Combustion Chamber with Double Convex Surfaces and Double Concave Surfaces
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United States of America Patent
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N/A
Issued Date -
May 6, 2010
app pub date -
Nov 6, 2008
filing date -
Nov 6, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A combustion chamber bowl is defined in a crown of a piston for use in a cylinder of a diesel engine. The combustion chamber bowl includes a center convex spherical portion, first and second annular concave portions and an annular convex portion. The center convex spherical portion is elevated relative to a bottom plane of the combustion chamber bowl and smoothly transitions into the first concave annular portion which transitions smoothly into the second concave annular portion. The second concave annular portion smoothly transitions into the convex annular portion which smoothly transitions into the top surface of the piston crown.
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