Importance

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Abstract

In a carburetor system having an electrically-heated choke system including a first heat generating member which is heated by the power supplied from a battery and a first thermo-sensitive member which is deformed by the heating operation of the first heat generating member and adapted for controlling an opening and closing operation of a choke valve by the deformation of the first thermo-sensitive member, and a fast idle system adapted for controlling an opening and closing operation of a throttle valve, the inventive carburetor controlling system comprises a second heat generating member which is heated by the power supplied from the battery, a second thermo-sensitive member which is deformed by the heating operation of the second heat generating member and controls an opening and closing operation of the throttle valve, a control circuit connected between the battery and the first and second heat generating members, a thermosensor for detecting an atmospheric temperature. The control circuit comprises a comparator circuit for comparing a compared input voltage corresponding to an output of the thermosensor with a predetermined reference voltage and a power circuit for controlling an amount of power supplied from the battery to the first and second heat generating members in accordance with the compared output of the comparator circuit.

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First Claim