Electromagnetic control valve

A technology of electromagnetic control valve and electromagnetic coil, applied in valve details, valve device, valve operation/release device, etc., can solve the problems of complex assembly process, many parts and low precision, achieve simple assembly process and improve assembly Accuracy, the effect of reducing the number of assemblies

Inactive Publication Date: 2014-12-10
ANHUI HUANMING FINE CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electromagnetic control valve currently on the market is mainly composed of a valve sleeve, a valve core arranged inside the valve sleeve, and an electromagnetic coil part connected with the valve sleeve to provide a magnetic field for the valve core to make the valve core reciprocate; but the existing The electromagnetic coil part has problems such as complex structure, many parts, complicated assembly process, low precision, and poor wear resistance.

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 , figure 2 As shown, an electromagnetic control valve includes a valve body 1 and an electromagnetic coil part 3 connected to the valve body 1, wherein the electromagnetic coil part 3 is mainly composed of a housing 31, a coil 32 arranged inside the housing 31, and a coil 32 arranged on the coil On the inner peripheral side of 32, a tubular yoke 33 for forming a magnetic circuit and a plunger 34 arranged inside the yoke 33 are composed; the yoke 33 is composed of a front yoke 331, a rear yoke 332, and a The yoke retaining ring 333 between the yoke 331 and the rear yoke 332 is composed of the front yoke 331, the yoke retaining ring 333 and the rear yoke 332 as a whole by welding; the yoke 33 is made of soft magnetic material , a magnetic circuit is formed when the coil 32 is energized. In order to make the yoke 33 and the valve core 13 cooper...

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Abstract

The invention discloses an electromagnetic control valve. The electromagnet control valve comprises a valve body and an electromagnetic coil portion connected with the valve body. The electromagnetic coil portion comprises a plunger. The valve body is composed of a valve sleeve, a spring, a valve element and an ejector rod. An oil inlet is formed in the end of the valve sleeve, the spring, the valve element and the ejector rod are sequentially arranged in the valve sleeve through the oil inlet, the valve element and the ejector rod are integrally formed, an oil outlet and an oil return opening are formed in the lateral wall of the valve sleeve, and a protrusion which is matched with the oil outlet and extends outwards in the radial direction is arranged on the outer side of the valve element. The electromagnetic control valve is simple in structure; due to the fact that the valve element and the ejector rod are integrally formed, the element assembly number is reduced, the assembly technology is made to be simple and the assembly precision is improved; in addition, abrasive resistance of the electromagnetic control valve is good.

Description

[0001] technical field [0002] The invention relates to an electromagnetic control valve. [0003] Background technique [0004] The engine VVT ​​system is widely used in automobiles. As the control part of the executive system, the electromagnetic control valve is the most important part. It controls the lubricating oil channel and flow to the phaser according to the instructions issued by the ECU, so as to precisely control the rotation angle of the phaser. Solenoid control valve is a kind of precise component with many components and high matching requirements. Its processing precision and assembly process directly affect the reliability and accuracy of solenoid control valve and even the entire VVT ​​system. The electromagnetic control valve currently on the market is mainly composed of a valve sleeve, a valve core arranged inside the valve sleeve, and an electromagnetic coil part connected with the valve sleeve to provide a magnetic field for the valve core to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06B01D35/04
CPCF16K31/0624B01D35/046
Inventor 王东来吴章进杨理尹伟
Owner ANHUI HUANMING FINE CONTROL
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