| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a valve gear capable of fitting the valve gear by joining while increasing the sealability of a valve. SOLUTION: The valve gear comprises a valve body 20 having a valve seat 21, a nozzle needle 30 allowed to abut on and apart from the valve seat 21, and a holder 10 (magnetic pipe 11 for detail) joined to the valve body 20. In this method of manufacturing the valve gear, the valve body 20 and the magnetic pipe 11 are prepared and the valve body 20 is joined to the magnetic pipe 11 with the valve body 20 inserted into the magnetic pipe 11. The method comprises a welding step for welding both the valve body 20 and the magnetic pipe 11 while pressing the valve body 20 and the magnetic pipe 11. COPYRIGHT: (C)2005,JPO&NCIPI
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