Control system for pressure operated actuator

Details Control system for pressure operated actuator Control system for pressure operated actuator

1984-12-14

1986-04-15

Michalsky, Gerald A.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

91450, 91461, 91464, 137312, 13762564, F15B 13043

Patent

active

045819785

ABSTRACT:
A control system for a fluid pressure operated actuator includes an arming valve having open and closed positions and a pilot operated selector valve having a neutral position and an extend position. The arming valve is connected to a source of fluid and the selector valve is connected to the arming valve so that two control inputs are necessary to connect the source to an operating chamber of the actuator. A solenoid actuated pilot valve is connected to the source and to a sump and has an on position in which the flow of fluid is unblocked and in an off position in which the flow of fluid is blocked. A pilot passage connects the pilot valve to a pilot chamber of the selector valve and a branch passage connects the pilot passage and the operating chamber of the actuator so that the operating chamber communicates with the sump whenever the pilot valve is off regardless of the position of the selector valve.

REFERENCES:
patent: 2969773 (1961-01-01), Henry
patent: 4157135 (1979-06-01), Devlin et al.

Affiliated with

Also associated with

Rating

Control system for pressure operated actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for pressure operated actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for pressure operated actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1432582