EP 0259061 A3 19890222 - AXIAL FLOW FAN AND FAN BLADE THEREFOR
Title (en)
AXIAL FLOW FAN AND FAN BLADE THEREFOR
Publication
Application
Priority
JP 20569186 A 19860901
Abstract (en)
[origin: EP0259061A2] A fan blade (1) for an axial flow fan, the angle of installation (X,Y,Z) of the fan blade (1) varying radially thereof, the angle of installation (X,Y,Z) being constituted by the angle between a straight line (13) connecting the leading and trailing edges (14,15) of the fan blade (1) on a predetermined cross section (16) of the latter concentric to the axis (5) of a fan adapted to be provided with the fan blade, on the one hand, and a plane (12) perpendicular to the said axis (5),on the other hand, characterised in that the angle of installation (X,Y,Z) is at its maximum (Y) in relation to a said cross section (17) which is between the radially inner and outer ends of the fan blade (1).
IPC 1-7
IPC 8 full level
F04D 29/38 (2006.01)
CPC (source: EP)
F04D 29/384 (2013.01)
Citation (search report)
- [X] GB 848278 A 19600914 - ENSO GUTZEIT OY
- [Y] US 2097389 A 19371026 - DE MEY RENE, et al
- [Y] GB 1171001 A 19691119 - ROTRON INC [US]
- [Y] FR 1583878 A 19691205
- [X] GB 376647 A 19320714 - WILLIAM ALEXANDER
- [X] US 4411598 A 19831025 - OKADA MAKOTO [JP]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0259061 A2 19880309; EP 0259061 A3 19890222; JP S6361800 A 19880317
DOCDB simple family (application)
EP 87307335 A 19870819; JP 20569186 A 19860901