Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

High-temperature-resistant igniter ejector

A catapult, high-temperature-resistant technology, which is applied in aircrafts, aerospace vehicles, and docking devices for aerospace vehicles, etc., can solve the problems of affecting the speed and thrust of the catapult, reducing the speed of structural heat conduction, and decreasing the shear strength rapidly. The effect of reducing the contact area, reducing the impact, increasing the path of heat transfer

Active Publication Date: 2018-04-20
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) If the main charge with high temperature resistance is selected, it will be more insensitive, and it will definitely affect the ignition reliability under the condition of limited ignition current
[0005] (2) The shear pins of existing catapults are generally made of aluminum alloy and structural steel, and the shear strength decreases rapidly under high temperature conditions, which affects the speed and thrust of the catapult
[0007] Therefore, when the catapult uses the existing mature main charge, it can only be optimized from the structural design to reduce the speed of structural heat conduction and ensure that the temperature at the position of the main charge and the igniter can meet the use requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature-resistant igniter ejector
  • High-temperature-resistant igniter ejector
  • High-temperature-resistant igniter ejector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, a high temperature resistant pyrotechnic catapult of the present invention includes an inner cylinder assembly, an outer cylinder assembly, a medicine box assembly and a shear pin 2, the inner cylinder assembly and the outer cylinder assembly are fixed by the shear pin 2, and the outer cylinder assembly and The medicine box assembly is connected; the outer aircraft protective cover is connected with the inner cylinder assembly, and the outer aircraft is connected with the outer cylinder assembly.

[0031] The inner cylinder assembly includes an inner cylinder 1 and a sliding rod 3; the material of the inner cylinder 1 is TA15, one end of the inner cylinder 1 is a flange, and the flange end has an internal thread, the thickness of the flange is smaller than the length of the threaded section, and the ot...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high-temperature-resistant igniter ejector which comprises an inner barrel component, an outer barrel component, a cartridge box component and shear pins, wherein the innerbarrel component and the outer barrel component are fixed through the shear pins, the outer barrel component is connected with the cartridge box component, a protective cover of an external aircraft is connected with the inner barrel component, and the external aircraft is connected with the outer barrel component. The ejector has an axial bearing capacity, can resist to external high temperatureof 560 DEG C, can be normally ejected and separated after 1500s and has a higher ejection speed, and an ejector piston is flush with the end surface of the outer barrel after separation so as to ensure the aerodynamic configuration of the aircraft. The high-temperature-resistant igniter ejector can be used for connection and separation of the protective cover and a supersonic aircraft.

Description

technical field [0001] The invention belongs to the field of pyrotechnic devices, and relates to a high-temperature-resistant pyrotechnic catapult capable of realizing the separation of a supersonic aircraft protective cover and a supersonic aircraft. Background technique [0002] Catapults are widely used in spaceships, satellites, launch vehicles, and unmanned aerial vehicles. They are mainly used for connection and separation between structures, providing speed for reliable separation of objects, and are generally used for locking and separating light-weight cabins. The cover and protective cover are the key technologies of the separation ejection system, which determine the success or failure of the ejection separation system, and their importance in the aerospace field is becoming more and more prominent. [0003] With the upgrading of spacecraft mission requirements, supersonic vehicles have higher requirements on thermal environment, and catapults, which are key actio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/64
CPCB64G1/645
Inventor 韩言勋刘世毅景莉张丽梅刘群贾子年杨昭周传霞任法璞
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products