A high-temperature and high-pressure high-precision sensitive element

Abstract

The invention belongs to the technical field of airborne equipment, in particular to a sensitive element with high precision resistant to high temperature and high pressure for a fuel regulator and aims to provide a sensitive element capable of sensing high temperature environment and high pressure environment at the same time. The sensitive element with high precision resistant to the high temperature and the high pressure comprises a welded bellow, a spring, washers and an end cover. The welded bellow is welded to form a diaphragm string through a plurality of diaphragms. One end of the diaphragm string is connected with a seat in a welded mode, and the other end of the diaphragm string is connected with a center shaft in a welded mode. The one end of the diaphragm string connected with the seat and the other end of the diaphragm string connected with the center shaft together form a sealed cavity structure. The welded bellow is arranged in the spring. One end of the spring is connected with the seat of the welded bellow, the other end of the spring is pressed with the end cover, the end cover is connected with the center shaft of the welded bellow in a screw mode, and a plurality of washers are arranged between the welded bellow and the seat. The sensitive element with high precision resistant to the high temperature and the high pressure has the advantages of increasing rigid of a component, meeting the high temperature and the high pressure working conditions, meeting specification requirements of the sensitive element, realizing high precision miniaturization combination resistant to the high temperature and the high pressure, meeting development requirements of the high precision miniaturization sensitive element in the high temperature and the high pressure environment in future, and reducing the design and procession difficulties of products.

Description

technical field [0001] The invention belongs to the technical field of airborne equipment, and specifically relates to a high-temperature, high-pressure, and high-precision sensitive element for a fuel regulator, which effectively solves the need for the development of miniaturized sensitive elements in high-temperature, high-pressure environments in the future, and has high precision , Long life characteristics, while reducing the difficulty of product design and process. Background technique [0002] For sensitive elements that need to be resistant to high temperature and high pressure at the same time, the existing technology is to design a combination of high temperature resistant sensitive elements and high pressure resistant sensitive elements to meet the requirements under different environmental conditions, which will lead to complex design, The process is difficult to process, and the overall shape of the product cannot meet the development requirements of miniatur...

AI Technical Summary

Problems solved by technology

[0002] For sensitive elements that need to be resistant to high temperature and high pressure at the same time, the existing technology is to design a combination of high temperature resistant and high pressure resistant sensitive elements to meet the requirements under different environmental conditions, which will lead to complex design, Difficulty in process processing, the overall shape of the product cannot meet the development requirements of miniaturization, etc.

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