Remote controlled, individually pressure compensated valve

Details Remote controlled, individually pressure compensated valve Remote controlled, individually pressure compensated valve

1990-02-08

1991-10-15

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

91433, 13759613, 1376256, 13762561, F15B 13044, F15B 1306

Patent

active

050565613

ABSTRACT:
A remote controlled individually pressure compensated hydraulic valve assembly includes a directional valve having an inlet, a load holding check valve, an outlet passage, at least one outlet or cylinder port, and a tank or drain port. The valve defines a bore within which a spool is moveably disposed. A control device includes hydraulic remote actuators or an electro magnetic device to generate a command signal. The control device compares the command signal to an output of a flow measuring device to position the valve spool so that a desired flow rate at the valve cylinder command signal. The load holding check valve is used as the flow measuring device. The check valve includes a valve element and a spring selected so that the differential pressure across the valve element is proportional to flow rate.

REFERENCES:
patent: 2909195 (1959-10-01), Keyt
patent: 3434390 (1969-03-01), Weiss
patent: 3763746 (1973-10-01), Walters
patent: 3854382 (1974-12-01), Walters et al.
patent: 3874269 (1975-04-01), Walters
patent: 3878765 (1975-04-01), Walters et al.
patent: 3893471 (1975-07-01), Byers, Jr.
patent: 3943957 (1976-03-01), Hayner
patent: 4031813 (1977-06-01), Walters et al.
patent: 4049232 (1977-09-01), Byers, Jr.
patent: 4205592 (1980-06-01), Haussler
patent: 4362084 (1982-12-01), Walters
patent: 4411289 (1983-10-01), Walters
patent: 4598626 (1986-07-01), Walters et al.

Affiliated with

Also associated with

Rating

Remote controlled, individually pressure compensated valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote controlled, individually pressure compensated valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote controlled, individually pressure compensated valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-983807