GB267639A - Carburetters for internal combustion engines - Google Patents

Abstract

267,639. Goodwin, W. E. Dec. 29, 1925. Spray carburettors. - The body a contains a throttle valve b on a vertical spindle b<1>, and is extended horizontally at a<2> to form a chamber to receive an adjustable tube c through which the main air passes and which is reduced at its inner end c<2> to produce an annular chamber a<3> which communicates with the air passage through an annular slit produced by withdrawing the end c<2> from the seat a' in the body. such slit also serving as an inlet for air to mix with the fuel passing to the pilot nozzle. The chamber a<3> communicates with the fuel supply means which is fed from the float chamber d through apertures e<1> and comprises a nozzle f and a tube h the bore of which communicates through orifices h<1> with a space open to the atmosphere through a perforated plug h<3>. Fig. 2. Fuel for slow running is led by a passage i from the space above the tube h to a valved aperture i<2>, Fig. 2, which coincides with a small duct i<3> in the edge of the throttle valve when the latter is closed, but the aperture may lead to the engine side of the throttle. The adjustable fuel control tube c is screw-threaded into the extension a<2>, and may be rotated by a Bowden cable k attached to one of the arms c<1> of a spider mounted on the tube, the return movement being effected by a spring j. A dome-shaped member l is secured to the arms c<1> over which a gauze disc l<1> is fitted. The movement of the throttle arm b<2> is limited by adjustable stops b<4> engaging a web b<5>.