Step-by-step direct-action electromagnetic operating valve with wide working range

A working range, electromagnetic actuation technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of large structure size and mass, the engine system cannot provide external control air source, and the electric valve solution cannot be used.

Active Publication Date: 2016-03-09
XIAN AEROSPACE PROPULSION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The engine fuel control valve that requires repeated starts usually adopts an electric valve or a direct-acting solenoid valve. Since a certain type of ramjet system cannot provide an external control air source, the electric valve cannot be used; regardless of the str

Method used

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  • Step-by-step direct-action electromagnetic operating valve with wide working range
  • Step-by-step direct-action electromagnetic operating valve with wide working range
  • Step-by-step direct-action electromagnetic operating valve with wide working range

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Embodiment Construction

[0037] Such as figure 1 As shown, it is a step-by-step direct-acting electromagnetic actuated valve structure with a wide working range of the present invention, which consists of a valve body 1, a coil 2, a spring 3, an armature 4, a pin shaft 5, a wear-reducing ring 6, a sealing ring 7, The guide sleeve 8, the guide valve core 9, the main valve core 10, the housing 11, the adjusting gasket 12, the rubber O-ring 13 and the socket 14 etc. are composed.

[0038]The working mode of this product is to open when the power is turned on and to close when the power is off. When the valve is not working, the medium enters the upper cavity 42 of the main valve core through the orifice 104 on the main valve core, and provides sealing force for the main valve core 10 together with the spring force. Ensure reliable sealing of the spool. When there is no pressure difference between the inlet and the outlet, after the coil is energized, the electromagnetic attraction overcomes the spring f...

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PUM

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Abstract

The invention relates to a step-by-step direct-action electromagnetic operating valve with a wide working range. The step-by-step direct-action electromagnetic operating valve comprises a shell, a valve element assembly and a valve element driving assembly, wherein the valve element assembly comprises a guide valve element and a main valve element, and the guide valve element is sleeved with a first guide sleeve. According to the step-by-step direct-action electromagnetic operating valve, the characteristics of a direct-action electromagnetic valve structure and the characteristics of a pilot electromagnetic valve are combined; the step-by-step direct-action electromagnetic operating valve can drive the valve elements to operate directly through attraction force of an electromagnet like a direct-action electromagnetic valve, the structural characteristics of step-by-step actions of a pilot electromagnetic valve are also achieved, and the requirements of the wide working range of an engine are met through low weight and small size. Meanwhile, the product structure is simple, the machining manufacturability and assembly manufacturability are good, and the step-by-step direct-action electromagnetic operating valve is suitable for batch production. The electromagnetic operating valve is applicable to controlling over an engine fuel oil system which is wide in working pressure and working flow range and also applicable to the working conditions having large flow, mediate and low pressure, and high flow resistance requirements.

Description

technical field [0001] The invention relates to a step-by-step direct-acting electromagnetic actuation valve structure with a wide working range, which is suitable for an engine fuel supply pipeline control system with a wide range of working pressure, working flow and working temperature. Background technique [0002] The engine fuel control valve that requires repeated starts usually adopts an electric valve or a direct-acting solenoid valve. Since a certain type of ramjet system cannot provide an external control air source, the electric valve cannot be used; regardless of the structural size and Under the premise of structural quality, the traditional direct-acting solenoid valve solution needs to be used under high-pressure and high-flow conditions, and its structural size and mass are very large, far exceeding the range that the engine system can bear. [0003] A certain type of liquid sub-combustible ramjet engine is the cruise-level power plant of a certain type of s...

Claims

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Application Information

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IPC IPC(8): F16K31/06F16K1/36F16K1/32
CPCF16K1/32F16K1/36F16K31/0655
Inventor 沙超赵双龙曾维亮袁洪滨雷小飞徐登伟孙磊
Owner XIAN AEROSPACE PROPULSION INST
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