To set an injection timing of air-fuel mixture to a combustion chamber with a simple structure and certainly.
In a fuel injection type engine 1, a diaphragm operating poppet valve 2 is arranged for supplying air-fuel mixture to a combustion chamber of a two-cycle engine. An outlet of an air-fuel mixture passage 51 for supplying the air-fuel mixture, vaporized by a curbureter 53, is led to an air-fuel mixture inlet 27 of the diaphragm operating poppet valve. A reciprocating piston type air pump 54 adopting a crankshaft 5 as a driving source is arranged on the way of the air-fuel mixture passage. Pressure of the reciprocating piston type air pump on the secondary side 64 is introduced to an operation port 29 of a diaphragm through a pilot line 71.
| WO/2000/017500 | ENGINE WITH CRANKCASE COMPRESSION |
TAKADA YOSHIHIRO
TSUSHIMA YUJI
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