EP 2767791 A4 20141001 - FINNED TUBE HEAT EXCHANGER
Title (en)
FINNED TUBE HEAT EXCHANGER
Title (de)
WÄRMETAUSCHER MIT GERIPPTEN RÖHREN
Title (fr)
ÉCHANGEUR DE CHALEUR À TUBE À AILETTES
Publication
Application
Priority
- JP 2011223922 A 20111011
- JP 2012006469 W 20121010
Abstract (en)
[origin: EP2767791A1] A fin tube heat exchanger (100) includes fins (31) and heat transfer tubes (21). Each of the fins (31) has a flat portion (35), a first inclined portion (36), and a second inclined portion (38). A length of the fin (31) in a gas flow direction is defined as S1, a center-to-center distance between the heat transfer tubes in a row direction is defined as S2, a diameter of the flat portion (35) is defined as D1, a flat plane passing through an upstream end and a downstream end of the fin (31) in the gas flow direction is defined as a reference plane H1, an angle between the reference plane H1 and the first inclined portion (36) is defined as ¸1, an angle between the reference plane H1 and the second inclined portion (38) is defined as ¸2, and a distance from the reference plane H1 to the flat portion (35) is defined as ±. The fin tube heat exchanger (100) satisfies a relationship: tan -1 {(S1 €¢ tan¸1 ± 2±)/(S2 - D1)} ‰¤ ¸2 < 80° - ¸1.
IPC 8 full level
F28F 1/32 (2006.01)
CPC (source: EP)
F28D 1/0477 (2013.01); F28F 1/32 (2013.01); F28F 1/325 (2013.01)
Citation (search report)
- [I] US 4691768 A 19870908 - OBOSU CHARLES B [US]
- See references of WO 2013054508A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 2767791 A1 20140820; EP 2767791 A4 20141001; EP 2767791 B1 20190515; CN 103890527 A 20140625; CN 103890527 B 20160420; JP 5958771 B2 20160802; JP WO2013054508 A1 20150330; WO 2013054508 A1 20130418
DOCDB simple family (application)
EP 12840153 A 20121010; CN 201280050084 A 20121010; JP 2012006469 W 20121010; JP 2013538435 A 20121010