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Electromagnetic with a magnet armature

An electromagnetic armature and electromagnet technology, which is applied in the field of electromagnets, can solve problems affecting the movement of the electromagnetic armature, and achieve the effect of frictionless positioning

Inactive Publication Date: 2006-08-16
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantage is that the mechanical positioning mechanism may affect the movement of the electromagnetic armature

Method used

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  • Electromagnetic with a magnet armature
  • Electromagnetic with a magnet armature
  • Electromagnetic with a magnet armature

Examples

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Embodiment Construction

[0019] figure 1 A pressure control valve known from the prior art is shown, which can be used in a fuel injection system of an internal combustion engine to regulate the pressure in the high-pressure fuel accumulator as a function of the load situation of the internal combustion engine. The pressure control valve has a flange area 12 for connection to a high-pressure fuel pump or a high-pressure fuel accumulator. The valve block 13 , which is arranged in the flange region 12 of the pressure regulating valve, has a fuel inlet channel 8 connected to the high-pressure side, which opens with one end into the valve seat 7 of the valve block 13 . The side opening 9 of the valve block 13 is connected in a manner not shown in detail to the fuel return channel. An electromagnet controls the opening and closing of the pressure regulator valve. as from figure 1 As can be seen in , the solenoid has a substantially cylindrical solenoid core 2 in plan view, which simultaneously forms the...

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Abstract

The invention relates to an electromagnet with a magnet armature, especially for use in an electromagnetic valve, which has a magnet coil (1), a magnet core (2) which passes through the magnet coil (1) and which has at least one pole face (22); a magnet armature (3) which is arranged in such a way as to be vertically displaceable in relation to the at least one pole face (22) of the magnet core (2) and which has an armature plate (31) that faces towards the pole face (22); and an armature pin (32) which projects from the armature plate (31) and is mounted in such a way that it can slide and rotate; and alignment means, which are configured on the electromagnet and / or the magnet armature and which effect the alignment of the armature plate (31) to a predetermined rotation position. The invention provides that the alignment means take the form of at least one first recess (33) which is radially offset from the armature pin (32) and which is configured in the armature plate (31), and at least one second recess (27) which is situated in the at least one pole face (22) of the magnet core (2) and which is associated with the first recess (33). When the magnet coil (1) is subjected to a current, said second recess magnetically interacts with the first recess (33) in such a way that the armature plate (31) is aligned to the predetermined rotation position.

Description

technical field [0001] The invention relates to an electromagnet with an electromagnetic armature, especially an electromagnet used in an electromagnetic valve. The invention also relates to an electromagnetic valve, especially an electromagnetic valve used in a fuel injection device. Background technique [0002] Electromagnets with electromagnetic armatures are known for use in solenoid valves of pressure regulating valves of injection systems in internal combustion engines. Such a solenoid valve has electrical connecting elements which, starting from the side of the solenoid armature facing away from the electromagnet, pass through a recess in the armature plate and are brought into contact with the solenoid coil. In order to avoid contact between the connecting element and the hollow inner wall of the armature plate when the electromagnet is operated, and affect the movement of the armature plate due to friction, the existing electromagnet has a mechanical positioning me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/16H01F7/14H01F7/06
CPCH01F7/1623F02M63/0021H01F7/14H01F7/1638F02M63/0052
Inventor 赫尔曼·科赫-格勒布尔赖纳·施特尔米歇勒·德·科斯莫妮古拉·帕库奇彼得·沃萨赫洛
Owner ROBERT BOSCH GMBH
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