Hydraulic valve test device

Details Hydraulic valve test device Hydraulic valve test device

1990-08-27

1991-09-17

Shoap, Allan N.

Measuring and testing

Blower, pump, and hydraulic equipment

73 37, G01M 1900

Patent

active

050483293

ABSTRACT:
Apparatus for testing a solenoid-actuated, hydraulic valve under actual operating conditions in a closed hydraulic system includes two pressure gauges to monitor valve switching pressure as well as electrical control switches and a test lead to power the valve. A closed hydraulic system includes a reservoir, a pump and a needle valve for controlling pressure. With the hydraulic valve de-energized, flow of the hydraulic fluid is in a first direction, with a first pressure gauge indicating the internal hydraulic pressure and a second hydraulic gauge indicating zero pressure. When the valve is energized, fluid flow direction is reversed in the system and the second hydraulic gauge now measures a pressure, with the first hydraulic gauge indicating zero pressure. Operation of the electrically actuated hydraulic valve can be tested under actual operating conditions prior to installation in a hydraulic control system. The apparatus includes means for permitting various sizes and configurations of hydraulic solenoid valves to be tested.

REFERENCES:
patent: 1958698 (1934-05-01), Fox
patent: 2569299 (1951-09-01), Fegel
patent: 2782637 (1957-02-01), Scheldorf
patent: 2924971 (1960-02-01), Schroeder et al.
patent: 3098382 (1963-07-01), Hoffman et al.
patent: 3270557 (1966-09-01), McClocklin
patent: 3557602 (1971-01-01), Frantz
patent: 4131010 (1978-12-01), Eyres
patent: 4274438 (1981-06-01), La Coste
patent: 4294109 (1981-10-01), Peters et al.
patent: 4368638 (1983-01-01), Groves et al.
patent: 4387591 (1983-06-01), Corzine et al.
patent: 4430886 (1984-02-01), Rood
patent: 4542649 (1985-09-01), Charbonneau et al.
patent: 4566310 (1986-01-01), Cohen et al.
patent: 4587836 (1986-05-01), Hewlett
patent: 4598579 (1986-07-01), Cummings et al.
patent: 4646556 (1987-03-01), Courcoux et al.
patent: 4682491 (1987-07-01), Pickard
patent: 4722221 (1988-02-01), Ferguson
patent: 4854165 (1989-08-01), Jay
patent: 4903529 (1990-02-01), Hodge

Affiliated with

Also associated with

Rating

Hydraulic valve test device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic valve test device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic valve test device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1907960