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    • 9. 发明授权
    • Electromagnetic fuel injection valve, and method for assembling nozzle
assembly
    • 电磁燃油喷射阀及组装喷嘴组件的方法
    • US5713523A
    • 1998-02-03
    • US577929
    • 1995-12-22
    • Takuya Fujikawa
    • Takuya Fujikawa
    • F02M51/06F02M61/16B05B1/30
    • F02M51/0657F02M61/168
    • An electromagnetic fuel injection valve is provided, which allows the amount of lift to be adjusted and established following the assembly of the nozzle assembly so that it is suitable for high pressure cylinder injection of fuel and which also allows the amount of lift to be established with high precision. A method for assembling the nozzle assembly is also offered. This invention comprises a thin-walled skirt portion formed in a protruding manner at the nozzle holder, a valve seat that is introduced under pressure to the skirt portion, with the valve seat and the nozzle holder welded and joined at the skirt portion, and, preferably, the application of a load from the outside of the nozzle holder following welding to bring about the irreversible deformation of the nozzle holder and establish the final amount of lift.
    • 提供电磁燃料喷射阀,其允许在喷嘴组件的组装之后调节和建立升力量,使得其适合于高压气缸喷射燃料,并且还允许与 高精准度。 还提供了组装喷嘴组件的方法。 本发明包括在喷嘴保持器处以突出的方式形成的薄壁裙部,阀座,其在压力下引导到裙部,阀座和喷嘴保持器在裙部焊接并接合, 优选地,在焊接之后从喷嘴保持器的外部施加负载以引起喷嘴保持器的不可逆变形并建立最终的升程量。