| 摘要 |
PURPOSE:To securely eliminate bubbles in an acceleration fuel reservoir chamber while supply fuel amount suited to the magnitude of acceleration by communicating said acceleration fuel reservoir chamber to a cylinder of a piston upper part, and providing a plurality of orifices in series in said communication path. CONSTITUTION:In ordinary operation, acceleration fuel is supplied from a fuel discharge port 3 to an air supply cylinder 1 via an outlet check ball 8 by making use of lowering of a piston 4 interlocked with a throttle valve 2. Moreover, deceleration fuel is guided to an acceleration fuel reservoir chamber 10 via an inlet check ball 9 by making use of the elevation of the piston 4. Thereupon, when the engine is restarted after the engine high speed operation bubbles produced in said chamber 10 are removed from an inlet side orifice 6 under the piston 4 to the outside of the cylinder via a preparation chamber 7 and an outlet side throttle 5. Furthermore, in ordinary operation acceleration, the fuel in said chamber 10 is partially allowed to leak via said orifices 6, 5, and returned to the float chamber 12 through a communication hole 11. |
