公开(公告)号：US10344601B2

公开(公告)日：2019-07-09

申请号：US14421645

申请日：2013-03-15

Applicant: United Technologies Corporation

Inventor： Matthew A. Turner ,  Andrew G. Alarcon ,  James Glaspey ,  Brian Green ,  Barry M. Ford ,  Renee J. Jurek

IPC: F01D5/14 ,  F01D5/30 ,  F01D5/02 ,  F01D11/00

Abstract: A spacer assembly for a rotor assembly of a gas turbine engine includes an endwall segment having a non-axisymmetric flowpath surface, a first depression and a second depression. A perimeter of the flowpath surface includes a forward edge, an aft edge, a suction side edge and a pressure side edge. The first depression is formed along the flowpath surface adjoining the suction side edge, and the second depression is formed along the flowpath surface adjoining the pressure side edge.

公开(公告)号：US09926806B2

公开(公告)日：2018-03-27

申请号：US14598822

申请日：2015-01-16

Applicant: United Technologies Corporation

Inventor： Thomas J. Praisner ,  Eric A. Grover ,  Renee J. Jurek

IPC: F01D5/14 ,  F01D25/06 ,  F01D9/04 ,  F01D5/12 ,  F01D25/24 ,  F04D29/52 ,  F04D29/68 ,  F04D29/54 ,  F04D27/02

CPC classification number: F01D25/06 ,  F01D5/12 ,  F01D5/143 ,  F01D5/145 ,  F01D9/041 ,  F01D25/24 ,  F04D27/02 ,  F04D27/0207 ,  F04D29/526 ,  F04D29/547 ,  F04D29/685 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2240/24 ,  F05D2250/70 ,  F05D2260/941 ,  F05D2260/96 ,  Y02T50/673

Abstract: A turbomachine includes an annular flow path section between a plurality of radially extending stator vanes and a plurality of radially extending rotor blades. At least a first portion of the flow path section has a circumferentially varying outer periphery which includes a recess circumferentially alternating with axisymmetric surfaces.

公开(公告)号：US09212558B2

公开(公告)日：2015-12-15

申请号：US13663977

申请日：2012-10-30

Applicant: United Technologies Corporation

Inventor： Thomas J. Praisner ,  Andrew S. Aggarwala ,  Eric A. Grover ,  Renee J. Jurek

IPC: F01D9/00 ,  F02C3/04 ,  F01D5/14

CPC classification number: F01D5/145 ,  F01D5/143 ,  F04D29/324 ,  F04D29/329 ,  F04D29/547 ,  F04D29/681 ,  F05D2240/123 ,  F05D2240/305 ,  F05D2250/712 ,  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 airfoil array may further include a convex profiled region extending from the endwall adjacent the first side of at least one of said plurality of airfoils and near the leading edge of the at least one of said plurality of airfoils. The airfoil array may further include a concave profiled region in the endwall adjacent the first side of said at least one of said plurality of airfoils and aft of the convex profiled region.

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。 翼型阵列还可以包括从邻近所述多个翼型中的至少一个翼型件的第一侧的端壁延伸并且在所述多个翼型中的至少一个翼型件的前缘附近的凸形轮廓区域。 所述翼型阵列还可包括邻近所述多个翼型件中的所述至少一个翼型件的第一侧和所述凸形轮廓区域的后部的所述端壁中的凹形轮廓区域。