US PATENT SUBCLASS 123 / 279
.~ Piston carried precombustion chamber


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123 /   HD   INTERNAL-COMBUSTION ENGINES

253  DF  PRECOMBUSTION AND MAIN COMBUSTION CHAMBERS IN SERIES {22}
279.~ Piston carried precombustion chamber


DEFINITION

Classification: 123/279

Piston carried precombustion chamber:

(under subclass 253) Subject matter wherein the prechamber is carried by and mounted on the engine piston.

(1) Note. The prechamber may be fueled from the combustion chamber, or through the piston, and/or cylinder wall.