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Hydrogen injection proportional solenoid valve

A proportional solenoid valve and hydrogen supply technology, applied in the direction of lift valve, circuit, slide valve, etc., can solve the problems of easy leakage, poor sealing, complex processing, etc., and achieve the effect of avoiding leakage, reducing outlet pressure and increasing hydrogen flow rate

Pending Publication Date: 2021-01-08
无锡伟博汽车科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the proportional solenoid valve for hydrogen injection mainly relies on imports, and most proportional solenoid valves adjust the flow cross section through irregular contact surfaces. Leakage is more likely to occur, and the pole shoe and valve sleeve are processed in one piece, which is not conducive to inner hole grinding, poor precision, high cost of dimensional inspection and maintenance

Method used

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  • Hydrogen injection proportional solenoid valve
  • Hydrogen injection proportional solenoid valve
  • Hydrogen injection proportional solenoid valve

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specific Embodiment approach

[0028] Specific implementation of the present invention: the hydrogen injection valve is a proportional flow valve, the maximum stroke of the moving iron core 9 is 2mm, the lower part of the housing 1 is press-fitted with the valve seat 11, the upper part of the housing 1 is press-fitted with the pole piece 4, and the lower end surface of the inner hole of the housing 1 Slotted O-ring seal, valve seat 11 is evenly distributed with four circulation holes along the axis, valve seat 11 and sliding bearing 2 12 are press-fitted, sliding bearing 2 12 is evenly distributed with four triangular flow channel holes 12.1 along the axis, The valve seat 11 is slotted for O-rings, the slot inside the pole shoe 4 is press-fitted with the spring seat 5, the head of the pole shoe 4 is a wedge-shaped structure, and there are two round holes on the pole shoe 4 for the pin 7. 4 and the spring seat 5 both have O-ring grooves, one end of the spring 6 is pressed on the spring seat 5, and the other e...

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Abstract

The invention discloses a hydrogen injection proportional solenoid valve comprising a shell. A coil is installed in the shell, and a coil framework is arranged on the outer side face of the coil; a pole shoe is arranged in the coil, and a spring seat is installed in the pole shoe; a spring is installed below the spring seat, and an injection molding connector covering the pole shoe is clamped on the upper face of the shell; a contact pin is inserted into the injection molding connector, and the other end of the contact pin penetrates through the pole shoe, and is in contact with the coil; a movable iron core is inserted into a through hole, and the other end of the spring is connected with the movable iron core; the lower end of the movable iron core is sleeved with a valve seat, and a sealing gasket is embedded into the lower end face of the movable iron core; a sealing base is inserted into the lower end of the valve seat; the sealing gasket is in contact with the sealing base, and ahydrogen nozzle is installed at the lower end of the sealing base; and a hydrogen inlet is formed in the side face of the valve seat in a communicating mode. The hydrogen injection proportional solenoid valve has the advantages of good sealing performance and capability of considering high, medium and low loads.

Description

technical field [0001] The invention relates to the technical field of proportional solenoid valves, in particular to a proportional solenoid valve for hydrogen supply. Background technique [0002] At present, hydrogen injection proportional solenoid valves mainly rely on imports. Most proportional solenoid valves adjust the flow cross-section through irregular contact surfaces. This method is complicated to process, poor in consistency, and poor in sealing performance, especially when the density of hydrogen is low. Leakage is more likely to occur, and the pole piece and the valve sleeve are processed in one piece, which is not conducive to inner hole grinding, the accuracy is poor, and the cost of dimensional inspection and maintenance is high. Contents of the invention [0003] In order to solve the above various problems, the present invention provides a hydrogen supply proportional solenoid valve. [0004] In order to solve the above technical problems, the technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/26F16K1/00F16K31/06H01M8/04089H01M8/04746
CPCF16K3/262F16K3/267F16K31/0655F16K31/0668F16K31/0675H01M8/04089H01M8/04753Y02E60/50
Inventor 赵文帅
Owner 无锡伟博汽车科技有限公司
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