Carburetor having an electrically assisted choke valve
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United States of America Patent
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-
Sep 6, 1988
Grant Date -
N/A
app pub date -
Sep 14, 1987
filing date -
Sep 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A carburetor for internal combustion engines has an automatic starting device comprising a choke valve based toward opening by the air flow and toward closure by a temperature responsive bimetallic spiral when cold. A device further comprises a stop member an electrically controlled movable stop member having at least one active position in which it permits complete closure of the choke valve and a rest position in which it prevents closing movement of the choke valve beyond a predetermined position, and means arranged to bring said stop member into said active position, responsive to closure of the ignition switch and for being inhibited if after a sequence of operation of the cold engine during a period greater than a first threshold value, then rest condition of the engine for a period less than a second predetermined value.
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