US PATENT SUBCLASS 123 / 61 V
.~.~ Lengthwise scavenging of cylinders from cylinder head to piston


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

*  DD  DOUBLE-ACTING {2}
61 R  DF  .~ Two-cycle {2}
61 V.~.~ Lengthwise scavenging of cylinders from cylinder head to piston

Unofficial Alpha Subclasses: R V

DEFINITION

Classification: 123/61

Internal-combustion engines working on a two-stroke cycle and in which successive burned charges act upon opposite sides of a single piston reciprocating in a single cylinder, whereby the working piston is impelled alternately in each direction. Includes two-cycle engines operating upon recompression and also two-cycle engines operating upon pump-compression cycles, both of which terms are more fully explained hereinafter. The working cylinder in the engines in this subclass is of simple cylindrical form, and the supply-pump for the combustible mixture is wholly separate and distinct from the working cylinder and is not considered in this definition.