Internal-combustion engines – Charge forming device – Auxiliary control of carburetor fuel metering
Patent
1979-11-21
1981-04-28
Myhre, Charles J.
Internal-combustion engines
Charge forming device
Auxiliary control of carburetor fuel metering
123489, 60276, 70 23, 204195S, F02M 700
Patent
active
042638836
ABSTRACT:
The system comprises a zirconium sensor interposed in the exhaust conduit of a gas-fueled engine for sensing both oxygen content and temperature of the exhaust gases, and for emitting electrical analog signals thereof to a comparator/controller. In turn, the latter transmits a complementary, derivative electrical signal to a current-to-pressure transducer. The transducer is supplied with gas under pressure, from the engine fuel (gas) supply line, and the pressure of this transducer-supplied gas is modulated by the aforesaid derivative signal. The modulated gas pressure is communicated with a gas cylinder, having a translating piston rod, which is operatively engaged with an otherwise standard gas engine regulator for trimming control of the flow of fuel (gas) through the regulator.
REFERENCES:
patent: 3616274 (1971-10-01), Eddy
patent: 3915135 (1975-10-01), Kushida et al.
patent: 4019974 (1977-04-01), Weyl et al.
patent: 4129099 (1978-12-01), Howath
patent: 4135381 (1979-01-01), Sherwin
patent: 4212273 (1980-07-01), Maruoka
Alford Raymond N.
Dopkin Joseph A.
Treible Edwin S.
Ingersoll-Rand Company
Murphy Bernard J.
Myhre Charles J.
Nelli R. A.
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