SOFT SEAL POPPET TYPE CHECK VALVE

SOFT SEAL POPPET TYPE CHECK VALVE

PROBLEM TO BE SOLVED: To provide a good sealing performance by providing with a poppet energized toward a closing position sealed flow of a fluid bypassing a check valve, arranging a circular cone shaped surface engaged with a circular cone surface of a valve seat on the poppet, and arranging an ela...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HARLOW RANDALL A, CARLBERG JAMES R, SEANEY STEVEN P, PHILLIPS JOSEPH T, WALLER RITA R, LAPKE ROBERT A, DUFFY JOSEPH F
Format: Patent
Sprache:eng
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a good sealing performance by providing with a poppet energized toward a closing position sealed flow of a fluid bypassing a check valve, arranging a circular cone shaped surface engaged with a circular cone surface of a valve seat on the poppet, and arranging an elastic seal in an annular groove formed on the circular cone shaped surface. SOLUTION: A check valve 10 which is suitably used in an automatic track adjuster is provided with an annular insert which is press-in fixed in a bore 15 of a valve body 11, and it is provided with a plurality of grooves 20 extending to a vertical direction formed in a bore 19 formed adjacent to the bore 14, and a circular cone shaped valve seat 21 communicated with the groove 20. A poppet 22 provided a circular cone shaped surface 23 on a counterpart side circular cone shaped surface 24 on a valve seat 21 freely to seat, is arranged in the insert 18, and an elastic elastomer seal 26 is mounted in a recessed annular seal groove 27 formed on the circular cone shaped surface 23 of the poppet 22. The seal 26 is formed in a shape provided with an arch type projection part 31 which is lower than the circular cone shaped surface 23 in a released condition.