FIELD: engines and pumps.
SUBSTANCE: method for operating an engine comprising a throttle valve opening controlling the air flow into an engine inlet manifold depending on the pressure drop in the inside-opening nozzle for gaseous fuel exceeding the threshold pressure value. The pressure difference is the difference between the pressure of the gaseous fuel in the nozzle and the inlet manifold vacuum. Since the increased vacuum in the inlet manifold can prevent rapid opening of the nozzle valve (needle disengagement from nozzle seat), the vacuum in intake manifold is reduced by opening of throttle valve at an engine start.
EFFECT: reduced probability of engine start delay, it is also possible to reduce opening voltage supplied to the nozzle solenoid valve.
12 cl, 8 dwg
