Heater for deicing carburetors
AssigneeMikuni Kogyo Kabushiki Kaisha
InventorsHaruo Endou, Masao Ishizuka
Life of this patent
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Abstract
A carburetor for internal combustion engines having a by-pass port for supplying a pilot fuel to an intake passage includes an electric heater disposed adjacent the by-pass port for heating the latter and a heat-insulating material partially covering the electric heater, whereby the heater is partially exposed from the heat-insulating material to locally heat the by-pass port in a quick and effective manner.
Claims8
In a carburetor for an internal combustion engine including a housing with an intake passage, a throttle valve in said intake passage, a pilot fuel passage communicating with a fuel chamber and a by-pass port or ports branching from said pilot fuel passage and opening to said intake passage at a location adjacent said throttle valve, the improvement comprising electrical heating means disposed in said housing, said electrical heating means comprising:
- a by-pass block mounted in said housing, the by-pass port or ports being formed in said by-pass block and the pilot fuel passage running through said by-pass block;
- a heating element disposed within said by-pass block adjacent the by-pass port or ports;
- and
- heat-insulating material in intimate contact with and surrounding said heating element except for the surface of said heating element facing the by-pass port or ports, said surface being free from contact with said heat insulating material.
In a carburetor for an internal combustion engine including a housing with an intake passage, a throttle valve in said intake passage, a pilot fuel passage communicating with a fuel chamber and a by-pass port or ports being branched from said pilot fuel passage and opening to said intake passage at a location adjacent said throttle valve, the improvement comprising an electric heating means disposed in a recess in the housing at a location adjacent the by-pass port or ports for heating the by-pass port and heat-insulating means disposed in said recess and covering said heating means, the surface of said heating means facing the by-pass port being uncovered from said heat-insulating means for exposure of said surface to the by-pass port, said heat-insulating means extending beyond said recess and said uncovered heating element surface to surround at least a portion of the by-pass port or ports.
Dependencies are inferred from the claim text.