Idle detector for internal combustion engine

Details Idle detector for internal combustion engine Idle detector for internal combustion engine

1988-08-17

1989-09-05

Argenbright, Tony M.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

261 444, F02M 1734

Patent

active

048628506

ABSTRACT:
An idle detector and safety apparatus for use in an internal combustion engine includes a magnet which is mounted to the carburetor piston valve and a magnetically actuatable switch positioned outside of the carburetor body. A sensor is also provided to indicate throttle position. When the throttle sensor indicates the throttle is in an idle position, a circuit checks the status of the magnetically actuatable switch. If the switch indicates that the piston valve is in the idle position as is proper, engine ignition is allowed to continue. If the switch indicates that the piston valve is improperly in a high speed position, engine ignition is caused to be interrupted. As a result, the engine is prevented from going into an uncontrolled, runaway condition should the piston valve become misplaced.

REFERENCES:
patent: 3722491 (1973-03-01), Maeda
patent: 4043198 (1977-08-01), Sotillwell et al.
patent: 4304201 (1981-12-01), Bleeke
patent: 4513706 (1985-04-01), Atzet
patent: 4524736 (1985-06-01), Sackett
patent: 4755790 (1988-07-01), Umehara

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