Carburetor

Abstract

A carburetor for internal combustion engines of motor vehicles, having a suction conduit supplied with fuel from a float chamber in which the fuel is kept at a constant level by a needle valve actuated by a pair of floats. The float chamber has vertical side walls and the outer surfaces of the floats, particularly those facing the walls of the float chamber, are also vertical. A main jet is located on a vertical line passing through the center of gravity of a plane figure defined by sectioning a horizontal plane by a spatial figure defined between the inner walls of the float chamber and the outer surfaces of the floats. The main jet is supported by a columnar structure having vertical walls, suspended from the cover of the carburetor and accommodating the main and idling circuits of the carburetor. The planes of the level of the fuel in the float chamber section the floats along figures whose static moments relative to the fulcrum of the needle valve closing lever are substantially the same as the inclination of the carburetor relative to the horizontal plane varies.