US PATENT SUBCLASS 123 / 663
.~ Annular combustion chamber

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

657  DF  COMBUSTION CHAMBER {11}
663.~ Annular combustion chamber

DEFINITION

Classification: 123/663

Annular combustion chamber:

(under subclass 657) Subject matter wherein the combustion chamber is formed by rotating a planar shape through 360 deg. about a fixed central axis to form a ringlike or annular chamber.