Internal-combustion engines – Charge forming device – Combined liquid and gaseous fuel
Patent
1981-03-27
1983-02-01
Myhre, Charles J.
Internal-combustion engines
Charge forming device
Combined liquid and gaseous fuel
123590, 123577, 48180R, F02M 2102, F02M 2900
Patent
active
043709699
ABSTRACT:
A propane gas feed device and system are provided wherein controlled, measured quantities of propane gas are controllably pre-mixed with air and this pre-mixture of air-propane is fed as a carburetor mixture for combustion in the engine. An air cut-off screen is controllably operated to adjust the air-fuel ratio relative to a changeover in the propane and gasoline demands. The propane feed system may be retro-fitted to an automobile employing conventional propane feed and provides for more efficient use of the propane with reduced unburned fraction in the engine exhaust. The propane air-feed device is also useful as wherein propane is the sole fuel.
REFERENCES:
patent: 2701133 (1955-02-01), Mendez
patent: 2831756 (1958-04-01), Miles et al.
patent: 2896658 (1959-07-01), Jones
patent: 2939775 (1960-06-01), Middleton et al.
patent: 2983592 (1961-05-01), Jones
patent: 3049415 (1962-08-01), Hansen
patent: 3081160 (1963-03-01), Ensign
patent: 4063905 (1972-12-01), Johnson et al.
Bocassi Joseph V.
Miller Robert S.
Zarrelli Neal
Chaboty Jules L.
Cross E. Rollins
Feldman Marvin
Feldman Stephen E.
Myhre Charles J.
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