EP 0947708 A3 20010307 - A cross-flow fan and an air-conditioner using it
Title (en)
A cross-flow fan and an air-conditioner using it
Title (de)
Querstromlüfter und damit versehene Klimaanlage
Title (fr)
Ventilateur à courant transversal et climatiseur l'utilisant
Publication
Application
Priority
JP 8327898 A 19980330
Abstract (en)
[origin: EP0947708A2] A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/28 (2006.01); F04D 29/66 (2006.01)
CPC (source: EP KR)
F04D 29/283 (2013.01 - EP); F04D 29/666 (2013.01 - EP); F24F 13/00 (2013.01 - KR)
Citation (search report)
- [A] US 5266007 A 19931130 - BUSHNELL PETER R [US], et al
- [A] EP 0785362 A1 19970723 - MITSUBISHI ELECTRIC CORP [JP]
- [A] DE 4421604 C1 19950413 - SIEMENS AG [DE]
- [A] US 5681145 A 19971028 - NEELY MICHAEL J [US], et al
- [A] MELLIN R C ET AL: "CONTROLLING THE TONAL CHARACTERISTICS OF THE AERODYNAMIC NOISE GENERATED BY FAN ROTORS", TRANSACTIONS OF THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SERIES D: JOURNAL OF BASIC ENGINEERING,US,ASME. NEW YORK, vol. 92, no. 1, 1 March 1970 (1970-03-01), pages 143 - 154, XP002030072
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0947708 A2 19991006; EP 0947708 A3 20010307; EP 0947708 B1 20050202; DE 69923490 D1 20050310; DE 69923490 T2 20060216; KR 100545985 B1 20060125; KR 19990078295 A 19991025; TW 377393 B 19991221
DOCDB simple family (application)
EP 99106442 A 19990329; DE 69923490 T 19990329; KR 19990010457 A 19990326; TW 88103800 A 19990312