FIELD: engines and pumps.
SUBSTANCE: proposed fuel valve (50) for injection of liquid fuel into the combustion chamber of a two-stroke internal combustion engine (ICE) with turbocharging and compression ignition, comprising elongated valve body (52) and nozzle (54) with closed tip (59), channel (55) and injection holes (56). Fuel valve contains fuel inlet (53) for connection to a source of liquid fuel under pressure and axially movable needle (61) mounted slidably in longitudinal hole (64) in valve body (52) with a gap between needle (61) and needle hole (64), while needle (61) of the valve rests on seat (69) in the closed position. Seat (69) is located between fuel chamber (58) and outlet (68), with outlet (68) connected to channel (55) in nozzle (54), and fuel chamber (58) connected to fuel inlet (53). Fuel valve contains opening (70) for liquid lubricant to be connected to a source of liquid lubricant under pressure, as well as channel for supplying liquid lubricant (47) extending through first position (P1) into the gap along the length of hole (64) for the needle. Fuel valve has inlet (67) for the pilot liquid to connect to the source of the pilot liquid under pressure, the channel of pilot liquid (66) passes from inlet (67) for the pilot liquid into fuel chamber (58) or into the gap in the second position (P2) along the length of needle hole (64), which is closer to fuel chamber (58) than the first position (P1).
EFFECT: invention can be used in ICE fuel feed systems.
18 cl, 16 dwg
