Direct-injection engine, method of controlling the same, piston used in the same and fuel injection valve used in the same
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United States of America Patent
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Jun 19, 2007
Grant Date -
Nov 16, 2006
app pub date -
Apr 10, 2006
filing date -
Apr 11, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An injector having three concentrated fuel spray bands is used, one of the fuel spray bands is directed to an spark plug, and the others are directed to curved grooves on a piston. The sprays that enter each groove advance along each groove, mutually collide substantially under the spark plug, and are ascended. Further, these spray bands are carried to the vicinity of the spark plug by a tumble flow and stable stratified air-fuel mixture is formed. As described above, stable and satisfactory stratified combustion can be made.
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