FIELD: engines and pumps.
SUBSTANCE: fuel valve (1) is proposed for injecting fuel into the combustion chamber of a two-stroke ICE with self-ignition. The valve has a needle (20) that is resiliently biased toward the valve seat (22). The effective pressure surface, that ensures that the valve needle is pushed in the opening direction under the pressure of the fuel, is significantly increased when the valve needle (20) is lifted from the seat (22). A further effective pressure surface (29) is provided on the needle (20). The effective pressure surface (29) creates a force pushing the needle (20) toward the valve seat (22) when the effective surface (29) is exposed to the fuel pressure.
EFFECT: efficiency enhancement.
11 cl, 6 dwg
