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Pilot-operated electromagnetic valve

A pilot-operated solenoid valve and pilot valve technology, applied in the field of control valves, can solve problems such as product reliability decline, poor product manufacturability, and complicated flow channels, and achieve the effects of simple processing and assembly, guaranteed performance, and strong manufacturability

Active Publication Date: 2017-12-26
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this structure, the vertical and horizontal holes and the circumferential grooves of the outer circle are processed by the valve body parts, the product manufacturability is not good and the designed flow path is complicated, and the product reliability is reduced

Method used

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  • Pilot-operated electromagnetic valve
  • Pilot-operated electromagnetic valve
  • Pilot-operated electromagnetic valve

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, further detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0047] Figure 3A and Figure 3B It is a schematic diagram of the structure of a pilot solenoid valve when it is closed and opened respectively for the present invention, Figure 4 for Figure 3A Schematic diagram of the pilot valve body of the medium pilot solenoid valve, Figure 5 for Figure 3A Schematic diagram of the structure of the ring-shaped main spool of the pilot solenoid valve, Image 6 for Figure 3A Schematic diagram of the main valve body of the medium pilot solenoid valve.

[0048] like Figure 3A , Figure 3B , Figure 4 , Figure 5 and Image 6 shown. The pilot solenoid valve includes a main valve body part 1 , a pilot valve body part 2 and a pilot valve driving part 3 .

[0049] The main valve body part 1 ...

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Abstract

The invention relates to the technical field of control valves and particularly discloses a pilot-operated electromagnetic valve. The pilot-operated electromagnetic valve comprises a main valve body component, a pilot valve body component and a pilot valve drive component, wherein the main valve body component comprises a main valve body with a main valve cavity, and a main valve port and a main valve element are arranged in the main valve cavity; the pilot valve body component comprises a pilot valve body with a pilot valve cavity; a pilot valve port is formed in the pilot valve cavity; and the pilot valve cavity communicates with the main valve cavity. The pilot-operated electromagnetic valve is characterized in that the pilot valve body component further comprises a connecting pipe portion which is provided with a pilot valve channel, the pilot valve port communicates with a main valve outlet through the pilot valve channel, and the main valve element is an annular valve element which is arranged on the connecting pipe portion in a sleeving mode and is capable of sliding in the axial direction to control opening or closing of the main valve port. The pilot-operated electromagnetic valve provided by the invention, the travel of the main valve element is not restrained by the travel of a pilot valve element, and the product structure is simplified.

Description

technical field [0001] The invention relates to the technical field of control valves, in particular to a pilot solenoid valve. Background technique [0002] Pilot solenoid valve products are widely used, and are generally used to control the opening or closing of large flow media. figure 1 It is a structural schematic diagram of a prior art pilot solenoid valve. [0003] The pilot solenoid valve includes a valve body part 100 and a pilot valve part 200 . An inlet channel 201 and an outlet channel 202 are welded on the body of the valve body part 100 . The pilot valve component 200 includes a sleeve 206 , a moving iron core 204 and a static iron core 205 arranged in the sleeve 206 , and a pilot valve core 203 is arranged at the front end of the moving iron core 204 . The valve body part 100 and the pilot valve part 200 are hermetically welded. The piston member 103 is slidably disposed in the valve cavity. [0004] When the electromagnetic coil is in the de-energized st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/32F16K31/06
CPCF16K1/32F16K31/0655F16K31/406
Inventor 不公告发明人
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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