Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1993-07-01
1995-04-25
Walton, George L.
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137433, F16K 3122, F16K 3300
Patent
active
054090334
ABSTRACT:
An overflow-preventing valve of the present invention is installed in a sealing liquid supply system for a compressor. The overflow-preventing valve includes first and second valve bodies with inlet and outlet portions, a chamber formed in at least one of the valve bodies, and a float valve situated in the chamber. The float valve has an inverse U-character shape in a cross section and is slidably mounted in the chamber so that when a liquid level rises, the float valve comes into close contact with an upper portion of the chamber to prevent the liquid from entering into the outlet portion. The sealing liquid supply system includes a sealing liquid pump, a sealing liquid head tank, a liquid level controller and a liquid level controlling valve, in addition to the overflow-preventing valve. In the system, the sealing liquid is almost completely prevented from passing through the overflow-preventing valve without transfer barriers.
REFERENCES:
patent: 442529 (1890-12-01), Merrill
patent: 1073354 (1913-09-01), Lauterbach
patent: 1139130 (1915-05-01), McKeown
patent: 1667877 (1928-05-01), Star
patent: 2812772 (1957-11-01), Moore
patent: 3467135 (1969-09-01), Muskalla
patent: 3768505 (1973-10-01), Benke
patent: 3860026 (1975-01-01), Van Der Koogh
patent: 3910l302 (1975-10-01), Sudhir
MHI Turbo-Techno Co.
Walton George L.
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