| 摘要 |
PURPOSE:To make an aeration quantity abundant so much in time of high load driving as well as to prevent fuel gas from thickening, by interconnecting a fuel passage to the upstream side of a Venturi tube in a gas feed Venturi of an LPG engine. CONSTITUTION:A hole 8 is installed in an upstream end of a Venturi 2 of a carburetor 1, which mixes gas to be fed out of a vaporizer 6 of an LPG engine into suction air, so as to be interconnected to a hole 4 installed in the narrowest part and a fuel passage 3 inside the Venturi. With this constitution, in time of normal driving, an air quantity from the hole 8 is so little whereby if air-fuel ratio adjustment 5 takes place under this condition in advance, dynamic pressure becomes high when a suction air quantity is abundant enough at high load so that a large quantity of air is led into the inside, thus an air-fuel mixture is prevented from thickening. |
