US PATENT SUBCLASS 123 / 219
.~.~ Stratification
Current as of:
June, 1999
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123 /
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INTERNAL-COMBUSTION ENGINES
200
DF
ROTARY
{12}
216
DF
.~ With charge treatment means {4}
219
.~.~ Stratification
DEFINITION
Classification: 123/219
Stratification:
(under subclass 216) Apparatus wherein the treatment means consists of structure for feeding air or air/fuel mixtures having different air/fuel ratios into the working chamber.