Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1991-06-28
1992-08-25
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
1375123, F16K 1504
Patent
active
051410257
ABSTRACT:
A quiet closure check valve, including a housing having a valve seat toward the housing, a ball is associated with the valve seat to close the valve. The ball is received longitudinally displaceably in a recess of a spring-loaded support element that is defined by a bottom and a collar-like portion. Upon closure of the check valve, the support element rests on the housing, by spring action. The ball is lifted from the bottom of the support element and applied to the valve seat by the pressure of the fluid, in a manner free of spring forces. In this way, bothersome vibration of the ball is avoided.
REFERENCES:
patent: 4393895 (1983-07-01), Rubey
patent: 4877052 (1989-10-01), Toshio
Eichhorn Alexander
Fees Hans-Joerg
Hohl Guenther
Kaes Guenter
Megerle Friedrich
Greigg Edwin E.
Greigg Ronald E.
Nilson Robert G.
Robert & Bosch GmbH
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