Drain valve assembly

Details Drain valve assembly Drain valve assembly

1977-10-03

1980-11-11

Schwadron, Martin P.

Fluid handling

Freeze condition responsive safety systems

Low temperature responsive drains

137468, 237 80, 251137, 251335A, E03B 710, F16K 3104

Patent

active

042326966

ABSTRACT:
A drain valve for use in the cooling system of a diesel engine for a locomotive including a valve body having a drain fitting mounted in the bottom portion thereof and a solenoid operated valve assembly mounted therein for opening and closing the drain fitting. A thermostat assembly is removably mounted on the exterior of the valve body in close thermal relationship to the interior of the valve, said thermostat operable to energize the solenoid and open the drain fitting when the temperature inside the valve reaches a predetermined minimum.

REFERENCES:
patent: 389098 (1888-09-01), Newman
patent: 629794 (1899-08-01), Lindsay
patent: 1028808 (1912-06-01), Campbell
patent: 1573157 (1926-02-01), Giddings
patent: 1786878 (1930-12-01), Van Keuren
patent: 1875513 (1932-09-01), Smith
patent: 1996907 (1935-04-01), Drake
patent: 3415487 (1968-12-01), Robarge
patent: 4065096 (1977-12-01), Frantz et al.

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