Invention Grant
- Patent Title: Electromagnetic actuating device and method for manufacturing an electromagnetic actuating device
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Application No.: US17034916Application Date: 2020-09-28
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Publication No.: US11562842B2Publication Date: 2023-01-24
- Inventor: Norbert Belzner
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Norton Rose Fulbright US LLP
- Agent Gerard Messina
- Priority: DEDE102019219059.6 20191206
- Main IPC: F16K31/06
- IPC: F16K31/06 ; H01F7/08 ; F16C33/20 ; F16C17/02 ; F16C33/12

Abstract:
An electromagnetic actuating device. The device includes an electromagnetic coil including a central recess extending in an axial direction, a cylindrical pole tube inserted into the central recess and provided with a magnetic separation point, an armature situated displaceably in the pole tube, the armature being movable by an actuation of the electromagnetic coil, the armature being mounted in the pole tube in a sleeve-shaped bearing foil inserted into the pole tube, the bearing foil including an inner side facing toward the armature and used as a sliding surface and an outer side facing toward the cylindrical pole tube. It is provided that the bearing foil is coated at least on the inner side using a first layer made of perfluoroalkoxy polymer. A manufacturing method for such an electromagnetic actuating device is also described.
Public/Granted literature
- US20210172544A1 ELECTROMAGNETIC ACTUATING DEVICE AND METHOD FOR MANUFACTURING AN ELECTROMAGNETIC ACTUATING DEVICE Public/Granted day:2021-06-10
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