| 摘要 |
<p>The invention relates to a system for metered supply to a combustion engine (2) of a fuel which is gaseous in ambient conditions, provided with a container (3) for storing the fuel in liquid form, a mixing device (5) arranged in an air intake channel (4) of the engine (2), a fuel supply line (6) connecting the container (3) to the mixing device (5), and a device (7) arranged in the fuel supply line (6) for evaporating the fuel and regulating the pressure thereof. This evaporating and pressure regulating device (7) comprises an evaporation space (40) with a primary intake aperture (41) closable by a controllable valve (42) and an outlet aperture (47,48,49), wherein the valve (42) is controlled by an underpressure prevailing in the air intake channel (4) of the engine (2). The system further comprises an adjustable throttle valve arranged between the evaporating and pressure regulating device (7) and the mixing device (5), which throttle valve is electronically controllable and connected for receiving signals from an electronic engine control unit (8). The evaporating and pressure regulating device (7) further has electronically controllable means for supplying an additional amount of fuel to the mixing device (5). The invention also relates to an evaporating and pressure regulating device (7) for use in such a system (1). <IMAGE></p> |
