Slide and pin type carburetor
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United States of America Patent
Stats
-
Mar 21, 1989
Grant Date -
N/A
app pub date -
Nov 17, 1987
filing date -
Nov 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slide and pin type carburetor using a plate-shaped slide valve in which the lower end surface of a flat plate portion is placed on the same plane as that of a column-shaped portion, the flow rate of air is controlled in the periphery of the column-shaped portion within the region in which the column-shaped portion exists and in front of the flat plate portion within the region in which no column-shaped portion exists, and a cutaway is formed, ranging from the surface located on the upstream side of the lower end of the flat plate portion to the bottom surface of the column-shaped portion, toward the downstream side, in order to make it possible to set properly the level of a negative pressure to be produced without raising abnormally the negative pressure produced in the vicinity of the exit of a main fuel nozzle and to increase the flow velocity of air, without producing any turbulence, in the vicinity of the exit of the main fuel nozzle so that the atomization of the fuel is favorably performed. The cutaway has an inclined surface descending from the upstream side toward the downstream side to shape a part of a conical surface directed to a fuel metering needle mounted on the bottom surface of the column-shaped portion.
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Family
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Cited Art Landscape
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