F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/90, 137/92
F15B 13/02 (2006.01) F15B 13/04 (2006.01) F16K 11/10 (2006.01) F16K 39/02 (2006.01)
Patent
CA 1192115
ABSTRACT OF THE DISCLOSURE: The hydraulic control-unit consists of a housing, a control slide-valve displaceable in the bore of the housing, and a control-ring. Axial displacement of the said control slide- valve makes it possible to connect together, or to disconnect, various connecting lines, depending upon the position of the valve. Located in an annular chamber, formed between a section of the housing-bore and the control-valve slide, is a control- ring arranged coaxially with the said valve and guided dis- placeably thereupon. Valve-seats are spaced axially from each other, both in the housing-bore and on the control slide-valve. The said control-ring comprises inner mating surfaces and outer mating surfaces co-operating with the said valve-seats. Provided between the two valve-seats, in the control. slide- valve, in a duct running therein, the said duct being closed at one end or the other, depending upon the position of the said control-ring. The latter is held, by the pressure of the flowing medium, in the appropriate closed position, but the change-over may be effected independently of the pressure, since no axial forces are applied to the said control slide valve by the following medium.
420852
Robic Robic & Associes/associates
Sauder Karl
LandOfFree
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