| 摘要 |
PCT No. PCT/DE91/00469 Sec. 371 Date Feb. 19, 1992 Sec. 102(e) Date Feb. 19, 1992 PCT Filed Jun. 4, 1991 PCT Pub. No. WO91/19900 PCT Pub. Date Dec. 26, 1991.A fuel injection valve including a pan-shaped protective cap having a radially outwardly extending recess which, together with the fuel injection valve, forms a gap which is so narrow that it exerts a capillary effect on the fuel so that, when the internal combustion engine is shut down, the high boiling point constituents of the fuel are deposited at the radial outer edge of the gap, because of the capillary effect, and the injection openings remain free from deposits. The protective cap of the invention has at least three protrusions formed from its bottom and protruding in the direction of the fuel injection valve to a predetermined axial distance, the protrusions of the protective cap being in contact with the orifice plate of the fuel injection valve, forming an axial gap in a simple manner between the bottom and the orifice plate. The protective cap can be used with fuel injection valves of various types.
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