Hydraulic flow priority system

Details Hydraulic flow priority system Hydraulic flow priority system

1994-12-08

1996-02-13

Look, Edward K.

Power plants

Pressure fluid source and motor

Methods of operation

60484, 91461, 91459, F16D 3100, F15B 1108

Patent

active

054903840

ABSTRACT:
A hydraulic system for a construction machine includes a pump for delivering fluid under pressure from a fluid reservoir to at least first and second main valves. First and second input devices are included for producing first and second control signals that are indicative of a desired operation of the hydraulic system. A controller responsive to at least the first and second control signals is provided and produces a compensating signal in response to the first and second control signals. The second main valve is operated in response to both the second control signal and the compensating signal.

REFERENCES:
patent: 4475333 (1984-10-01), Tordenmalm
patent: 4516469 (1985-05-01), Sato et al.
patent: 4688380 (1987-08-01), Reinhardt et al.
patent: 4718329 (1988-01-01), Nakajima et al.
patent: 4768339 (1988-05-01), Aoyagi et al.
patent: 4955283 (1990-09-01), Hidaka et al.

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