Invention Grant
- Patent Title: Zoned surface roughness
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Application No.: US16470284Application Date: 2018-01-19
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Publication No.: US11028707B2Publication Date: 2021-06-08
- Inventor: Peter Johansson
- Applicant: GKN Aerospace Sweden AB
- Applicant Address: SE Trollhättan
- Assignee: GKN Aerospace Sweden AB
- Current Assignee: GKN Aerospace Sweden AB
- Current Assignee Address: SE Trollhättan
- Agency: Bejin Bieneman PLC
- Priority: GB1700954 20170119
- International Application: PCT/EP2018/051341 WO 20180119
- International Announcement: WO2018/134367 WO 20180726
- Main IPC: F01D25/24
- IPC: F01D25/24 ; F01D9/04 ; F04D29/54 ; F01D9/06 ; F04D29/66
Abstract:
The invention concerns a transition duct for a multi-stage compressor of a gas turbine engine. Regions of the inner surface of the duct are provided with a predetermined and dissimilar surface roughness to optimise gas flow efficiency within the duct.
Public/Granted literature
- US20200011189A1 ZONED SURFACE ROUGHNESS Public/Granted day:2020-01-09
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