Fan with individual flow segments connected to a hub with a prefabricated thermoplastic strip
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United States of America Patent
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Sep 1, 1998
Grant Date -
N/A
app pub date -
Jul 15, 1996
filing date -
Jul 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
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).
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