Fluid reaction surfaces (i.e. – impellers) – Having clutch or brake means
Patent
1993-07-21
1994-10-25
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Having clutch or brake means
416229R, 416204R, F04D 2900
Patent
active
053583825
ABSTRACT:
A fan and fan drive assembly (11) is disclosed of the type including a fan drive (13) and a fan assembly (15). The fan drive (13) includes a body member (21) and a cover member (23), one of the members comprising a die-cast member and including a connecting portion (65; 165; 201) having a terminal portion (67, 69; 102; 267, 269). The fan (15) comprises a one-piece molded plastic member, and during the molding step, whichever of the body and cover defines the connecting portion is disposed within the molding die (M). The terminal portion of the connecting portion is disposed within a hub cavity (H), so that, when the moldable plastic material is injected into the hub cavity, it forms the fan hub (61) about, and rigidly connected to the terminal portion of the connecting portion. As a result, there is no need to bolt a fan assembly to the fan drive, thus eliminating the tapping of internally threaded holes in the body or cover of the fan drive, and eliminating the expense of bolts and the assembly time for bolting the fan to the fan drive.
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Eaton Corporation
Kasper L. J.
Look Edward K.
Sgantzos Mark
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