Method for determining wing-shaped oblique-flow cooling fan of automobile engine

A technology for automotive engines and cooling fans, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as large deviations in design results, long design change cycles, and unreasonable distribution of optimal flow rates

Inactive Publication Date: 2013-02-27
XIAN UNIV OF TECH
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for determining the oblique flow cooling fan of an automobile engine airfoil, which solves the unreasonable optimal flow velocity distribution in the prior art. The trial and error method is used to verify the fan. The design result has large deviation and the design change cycle Long, time-consuming and labor-intensive problems in the design and production process

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
  • Method for determining wing-shaped oblique-flow cooling fan of automobile engine
  • Method for determining wing-shaped oblique-flow cooling fan of automobile engine
  • Method for determining wing-shaped oblique-flow cooling fan of automobile engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0142] Such as Figure 4 As shown, it is a schematic diagram of the front structure of the airfoil oblique flow cooling fan of the automobile engine of the present invention. The shape of the blades is complex, and a plurality of blades are arranged on a cylindrical shaft disk, sucking air from the axial direction, and then to the oblique rear or radial direction blow out. Combining the advantages of centrifugal fans and axial flow fans, it is between centrifugal and axial flow within a certain specific speed range. It has the advantages of large flow and high pressure, and has the large flow coefficient, high efficiency and high efficiency of axial flow fans. Centrifugal fans have the advantages of high pressure coefficient and wide working range, especially suitable for compact car engine compartments, and are ideal cooling fans.

[0143] The method for determining the oblique flow cooling fan of the automobile engine airfoil of the present invention is implemented accordin...

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 method for determining a wing-shaped oblique-flow cooling fan of an automobile engine. The method is implemented by the following steps: obtaining essential parameters of a plane blade lattice, obtaining the definite shape of a meridian plane, calculating a theoretical total pressure rise value, calculating flow velocity distribution, mapping and obtaining an equivalent velocity triangle, selecting blade profile parameters, performing correction compensation on the wing-shaped blade profile, calculating blade profile parameters, calculating blade coordinate values, fitting to obtain a blade cross-sectional line by using the obtained blade coordinate values, superposing individual cross-sectional planes in the radial direction to form a blade profile, and finally determining the wing-shaped oblique-flow cooling fan. The method can not only ensure the smoothness of curved surface of the fan but also meet the requirements for pneumatic property and process, greatly reduces the design cycle, facilitates the modification of the following design, and greatly reduces the development cost.

Description

technical field [0001] The invention belongs to the technical field of automobile engine equipment manufacturing, and relates to a method for determining an airfoil oblique flow cooling fan of an automobile engine. Background technique [0002] The design and performance of the automobile engine cooling fan directly lead to the engine running effect, and often become the key components that hinder the successful development of the engine, directly affecting the overall development of the engine. At the same time, it has a direct impact on the heat dissipation effect, noise, fuel economy and engine power consumption of the engine. [0003] The design of the cooling system is determined by the basic structure of the entire car, so it is difficult to independently establish a set of theories. Therefore, it is generally designed with the approximate calculation method first, and then conducts comprehensive experiments on various factors of the cooling system and the actual vehi...

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): G06F17/50
Inventor 芮宏斌宋俐张金凯
Owner XIAN UNIV OF 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap