Internal-combustion engines – Charge forming device – Auxiliary air or gas used to inject fuel
Patent
1989-06-21
1991-01-29
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Auxiliary air or gas used to inject fuel
123533, 13762414, 239412, 2395332, F02M 2300, F02M 5900, F17D 301, B05B 726
Patent
active
049878786
ABSTRACT:
A fuel injection system (10) having a unique injector (226) cooperating with a unique pump (228) for blowing fuel into the combustion chamber (20) of a diesel engine (12). A reciprocating valve (202) and diaphragm (196) in the pump assembly (174) cooperate to periodically discharge vapor, such as compressed air or steam, and fuel to the injector (26). The vapor drives a piston assembly (32) and a valve assembly (36) to admit high-pressure vapor to a mixing chamber (124). Fuel is simultaneously supplied through a fuel valve assembly (130) to a fuel distribution ring (134) in the mixing chamber (124). The high-pressure vapor or gases blow the fuel from the mixing chamber (124) into the combustion chamber (20). Alternatively, the high-pressure vapor is replaced with a combustion product from a combustion chamber (257) formed in the injector (253). Combustion fuel is supplied through an intake valve (321) and excess gases are exhausted through exhaust valve (323). Pressure from combustion gases in the chamber (257) drives the piston assembly (267) and valve assembly (271). Vapor pressure from the combustion gases also blows the fuel into the cylinder.
REFERENCES:
patent: 2552960 (1951-05-01), Grieshaber et al.
patent: 2697007 (1954-12-01), Wille
patent: 3053461 (1962-09-01), Inglis
patent: 4771754 (1988-09-01), Reinke
Argenbright Tony M.
Mates Robert E.
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