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US 4,207,277 AGranted
Float chamber means for a carburetor
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsMasakatsu Sanada, Toshimitsu Ito
Life of this patent
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Abstract
A float chamber means for a carburetor having a heating element provided in its float chamber for selectively heating liquid fuel contained in the float chamber so that highly volatile components included in the fuel are vaporized in the float chamber and released from the liquid fuel before it enters into fuel passages provided in the carburetor thereby avoiding percolation due to abnormal vaporization of fuel in those fuel passages.
Claims8
A fuel supply system comprising a carburetor having:
- a body;
- a float chamber;
- a fuel inlet port opening into the float chamber to supply fuel thereinto;
- a fuel outlet port opening from the float chamber at a lower portion thereof to deliver fuel therefrom;
- a vent port opening from said float chamber at an upper portion thereof to vent gases therefrom;
- a heating element provided in the float chamber so as to be horizontally apart from the fuel outlet port to heat the fuel in the float chamber;
- a passage space left in the float chamber which allows gases generated from the fuel heated by said heating element to reach said upper portion of the float chamber due to its own buoyancy;
- and
- automatic control means including thermal sensor means connected to energize said heating element when a temperature representative of the temperature of the carburetor body is higher than a reference temperture and in the range of temperatures above moderate normal operating tempertures and to de-energize the heating element when said temperature is lower than said reference temperature.
6 more elements
Dependencies are inferred from the claim text.