Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Patent
1996-07-15
1998-09-01
Denion, Thomas E.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Radially extending web or end plate
416186R, 416194, 416230, 416213A, B63H 116
Patent
active
058001280
ABSTRACT:
This fan is provided with an impeller (1), having a hub (2), and with a casing surrounding the impeller (1). The impeller (1) has individual flow segments (4) connected to the hub (2) and to one another and in each case enclosing a flow duct (5), and a shaft connected to the hub (2) and extending along an axis (3). The object is to provide a fan which has an impeller which can be easily produced from a plastic and is suitable for comparatively high operating speeds. This is achieved by the flow segments (4) being connected with a form fit to the hub (2), and by the fastening of the flow segments (4) being reinforced by means of at least one shrouding (13, 14) of a prefabricated thermoplastic strip reinforced with continuous fibers, the thermoplastic strip having been briefly heated and fused with the layer respectively applied previously during the winding of the shrouding (13, 14).
REFERENCES:
patent: 1873974 (1932-08-01), Meyer
patent: 2155231 (1939-04-01), Hubbard et al.
patent: 3070844 (1963-01-01), Warnken
patent: 3515501 (1970-06-01), Palfreyman et al.
patent: 3764231 (1973-10-01), Hachiya et al.
patent: 4676722 (1987-06-01), Marchal et al.
Bodmer Urs
Mallick Vishal
ABB Research Ltd.
Denion Thomas E.
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