| 摘要 |
PROBLEM TO BE SOLVED: To achieve dry coil of a solenoid assembly 8 of a solenoid valve 2 for an injector performing fuel injection to a diesel engine. SOLUTION: The solenoid assembly 8 of the solenoid valve 2 is welded and fixed to an injector body 9 by all-round laser welding. Due to this, a fixing method of the solenoid assembly 8 with respect to the injector body 9 is simplified, and moreover, a space between an outer peripheral part of the solenoid assembly 8 and an inner peripheral part of the injector body 9 is hermetically sealed. This makes it possible to securely seal a space between a communication chamber into which leak fuel is flowed and a coil storing part 49 for storing a solenoid coil 4. Therefore, since dry coil of the solenoid assembly 8 can be achieved, reliability of the solenoid coil 4 can be improved, compared to conventional wet coil, and in addition, a seal structure of fuel can be simplified. COPYRIGHT: (C)2006,JPO&NCIPI
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