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

Two-way ventilation device for universal airplane wing fuel tank ventilation system

A ventilation device, wing oil tank technology, applied in the direction of the fuel tank of the power unit, etc., can solve the problems of increasing the weight of the system and not completely solving the problem of oil leakage, and achieve the effect of easy installation, solving a large number of oil leakage problems, and simple structure

Active Publication Date: 2016-06-01
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the ventilation system of domestic general-purpose aircraft is connected with the outside world mainly through the ventilation pipeline and the atmospheric environment. Due to the large diameter of the ventilation pipeline, oil leakage will occur during the maneuvering flight of the aircraft. In order to solve the oil leakage problem , the traditional ventilation system often needs to arrange a long ventilation pipeline, and the outlet of the ventilation pipe is arranged at the position of the fuselage, which increases the weight of the system and cannot completely solve the problem of oil leakage

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
  • Two-way ventilation device for universal airplane wing fuel tank ventilation system
  • Two-way ventilation device for universal airplane wing fuel tank ventilation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The specific embodiment of the present invention will be described with reference to the accompanying drawings. Such as figure 1 , figure 2 , The device casing 1 on the device of the present invention is connected together with the ventilation pipe 4 through threads, and the device casing 1 is provided with a ventilation hole 5 . The torsion spring 8 is sleeved on the valve rod of the valve assembly 2, and the valve assembly 2 is fixed on the partition plate 6 through the valve rod. In a natural state, the valve assembly 2 is sealed with the device casing 1 under the force of the torsion spring 3 .

[0016] The diameter of the vent hole 5 on the device casing 1 of the device of the present invention is 1-3 mm. During the flight of the aircraft, when the pressure in the fuel tank is greater than or equal to the atmospheric pressure, the valve assembly 2 seals the through hole of the partition 6 under the force of the torsion spring 8, and exhausts air to the outside ...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of universal airplane wing fuel tank ventilation and relates to a two-way ventilation device for a universal airplane wing fuel tank ventilation system. The two-way ventilation device is of a pure mechanical structure and is mainly composed of a shell, a valve assembly, a spring and the like. The airplane climbing exhausting function and the function that a valve is opened to supplement air when negative pressure exists in a fuel tank in the descending process can be achieved. When an airplane rolls and flies at a large angle, the valve assembly is closed, and therefore the problem that a large amount of fuel of the fuel tank leaks through a ventilation pipe is solved.

Description

technical field [0001] The invention belongs to the technical field of ventilation of wing fuel tanks of general aircrafts, and relates to a two-way ventilation device used for ventilation of wing fuel tanks of general aircrafts. Background technique [0002] At present, the ventilation system of domestic general-purpose aircraft is connected with the outside world mainly through the ventilation pipeline and the atmospheric environment. Due to the large diameter of the ventilation pipeline, oil leakage will occur during the maneuvering flight of the aircraft. In order to solve the oil leakage problem , The traditional ventilation system often needs to arrange a long ventilation pipeline, and the outlet of the ventilation pipe is arranged at the position of the fuselage, which increases the weight of the system and cannot completely solve the problem of oil leakage. Contents of the invention [0003] The purpose of the present invention is to provide a simple in structure, ...

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
IPC IPC(8): B64D37/06
Inventor 罗海涛熊桂碧
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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