Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1985-08-05
1987-01-20
Wolfe, Jr., Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
123440, F02M 2506
Patent
active
046373667
ABSTRACT:
A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow through the induction passage, a fuel-air mixture discharge member is situated generally in the induction passage downstream of the throttle valve, an air passage communicates between a source of air and the fuel-air mixture discharge member, the air passage is shown as also including a flow restrictor therein which provides for sonic flow therethrough, and a fuel metering valving assembly having a valve member is effective for metering liquid fuel as at a superatmospheric pressure and delivering such metered liquid fuel as into the air passage upstream of the flow restrictor thereby causing the thusly metered liquid fuel and air to pass through the sonic flow restrictor before being discharged into the induction passage by the fuel-air mixture discharge member, and a portion of the exhaust gases from an associated engine is directed as to mix with the air flowing through the air passage at an area upstream of the flow restrictor.
REFERENCES:
patent: 3944634 (1976-03-01), Gerlach
patent: 4292945 (1981-10-01), Kiesling
patent: 4437447 (1984-03-01), Johnson
patent: 4445485 (1984-05-01), Chamness, Jr.
patent: 4509483 (1985-04-01), Johnson
patent: 4546752 (1985-10-01), Blaser et al.
Colt Industries Operating Corp.
Potoroka, Sr. Walter
Wolfe, Jr. Willis R.
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