Fuel-air ratio control with torque-limiting spring for superchar

Details Fuel-air ratio control with torque-limiting spring for superchar Fuel-air ratio control with torque-limiting spring for superchar

1977-10-27

1979-04-17

Croyle, Carlton R.

Internal-combustion engines

Igniters

Incandescent

123140MP, F02D 104, F02D 106

Patent

active

041495071

ABSTRACT:
An improved fuel-air ratio control apparatus for a supercharged engine having a governor means connected to a fuel adjusting member and a supercharger for supplying air through an intake manifold is disclosed. The control apparatus is directly engageable with the fuel adjusting member and is responsive to intake manifold air pressure and engine oil pressure. The apparatus is inoperative to restrain the adjusting member during start-up of the engine and remains so until such time as a predetermined intake manifold pressure is attained, at which time the control apparatus moves to a position which permits the metering of engine oil therethrough to permit normal governor operation and proportional increases of fuel with air pressure increased. The control apparatus thereafter automatically limits the fuel supplied to the engine, and therefore engine torque rise, during a decrease in engine speed caused by loading on the engine to thereby limit any undesired exhaust smoke. The improvement relates to the amount of torque reduction available from two torque reducer springs, and to the new means for adjustment of the rate of torque reduction using jam nuts.

REFERENCES:
patent: 3358664 (1967-12-01), Thompson
patent: 3707144 (1972-12-01), Galis et al.
patent: 3795233 (1974-03-01), Crews et al.
patent: 3911885 (1975-10-01), Hammond
patent: 3916862 (1975-11-01), Clouse et al.

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