发明申请
- 专利标题: Method for Producing Throttle Holes having a Low Cavitation Transmission Point
- 专利标题(中): 具有低气蚀传播点的油门孔的制造方法
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申请号: US13131139申请日: 2009-10-26
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公开(公告)号: US20110226344A1公开(公告)日: 2011-09-22
- 发明人: Stefan Schantz , Klaus Seelbach
- 申请人: Stefan Schantz , Klaus Seelbach
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 优先权: DE102008044096.5 20081127
- 国际申请: PCT/EP2009/064068 WO 20091026
- 主分类号: B23P11/00
- IPC分类号: B23P11/00
摘要:
A method for producing a throttle point, particularly in a channel of a valve piece of a fuel injector is disclosed. The following are performed: first, the outlet channel is created by machining Then, the throttle point is stamped by a stamping die inserted into a guide hole. The pre-stamped throttle point is electrical-discharge machined in such a way that said throttle point has an electrical-discharge machined inlet area and comprises a stamped outlet area, which lies before a continuous cross-section expansion of the outlet channel as viewed in the flow direction.
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