EP 0884542 A4 20000329 - OUTDOOR UNIT OF AIR CONDITIONER
Title (en)
OUTDOOR UNIT OF AIR CONDITIONER
Title (de)
AUSSENEINHEIT FÜR KLIMAANLAGE
Title (fr)
UNITE EXTERIEURE DE CONDITIONNEUR D'AIR
Publication
Application
Priority
- JP 9704059 W 19971107
- JP 33544896 A 19961216
Abstract (en)
[origin: EP0884542A1] A sawtoothed portion 5 is provided in a front edge 3a of grille vanes 2a constituting an air outlet grille of an outdoor unit. Each crest 5a of the sawtoothed portion 5 is rounded at its tip. The height H of each crest of the sawtoothed portion 5 is set to a size of 0.05 to 0.25 times the length of the wing-shaped grille vane (chord length), and the crest-to-crest pitch S of the sawtoothed portion 5 is set to a size of 0.5 to 1.5 times the height H of each crest. As a result, there arise numerous longitudinal eddies from troughs 5b of the sawtoothed portion 5, so that an air flow of high flow rate at places away from the negative-pressure surface of the grille vanes 2a can be drawn near the negative-pressure surface. Thus, the flow on the negative-pressure surface side is unlikely to break away, and noise is reduced. <IMAGE>
IPC 1-7
IPC 8 full level
F24F 5/00 (2006.01); F24F 1/40 (2011.01); F24F 1/56 (2011.01); F24F 13/08 (2006.01); F24F 13/24 (2006.01)
CPC (source: EP KR)
F24F 1/58 (2013.01 - EP KR); F24F 13/08 (2013.01 - EP); F24F 13/082 (2013.01 - KR); F24F 13/24 (2013.01 - EP KR); F24F 13/082 (2013.01 - EP)
Citation (search report)
- [A] US 4976115 A 19901211 - HOGAN MARK R [US]
- [A] EP 0711925 A1 19960515 - MITSUBISHI HEAVY IND LTD [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 017, no. 430 (M - 1460) 10 August 1993 (1993-08-10)
- See references of WO 9827390A1
Designated contracting state (EPC)
BE DE ES FR GB GR IT NL PT
DOCDB simple family (publication)
EP 0884542 A1 19981216; EP 0884542 A4 20000329; EP 0884542 B1 20030507; AU 4885597 A 19980715; AU 719177 B2 20000504; CN 1106545 C 20030423; CN 1211311 A 19990317; DE 69721739 D1 20030612; DE 69721739 T2 20040205; ES 2198557 T3 20040201; HK 1016247 A1 19991029; ID 21219 A 19990506; JP 3052862 B2 20000619; JP H10176847 A 19980630; KR 100453318 B1 20041231; KR 19990081955 A 19991115; PT 884542 E 20030930; SA 97180747 B1 20060812; WO 9827390 A1 19980625
DOCDB simple family (application)
EP 97911481 A 19971107; AU 4885597 A 19971107; CN 97192322 A 19971107; DE 69721739 T 19971107; ES 97911481 T 19971107; HK 99101114 A 19990317; ID 980049 D 19971107; JP 33544896 A 19961216; JP 9704059 W 19971107; KR 19980705673 A 19980724; PT 97911481 T 19971107; SA 97180747 A 19971228