| 摘要 |
Valve needle, metering device, and method of calibrating a metering device A hollow valve needle (10) that provides a fluid passage (24) is provided for an injection valve (12). The valve needle (10) comprises fluid entrance openings (26) and fluid exit openings (28). Between these openings (26, 28) a cylindrical section, (36) is located for providing a close sliding fit of the valve needle in the valve cartridge (14). At the plunger end of the valve needle, a calibration means (32), e. g. a pin or a screw, can be inserted, and the free fluid path through the fluid exit openings (28) can be influenced in de 15 peadence of the insertion depth of the calibration means (32). Thereby, a calibration of the injection valve (12) is possible without further manipulation of the injection valve (12). |
