Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Binary Adjustable Nozzle with Spherical Seal

A spherical sealing and nozzle technology, used in jet propulsion devices, machines/engines, etc., can solve problems such as poor sealing, prevent high-temperature gas leakage, improve sealing effect, and facilitate installation.

Active Publication Date: 2021-11-02
BEIJING XINGJI RONGYAO SPACE TECH CO LTD +3
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor sealing between the adjusting plate of the binary adjustable nozzle and the top plate of the nozzle during rotation in the prior art, thereby providing a spherical sealing Binary adjustable nozzle

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
  • A Binary Adjustable Nozzle with Spherical Seal
  • A Binary Adjustable Nozzle with Spherical Seal
  • A Binary Adjustable Nozzle with Spherical Seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as Figure 1-8 A binary adjustable nozzle adopting a spherical seal is shown, including a nozzle body, a sealing ball seat 4 , a sealing structure and an adjusting plate 8 .

[0047] In this embodiment, the nozzle body includes a bottom plate 1 , a side plate 2 connected to the bottom plate 1 , and a top plate 3 connected to the side plate 2 and opposite to the bottom plate 1 . The bottom plate 1 is rectangular and is the bottom surface of the nozzle body. There are three side plates 2, which are fixed to the bottom plate 1 by screws, and sealing strips are installed in the groove positions. The bottom plate 1, the side plate 2 and the top plate 3 enclose to form a nozzle cavity with an air outlet on one side. The top plate 3 is rectangular, and the top plate 3 is provided with spherical holes 31 with openings at both ends. The sealing ball seat 4 is installed on the spherical hole 31 of the top plate 3 in a rotatable manner around an axis, and the bottom of the...

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 discloses a binary adjustable nozzle adopting spherical sealing, which comprises a bottom plate, three side plates, a top plate, a sealing ball seat, a spring, a metal graphite ring, a flexible sealing ring and an adjustment plate; the three side plates and the bottom plate Fixed connection; flexible sealing ring, spring and metal graphite ring are installed on the sealing ball seat; the adjustment plate is fixedly connected with the sealing ball seat; the sealing ball seat is installed on the top plate, and its contact surface is spherical; when working, the servo mechanism and the sealing ball The connecting hole on the ball seat drives the sealing ball seat to move, and then drives the adjustment plate to change the air outlet area of ​​the nozzle, which can accurately adjust the thrust of the nozzle; and the flexible sealing ring, spring, and metal graphite ring can ensure the sealing ball seat and The tightness between the top plates prevents the leakage of high-temperature gas, and ensures that the binary adjustable nozzle can accurately control the thrust of the nozzle at a certain angle while ensuring the tightness between the sealing ball seat and the top plate.

Description

technical field [0001] The invention relates to the technical field of adjustable nozzles, in particular to a binary adjustable nozzle with spherical sealing. Background technique [0002] The adjustable nozzle is an important component of aero-engine and ramjet engine. It is one of the most important control variables of the engine to control the working state of the engine by adjusting the throat or outlet area of ​​the nozzle. According to the difference of the cross-section of the flow channel, the adjustable nozzle can be roughly divided into two categories: the axisymmetric adjustable nozzle and the binary adjustable nozzle. [0003] The high-temperature gas of the binary adjustable nozzle is ejected from the outlet of the fixed section (the outlet of the combustion chamber), and then injected into the atmosphere through the inner flow channel formed by the side wall and the regulating plate. The adjusting plate can rotate around the pin shaft, thereby changing the th...

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 Patents(China)
IPC IPC(8): F02K1/12F02K1/15
CPCF02K1/1207F02K1/15
Inventor 彭小波张峰景婷婷樊迪
Owner BEIJING XINGJI RONGYAO SPACE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com