The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Nov. 03, 2021
Aecc Shanghai Commercial Aircraft Engine Manufacturing Co., Ltd., Shanghai, CN;
Aecc Commercial Aircraft Engine Co., Ltd., Shanghai, CN;
Chuanjun Cao, Shanghai, CN;
Jinchun Wang, Shanghai, CN;
Zeyong Yin, Shanghai, CN;
Jibao Li, Shanghai, CN;
Fan Wu, Shanghai, CN;
Xiaoshi Zhang, Shanghai, CN;
Zhilong Zhai, Shanghai, CN;
Yixuan Jiang, Shanghai, CN;
AECC SHANGHAI COMMERCIAL AIRCRAFT ENGINE MANUFACTURING CO., LTD., Shanghai, CN;
AECC COMMERCIAL AIRCRAFT ENGINE CO., LTD., Shanghai, CN;
Abstract
A method includes simplifying flowing of airflow at root of a rotor blade into flowing of free jet, and determining an airflow expansion angle according to Mach number of incoming flow at root of a stator vane; calculating a radial height difference between a first end point on a leading edge of a stator platform and a trailing edge of an adjacent rotor platform by using an axial distance thereof, the angle and a deviation coefficient; determining position of the first end point with radial height difference; determining intersection point of the leading edge and the stator platform as position of a second end point on the leading edge; and determining a profile line between the points by bridging spline curves, so that the tail end thereof is tangent to the intersection line, and the starting end thereof is kept on same plane as side wall of the leading edge.