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

Turbofan engine, fan casing and manufacturing method thereof

A technology of turbofan engine and fan casing, which is applied to machines/engines, liquid fuel engines, mechanical equipment, etc., can solve the problems of reducing the containment performance of the fan casing, unfavorable casing structure consistency, and failure of the fan casing, etc. Achieve the effect of avoiding excessive fiber content, ensuring structural consistency and improving strength

Active Publication Date: 2022-01-28
AECC COMML AIRCRAFT ENGINE CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the winding process of the three-dimensional machine box prefabricated body, the winding start end and the winding end are generally connected with other prefabricated bodies by resin or adhesive. The local strength of the end part is low at the joint, forming a local weak area. On the one hand, it is not conducive to the structural consistency of the casing under various working conditions. Failure, greatly reducing the containment performance of the fan case

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
  • Turbofan engine, fan casing and manufacturing method thereof
  • Turbofan engine, fan casing and manufacturing method thereof
  • Turbofan engine, fan casing and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings. In the following description, more details are set forth in order to fully understand the present invention, but the present invention can obviously be implemented in a variety of other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific implementation manner should not limit the protection scope of the present invention.

[0032] For example, the description that the first feature described later in the description is formed on or above the second feature may include the embodiment in which the first and second features are formed through direct contact, and may also include an embodiment in which the first and second features are formed. Embodiments that form addition...

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 purpose of the present invention is to provide a fan casing, the fan casing is a cylindrical body formed by winding a prefabricated body made of composite material more than one turn, the fan casing has a thickness direction and a circumferential direction; the prefabricated body has a first end and the second end portion, the first end portion and the second end portion have an overlapping area along a predetermined distance in the circumferential direction in the thickness direction, and in the overlapping area along the thickness direction, a multiple reinforcement lines. The invention also provides a turbofan engine including the fan casing and a manufacturing method of the fan casing. Arranging reinforcing wires along the thickness direction at the winding interface of the fan casing can improve the impact resistance of the fan casing.

Description

technical field [0001] The invention relates to a turbofan engine, in particular to a fan case contained in the turbofan engine and a manufacturing method of the fan case. Background technique [0002] With the continuous improvement of composite material preparation technology, the material properties of composite materials are also continuously enhanced, and the application range of composite materials in the field of aero-engines is also becoming more and more extensive. The use of composite material fan blades makes it possible to use composite material fan casings. Woven composite materials have a strong ability to resist delamination failure in the thickness direction, and have been gradually extended to the use of fan casings. In the preparation process, since the single-layer woven prefabricated body does not meet the thickness requirements of the casing, it is necessary to prepare the prefabricated body of the composite fan casing by multi-layer winding. [0003] ...

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): F04D29/52F04D29/02B29C70/54B29C70/30
CPCF04D29/522F04D29/023B29C70/30B29C70/54
Inventor 时起珍张建黄天麟
Owner AECC COMML AIRCRAFT ENGINE 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