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Electromagnetic actuating unit

An executive unit and electromagnetic technology, applied in the direction of electromagnets, electrical components, electromagnets with armatures, etc., can solve the problems of high cost, broken sealing ring, high precision, etc., and achieve the effect of simple method and improved sealing function

Inactive Publication Date: 2010-09-22
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This embodiment presents the danger that the sealing ring breaks off during insertion of the coil body into the insertion opening, so that the sealing function of the sealing element is no longer guaranteed
In addition, the sealing surfaces on the housing and the closing element have to be machined cost-intensively and with high precision
There is therefore the risk that intruding media from the outside, such as oil or water, can penetrate between the housing and the closing element into the interior of the solenoid actuator and damage the solenoid actuator, for example, causing a short circuit

Method used

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Examples

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Embodiment Construction

[0040] Figure 1 and image 3 An embodiment of the electromagnetic actuator unit 2 according to the invention is shown, for example, of a hydraulic valve 1 embodied as a 3 / 2 directional switching valve. It is also conceivable that the actuating unit 2 according to the invention can be used for other on-off valves or other hydraulic valves 1 , for example 4 / 3 or 3 / 2 directional proportional valves.

[0041] The hydraulic valve 1 has a solenoid actuator unit 2 and a valve section 3 .

[0042] When using a camshaft adjuster, the invention can be used not only on an in-line valve mounted separately from the camshaft adjuster, for example on a cylinder head or cylinder head cover, but also on a central valve. If used in a central valve, the valve section 3 is arranged separately from the solenoid actuator unit 2 and is arranged coaxially with the camshaft or the inner rotor of the camshaft adjuster. In this case, the electromagnetic actuator unit 2 is arranged axially relative to ...

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Abstract

The invention relates to an electromagnetic actuating unit (2) for a hydraulic valve (1) with a housing (14) and a closure element (4b), wherein the housing (14) at least partially delimits the electromagnetic actuating unit (2) in relation to the surroundings, wherein the closure element (4b) is arranged within an introductory opening (14a) of the housing (14), and wherein a sealing means receptacle (5) is formed on a boundary surface between the housing (14) and the closure element (4b), wherein, furthermore, at least one first channel (27) is provided, said channel both leading into the sealing means receptacle (5) and being designed such that it is open towards the surroundings of the actuating unit (2), and wherein a sealing element (6) is arranged in the sealing means receptacle (5), which sealing element has been placed into the sealing means receptacle via the first channel (27).

Description

technical field [0001] The invention relates to an electromagnetic actuating unit for a hydraulic valve, the electromagnetic actuating unit having a housing and a closing element, wherein the housing at least partially delimits the electromagnetic actuating unit with respect to the environment, wherein the closing element is arranged in an insert of the housing In the mouth, and wherein a sealing medium receptacle is formed on the boundary surface between the housing and the closure element. Furthermore, the invention also relates to a method for producing such an electromagnetic actuator. Background technique [0002] Such hydraulic valves, for example proportional directional valves or switching valves, are arranged, for example, in internal combustion engines and are used there, for example, for the control of hydraulic camshaft adjusters or switchable cam followers. The hydraulic valve consists of an electromagnetic actuator and a valve section. The valve section has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06H01F7/128
CPCH01F7/08F16K31/0634H01F7/128F01L2001/34426F01L1/14F01L1/18F01L2820/031Y10T29/49002
Inventor 赫尔伯特·斯托克尔彼得·斯特曼延斯·霍佩安德烈亚斯·屈夫纳
Owner SCHAEFFLER TECH AG & CO KG
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