Valve device for selectively connecting a pressure gauge

Details Valve device for selectively connecting a pressure gauge Valve device for selectively connecting a pressure gauge

G - Physics

01

L

137/34

G01L 7/00 (2006.01) G01L 19/00 (2006.01)

Patent

CA 1089738

A B S T R A C T A rotary valve device for the selective connection of a pressure sensing device to any one of a number of sep- arate pressure lines in a hydraulic control system, the se- lector valve comprising a cylindrical valve base with axial pressure line bores on a circle and a pressure relief bore on a larger radius, each bore having arranged therein a spring-loaded valve with a valve plunger whose protruding head cooperates with a rotatable selector disc. The selec- tor disc, settable by means of a selector sleeve, carries a selector cam for the pressure line valves and a series of pressure relief cams for the pressure relief valve which is opened half-way between adjacent pressure line connection positions. A detent mechanism, with detent cams on the se- lector disc, positions the device in all pressure line con- necting positions and pressure relief positions. A pressure gauge is connected to the pressure line valves via a central connecting cavity.

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