Multiway slide valve
First Claim
1. A multiway slide valve having a housing which includes a cylindrical guide bore, said housing includes at least one pressure inlet port and one pressure outlet port, a preassembled unitary valve assembly formed by a plurality of sealing rings and separating spacers, adjacent ones of said plurality of separating spacers are collectively interconnected together by projections which pass through said sealing rings and mate with recesses, said plurality of sealing rings and separating spacers concurrently disposed within said cylindrical guide bore for defining a pressure chamber, a slide spool cooperates with said sealing rings for selectively establishing communication between said pressure inlet port and said pressure outlet port through said pressure chamber, and said cylindrical guide bore is graduated into sections which have different diameters for facilitating insertion of the valve assembly and for reducing damage to the valve assembly.
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Accused Products
Abstract
A multiway slide valve having a housing provided with a graduated cylindrical guide bore, a pressure inlet port, and a pair of pressure outlets ports. A preassembled valve seat unit including a plurality of annular spacers which carry sealing rings having respective diameters corresponding to the graduations of the guide bore so that damage to the sealing rings is prevented when inserted into the graduated cylindrical guide bore. A slide spool and jacket inserted into the guide bore. A cover attached to the housing for depressing the jacket which causes deformation of the sealing rings to provide a tight seal between the graduations of the guide bore and the slide spool.
40 Citations
10 Claims
- 1. A multiway slide valve having a housing which includes a cylindrical guide bore, said housing includes at least one pressure inlet port and one pressure outlet port, a preassembled unitary valve assembly formed by a plurality of sealing rings and separating spacers, adjacent ones of said plurality of separating spacers are collectively interconnected together by projections which pass through said sealing rings and mate with recesses, said plurality of sealing rings and separating spacers concurrently disposed within said cylindrical guide bore for defining a pressure chamber, a slide spool cooperates with said sealing rings for selectively establishing communication between said pressure inlet port and said pressure outlet port through said pressure chamber, and said cylindrical guide bore is graduated into sections which have different diameters for facilitating insertion of the valve assembly and for reducing damage to the valve assembly.
Specification