An electro-hydraulic servo valve triple redundancy coil structure

An electro-hydraulic servo valve and three-redundancy technology, applied in the field of mechanical hydraulics, can solve problems such as aircraft out of control, poor working conditions, and loss of life safety, and achieve the effect of increasing control margin and improving reliability

Active Publication Date: 2022-01-07
AVIC NANJING SERVO CONTROL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its failure will cause the aircraft to lose control, resulting in irreparable loss of life safety and economic loss
As a hydraulic component, the electro-hydraulic servo valve is used in harsh working conditions. In order to improve reliability, the control margin of the electro-hydraulic servo valve can be increased

Method used

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  • An electro-hydraulic servo valve triple redundancy coil structure
  • An electro-hydraulic servo valve triple redundancy coil structure

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Effect test

Embodiment Construction

[0018] This part is the embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0019] The three-redundancy coil structure of the electro-hydraulic servo valve of the present invention includes a large winding 6, a small winding 5, a retaining wall, a lead wire 4, and an armature assembly 8. The large winding 6 and the small winding 5 are installed side by side, and the large winding 6 and the small winding 5 are installed side by side. A retaining wall is provided between the small windings 5 ​​to form a coil assembly 12; the two coil assemblies 12 are installed on the two cantilevers of the armature assembly 8; the two small windings 5 ​​are connected in series through lead wires, and the two coil assemblies 12 The small windings 5 ​​are adjacent, and the large windings 6 are arranged at both ends of the armature assembly 8 .

[0020] The large winding 6 and the small winding 5 are made by winding the en...

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PUM

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Abstract

The invention discloses a three-redundancy coil structure of an electro-hydraulic servo valve, which includes a large winding, a small winding, a retaining wall, a lead wire, and an armature assembly. The large winding and the small winding are installed side by side, and the large winding and the small winding A retaining wall is provided to form a coil assembly; two coil assemblies are installed on the two cantilevers of the armature assembly; two small windings are connected in series through lead-out wires, the two small windings of the two coil assemblies are adjacent, and the large winding is located on the armature The two ends of the assembly; the large winding and the small winding are made of enameled wire wound on the coil frame. The coil frame has a structure with two grooves, and a retaining wall is provided between the grooves of the coil frame. The structure increases the control margin of the electro-hydraulic servo valve and improves the reliability of the electro-hydraulic servo valve without changing the volume of the existing coil.

Description

technical field [0001] The invention belongs to the field of mechanical hydraulics, and specifically relates to a three-redundancy coil structure of an electro-hydraulic servo valve. The control margin of the valve improves the reliability of the electro-hydraulic servo valve. It is suitable for hydraulic servo control systems with higher requirements for reliability and safety. Background technique [0002] As a precise and complex hydraulic servo control element, the electro-hydraulic servo valve is widely used in the aerospace field. Its failure will cause the loss of control of the aircraft, resulting in irreparable loss of life safety and economic loss. As a hydraulic component, the electro-hydraulic servo valve is used in harsh working conditions. In order to improve reliability, the control margin of the electro-hydraulic servo valve can be increased. [0003] Traditional electro-hydraulic servo valves adopt dual redundancy control, which contains two coil assembli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F15B13/02H01F7/08H01F7/126
CPCF16K31/0679F16K31/061F15B13/02H01F7/08H01F7/081H01F7/126
Inventor 张驰葛声宏赵义伟
Owner AVIC NANJING SERVO CONTROL SYST CO LTD
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