Heat insulating mounting device for carburetor

Claim 1

In an internal combustion engine including at least one engine cylinder, said engine having an engine well with an opening therethrough. In the passage through said opening of a mixture of air and fuel, said engine wall having a carburetor mounted adjacent thereto, the improvement comprising: a heat insulating mounting device for mounting said carburetor adjacent said engine wall through heat insulating material, said heat insulating mounting device comprising a heat insulating casing and a separate air-permeable casing lid, said heat insulating mounting device surrounding said carburetor and extending between said wall of said engine and said carburetor, said casing being connected to said cylinder in a manner to isolate the carburetor from the heat of radiation of said engine, and a flexible air passageway of small thickness passing through said casing to form a heat insulating path for air and fuel between said carburetor and said opening through said engine wall, said flexible air passageway being surrounded by said casing and being formed of a heat insulating high molecular compound of rubbery properties.