| 摘要 |
<p>A fuel supply system for injection carburetors includes an orifice, a constant flow rate control device, alnd a fuel supply source and is provided with a first fuel channel circulating fuel of a predetermined flow rate, a second fuel channel branching off from the first fuel channel between the orifice and the constant flow rate control device for injecting the fuel into a suction tube of the carburetor, an air flow rate detecting device capable of detecting a flow rate of air flowing through the suction tube, and a fuel ejection control device capable of metering the flow rate of fuel to be ejected so that a pressure difference with atmospheric pressure which is detected by the air flow rate detecting device is balanced with a fuel pressure difference between the upstream side and the downstream side of the orifice. The fuel supply system is simple in structure and can hold an air-fuel ratio of a gas mixture with a high degree of accuracy to a desired constant value, over the entire operation region, through a single fuel control unit. <IMAGE></p> |
