发明授权
US4704591A Electromagnetically actuable fuel injection valve and method for its manufacture 失效
电磁致动燃油喷射阀及其制造方法

  • 专利标题: Electromagnetically actuable fuel injection valve and method for its manufacture
  • 专利标题(中): 电磁致动燃油喷射阀及其制造方法
  • 申请号: US822520
    申请日: 1986-01-27
  • 公开(公告)号: US4704591A
    公开(公告)日: 1987-11-03
  • 发明人: Udo Hafner
  • 申请人: Udo Hafner
  • 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: DEX3507441 19850302
  • 主分类号: F02M51/06
  • IPC分类号: F02M51/06 F02M51/08 F02M61/08 H01F7/00
Electromagnetically actuable fuel injection valve and method for its
manufacture
摘要:
An electromagnetically actuable fuel injection valve, which serves to supply fuel to mixture-compressing internal combustion engines having externally supplied ignition. The fuel injection valve includes a base plate into which pole pieces having bent poles are inserted. Magnetic coils are fitted onto the pole pieces. A first permanent magnet is inserted between the poles and a second permanent magnet is disposed between the magnetic conductor elements disposed on the other end of the pole pieces. Beginning at the base plate, the magnetic coils and the pole pieces are provided with a sprayed-on plastic jacket. The plastic jacket is inserted together with the base plate into an internal housing bore of a valve housing. A valve group is inserted into an outlet pipe of the valve housing which has an armature oriented toward the poles and joined with a valve needle which on its other end has a closing head that cooperates with a valve seat on a valve seat body and can be raised from the valve seat in the fuel flow direction.
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