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Electromagnetic type normally-closed three-position and four-way reversing valve

A three-position four-way, electromagnetic technology, applied in the field of hydraulic systems, can solve the problems of large volume and large parts of the reversing valve accessories, and achieve the effects of compact structure, reduced volume and reliable sealing performance.

Inactive Publication Date: 2012-07-11
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the hydraulic system, the second slide valve of the conventional electromagnetic three-position four-way reversing valve is located on both sides of the three-position four-way valve. The up and down movement of the first spool valve, because there are second spool valves at both ends of the valve body, causes the accessory part of the whole reversing valve to be relatively large; Both the exhaust channel and the emptying channel are in the same plane, so that various pipes need to be arranged in the middle of the valve body, and the volume is relatively large.
As a result, there is currently no electromagnetic normally closed three-position four-way reversing valve with a diameter of 30-35mm that can work for a long time in a pressure environment greater than 30Mpa, the flow rate can meet more than 10L / min, and the diameter is between 30-35mm.

Method used

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  • Electromagnetic type normally-closed three-position and four-way reversing valve
  • Electromagnetic type normally-closed three-position and four-way reversing valve
  • Electromagnetic type normally-closed three-position and four-way reversing valve

Examples

Experimental program
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Effect test

Embodiment 1

[0035] see Figure 1 to Figure 3 , an electromagnetic normally closed three-position four-way reversing valve, comprising a valve body 5, a first spool valve 6, an overflow system 7 and an electromagnetic driver, the valve body is provided with a spool cavity 13, the first spool valve and the spool The cavity is adapted, and the valve body is also equipped with an empty flow channel. One end of the valve body is provided with an electromagnetic driver, the first plane where the input channel is located intersects the second plane where the output channel is located, and the first plane where the input channel 8 is located intersects the third plane where the emptying channel is located.

[0036] The electromagnetic driver includes an electromagnetic center rod 4, an electromagnetic coil, a return spring and a second slide valve 2. The upper and lower ends of the electromagnetic driver are provided with a first electromagnetic coil 1 and a second electromagnetic coil 3. The ele...

Embodiment 2

[0046] see Figure 4 to Figure 6 , an electromagnetic normally closed three-position four-way reversing valve, comprising a valve body 5, a first spool valve 6, an overflow system 7 and an electromagnetic driver, the valve body is provided with a spool cavity 13, the first spool valve and the spool The cavity is adapted, and the valve body is also equipped with an empty flow channel.

[0047] One end of the valve body is provided with an electromagnetic driver, the first plane where the input channel is located and the second plane where the output channel is located form an angle of 120°, the first plane where the input channel 8 is located and the third plane where the emptying channel is located At an angle of 120°.

[0048]The electromagnetic driver includes an electromagnetic center rod 4, an electromagnetic coil, a return spring and a second slide valve 2. The upper and lower ends of the electromagnetic driver are provided with a first electromagnetic coil 1 and a secon...

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Abstract

The invention relates to an electromagnetic type normally-closed three-position and four-way reversing valve, comprising a valve body, a first slide valve, an overflow system and an electromagnetic driver, wherein a valve core cavity is arranged in the valve body, the first slide valve adapts to the valve core cavity, and an evacuation flow channel is also arranged in the valve body. The electromagnetic type normally-closed three-position and four-way reversing valve is characterized in that one end of the valve body is also provided with the electromagnetic driver, a first plane with an input flow channel is perpendicular to a second plane with an output flow channel, and the first plane with the input flow channel is perpendicular to a third plane with the evacuation flow channel. The invention has the advantage of greatly reducing the volume of the middle of the reserving valve, avoiding the problem that more spaces at both ends of the reserving valve are occupied in the scheme of installing a second slide valves at both sides by adopting the mode of installing the electromagnetic driver at the single side, and being convenient for electricians to connect wires.

Description

technical field [0001] The invention belongs to the technical field of hydraulic systems, in particular to an electromagnetic normally closed three-position four-way reversing valve. Background technique [0002] At present, in the hydraulic system, the second slide valve of the conventional electromagnetic three-position four-way reversing valve is located on both sides of the three-position four-way valve. The up and down movement of the first spool valve, because there are second spool valves at both ends of the valve body, causes the accessory part of the whole reversing valve to be relatively large; Both the exhaust channel and the emptying channel are in the same plane, so various pipes need to be arranged in the middle of the valve body, and the volume is relatively large. As a result, there is currently no electromagnetic normally closed three-position four-way reversing valve with a diameter of 30-35mm that can work for a long time in a pressure environment greater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/065F16K27/00F16K31/06F15B13/02
Inventor 姜伟刘景超蒋世全马认琦李汉兴张玺亮
Owner CHINA NAT OFFSHORE OIL CORP