Directional control valve

Details Directional control valve Directional control valve

1979-01-09

1981-03-10

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

91463, 13762564, 13762568, F15B 13043

Patent

active

042547989

ABSTRACT:
The direction control valve comprises a housing having a stepped central boring for accommodating a sliding control piston having a section of larger diameter and a section of smaller diameter. The housing defines two load ports each communicating with an assigned boring section through an annular gap. One load port is directly connectable through its annular gap with a pressure releasing or venting port and the other load port is connectable to the same venting port through a central passage in the piston.

REFERENCES:
patent: 2757642 (1956-08-01), Raney
patent: 2912007 (1959-11-01), Johnson
patent: 3318333 (1967-05-01), McCollum et al.
patent: 3574311 (1971-04-01), Fairbanks
patent: 3661182 (1972-05-01), Loveless

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