基本信息:
- 专利标题： Fuel injection valve
- 专利标题（中）：燃油喷射阀
- 申请号：JP2010098063 申请日：2010-04-21
- 公开(公告)号：JP2011226417A 公开(公告)日：2011-11-10
- 发明人： HABA YUKI
- 申请人： Toyota Motor Corp , トヨタ自動車株式会社
- 专利权人： Toyota Motor Corp,トヨタ自動車株式会社
- 当前专利权人： Toyota Motor Corp,トヨタ自動車株式会社
- 优先权： JP2010098063 2010-04-21
- 主分类号： F02M61/18
- IPC分类号： F02M61/18 ; F02M61/10
摘要：
PROBLEM TO BE SOLVED: To cause fuel cavitation, even during needle lift from the initial stage of fuel injection in which the amount of needle lift is small.SOLUTION: The fuel injection valve 1 includes: a needle 2 which has a seat part 2a; and a nozzle body 3 including the needle 2 so as to be slidable, a seat position 3a to seat the seat part 2a, and a sack chamber 4 provided at the end of the nozzle body 3. The fuel injection valve 1 includes a communication hole 5 which unevenly distributes area of a fuel channel formed between the needle 2 and the nozzle body 3 in the downstream of the seat part 2a to induce oscillation of the needle 2 lifted, when the seat part 2a leaves from the seat position 3a. Force to be received by the needle 2 from fuel becomes unbalanced immediately after the start of lift, so that the needle 2 is lifted with oscillation. The needle 2 oscillates to bring the needle 2 close to an inner wall of the nozzle body 3, thereby causing cavitation there.
摘要（中）：
要解决的问题：即使在从提升量小的燃料喷射的初始阶段提针期间，也会引起燃料气蚀。 燃料喷射阀1包括：具有座部2a的针2; 以及具有可滑动的针2的喷嘴体3，座椅部2a的座椅位置3a，以及设置在喷嘴体3的端部的袋室4.燃料喷射阀1包括连通孔 5，当座椅部件2a从座椅位置3a离开时，在座部件2a的下游侧不均匀地分布形成在针2和喷嘴体3之间的燃料通道的面积，以引起针头2的振动。 针2从燃料接收的力在起动后立即不平衡，从而使针2振动起来。 针2振动，使针2靠近喷嘴体3的内壁，从而在那里引起气蚀。 版权所有（C）2012，JPO＆INPIT