Variable venturi-type carburetor
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United States of America Patent
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-
Jan 15, 1985
Issued Date -
N/A
app pub date -
Jun 7, 1984
filing date -
Dec 28, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A variable venturi-type carburetor comprising a suction piston which has a tip face. A raised wall is formed on the inner wall of the intake passage, which faces the tip face of the suction piston. The raised wall has a substantially straight extending tip edge. The inner wall of the intake passage and the tip edge of the raised wall define a D-shaped air inlet mouth. The connecting portions of the inner wall of the intake passage and the tip edge of the raised wall have an arc shape. The upstream end portion of the tip face of the suction piston and the tip edge of the raised wall define an isosceles triangular air inlet opening therebetween when the amount of air fed into the cylinder of the engine is small.
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