| 摘要 |
A fuel injection nozzle for internal combustion engines having a cartridge filter provided with two groups of longitudinal grooves, disposed in a fuel conduit one of which groups of longitudinal grooves originates at one end of the filter while the other group originates at the opposite end of the filter. All longitudinal grooves terminate in a central section of the filter. The fuel conduit and the reduced diameter of the central section of the filter define an annular slit. The longitudinal grooves have a cross-section decreasing over the extent thereof to their termini, so that any excess and harmful amounts of fuel in the filter can be decreased, while maintaining the same external diameter of the filter for purposes of filter replacement in existing fuel injection nozzles.
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