(19)
(11) EP 2 336 701 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.05.2017 Bulletin 2017/22

(43) Date of publication A2:
22.06.2011 Bulletin 2011/25

(21) Application number: 10193609.4

(22) Date of filing: 03.12.2010
(51) International Patent Classification (IPC): 
F28F 1/12(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: 14.12.2009 US 636843

(71) Applicant: MAHLE International GmbH
70376 Stuttgart (DE)

(72) Inventors:
  • Ghosh, Debashis
    Williamsville, NY 14221-8311 (US)
  • Acre, James A.
    Barker, NY 14012 (US)

(74) Representative: BRP Renaud & Partner mbB Rechtsanwälte Patentanwälte Steuerberater 
Königstraße 28
70173 Stuttgart
70173 Stuttgart (DE)

   


(54) Low pressure drop fin with selective micro surface enhancement


(57) The assembly includes a heat exchanger assembly (20) including a plurality of tubes (32) extending between first and second manifolds. A plurality of fins (42) extend back and forth between and long the tubes (32) in a continuous patch and define a plurality of legs (48) extending between the tubes (32). Each of the legs (48) includes a plurality of front long louvers (52) for conveying a stream of air through the legs. Each of the legs further defines a plurality of main spoilers (56) between the front long louvers (52) and the back edges (44,46) of the legs (48) for inducing turbulence in the stream of air with each of the main spoilers (56) having a spoiler height in the range of 50 to 90 percent of the long louver height and each of the main spoilers (56) having a spoiler length in the range of 10 to 35 percent of the long louver length.







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Search report