Invention Grant
US08350652B2 Electromagnetic actuating unit for a hydraulic directional control valve and method for the assembly thereof 有权
一种用于液压方向控制阀的电磁致动单元及其组装方法

  • Patent Title: Electromagnetic actuating unit for a hydraulic directional control valve and method for the assembly thereof
  • Patent Title (中): 一种用于液压方向控制阀的电磁致动单元及其组装方法
  • Application No.: US13130612
    Application Date: 2009-10-19
  • Publication No.: US08350652B2
    Publication Date: 2013-01-08
  • Inventor: Jens HoppeStefan Konias
  • Applicant: Jens HoppeStefan Konias
  • Applicant Address: DE Herzogenaurach
  • Assignee: Schaeffler Technologies AG & Co. KG
  • Current Assignee: Schaeffler Technologies AG & Co. KG
  • Current Assignee Address: DE Herzogenaurach
  • Agency: Lucas & Mercanti, LLP
  • Agent Klaus P. Stoffel
  • Priority: DE102008059012 20081126
  • International Application: PCT/EP2009/063646 WO 20091019
  • International Announcement: WO2010/060690 WO 20100603
  • Main IPC: H01F3/00
  • IPC: H01F3/00
Electromagnetic actuating unit for a hydraulic directional control valve and method for the assembly thereof
Abstract:
An electromagnetic actuating unit for a hydraulic directional control valve and a method for the assembly thereof. The actuating unit has a coil for generating a magnetic field, a yoke unit with a yoke and a yoke plate, and a pole core unit with a pole core and a housing for conducting a magnetic flux, and an armature unit which is arranged in the magnetic field of the coil and has an armature and a pressure pin as an actuator. The armature unit can be displaced in the direction of the longitudinal axis thereof in a first bearing point in the yoke unit and in a second bearing point in the pole core unit. At least one of the hearing points can be displaced in the radial direction during assembly of the actuating unit and can be fixed after a coaxial orientation of both bearing points.
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