Fluid reaction surfaces (i.e. – impellers) – Specific drive or transmission means – Hand mixers
Patent
1997-03-25
1998-08-11
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
Specific drive or transmission means
Hand mixers
416169A, 474 94, 474178, F04D 2904
Patent
active
057918767
ABSTRACT:
An assembly (12) for moving air through a heat exchanger (10) comprising a shroud (14) for mating with a heat exchanger (10) and a fan (20) disposed in the rear opening (18) of the shroud (14). The fan (20) comprises a hub (22) having an axis (A) and blades (24) extending radially from the hub (22) to distal ends for moving air through the shroud (14). The assembly is characterized by a floating drive assembly (52, 54, 56) including an inner drive member (64), an outer drive member (68, 70), and a flexible transmission (74, 75) interconnecting the members for rotating the drive members together while allowing relative radial movement between the drive members as the drive members rotate the fan (20). A bearing ring mechanism (28, 30) interconnects the distal ends of the blades (24) and the shroud (14) for rotatably supporting the fan (20) solely by the shroud (14). The bearing ring mechanism (28, 30) includes a ring (28) surrounding and interconnecting the distal ends of the fan blades (24) a guideway (30) in the shroud (14) supporting and retaining a head (32) extending from the ring (28) for rotation relative to the shroud (14).
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BEHR America, Inc.
Verdier Christopher
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