EP 0999367 B1 20030212 - Flow conduit with cross-section discontinuity
Title (en)
Flow conduit with cross-section discontinuity
Title (de)
Strömungskanal mit Querschnittssprung
Title (fr)
Conduit d'écoulement à discontinuité de section transversale
Publication
Application
Priority
EP 98811112 A 19981106
Abstract (en)
[origin: EP0999367A1] The heat generator has vortex producing elements (20) arranged upstream of a step (10) in the wall (8) of a flow channel. The vortex producing elements are spaced apart with a lateral pitch along a line lying transverse to the main flow direction. The lateral pitch is smaller than half a wavelength corresponding to a limit frequency in the main flow upstream of the step, to destroy coherent periodic vortices released at a frequency below the limit frequency.
IPC 1-7
IPC 8 full level
F23R 3/18 (2006.01); F15D 1/06 (2006.01); F17D 1/20 (2006.01); F23R 3/04 (2006.01)
CPC (source: EP US)
F15D 1/0045 (2013.01 - EP US); F15D 1/06 (2013.01 - EP US); F23R 3/045 (2013.01 - EP US); F23D 2209/20 (2013.01 - EP US); F23R 2900/00014 (2013.01 - EP US)
Citation (examination)
EP 0669500 A1 19950830 - ABB MANAGEMENT AG [CH]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0999367 A1 20000510; EP 0999367 B1 20030212; CN 1124442 C 20031015; CN 1254073 A 20000524; DE 59807195 D1 20030320; JP 2000146184 A 20000526; JP 4426034 B2 20100303; US 6216644 B1 20010417
DOCDB simple family (application)
EP 98811112 A 19981106; CN 99122360 A 19991103; DE 59807195 T 19981106; JP 31703399 A 19991108; US 43117999 A 19991101