EP 0303924 B1 19911023 - FAN ROTOR MANUFACTURED FROM A THIN METAL DISC, AND ITS PRODUCTION METHOD
Title (en)
FAN ROTOR MANUFACTURED FROM A THIN METAL DISC, AND ITS PRODUCTION METHOD
Publication
Application
Priority
DE 3726522 A 19870810
Abstract (en)
[origin: EP0303924A2] It is proposed to solve the problem of designing a fan rotor manufactured from a thin metal disc in such a way that it can be manufactured cost-effectively and at the same time produce a greater air output whilst causing less noise. This is achieved by a special shape of the fan blades. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/38 (2006.01); B21D 53/26 (2006.01); B21D 53/78 (2006.01); F04D 29/28 (2006.01); F04D 29/32 (2006.01)
CPC (source: EP US)
B21D 53/78 (2013.01 - EP US); F04D 29/281 (2013.01 - EP US); Y10S 416/03 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0303924 A2 19890222; EP 0303924 A3 19890607; EP 0303924 B1 19911023; AT E68852 T1 19911115; DE 3726522 A1 19890223; DE 3865775 D1 19911128; ES 2027738 T3 19920616; JP S6463699 A 19890309; US 5007801 A 19910416
DOCDB simple family (application)
EP 88112859 A 19880806; AT 88112859 T 19880806; DE 3726522 A 19870810; DE 3865775 T 19880806; ES 88112859 T 19880806; JP 19471788 A 19880805; US 23014588 A 19880809