Fluid handling – Systems – Supply and exhaust
Patent
1990-01-24
1991-09-10
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
13762565, 25112907, 251282, F15B 13044, F16K 3106, F16K 3902, F16K 4100
Patent
active
050465309
ABSTRACT:
A force-balanced lifting valve for the control of a fluid, comprises a housing having paths for the fluid, an axially movable component in the form of a valve body provided on a shaft mounted so as to be axially movable in the housing, for the opening and closing a valve opening, and a sealing structure for sealing the axially movable component with respect to the housing. The valve body has associated therewith a force-balancing compensation area, which can be acted upon by pressure fluid by way of a subsidiary channel. The sealing structure comprises an elastic, axially effective sealing ring which sealingly engages the valve housing and the axially movable valve component, such that a radial portion of the ring rests axially and sealingly against at least one abutment shoulder on the axially movable valve component.
REFERENCES:
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patent: 3214134 (1965-10-01), Noakes
patent: 3303854 (1967-02-01), Churchill
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patent: 4598736 (1986-07-01), Chorkey
patent: 4647008 (1987-03-01), Shirai et al.
patent: 4821774 (1989-04-01), Chorkey
patent: 4852853 (1989-08-01), Toshio
Bungeroth Lutz
Gossner Matthias
Leu Peter
Thomsen Uwe
Trenkmann Joachim
H. Kuhnke GmbH KG
Michalsky Gerald A.
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