EP 0704625 B1 20030115 - A fan
Title (en)
A fan
Title (de)
Lüfter
Title (fr)
Ventilateur
Publication
Application
Priority
- US 31482794 A 19940929
- US 45883595 A 19950531
Abstract (en)
[origin: EP0704625A2] A fan for rotation in a first direction about an axis at the centre of the fan, comprises a hub (4), and a plurality of blades (6) each having a root region secured to the hub and extending radially outwardly to a tip region, a leading edge (B) and a trailing edge (C) of each blade having a respective surface portion which is tangential to a respective radius of the fan, the leading edge and the trailing edge of each blade at the tip region being circumferentially behind, with respect to the first direction, the leading edge and trailing edge at the root region whereby the fan is rearwardly skewed. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 19/00 (2006.01); F04D 29/32 (2006.01); F04D 29/38 (2006.01)
CPC (source: EP)
F04D 19/002 (2013.01); F04D 29/326 (2013.01); F04D 29/329 (2013.01); F04D 29/386 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0704625 A2 19960403; EP 0704625 A3 19971119; EP 0704625 B1 20030115; BR 9504242 A 19970408; DE 69529379 D1 20030220; DE 69529379 T2 20031009
DOCDB simple family (application)
EP 95306852 A 19950928; BR 9504242 A 19950929; DE 69529379 T 19950928