Invention Grant
- Patent Title: Microwave absorbing composite for turbine blade applications
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Application No.: US15039255Application Date: 2014-10-24
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Publication No.: US10283873B2Publication Date: 2019-05-07
- Inventor: Pushkar Dilip Kanhere , Weng Chye Jeffrey Ho , Xinghua Wu , Eng Kee Chua , Srikanth Narasimalu , Kye Yak See , Zhong Chen , Jose Luis González Moral , Rosario Martínez Ortigosa
- Applicant: NANYANG TECHNOLOGICAL UNIVERSITY , GAMESA INNOVATION & TECHNOLOGY, S.L.
- Applicant Address: SG Singapore ES Sarriguren
- Assignee: NANYANG TECHNOLOGY UNIVERSITY,GAMESA INNOVATION & TECHNOLOGY, S.L.
- Current Assignee: NANYANG TECHNOLOGY UNIVERSITY,GAMESA INNOVATION & TECHNOLOGY, S.L.
- Current Assignee Address: SG Singapore ES Sarriguren
- Agency: Ladas & Parry LLP
- International Application: PCT/US2014/062151 WO 20141024
- International Announcement: WO2015/061670 WO 20150430
- Main IPC: F03D1/06
- IPC: F03D1/06 ; H01Q17/00 ; H01Q15/00

Abstract:
The invention provides a composite laminate comprising an outer, an intermediate and an inner section comprising, respectively, first layers of composite material and one or more functional layers having a printed circuit for absorbing the electromagnetic radiation incident on the composite laminate; second layers of composite material; a conducting layer contiguous to the intermediate section and third layers of composite material. The values of the resistivity of the functional layer and the thickness of the intermediate section are comprised in predefined ranges for the attenuation of the reflection of electromagnetic radiation of the composite laminate in the S or X bands up to a peak of −20 dB. The invention also refers to manufacturing methods of the composite laminate (11) and to wind turbine blades including the composite laminate.
Public/Granted literature
- US10355366B2 Microwave absorbing composite for turbine blade applications Public/Granted day:2019-07-16
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