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Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit

A solenoid valve and electromagnetic technology, applied in the field of hydraulic reversing valves, can solve problems such as high cost of magnetic pole cores, and achieve the effects of prolonging processing time and saving time and cost

Inactive Publication Date: 2012-11-28
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the pole cores produced with conventional retrofitting techniques have to undergo costly additional machining

Method used

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  • Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit
  • Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit
  • Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit

Examples

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Embodiment Construction

[0019] figure 1 A hydraulic 4 / 3-way directional control valve with an electromagnetic actuating unit according to the invention is shown in longitudinal section. A preferred application of such a directional control valve is the adjustment of the position of a hydraulic camshaft adjuster.

[0020] The hydraulic directional valve consists of an electromagnetic actuation unit 01 and a valve section 02 . The valve section 02 is composed of a valve housing 04 and a control piston 05 combined. Valve housing 04 has an inlet connection P, two working connections A and B and an outlet connection T. FIG. The control piston 05 is arranged axially displaceable within the valve housing 04 . By suitably positioning the control piston 05 relative to the valve housing 04 , each of the working ports A and B can be connected either to the input port P or to the output port T. FIG. The working ports A, B are hydraulically connected via pressure medium lines (not shown) to pressure chambers ...

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PUM

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Abstract

The invention relates to an electromagnetic actuating unit (01) of a hydraulic control valve having an armature (18) disposed inside an armature chamber (17) in an axially displaceable manner, and a pole core (14) disposed in a recess (15), said pole core limiting the armature chamber (17) in a direction of movement of the armature (18). The electromagnetic actuating unit is characterized in thatthe geometry of the armature (18) serves to adjust the characteristic line of the electromagnetic actuating unit (01).

Description

technical field [0001] The invention relates to an electromagnetic actuating unit of a solenoid valve, in particular a hydraulic reversing valve, the actuating unit having an armature and a pole core, the armature being axially displaceable in an armature cavity Arranged and the pole core is arranged in the receptacle and delimits the armature chamber in the direction of movement of the armature. Background technique [0002] Such directional valves are used, for example, in internal combustion engines for controlling hydraulic camshaft adjusters. Hydraulic camshaft adjusters are sufficiently described in the prior art, so that no further explanation is necessary here. The directional valve consists of an electromagnetic actuation unit and a valve section. The valve section represents the hydraulic section of the directional control valve, wherein at least one inlet connection, at least one working connection and a tank connection are formed on the valve section. Certain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF01L2001/34426F01L1/344F16K31/0613Y10T29/49012
Inventor 克里斯托弗·罗斯约瑟夫·格罗舍尔
Owner SCHAEFFLER TECH AG & CO KG