Marine propulsion device low liquid pressure warning system

Details Marine propulsion device low liquid pressure warning system Marine propulsion device low liquid pressure warning system

1988-10-24

1990-04-03

Kamen, Noah P.

Internal-combustion engines

Cooling

Indicators and safety devices

123198D, F02B 7708

Patent

active

049131036

ABSTRACT:
A marine propulsion device comprising a propulsion unit including a propeller shaft adapted to support a propeller, and an internal combustion engine drivingly connected to the propeller shaft, the engine including a cavity adapted to house a liquid under pressure, a source of gas at a pressure different from atmospheric pressure, a whistle for producing a warning signal in response to communication between the source of gas and the whistle, and a valve for permitting communication between the source of gas and the whistle when the liquid pressure is below a specified value and for preventing communication between the source and the whistle when the liquid pressure is above the specified value.

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patent: 4526140 (1985-07-01), Monigold et al.
patent: 4695822 (1987-09-01), Furukawa

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