发明授权
- 专利标题: Fuel injection nozzle for internal combustion engines
- 专利标题(中): 内燃机燃油喷嘴
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申请号: US90152申请日: 1987-07-17
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公开(公告)号: US4768719A公开(公告)日: 1988-09-06
- 发明人: Max Straubel , Ewald Eblen , Paul Fussner , Gunter Kapolke , Edgar Schneider , Klaus Wolf , Werner Wagner , Karl Hofmann
- 申请人: Max Straubel , Ewald Eblen , Paul Fussner , Gunter Kapolke , Edgar Schneider , Klaus Wolf , Werner Wagner , Karl Hofmann
- 申请人地址: DEX 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: DEX Stuttgart
- 优先权: DEX3541131 19851121; DEX3610658 19860329
- 主分类号: F02M61/16
- IPC分类号: F02M61/16 ; F02M45/08 ; F02M61/10 ; F02M61/20
摘要:
Fuel injection nozzle for internal combustion engines includes a first closing spring which acts continuously on the valve needle by means of a central pressure pin and, in addition, a second closing spring which acts continuously on the valve needle by means of a pressure piece after covering the distance of an initial stroke. The pressure piece is supported at the nozzle body by means of an intermediate bush during the initial stroke. The initial stroke is limited by means of the shoulders at the valve needle and the intermediate bush, whereas the total stroke is limited by means of the shoulders at the intermediate bush and the intermediate disk. Accordingly, the initial stroke can be adjusted very accurately to a desired magnitude merely by means of grinding the valve needle and does not change during the assembly of the injection nozzle.
公开/授权文献
- US5909611A Image forming apparatus 公开/授权日:1999-06-01
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