公开(公告)号：US20190063250A1

公开(公告)日：2019-02-28

申请号：US15690307

申请日：2017-08-30

Applicant: General Electric Company

Inventor： Jinjie Shi ,  Dennis Paul Dry ,  Christopher Edward Wolfe ,  Andres Jose Garcia-Crespo ,  Yun Zhu

IPC: F01D11/12 ,  F01D5/20 ,  F01D5/28 ,  F01D5/18

Abstract: Coating systems for a cooled turbine blade tip, such as a metal turbine blade tip, are provided. The coating system includes an abrasive layer overlying the surface of the turbine blade tip. One or more buffer layers may additionally be disposed between an outer surface of the blade tip and the abrasive layer. The coated blade tip can be used with a ceramic matrix composite (CMC) shroud coated with an environmental barrier coating (EBC) to provide improved cooling to the tip so as to lengthen oxidation time of the abrasive layer and reduce blade tip wear. Methods are also provided for forming the cooled blade tip and applying the coating system onto the cooled turbine blade tip.

公开(公告)号：US10215036B2

公开(公告)日：2019-02-26

申请号：US15086539

申请日：2016-03-31

Applicant: General Electric Company

Inventor： Andres Jose Garcia-Crespo ,  John McConnell Delvaux ,  Diane Patricia Miller

IPC: F01D5/30 ,  F01D5/14

Abstract: An assembly and method for affixing a turbomachine rotor blade to a rotor wheel are disclosed. In an embodiment, an adaptor member is provided disposed between the blade and the rotor wheel, the adaptor member including an adaptor attachment slot that is complementary to the blade attachment member, and an adaptor attachment member that is complementary to the rotor wheel attachment slot. A coverplate is provided, having a coverplate attachment member that is complementary to the rotor wheel attachment slot, and a hook for engaging the adaptor member. When assembled, the coverplate member matingly engages with the adaptor member, and retains the blade in the adaptor member, and the assembly in the rotor wheel.

公开(公告)号：US09718735B2

公开(公告)日：2017-08-01

申请号：US14612806

申请日：2015-02-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： John McConnell Delvaux ,  Andres Jose Garcia-Crespo ,  Victor John Morgan ,  Jacob John Kittleson

IPC: B32B3/24 ,  F01D25/12 ,  F01D25/24 ,  C04B35/00 ,  C04B35/44 ,  C04B35/52 ,  C04B35/565 ,  B29C70/54 ,  F01D5/18 ,  B29C71/04 ,  F01D25/14 ,  F01D5/28 ,  F01D11/08 ,  F02C6/06 ,  F02C6/08 ,  B29L31/00 ,  B32B3/26 ,  F01D11/24

CPC classification number: C04B35/565 ,  B29C70/545 ,  B29C71/04 ,  B29L2031/7504 ,  B32B3/266 ,  C04B35/44 ,  C04B35/52 ,  F01D5/186 ,  F01D5/282 ,  F01D5/284 ,  F01D5/288 ,  F01D11/08 ,  F01D11/24 ,  F01D25/12 ,  F01D25/14 ,  F02C6/06 ,  F02C6/08 ,  F05D2230/90 ,  F05D2240/11 ,  F05D2260/202 ,  F05D2260/232 ,  F05D2270/09 ,  F05D2270/11 ,  F05D2270/112 ,  F05D2300/2261 ,  F05D2300/6033

Abstract: Components are disclosed which include a CMC substrate having a first surface and a second surface. The first surface is in fluid communication with a compressed, dry fluid, and the second surface is in fluid communication with a wet fluid stream and includes a hermetic coating. The components further include at least one opening extending from the first surface through a portion of the CMC substrate, wherein, upon removal of a fragment of one or both of the hermetic coating and the CMC substrate, the at least one opening selectively permits a flow of the compressed, dry fluid to the second surface. In one embodiment, the component is a gas turbine component, the wet fluid stream is a hot combustion stream, the hermetic coating is an environmental barrier coating, and the flow reduces or eliminates volatilization of the CMC substrate. Methods for forming the components are also disclosed.