Automatic control of engine compartment ventilation

Details Automatic control of engine compartment ventilation Automatic control of engine compartment ventilation

1989-06-02

1991-02-12

Peters, Jr., Joseph F.

Ships

Ventilation

98 1, 440 88, B63J 200

Patent

active

049915320

ABSTRACT:
An automatic fan controller for energizing a ventilation fan motor to eliminate fuel fumes from an engine compartment of a motorboat. A relay which provides electrical power to the motor of the ventilating fan when energized is controlled by an electronic circuit responsive to engine ignition circuit pulses, to keep the fan operating whenever engine speed is below a desired value. Additionally, a temperautre-controlled switch may be provided to energize the relay providing power to the fan motor until engine temperature reaches a certain level. A timer is provided in the electronic circuitry to prevent momentary activation of the ventiliation fan should the engine speed be varying slightly about the minimum engine speed.

REFERENCES:
patent: 1285659 (1918-11-01), Ford
patent: 3315584 (1967-04-01), Van Ranst
patent: 3489912 (1970-01-01), Hoffman, Jr.
patent: 3695208 (1972-10-01), Fixler
patent: 3789231 (1974-01-01), Hayden
patent: 3948202 (1976-04-01), Yoshikawa
patent: 3951091 (1976-04-01), Doench
patent: 4037578 (1977-03-01), Dersch
patent: 4134112 (1979-01-01), Kercheval et al.
patent: 4235181 (1980-11-01), Stickney

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