Structure of a main combustion chamber of a diesel engine of a direct injection type
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United States of America Patent
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Jan 13, 1987
Grant Date -
N/A
app pub date -
Jan 16, 1985
filing date -
Jan 16, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure describes a structure of a main combustion chamber of a diesel engine of a direct injection type in which a main combustion chamber having a peripheral wall which includes a plurality of collision walls and guide walls which are disposed alternately to each other in a circumferential direction of the piston, characterized in that; each guide wall includes an upstream portion and a downstream portion with a boundary therebetween in the direction of the swirl, a radial distance from the center of the chamber to the boundary is shorter than a radial distance from the center of the chamber to other portions and each upstream portion has a longer radius of a curvature and a circumferential length than each downstream portion so that the inner periphery of the chamber has a pin-wheel-like shape.
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