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Thermocouple compensation cable for aircraft engine

An aircraft engine, thermocouple technology, applied in the direction of insulated cables, cables, circuits, etc., can solve problems such as reducing the reliability of the engine thermocouple compensation circuit, achieve excellent core-screen capacitance characteristics, improve reliability, and excellent electrical resistance performance. Effect

Active Publication Date: 2015-07-22
江苏永鼎电气有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The working conditions in the high and low temperature areas of the new engine are completely different. Generally, two compensation cables that meet different requirements are connected through connectors, which reduces the reliability of the entire engine thermocouple compensation circuit.

Method used

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  • Thermocouple compensation cable for aircraft engine

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] A thermocouple compensation cable for an aircraft engine, a thermocouple compensation cable for an aircraft engine, which is composed of at least two kinds of wires, each of which is multi-strand, and all the wires are wrapped in the same pure nickel In the wire braided overall shielding layer 7, the pure nickel wire braided overall shielding layer 7 is also wrapped with a FEP sheath 8, and one of the wires is sequentially wrapped with a synthetic mica 3 and a silicon oxide fiber braided layer 4 outside the nickel-chromium positive electrode conductor 1 , high temperature resistant coating 5 and pure nickel wire braided sub-shielding layer 6.

[0025] Another kind of wire is composed of nickel-silicon negative electrode conductor 2 wrapped with synthetic mica 3, silicon oxide fiber braided layer 4, high temperature resistant coating 5 and pure nickel wire braide...

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Abstract

The invention discloses a thermocouple compensation cable for an aircraft engine, which is formed by combining at least two types of wires. Each type of wires comprises a plurality of strands; all the wires are coated in the same pure nickel wire woven total shielding layer; a FEP (Fluorinated Ethylene Propylene) protection layer is also coated outside the pure nickel wire woven total shielding layer; one type of wires is formed by sequentially coating a synthetic mica and calcia-alumina-silica fiber woven layer, a high temperature resistance coating and a pure nickel wire woven branch shielding layer outside a nickel-chromium anode conductor. The invention provides the high temperature resistance and high reliability thermocouple compensation cable for the aircraft engine, solves the problem that in the prior art, the characteristics of high performance, light weight, high reliability, high temperature resistance and the like cannot be simultaneously implemented, and solves the problem of mutual restriction among the cable high temperature resistance requirement, the cable outer diameter setting, the working voltage requirement and the transmission requirement by the material selection and the structure design of the cable.

Description

technical field [0001] The invention relates to a thermocouple compensation cable, in particular to a thermocouple compensation cable with high temperature resistance and high reliability which can be used for aircraft engines. Background technique [0002] The development of military and civil aircraft has suddenly put forward higher and newer requirements for new engines. Engines with new performance and high requirements must have high-reliability high-temperature-resistant thermocouple compensation cables that can meet harsh operating conditions. High performance, high reliability, light weight, high temperature resistant thermocouple compensation cable is one of the key components of the new aero-engine, which directly determines the successful application of the new aero-engine. At present, ordinary thermocouple compensation cables that meet the GB / T4989 standard can be used at temperatures ranging from -25 to 200°C, with the highest being 260°C. [0003] The fundame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/17H01B7/29H01B7/02H01B1/02H01B1/04
Inventor 钱科朱华山王开宇常飖强
Owner 江苏永鼎电气有限公司
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