US PATENT SUBCLASS 123 / 404
.~.~ Suction operated supply valve lift regulating

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

319  DF  ENGINE SPEED REGULATOR {16}
402  DF  .~ Charge volume varying (e.g., total amount of mixture fed to engine is varied; relative amounts of air and fuel are fixed) {3}
404.~.~ Suction operated supply valve lift regulating

DEFINITION

Classification: 123/404

Suction operated supply valve lift regulating:

(under subclass 402) Subject matter in which the volume of the charge of combustible mixture to the engine is varied by controlling the degree of opening or amount of lift of an intake valve whose operation is dependent on the suction created in the cylinder during the intake stroke.