Pressure compensated flow amplifying poppet valve

Details Pressure compensated flow amplifying poppet valve Pressure compensated flow amplifying poppet valve

1991-09-03

1992-08-11

Michalsky, Gerald A.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

13759614, 251 44, F16K 31363

Patent

active

051372541

ABSTRACT:
Flow amplifying poppet valves are useful in hydraulic circuits requiring low leakage when the circuit is in a load holding condition. Pressure compensation of the known flow amplifying poppet valves has not been totally successful and thus, the output flow varies somewhat with changing pressure drops across the poppet valve. The subject pressure compensated flow amplifying poppet valve utilizes a pressure compensating valve and a compensating orifice disposed in a compensating flow path disposed in parallel with a valve device for controllably regulating fluid flow through a flow regulating passage. Fluid flow through the compensating flow path is restricted by the orifice to a flow rate substantially equal to the amount of fluid that can flow through a flow control slot in a valve element at a closed position of the valve element. The addition of the compensating flow path and the compensating valve greatly increases the pressure compensating capability of the pressure compensated flow amplifying poppet valve so that the fluid flow through the poppet valve remains substantially constant for a given position of the valve means regardless of changing load conditions.

REFERENCES:
patent: 3175800 (1965-03-01), Donner et al.
patent: 4535809 (1985-08-01), Andersson
patent: 4593715 (1986-06-01), Stich et al.
patent: 4846216 (1989-07-01), Raymond
patent: 4945723 (1990-08-01), Izumi et al.
patent: 5005358 (1991-04-01), Hirata et al.

Affiliated with

Also associated with

Rating

Pressure compensated flow amplifying poppet 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 Pressure compensated flow amplifying poppet valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure compensated flow amplifying poppet valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342056