Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Stratification in combustion chamber
Patent
1989-12-21
1991-10-01
Argenbright, Tony M.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Stratification in combustion chamber
123431, 123527, F02B 1700, F02B 708, F02B 4304, F02M 2104
Patent
active
050523600
ABSTRACT:
A process and apparatus for timed port injection and enriched stratified charge of fuel, preferably gaseous fuel, into an internal combustion engine. The process begins with forming a lean fuel/air mixture with a first fuel portion in an intake manifold upstream of a port injector. The lean fuel/air mixture is uniformly distributed into a combustion chamber during an intake phase of an engine cycle. A subsequent fuel portion is injected in a controlled manner during the intake phase so as to form a stratified charge near the ignitor within the cylinder. The stratified charge within the cylinder is ignited and combusted. Combustion products are then exhausted from the combustion chamber. This invention also provides an apparatus and process for injecting a gaseous fuel within a combustion chamber to form an enriched portion of a stratified charge near the ignitor.
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Ingle, III William D.
Wells Allen D.
Argenbright Tony M.
Gas Research Institute
Mates Robert E.
Pauley Douglas H.
Speckman Thomas W.
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