Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Patent
1979-05-09
1981-06-16
Stephan, Steven L.
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
137207, F16L 5504
Patent
active
042731585
ABSTRACT:
The invention relates to a pressure pulse dampener device to be used in association with a liquid conduit, said device comprising a pressure vessel having a movable partition therein defining two chambers, each having a port in communication therewith, one of the ports defining a gas port for charging of one of said chambers with gas under pressure and the other, a liquid port, said liquid port having a hollow fitting rigidly secured thereto, said fitting having an inlet port and an outlet port, the fitting having means therein defining a tortuous path for oil under pressure from said inlet port to said outlet port, the liquid port being valve controlled and being in communication with the tortuous path, the device being characterized by incorporating therein in the fluid conduit downstream of the outlet port, a valve controlled outlet through which the liquid may flow, the effective cross sectional area of the outlet being varied automatically responsive to the pressure in the hydraulic system.
REFERENCES:
patent: 3782418 (1974-01-01), Zahid
patent: 3857413 (1974-12-01), Zahid
patent: 3868972 (1975-03-01), Zirps
patent: 4069844 (1978-01-01), Zahid
patent: 4080996 (1978-03-01), Zahid
Colvin Arthur B.
Greer Hydraulics Incorporated
Stephan Steven L.
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