AERO-ENGINE AND FUSING METHOD THEREOF UNDER FAN BLADE OUT LOAD

Title:

AERO-ENGINE AND FUSING METHOD THEREOF UNDER FAN BLADE OUT LOAD

Document Type and Number:

WIPO Patent Application WO/2017/166846

Kind Code:

A1

Abstract:

An fusing structure and method of an aero-engine under a fan blade out load, wherein the aero-engine comprises a fan rotor (100), a stator part intermediate case (9), a first bearing (3) and a second bearing (4) supporting the fan rotor (100), a first support cone arm supporting the first bearing (3) on the stator part intermediate case (9), and a second support arm (13) supporting the second bearing (4) on the stator part intermediate case (9); the first support cone arm being of a thin-wall annular structure and comprising an upper cone arm (2) and a lower cone arm (1), the upper cone arm (2) has an upper junction surface (21), and the lower cone arm (1) has a lower junction surface (11); one of the upper junction surface (21) and the lower junction surface (11) is a concave spherical surface while the other one being a convex spherical surface; the upper junction surface (21) and the lower junction surface (11) are complementary and welded into a fusing structure with strength being lower than that of a parent material, the spherical surface center of the fusing structure being located at the axis (12) of the fan rotor (100).

Inventors:

CHAI XIANGHAI (CN)
WEI YONG (CN)
WANG SHAOHUI (CN)
SONG HUIYING (CN)
HOU LIANG (CN)

Application Number:

PCT/CN2016/108342

Publication Date:

October 05, 2017

Filing Date:

December 02, 2016

Export Citation:

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Assignee:

AECC COMMERCIAL AIRCRAFT ENGINE CO LTD (CN)

International Classes:

F01D21/00

Domestic Patent References:

WO2015080797A1

2015-06-04

Foreign References:

CN103775212A	2014-05-07
CA2861291A1	2015-06-23
US20050232755A1	2005-10-20
US6783319B2	2004-08-31

Other References: