US PATENT SUBCLASS 123 / 47 R
VALVED PISTON


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

47 RVALVED PISTON {3}
47 A  DF  .~> Charge passes from crankcase through valve in piston
47 AA  DF  .~> Lost motion connection actuates valve
47 AB  DF  .~> Inlet and exhaust valve in piston

Unofficial Alpha Subclasses: R A AA AB

DEFINITION

Classification: 123/47

Internal-combustion engines having a cylinder and working piston reciprocating therein, but irrespective of other structural features, cycle, or mode of operation, the said working piston being provided with a passage leading into the working cylinder and controlled by a valve depending upon the engine for its operation, said valve being concerned either with the supply of the successive combustible charges to the working cylinder or with the exhaust of the burned gases therefrom.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

222+, for cyclically operable, expansible chamber motors having a valved piston.