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Air-breathing pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test

A technology of thermocouple and engine, which is applied in engine testing, machine/structural component testing, heat measurement, etc. It can solve problems such as poor reliability, dynamic data distortion, and difficulty in replacement, so as to achieve mechanical damage, enhance reliability, The effect of improving reliability

Active Publication Date: 2021-03-19
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: to provide a small inertial couple that can be reliably used in the dynamic temperature distortion test of the engine intake, and to solve the problem of large test time constants that exist in conventional small inertial couples , poor reliability, poor flow field versatility, dynamic data distortion, complex testing methods and difficult to replace, etc.

Method used

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  • Air-breathing pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test
  • Air-breathing pluggable thermocouple probe for engine air inlet total temperature dynamic distortion test

Examples

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Embodiment 1

[0043] This example discloses an air-breathing pluggable small-inertia thermocouple probe used for the dynamic temperature distortion test of the air intake of an aeroengine, see Figure 1 to Figure 2 , including thermocouple bracket 1, fine thermocouple 2, gas collector 3, probe outer shell 4, galvanic couple socket shell 5, socket ceramic sleeve 6, socket assembly 7, pin assembly 8, pin ceramic sleeve 9 , Galvanic couple pin housing 10, lock nut 11, positioning ring 12, probe tail housing 13, galvanic couple extension wire 14, bleed air tube 15 and vacuum pump.

[0044] Described thermocouple bracket 1 selects K-type bare couple wire or plastic-coated couple wire after peeling for use, and the diameter is selected or The length is 9.5mm, and its root is fixed by crimping with the socket assembly 7, wherein the positive thermocouple bracket 1 is crimped and fixed with the socket assembly 7 processed with nickel chrome, and the negative thermocouple bracket 1 is crimped wit...

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Abstract

The invention belongs to the technical field of aero-engine air inlet dynamic temperature distortion testing, and particularly relates to an air-breathing type pluggable thermocouple probe for the engine air inlet total temperature dynamic distortion test. The air-breathing pluggable thermocouple probe comprises a thermocouple support 1, a micro thermocouple 2, a galvanic couple socket, a galvaniccouple contact pin, an air collecting head 3, a probe outer shell 4, a locking nut 11, a positioning ring 12, a probe tail shell 13, a galvanic couple extension line 14 and an air entraining pipe 15.

Description

technical field [0001] The invention belongs to the technical field of aero-engine air intake dynamic temperature distortion testing, and in particular relates to an air-breathing pluggable small inertial thermocouple probe for dynamic distortion testing of engine intake total temperature. Background technique [0002] Transient temperature is an important parameter for high-temperature flow field and thermodynamic analysis of temperature-resistant devices in applications such as detonation combustion and high-speed heat transfer, especially in many fields of defense industries such as aerospace, gas turbines, and missile explosives. In the dynamic temperature distortion test of an aero-engine, since it is necessary to obtain the data of the influence of the dynamic distortion temperature field of the intake air on the engine stability margin loss, it is especially necessary to accurately measure the instantaneous State space distortion temperature field. Usually, small-dia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/02G01K1/14G01M15/02
CPCG01K7/02G01K1/14G01M15/02
Inventor 单智超侯孟唐磊
Owner AECC SICHUAN GAS TURBINE RES INST
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