公开(公告)号：US20200024984A1

公开(公告)日：2020-01-23

申请号：US16225944

申请日：2018-12-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Andrew S. Aggarwala ,  Timothy Charles Nash ,  Eunice Allen-Bradley ,  Eric A. Grover

IPC: F01D9/02 ,  F01D5/14 ,  F04D29/68 ,  F04D29/54 ,  F04D29/32

Abstract: An airfoil array may include an endwall, and a plurality of airfoils radially projecting from the endwall. Each airfoil may have a first side and an opposite second side extending axially in chord between a leading edge and a trailing edge. The airfoils may be circumferentially spaced apart on the endwall thereby defining a plurality of flow passages between adjacent airfoils. The airfoil array may further include a convex profiled region extending from the endwall adjacent to the first side of at least one of said plurality of airfoils near the leading edge of the at least one of said plurality of airfoils, and a concave profiled region in the endwall and extending across said at least one of said plurality of flow passages.

公开(公告)号：US20140154068A1

公开(公告)日：2014-06-05

申请号：US13664031

申请日：2012-10-30

Applicant: United Technologies Corporation

Inventor： Andrew S. Aggarwala ,  Timothy Charles Nash ,  Eunice Allen-Bradley ,  Eric A. Grover

IPC: F01D5/14 ,  F01D9/02

CPC classification number: F01D9/02 ,  F01D5/143 ,  F01D5/145 ,  F04D29/324 ,  F04D29/542 ,  F04D29/681 ,  Y02T50/673

Abstract: An airfoil array is disclosed. The airfoil array may include an endwall, and a plurality of airfoils radially projecting from the endwall. Each airfoil may have a first side and an opposite second side extending axially in chord between a leading edge and a trailing edge. The airfoils may be circumferentially spaced apart on the endwall thereby defining a plurality of flow passages between adjacent airfoils. The airfoil array may further include a convex profiled region extending from the endwall adjacent to the first side of at least one of said plurality of airfoils near the leading edge of the at least one of said plurality of airfoils, and a concave profiled region in the endwall and extending across said at least one of said plurality of flow passages.

Abstract translation: 公开了一种翼型阵列。 翼型阵列可以包括端壁和从端壁径向突出的多个翼型件。 每个翼型件可以具有在前缘和后缘之间以弦状轴向延伸的第一侧和相对的第二侧。 翼型件可以在端壁上周向间隔开，从而在相邻翼型之间限定多个流动通道。 翼型阵列还可以包括凸出的轮廓区域，该凸形轮廓区域从靠近所述多个翼型件中的至少一个的前缘的所述多个翼型件中的至少一个的第一侧面的端壁延伸，并且在所述多个翼型件中的凹形轮廓区域 并且延伸穿过所述多个流动通道中的所述至少一个。