Automatic blower device for clearing fumes from a boat's engine

Details Automatic blower device for clearing fumes from a boat's engine Automatic blower device for clearing fumes from a boat's engine

1996-11-26

1998-08-04

Avila, Stephen

Ships

Ventilation

114183R, B63J 200

Patent

active

057878331

ABSTRACT:
A method and apparatus for clearing fumes from an engine compartment by providing a pressure switch which is activated when a pressure sensor responds to increased pressure when a boat is at rest or traveling at a wakeless speed in water. When the electrical system of the boat is activated and an inlet tube at the rear of the boat is below the surface of the water, water is able to rapidly enter the inlet tube. Pressure is generated by the presence of water within the inlet tube. Closing the pressure switch results in electrical energy being coupled to the bilge blower to thereby clear the fumes from the engine compartment.
In contrast, when the boat increases its speed to the point where it is planing, the boat is virtually skimming along the surface of the water. Consequently, the inlet tube at the rear end of the boat comes at least partially out of the water, allowing the water within the inlet tube to eventually drain and thus decrease pressure on the pressure sensor which causes the pressure switch to be opened. The electrical power is consequently removed from the blower and it is deactivated.

REFERENCES:
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patent: 4991532 (1991-02-01), Locke
patent: 5003906 (1991-04-01), Sova
patent: 5050520 (1991-09-01), Ballard
patent: 5069152 (1991-12-01), Carter
patent: 5357247 (1994-10-01), Marnel et al.
patent: 5381141 (1995-01-01), Stahl
patent: 5419271 (1995-05-01), Tweet et al.

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