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Integral electromagnetic valve

A solenoid valve, integrated technology, applied in the direction of valve details, valve devices, valve housing structure, etc., can solve the problems of increasing fuel injection system assembly work, increasing manufacturing costs, etc., to reduce the burden of research and precision assembly, reduce The effect of manufacturing cost and compact structure

Inactive Publication Date: 2012-03-14
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the large number of components and the need for precise assembly, the assembly work of the entire fuel injection system is also increased
All of these will lead to an increase in the manufacturing cost of the entire fuel system

Method used

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  • Integral electromagnetic valve
  • Integral electromagnetic valve
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Embodiment Construction

[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0022] combine Figure 1-8 , an integral solenoid valve, which is mainly fastened by a valve body 1, an electromagnet housing 2, an electromagnet pad 3, an armature 4, a control valve stem 5, a plug 6, an electromagnet 7, an electromagnetic coil 8, and an armature Screw 9, return spring baffle plate 10, control valve rod return spring 11, return spring seat 12, washer 13 etc. are formed. The solenoid valve is a normally open valve, and the sealing cone surface of the control valve stem 5 is closely matched with the sealing cone hole of the valve body 1 to form the fuel inlet and return control cone surfaces. The armature 4 is connected with the control valve stem 5 through the armature fastening screw 9, so that the control valve stem 5 can move together with the armature 4 through the electromagnetic force of the electromagnet 7 on the armature 4, thereby closin...

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Abstract

The invention aims to provide an integral electromagnetic valve. The valve comprises a valve body, an electromagnet, an armature and a control valve rod, wherein the electromagnet is arranged in an electromagnet shell which is connected with the valve body; the control valve rod is arranged in the valve body; and the armature is connected with the control valve rod and the electromagnet respectively. Through the integral design, a fuel oil spraying system of a diesel engine can have more compact structure; the manufacturing cost of the electromagnetic valve in the production process can be reduced; the tolerance of the electromagnetic valve is prevented from being amplified in the production and assembling or a new assembling error is prevented from being introduced; the consistency between electromagnetic valve products and the consistency of the spraying characteristic of the fuel oil system are improved; the assembling, testing and calibrating work of the fuel oil spray control system can be reduced; and the burden of a fuel oil system manufacturer of researching and accurately assembling the electromagnet and the armature is relieved and the production cost and the manufacturing cost of the fuel oil system are reduced.

Description

technical field [0001] The invention relates to a valve, in particular to a valve for fuel injection of a diesel engine. Background technique [0002] With the increasingly stringent emission regulations and deteriorating climate environment, reducing emissions, reducing noise and vibration has become the main direction of diesel engine development. In order to meet the current national emission standards of National III and National IV, time-based electronically controlled fuel injection systems have been widely used, and are gradually replacing traditional mechanical fuel injection systems and positional electronically controlled fuel injection systems. [0003] In the timing electronically controlled fuel injection system, the solenoid valve with high response speed is one of its key components, which is responsible for controlling fuel injection. During the fuel injection process, the fuel injection timing is determined by the closing time of the solenoid valve, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F16K27/00
Inventor 田丙奇范立云文李明马修真
Owner HARBIN ENG UNIV
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