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

Ventilation cooling air inlet channel for improving air inlet efficiency of NACA port

A technology of air intake efficiency, ventilation and cooling, which is applied to the cooling system of the power unit, the combustion of the air intake of the power unit, etc., can solve the problems of limited flow capacity, damage, and increased resistance of the whole machine, so as to reduce the outflow resistance, Easy-to-implement, simple-structure effects

Pending Publication Date: 2021-12-07
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The improvement of the shape of the ridge line on the inlet side has very limited improvement in the flow capacity; the existing vortex generator technology can better improve the flow capacity of the buried air intake, but it has caused varying degrees of damage to the flow field on the surface of the aircraft, increasing overall drag

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
  • Ventilation cooling air inlet channel for improving air inlet efficiency of NACA port
  • Ventilation cooling air inlet channel for improving air inlet efficiency of NACA port
  • Ventilation cooling air inlet channel for improving air inlet efficiency of NACA port

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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 belongs to the technical field of aircraft design, and particularly relates to a ventilation cooling air inlet channel for improving the air inlet efficiency of an NACA port. According to the air inlet channel, an embedded NACA air inlet (2) is formed in the nacelle or fuselage surface (1) and located behind a boundary layer of the nacelle or fuselage surface (1), a plurality of streaming columns (3) are installed on the nacelle or fuselage surface (1) and located around the NACA air inlet (2), the streaming columns (3) extend outwards in the direction perpendicular to the nacelle or fuselage surface (1) in the axis direction to form streaming column tops, and the NACA air inlet (2) is formed in the nacelle or fuselage surface (1). And the height of the streaming column (3) is set to enable the top of the streaming column to be slightly higher than the boundary layer. The air inlet efficiency of the air inlet is improved by arranging the streaming column row near the embedded NACA air inlet in the surface of the aircraft body, the structure is simple, implementation is easy, meanwhile, the multi-state use requirement of the aircraft can be met by adjusting the height and the installation angle of the streaming column row, and switchable selection between ventilation cooling flow and flowing resistance is achieved.

Description

technical field [0001] The application belongs to the technical field of aircraft design, and in particular relates to a ventilation and cooling air intake for improving the air intake efficiency of the NACA port. Background technique [0002] The buried air intake has no components protruding from the surface of the aircraft, so it can keep the aircraft as "clean" as possible on the aerodynamic surface, and will not cause damage to the aerodynamic performance of the aircraft; In the layer, the capture area for free flow is zero, so its flow capacity is weak and the flow field quality is poor, which is the key factor restricting its wide application in engineering. [0003] In order to improve the flow capacity of the buried air inlet, a variety of technical measures have been developed. These technical measures are mainly divided into two categories: the improvement of the shape of the ridgeline on the inlet side and the addition of vortex generators. The improvement of 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
IPC IPC(8): B64D33/02B64D33/10
CPCB64D33/02B64D33/10
Inventor 杨成凤张宏
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