公开(公告)号：US20150354382A1

公开(公告)日：2015-12-10

申请号：US14297917

申请日：2014-06-06

Applicant: General Electric Company

Inventor： Srinivas PAKKALA ,  Christopher Paul COX

IPC: F01D9/06

CPC classification number: F01D9/065 ,  F05D2220/32

Abstract: A system is provided including a turbine exhaust section. The turbine exhaust section includes an exhaust flow path. The turbine exhaust section also includes an outer structure having an outer casing, an outer exhaust wall disposed along the exhaust flow path, and an outer cavity disposed between the outer exhaust wall and the outer casing. The turbine exhaust section further includes an inner structure having an inner exhaust wall disposed along the exhaust flow path, a bearing cavity disposed between the inner casing and a bearing housing. In addition, the turbine exhaust section includes a strut extending between the outer structure and the inner structure. The strut includes a first flow passage configured to flow a fluid from the bearing cavity to the outer cavity. The flow of fluid is thermally insulated from the strut.

Abstract translation: 提供了一种包括涡轮机排气部分的系统。 涡轮排气部包括排气流路。 涡轮机排气部还包括外部结构，其具有外壳，沿排气流路设置的外排气壁和设置在外排气壁与外壳之间的外腔。 涡轮排气部还包括具有沿着排气流路设置的内排气壁的内部结构，设置在内壳和轴承壳体之间的轴承腔。 此外，涡轮机排气部分包括在外部结构和内部结构之间延伸的支柱。 支柱包括构造成将流体从轴承腔流动到外腔的第一流动通道。 流体与支柱热绝缘。

公开(公告)号：US20170114654A1

公开(公告)日：2017-04-27

申请号：US15301659

申请日：2014-04-02

Applicant: General Electric Company

Inventor： Srinivas PAKKALA ,  Robert JAMIOLKOWSKI ,  Tomasz JENDRZEJEWSKI ,  Rohit PRUTHI

IPC: F01D11/00 ,  F01D5/02 ,  F01D9/02 ,  F02C3/04

Abstract: A turbine or turbine system includes a compressor, a combustor, a turbine section, a diffuser with a parting line between two components, and a seal along the parting line. The seal includes a protrusion, a recess, and a flexible portion between the protrusion and the recess. The flexible portion has a bent cross-section perpendicular to the parting line. An outer surface of the bent cross-section contacts an inner surface of the recess. An inner surface of the bent cross-section contacts an outer surface of the protrusion. Sealing a parting line between two parts of a diffuser in a gas turbine system includes disposing a flexible portion between a protrusion and a recess of the two parts, contacting an outer surface of the bent cross-section with an inner surface of the recess, contacting an inner surface of the bent cross-section with an outer surface of the protrusion, and pressurizing the diffuser.