Control valve assembly

A technology for controlling valves and components, applied in engine components, machines/engines, charging systems, etc., can solve the problems of large spring force of valve components, increased cost of solenoid valves, and increased driving requirements, and achieve volume reduction and driving requirements. The effect of reducing, reducing the electromagnetic force requirement
CN113550852APending Publication Date: 2021-10-26钧风电控科技泰州有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
钧风电控科技泰州有限责任公司
Publication Date
2021-10-26

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Abstract

The invention relates to the technical field of high-pressure fuel injection valves, in particular to a control valve assembly. According to the technical scheme, the check valve assembly comprises a valve body, the valve body is provided with a valve body middle hole, the upper end of the valve body middle hole is a seat face, the lower end of the valve body and the bottom of the valve body middle hole are provided with a circulation groove communicated with the outside of the valve body, a valve rod is installed in the valve body middle hole, an annular groove used for fluid circulation is formed in the middle of the outer side of the valve rod in the vertical direction, the upper portion and the lower portion, located in the annular groove, of the valve rod are an upper end cylindrical face and a lower end cylindrical face respectively, and an upper connecting face is formed between the upper end cylindrical face and the annular groove. The control valve assembly has the advantages that the electromagnetic valve cost is reduced, the size is reduced, the driving requirement is reduced, the overall durability is higher during use, the service life is longer, the use safety is more reliable, and the more reliable use stability can be achieved.
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Description

technical field

[0001] The invention relates to the technical field of high-pressure fuel injection valves, in particular to a control valve assembly. Background technique

[0002] In today's world, powertrain pollutant emissions have become the focus of the international community. With the increasingly stringent emission regulations, the fuel pressure of electronically controlled fuel injection systems has gradually increased. In order to realize the sealing and precise control of ultra-high pressure fuel, a higher electromagnetic force is required, and the cost of the corresponding magnetic material is higher and the installation space requirement is larger. Ball valves, plane valves and other valve assembly structures commonly used today all face this problem. This leads to a sharp increase in the cost of the electronically controlled fuel injection system and poor installation adaptability.

[0003] In the prior art, the sealing parts such as steel ball, valve needle ...

Claims

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