US PATENT SUBCLASS 123 / FOR 124
.~ Exhaust gas used with the combustible mixture (e.g., emission control (e.g.r. valve) (123/568)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


123 /   HD   INTERNAL-COMBUSTION ENGINES

FOR 101  DF  SPARK IGNITION TIMING CONTROL (123/406) {16}
FOR 124.~ Exhaust gas used with the combustible mixture (e.g., emission control (e.g.r. valve) (123/568) {3}
FOR 125  DF  .~.~> Diesel engine (123/569)
FOR 126  DF  .~.~> Exhaust gas cooled before recirculation (123/570)
FOR 127  DF  .~.~> Electrical control of e.g.r. valve (e.g., between exhaust gas and intake manifold) (123/571) {1}

DEFINITION

Classification: 123/FOR.124

Exhaust gas used with the combustible mixture (e.g., emission control e.g.r. valve):

Subject matter in which means is provided to return part or all of the products of combustion exhausted from the engine to the intake manifold or directly to the combustion chamber for subsequent reburning.