Fluid handling – Systems – Multi-way valve unit
Patent
1975-06-30
1978-01-03
Cohan, Alan
Fluid handling
Systems
Multi-way valve unit
251 612, F15B 13042
Patent
active
040661016
ABSTRACT:
A multiple way valve has a main valve chamber and a control valve chamber. Within the main valve chamber is an axially movable valve body. The control valve chamber includes a mechanically operable control valve body. A pressure line opens from a pressure medium source into the main valve chamber and also a working line which is closed with respect to the pressure line in extreme position of the main valve body and connected to it in the other extreme position. A partition separates the control valve chamber from the main valve chamber, the partition being movable in an axial direction. One end face of the main valve body facing away from the partition is connected to the pressure line in all positions of the main valve body and the second end of the main valve body is firmly attached to the partition. There is a connecting line which is open at all times with respect to the first end face of the main valve body and opens into the control valve chamber. A control exhaust line is connected to the control valve chamber and the control valve body closes the control exhaust line in its first extreme position with the connecting line open and closes the connecting line in its second extreme position with the control exhaust line open. The surface of the movable partition which is exposed to the pressure medium from the control valve chamber is greater than the surface of the main valve body which can be acted on in the reverse direction. Thus, when the control valve body is moved from its first extreme position to its second extreme position, the main valve body shifts over in a snap-action manner.
REFERENCES:
patent: 3181566 (1965-05-01), Volkmann
patent: 3212446 (1965-10-01), Golden et al.
patent: 3228422 (1966-01-01), Bade
patent: 3353453 (1967-11-01), Ramspeck
patent: 3552270 (1971-01-01), Lange
patent: 3638534 (1972-02-01), Ramspeck
patent: 3653299 (1972-04-01), Howard
patent: 3768515 (1973-10-01), Trusselle
patent: 3902526 (1975-09-01), Brake et al.
patent: 3913620 (1975-10-01), Pauliukonis
patent: 3916952 (1975-11-01), Pauliukonis
Cohan Alan
Michalsky Gerald A.
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