US PATENT SUBCLASS 123 / 276
.~.~.~ Fuel injected into precombustion chamber formed in piston

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

253  DF  PRECOMBUSTION AND MAIN COMBUSTION CHAMBERS IN SERIES {22}
274  DF  .~ Having combustible mixture forming means {1}
275  DF  .~.~ By fuel injection into precombustion or main combustion chamber {3}
276.~.~.~ Fuel injected into precombustion chamber formed in piston

DEFINITION

Classification: 123/276

Fuel injected into precombustion chamber formed in piston:

(under subclass 275) Subject matter where fuel under pressure greater than atmospheric is introduced into a prechamber which is located in the engine piston.