Inventor
GROFF EDWARD G
US6 patents
Patents
6 patentsUS4987864AJan 29, 1991
Two cycle engine with valved pressure scavenging
GEN MOTORS CORP26 citations89
US4903669AFeb 27, 1990
Method and apparatus for closed loop fuel control
GEN MOTORS CORP33 citations85
US4969330ANov 13, 1990
Two cycle engine catalytic emission control
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US5237972AAug 24, 1993
Two-stage cycle engine and combustion chamber
GEN MOTORS CORP15 citations69
US4955338ASep 11, 1990
Engine and high turbulence piston therefor
GEN MOTORS CORP17 citations69
US4993373AFeb 19, 1991
Sealing shroud port timing valve for two cycle engine
GEN MOTORS CORP13 citations66