Internal-combustion engines – Combustion chamber means having fuel injection only – Injection of fuel onto igniter – deflector – heater – or atomizer
Patent
1984-10-11
1986-03-11
Lall, Parshotam S.
Internal-combustion engines
Combustion chamber means having fuel injection only
Injection of fuel onto igniter, deflector, heater, or atomizer
123193CH, 123188AF, 123188VA, 123DIG4, F02B 2308
Patent
active
045747547
ABSTRACT:
A stratified charge combustion system is disclosed for use in a gaseous fuel internal combustion engine. The stratified charge combustion system comprises a combustion chamber, an ignition source in communication with the combustion chamber, and a gaseous fuel injection valve assembly in communication with the combustion chamber and in spaced relationship from the ignition source. An entry port for the gaseous fuel defined by the valve assembly is recessed outside the combustion chamber, and a transitional surface that curves away from the direction of fuel injection is located adjacent the entry port. When gaseous fuel is injected, it strikes the transitional surface at such an angle and speed that it clings to and follows the transitional surface under the Coanda Effect and then aerodynamically clings to and follows a wall of the combustion chamber as the gaseous fuel flows to the ignition source.
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