To provide the intake structure of an engine that can automatically feed oil accumulated in a collector box, into a combustion chamber by the operation of the engine.
In this intake structure of the engine, a connecting pipe 7 with an inner diameter of several millimeters is extended between the collector box 5 and an intake pipe 6. One open end part 7a of the connecting pipe 7 is connected to a bottom part of the collector box 5 and opened into the collector box 5. A peripheral part on the outside of a curve of the curved intake pipe 6 is piercingly provided with a pipe 71 with an outer diameter almost equal to the inner diameter of the connecting pipe 7, and the other open end part 7b of the connecting pipe 7 is connected to one end part 71a of the pipe 71 projecting to the outside of the intake pipe 6.
TANAKA YOSHINOBU
Takaishi Satoru
Yasu Furukawa
Toshio Nishitani
Keiji width
Izumi Uchiyama
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