公开(公告)号：WO2014025439A2

公开(公告)日：2014-02-13

申请号：PCT/US2013041496

申请日：2013-05-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AIELLO NICHOLAS ,  LEE CONOR

CPC classification number: F01D11/02 ,  F01D11/001

Abstract: A gas turbine engine rotor section includes a rotor body with a ledge extending axially from a location on the rotor body. The ledge defines a radially inner surface radially inwardly of the ledge, and a hub extends axially from the rotor, and beyond the ledge. The hub has a radially outer surface spaced from the ledge radially inner surface. A first distance is defined between the radially inner surface of the ledge and the radially outer surface of the hub. A knife edge seal has at least one pointed knife seal portion at a radially outer end. A radially inwardly extending arm portion extends from the seal, and an axially inwardly extending portion extends axially inwardly from the radially inwardly extending portion. The axially inwardly extending portion has a radially outer face and a radially inner face, which are spaced by a second distance. The second distance is less than the first distance. The axially inwardly extending portion is received between the radially inner face of the rotor and the radially outer face of the hub, such that the knife edge seal is free floating between the ledge and the hub.

Abstract translation: 燃气涡轮发动机转子部分包括具有从转子体上的位置轴向延伸的凸缘的转子体。 凸缘限定了凸缘径向向内的径向内表面，并且毂从转子轴向延伸并且超出凸缘。 毂具有与凸缘径向内表面间隔开的径向外表面。 在凸缘的径向内表面和毂的径向外表面之间限定第一距离。 刀刃密封件在径向外端具有至少一个尖刀密封部分。 径向向内延伸的臂部分从密封件延伸，并且轴向向内延伸的部分从径向向内延伸的部分轴向向内延伸。 轴向向内延伸的部分具有径向外表面和径向内表面，间隔开第二距离。 第二距离小于第一距离。 轴向向内延伸的部分被容纳在转子的径向内表面和轮毂的径向外表面之间，使得刀刃密封件在凸缘和轮毂之间自由浮动。

公开(公告)号：EP2855890A4

公开(公告)日：2016-03-16

申请号：EP13828300

申请日：2013-05-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AIELLO NICHOLAS ,  LEE CONOR

IPC: F02C7/28 ,  F01D11/00 ,  F01D11/02

CPC classification number: F01D11/02 ,  F01D11/001

公开(公告)号：EP2855888A4

公开(公告)日：2016-01-20

申请号：EP13798040

申请日：2013-05-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AIELLO NICHOLAS ,  LEE CONOR

IPC: F02C7/28 ,  F01D5/00 ,  F01D5/20 ,  F01D11/00 ,  F02C7/00 ,  F04D29/08 ,  F04D29/16

CPC classification number: F01D11/001 ,  F01D11/005 ,  F04D29/083 ,  F04D29/164 ,  Y10T29/49321

Abstract: A segment for a knife edge seal includes an arcuate segment with a first end with a first end surface and a second end with a second end surface. The first end surface and the second end surface are complementary and overlapping when the first end surface and the second end surface interface with ends of adjacent segments.