EP 1357296 B1 20060628 - BLOWER, AND OUTDOOR UNIT FOR AIR CONDITIONER
Title (en)
BLOWER, AND OUTDOOR UNIT FOR AIR CONDITIONER
Title (de)
GEBLÄSE UND AUSSENEINHEIT FÜR KLIMAANLAGE
Title (fr)
SOUFFLANTE ET UNITE EXTERIEURE POUR CONDITIONNEUR D'AIR
Publication
Application
Priority
- JP 0110599 W 20011205
- JP 2000400530 A 20001228
Abstract (en)
[origin: EP1357296A1] Generation and growth of a wing tip vortex in a part of an outer peripheral portion of a blade not surrounded by a bell mouth is restrained to reduce noise (i.e., operation noise) generated by collision of the wing tip vortex and a fan guard on a blowoff side of a propeller fan. A ratio H1/H0 is set in a range of H1/H0 = 0.40 to 0.65 where H1 denotes a height of a portion of an axis directional height of the bell mouth 5 that is overlapped with an outer peripheral portion P of the blade 13, while H0 denotes an axis directional height of the outer peripheral portion P of the blade 13, so as to restrain growth of a leakage flow (i.e., a wing tip vortex) from a positive pressure surface to a negative pressure surface of the blade 13 in a part of the outer peripheral portion P of the blade 13 not surrounded by the bell mouth 5 while maintaining a suction flow from the outer peripheral portion P of the blade 13. <IMAGE>
IPC 8 full level
F04D 29/38 (2006.01); F04D 29/54 (2006.01)
CPC (source: EP)
F04D 29/384 (2013.01); F04D 29/545 (2013.01)
Designated contracting state (EPC)
BE DE ES FR GB IT
DOCDB simple family (publication)
EP 1357296 A1 20031029; EP 1357296 A4 20040114; EP 1357296 B1 20060628; AU 2002221045 B2 20051006; CN 1210503 C 20050713; CN 1406319 A 20030326; DE 60121222 D1 20060810; DE 60121222 T2 20070516; ES 2266106 T3 20070301; HK 1053689 A1 20031031; TW 517825 U 20030111; WO 02053919 A1 20020711
DOCDB simple family (application)
EP 01272799 A 20011205; AU 2002221045 A 20011205; CN 01805718 A 20011205; DE 60121222 T 20011205; ES 01272799 T 20011205; HK 03105894 A 20030818; JP 0110599 W 20011205; TW 91213946 U 20011206