EP 1032766 B1 20020327 - FAN WHEEL
Title (en)
FAN WHEEL
Title (de)
LÜFTERRAD
Title (fr)
ROUE DE VENTILATEUR
Publication
Application
Priority
- DE 19751729 A 19971121
- EP 9807507 W 19981121
Abstract (en)
[origin: DE19751729A1] The invention relates to a fan wheel for a turbocharger. The fan wheel (1) consists of a base body comprising a central axis of rotation (5) formed by two congruent opposing cover discs (2, 3). Fan blades (6) are arranged between the front faces of the cover discs facing each other. The fan blades (6) are formed by a single piece on at least one of the cover discs (2, 3) and comprise an axial locating face (30) on which an opposing axial locating face (31) of the other cover disc (2, 3) is located. Fixing means are provided in the area of the locating faces (8, 9) for non-detachable interconnection of the cover discs (2, 3). In order to manufacture the fan wheel (1) without balancing, the cover discs (2, 3) are made of material that is suitable for stamping and the fan blades (6) are stamped axially from the material of a cover disc (2, 3). The edges (22a, 22b) between the plane of the cover disc (2, 3) and the side wall (19a, 19b) of the fan blade (6) standing substantially at a right angle in relation to the plane of the cover plate (2, 3) and the edge (21a, 21b) between the side wall (19a, 19b) of the locating face (30, 31) are rounded with a radius (R1, R2) of approximately 0.5 to 2 mm.
IPC 1-7
IPC 8 full level
F04D 29/28 (2006.01); F04D 29/30 (2006.01)
CPC (source: EP US)
F04D 29/023 (2013.01 - EP US); F04D 29/281 (2013.01 - EP US); F04D 29/30 (2013.01 - EP US); F05D 2230/54 (2013.01 - EP US); Y10T 29/49321 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19751729 A1 19990602; DE 19751729 C2 20021128; DE 59803561 D1 20020502; EP 1032766 A1 20000906; EP 1032766 B1 20020327; US 6386831 B1 20020514; WO 9927258 A1 19990603
DOCDB simple family (application)
DE 19751729 A 19971121; DE 59803561 T 19981121; EP 9807507 W 19981121; EP 98962382 A 19981121; US 55490300 A 20000519