Airfoil with array of cooling pins

(19)

(11)

EP 2 565 382 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.04.2015 Bulletin 2015/17

(43)	Date of publication A2:
	06.03.2013 Bulletin 2013/10

(21)	Application number: 12180753.1

(22)	Date of filing: 16.08.2012

(51)

International Patent Classification (IPC):

F01D 5/18^(2006.01)

(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
	Designated Extension States:
	BA ME

(30)

Priority:

30.08.2011 US 201113221009

(71)	Applicant: General Electric Company
	Schenectady, NY 12345 (US)

(72)	Inventor:
	Smith, Aaron Ezekiel Greenville, SC South Carolina 29615 (US)

(74)	Representative: Cleary, Fidelma
	GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith London W6 8BJ London W6 8BJ (GB)

(54)	Airfoil with array of cooling pins

(57) The present application provides an airfoil (100) with a cooling flow (130) therein. The airfoil (100) may include an internal cooling passage (110), a number of cooling holes (120) in communication with the internal cooling passage (110), and a number of pin-fms (150) positioned within the internal cooling passage (110). The pin-fms (150) are arranged with one or more turning openings (170) and one or more guiding openings (180) so as to direct the cooling flow (130) towards the cooling holes (120).

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