METHOD AND DEVICE FOR DETECTING ACCUMULATION OF MATERIAL ON A BLADE OF A WIND TURBINE AND FOR DETERMINING UPWIND CONDITION - Patent 2764241

(19)

(11)

EP 2 764 241 A2

(12)

(88)	Date of publication A3:
	20.06.2013

(43)	Date of publication:
	13.08.2014 Bulletin 2014/33

(21)	Application number: 12769424.8

(22)	Date of filing: 04.10.2012

(51)

International Patent Classification (IPC):

F03D 11/00^(2006.01)

(86)	International application number:
	PCT/EP2012/069640

(87)	International publication number:
	WO 2013/050485 (11.04.2013 Gazette 2013/15)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)

Priority:

05.10.2011 SE 1150921

(71)	Applicant: Windvector AB
	421 32 Västra Frölunda (SE)

(72)	Inventor:
	WICKSTRÖM, Stellan S-431 44 Mölndal (SE)

(74)	Representative: Somlo, Tommy
	Awapatent AB Södra Hamngatan 37-41 P.O. Box 11394 S-404 28 Göteborg S-404 28 Göteborg (SE)

(54)	METHOD AND DEVICE FOR DETECTING ACCUMULATION OF MATERIAL ON A BLADE OF A WIND TURBINE AND FOR DETERMINING UPWIND CONDITION