Pressure actuated drain valve for marine drive

Details Pressure actuated drain valve for marine drive Pressure actuated drain valve for marine drive

1986-12-30

1988-05-03

Peters, Jr., Joseph F.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

440113, B63C 908

Patent

active

047417153

ABSTRACT:
A pressure actuated drain valve for automatically draining the cooling water from a marine drive engine when the engine is stopped. The drain valve includes a spring-loaded diaphragm which moves to a closed position when the engine water pump is operating to close an outlet from the engine cavities to be drained. The diaphragm automatically moves to its open position when the engine water pump is off to open the outlet to allow cooling water to drain from the engine cavities.

REFERENCES:
patent: 271060 (1883-01-01), Graham
patent: 2350598 (1944-06-01), Faville
patent: 2655121 (1953-10-01), Cuneo
patent: 2884888 (1959-05-01), Pujol
patent: 2959144 (1960-11-01), Youtie
patent: 2966525 (1949-04-01), Wilson
patent: 2966875 (1961-01-01), Irey
patent: 3011468 (1961-12-01), O'Gara
patent: 3067714 (1962-12-01), Allmand
patent: 3550612 (1970-12-01), Maxon
patent: 3875888 (1975-04-01), Bier
patent: 4357912 (1982-11-01), Brown

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