Spool valve having improved sealing characteristics

Details Spool valve having improved sealing characteristics Spool valve having improved sealing characteristics

1991-08-28

1992-11-17

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762525, 251167, 251172, 251174, 251175, F15B 13042

Patent

active

051634783

ABSTRACT:
A valve whose housing has valve spool receiving means arranged in it so that the spool is able to move between two switching positions reciprocatingly and is able to connect valve ducts in the housing with each other for the passage of fluid. For this purpose it has window-like transversely extending passages, through which the fluid may flow between two valve ducts. While offering a low resistance to flow the valve design leads to large orifices. Special means are provided for sealing and the control of frictional forces during operation.

REFERENCES:
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patent: 3215163 (1965-11-01), Henderson
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patent: 3595274 (1971-07-01), Faisandier
patent: 3776276 (1973-12-01), Stiltner
patent: 3959024 (1976-05-01), Kirk et al.
patent: 4136853 (1979-01-01), Johansson et al.
patent: 4548238 (1985-10-01), Chorkey
patent: 4825907 (1989-05-01), Johnson et al.

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