US PATENT SUBCLASS 123 / 664
.~ Combustion chamber shape is a figure of revolution

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

657  DF  COMBUSTION CHAMBER {11}
664.~ Combustion chamber shape is a figure of revolution {2}
665  DF  .~.~> Spherical
666  DF  .~.~> Hemispherical

DEFINITION

Classification: 123/664

Combustion chamber shape is a figure of revolution:

(under subclass 657) Subject matter wherein the combustion

chamber is of a shape which may be formed by rotating at least one planar shape through 360 deg. about a fixed central axis with the resulting volume being symmetrical about the central axis.