Idle fuel residual storage system

Details Idle fuel residual storage system Idle fuel residual storage system

1984-11-13

1986-05-27

Wolfe, W. R.

Internal-combustion engines

Two-cycle

Rear compression

123 73V, F02B 3304, F02M 2500

Patent

active

045908974

ABSTRACT:
In a two cycle internal combustion engine (2) wherein heavy fuel ends accumulate in lower portions of the crankcase (8), recirculation means (36, 38) are provided for variably recirculating the heavy fuel ends back into the crankcase only at higher engine speeds for subsequent combustion. The heavy fuel ends are collected in a reservoir (36), and held therein at idle, to minimize engine smoke. The heavy fuel ends are released from the reservoir at higher engine speed for recirculation through a delivery line (40) which is selectively exposed by a throttle valve (24) to crankcase vacuum only at higher engine speed, whereby the heavy fuel ends are sucked from the reservoir through the delivery line and carburetor throat (26) into the crankcase.

REFERENCES:
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patent: 3528395 (1970-09-01), Goggi
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patent: 4181101 (1980-01-01), Yamamoto
patent: 4213431 (1980-07-01), Onishi
patent: 4359975 (1982-11-01), Heidner

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