Charge forming device for gas fueled engines.

摘要

The present invention concerns a charge forming device of the venturi-type for gas fueled engines comprising a bleed air circuit including a bleed air control valve for adjusting the air fuel ratio k supplied to the engine. A memory means is provided for storing the aperture of the bleed air control valve corresponding to a prescribed air fuel ratio and a control unit is provided for controlling the bleed air control valve in response to the aperture. Moreover, an auxiliary air passage with an auxiliary air control valve disposed therein is provided in parallel with said bleed air control valve.