F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/54
F02M 19/10 (2006.01) F02M 11/02 (2006.01) F02M 35/108 (2006.01) F02M 35/10 (2006.01)
Patent
CA 1182353
ABSTRACT OF THE DISCLOSURE A duplex carburetor for an internal combustion engine has a primary barrel having a primary venturi for supplying an air-fuel mixture to an intake manifold under a full range of engine loads and a secondary barrel having a secondary venturi for supplying an air-fuel mixture to the manifold under higher engine loads. The primary venturi has a cross section which ranges from 20% to 30% of that of the secondary venturi. The secondary barrel has a flattened cross sectional shape such as of a segment of a circle or an ellipse, and is located adjacent to the primary barrel. The intake manifold is of a duplex con- struction having primary and secondary common passages connected to the primary and secondary barrels, respectively, of the car- buretor. The secondary passage of the manifold has a flattened cross-sectional shape such as of a segment of a circle or an ellipse, and is positioned adjacent to the primary passage. The primary passage extends through a region where the secondary passage is divided into a plurality of secondary branches, and is located immediately in front of the shortest one of the sec- ondary branch. The primary passage is also branched into a plurality of primary branches, the shortest of which is dis- placed out of axial alignment with a central axis of the intake manifold. - 19 -
394198
Ishida Tokuzi
Yokoyama Hiroshi
Kirby Eades Gale Baker
Suzuki Jidosha Kogyo Kabushiki Kaisha
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