Internal combustion engine piston
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United States of America Patent
Stats
-
Oct 14, 1986
Grant Date -
N/A
app pub date -
Feb 11, 1985
filing date -
Jun 28, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an internal combustion engine comprising a piston (1) having a combustion bowl (3) recessed in the crown of the piston and a plurality of arcuate recesses (7) formed in the side wall (6) of the bowl spaced apart by arcuate intermediate portions of the side wall, swirl means to cause the inlet air to rotate about the axis of the bowl, and fuel injection means (2) that serves to direct a plurality of fuel jets radially of the bowl each towards a corresponding recess (7), the piston is characterized in that the ratio of the maximum distance by which each recess (7) extends radially into the side wall (6) compared with the radius of the side wall (6), lies within the range 0.10 to 0.20.
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