| 摘要 |
A fuel injection valve having a valve body (3), in which a bore (7) with a pistonlike valve member (10) disposed in it is embodied, which valve member (10) is longitudinally displaceably in the bore (7) counter to a closing force and by its longitudinal motion controls at least one injection opening (22), through which fuel can be injected into the combustion chamber of the engine. A valve holding body (1) is braced axially against the valve body (3). An inlet conduit (12), which carries fuel at high pressure, extends through the valve holding body (1) and its contact face, embodied as a high-pressure sealing face (30), on the valve body (3) as far as the injection openings (22). The bracing of the valve holding body (1) against the valve body (3) is effected by means of a lock nut (5), which grips the valve body (3) and with a female thread (44) engages a male thread (42) embodied on the valve holding body (1). The contact flank (52) of the male thread (42) and the contact flank (50) of the female thread (44), which are pressed against one another by the bracing, are embodied perpendicular to the longitudinal axis (8) of the male thread (42), so that upon the bracing of the lock nut (5), no radial forces oriented outward against the lock nut (5) result (FIG. 1).
|
