Momentum balance spool

Details Momentum balance spool Momentum balance spool

1979-01-31

1980-09-02

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762569, 251282, 251324, F16K 322

Patent

active

042201780

ABSTRACT:
This invention is a specific method for shaping the shank of a hydraulic control valve spool to alter the momentum exchange from high pressure fluid flowing across the spool so as to balance the various dynamic forces acting on the spool. The shank is shaped to turn the high velocity stream away from the spool at a lesser angle than the entry angle of the stream while utilizing conventional square-edge lands.

REFERENCES:
patent: 2747612 (1956-05-01), Lee
patent: 2765378 (1956-10-01), Perry et al.
patent: 2987050 (1961-06-01), Oppenheimer et al.
patent: 4155535 (1979-05-01), Seamone

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