice to the two-position three-way logic valve. Then depending on the load sense signal, the valve either allows the flow of the pump supply to the compensation relief valve or alternatively, the logic valve prevents the flow from the pump supply. The load sensing signal determines whether the valve will allow flow from the pump supply.

REFERENCES:
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patent: 5077975 (1992-01-01), Kauss
patent: 5085051 (1992-02-01), Hirata
patent: 5638677 (1997-06-01), Hosono et al.
patent: 5743089 (1998-04-01), Tohji
patent: 6033188 (2000-03-01), Baldus et al.
patent: 6282892 (2001-09-01), Arai
patent: 405149276 (1993-06-01), None

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