| 摘要 |
Within a displaceable enclosed volume, appreciably smaller than the engine displacement volume, a fuel-rich air fuel mixture is prepared. During the next engine intake process, this displacer mixture is pulsed into the engine intake air mass, to create a stratified air fuel mixture inside the engine cylinder.Subsequent combustion of this stratified engine air fuel mixture can be knock free, thus permitting the use of very high intake supercharge for small displacement, low speed, and thus high mechanical efficiency engines.By placement of insulating, air only portions, of the stratified engine air fuel mixture, against the engine cylinder head and piston crown, cooling jacket heat loss can be reduced, and fuel efficiency increased. In these ways, large improvements in vehicle miles per gallon can be achieved.
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