EP 1899782 A4 20120425 - HEAT TRANSFER VENTURI
Title (en)
HEAT TRANSFER VENTURI
Title (de)
WÄRMETRANSFER-VENTURI
Title (fr)
VENTURI A TRANSFERT DE CHALEUR
Publication
Application
Priority
- US 2006024633 W 20060623
- US 69393405 P 20050624
Abstract (en)
[origin: WO2007002496A2] Heat pumps consume power in order to transfer heat from a source to a higher- temperature sink. This invention enables spontaneous heat transfer from a heat source to a small portion of the generally warmer working fluid that is locally cooled by the Bernoulli effect to a temperature below that of the heat source. The Bernoulli effect occurs in a Venturi shaped duct shaped to maintain laminar flow. Heat- transfer efficiency is improved by restriction of the heat transfer to a small portion of the Venturi in which the flow temperature, velocity, pressure gradient and the Nusselt effect all enhance heat transfer. Within this region, heat transfer is maximized by a thermally conducting grid extending across the Venturi neck.
IPC 8 full level
G05D 16/00 (2006.01); F25B 9/00 (2006.01); F25B 13/00 (2006.01); F25B 23/00 (2006.01); F28F 27/00 (2006.01); G05D 23/00 (2006.01); G05D 23/19 (2006.01)
CPC (source: EP KR US)
F25B 9/00 (2013.01 - EP KR US); F25B 23/00 (2013.01 - EP KR US); G05D 23/192 (2013.01 - EP KR US); F25B 2341/0011 (2013.01 - EP KR US)
Citation (search report)
- [XI] FR 754609 A 19331109
- [X] US 2441279 A 19480511 - THELMA MCCOLLUM
- See references of WO 2007002496A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007002496 A2 20070104; WO 2007002496 A3 20070412; CA 2613088 A1 20070104; CN 101268430 A 20080917; EP 1899782 A2 20080319; EP 1899782 A4 20120425; JP 2008546984 A 20081225; KR 20080025411 A 20080320; US 2009183858 A1 20090723
DOCDB simple family (application)
US 2006024633 W 20060623; CA 2613088 A 20060623; CN 200680026899 A 20060623; EP 06773916 A 20060623; JP 2008518467 A 20060623; KR 20087001932 A 20080124; US 99387106 A 20060623