Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1978-02-07
1981-04-14
Cline, William R.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
137112, F16K 3112
Patent
active
042613817
ABSTRACT:
A cross-flow controlling valve for a hydropneumatic vehicle suspension has a casing formed with three ports of which two communicate with longitudinally terminal portions of a bore in the casing. A piston is freely slidable in the bore between two terminal positions. Longitudinally spaced shoulder portions of the bore bound a transversely open, longitudinal groove in the piston which is longer than the intermediate portion of the casing bore connecting the terminal bore portions. Each shoulder portion is dimensioned to bound a throttling gap connecting the groove with one of the terminal bore portions when the shoulder portion is received in the intermediate bore portion. The groove in the piston permanently communicates with the third casing port.
REFERENCES:
patent: 1588657 (1926-06-01), Christensen
patent: 1919430 (1933-07-01), Hewitt
patent: 2643664 (1953-06-01), Willett
patent: 2764176 (1956-09-01), Darquier
patent: 3618628 (1971-11-01), Kramer
patent: 4121601 (1978-10-01), Presley
Cline William R.
Fichtel & Sachs AG
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