摘要 |
In already known fuel injection valves, elements exposed to wear, such as armature and core, are coated with wear-resistant layers made for example of chromium, molybdenum or nickel. The disclosed valve has a core (2) with a wear-resistant layer (65') whose thickness (x) at least in the direct impact area (a, a') is greater than the thickness (y) of a layer (65) on the opposite armature (27). This valve is particularly suitable for fuel injection systems of mixture-compressing, spark ignited internal combustion engines.
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申请人 |
ROBERT BOSCH GMBH, 70469 STUTTGART, DE |
发明人 |
GESK, MARKUS, 76307 KARLSBAD, DE;KEIM, NORBERT, 74369 LOECHGAU, DE;STILLING, JOACHIM, 70734 FELLBACH, DE |