Method for producing a subassembly and subassembly

Patent metadata

Field	Value
Publication number	US-9482304-B2
Application number	US-201314413836-A
Country	US
Kind code	B2
Filing date	Jul 8, 2013
Priority date	Jul 9, 2012
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A subassembly and a method of producing a subassembly. The subassembly has a dividing body or separating body and at least one flow channel formed on the dividing body and extending along it with at least one flow path to influence a flow of a magneto-rheological fluid along the flow channel of the dividing body. The dividing body includes a magnetic field generation device for generating a magnetic field and a field closing device. At least the magnetic field generation device and the field closing device are filled with at least one solidifying medium using a placeholder which can be removed to form the three-dimensionally predefined flow channels on the dividing body.

First claim

The invention claimed is:

1. A method of producing a subassembly having a dividing body, the dividing body having:
at least one flow passage extending along the dividing body and defining at least one flow path in order to influence a flow of a magnetorheological fluid along the flow passage of the dividing body; and
at least one magnetic field generating device for generating a magnetic field and a field closing device;
the method comprising:
filling the magnetic field generating device and the field closing device with a solidifying medium, while using at least one placeholder for forming at least part of the flow passage, the at least one placeholder, upon the removal thereof, forming on the dividing body the at least one flow passage.

2. The method according to claim 1 , which comprises forming a connection with the solidifying medium hydraulically pressure-tight, forcing the magnetorheological fluid to flow via the flow passage.

3. The method according to claim 2 , which comprises surrounding a core with a coil holder, and winding an electric coil device being the magnetic field generating device onto the coil holder.

4. The method according to claim 3 , which comprises placing at least one dividing wall on the coil holder.

5. The method according to claim 4 , which comprises forming at least one insert from a stack with a first dividing template as the at least one placeholder, the at least one dividing wall, and at least one second dividing template as the placeholder.

6. The method according to claim 1 , which comprises forming at least one insert from the at least one placeholder.

7. The method according to claim 1 , which comprises introducing a core with a coil holder and an electric coil device and at least one insert into the field closing device.

8. The method according to claim 1 , wherein the filling step comprises encapsulating and/or overmolding with the solidifying medium, using defined pressure.

9. The method according to claim 8 , which comprises allowing the solidifying medium to cure following a casting operation and subsequently removing the at least one placeholder.

10. The method according to claim 1 , which comprises removing the at least one placeholder from the dividing body.

11. The method according to claim 10 , wherein the removing step comprises melting, dissolving or washing the placeholder out of the dividing body.

Assignees

• Inventus Eng Gmbh

Inventors

• Battlogg Stefan
• Kieber Michael

Classifications

• Y10T29/49075

  including permanent magnet or core · CPC title

• F16F9/3214

  of pistons (F16F9/0227 and F16F9/36 take precedence; throttling passages in or on piston body F16F9/3405) · CPC title

• H01F41/06

  Coil winding · CPC title

• F16F9/535 Primary

  Magnetorheological [MR] fluid dampers (springs comprising magnetorheological [MR] elastomers F16F1/361) · CPC title

• Y10T29/49826

  Assembling or joining · CPC title