Invention Grant
- Patent Title: Manufacturing methods for multi-lobed cooling holes
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Application No.: US15424363Application Date: 2017-02-03
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Publication No.: US11371386B2Publication Date: 2022-06-28
- Inventor: Gordon Miller Reed , Paul R. Faughnan, Jr. , John Quitter
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Kinney & Lange, P.A.
- Main IPC: F01D25/12
- IPC: F01D25/12 ; B23K26/082 ; B23K26/0622 ; B23K26/146 ; B23K26/382 ; B26F3/00 ; F23R3/00 ; B23B35/00 ; B23P15/04 ; B23K101/00 ; F01D5/18 ; F01D9/06 ; B23C3/00

Abstract:
A method for producing a diffusion cooling hole extending between a wall having a first wall surface and a second wall surface includes forming a cooling hole inlet at the first wall surface, forming a cooling hole outlet at the second wall surface, forming a metering section downstream from the inlet and forming a multi-lobed diffusing section between the metering section and the outlet. The inlet, outlet, metering section and multi-lobed diffusing section are formed by laser drilling, particle beam machining, fluid jet guided laser machining, mechanical machining, masking and combinations thereof.
Public/Granted literature
- US20180010484A1 MANUFACTURING METHODS FOR MULTI-LOBED COOLING HOLES Public/Granted day:2018-01-11
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