Method and apparatus for forming fuel-air mixture in an internal

Details Method and apparatus for forming fuel-air mixture in an internal Method and apparatus for forming fuel-air mixture in an internal

1981-06-22

1983-10-11

Argenbright, Tony M.

Internal-combustion engines

Additional air supply

123533, F02M 6702

Patent

active

044085745

ABSTRACT:
The method and device for the formation of a fuel-air mixture upstream of the mixture-forming nozzles of an internal combustion engine. The combustible fuel is vaporized and introduced into a combustion chamber through a fuel vapor passage and nozzles, and an air pump connected to the fuel vapor passage introduces pressurized air therein at a selected time in the engine cycle. This results in the discharge of pressurized air together with vaporized fuel through the nozzle into the combustion chamber to form a zone of fuel-air mixture enveloped by a jacket of air during the compression stroke of the engine and protect the nozzles and fuel passages against the hot combustion gases. Air without fuel is then discharged into the combustion chamber during combustion of the vaporized fuel. An auxiliary air chamber connected to the main chamber of the air pump through a valve that is opened and closed at selected times during the cycle of the engine serves to increase the mass of gas delivered by the pump.

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