Motor having universal fan end bracket

Details Motor having universal fan end bracket Motor having universal fan end bracket

1996-10-28

1998-02-03

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 58, 310 60R, 310 63, 310 89, 417368, 41742314, 4152081, H02K 520

Patent

active

057148198

ABSTRACT:
A fan end bracket for a motorized fan assembly has a plurality of curvilinear tapered air passages. Each air passage includes a flow port, such that air being moved by a rotating fan assembly is directed through the air passages and the flow ports. A skeletal motor assembly is affixed to one side of the end bracket such that the motor shaft is disposed through a shaft aperture in the end bracket. A rotating fan member is affixed to the motor shaft adjacent to the other side of the end bracket. A shroud member is provided to shroud the rotating fan member so as to cause the flow of air to be directed through the air passages. A baffle plate is interposed between the rotating fan member and the end bracket. The baffle plate includes a plurality of curvilinear scallops which correspond to the air passages in the end bracket. An effective flow port is created between the scallops of the baffle plate and the tapered ramp surfaces of the end brackets so the size of the effective flow port may be adjusted by merely changing the baffle plate so as to optimize the flow and pressure parameters of the fan for a particular motor size.

REFERENCES:
patent: 993985 (1911-05-01), Harker
patent: 3477384 (1969-11-01), Hlinka
patent: 3791772 (1974-02-01), Keimpema et al.
patent: 4111615 (1978-09-01), Watanabe
patent: 4679990 (1987-07-01), Yamaura et al.
patent: 5110266 (1992-05-01), Toyoshima et al.
patent: 5296769 (1994-03-01), Havens et al.
patent: 5451139 (1995-09-01), Tadiello
patent: 5454690 (1995-10-01), Wolfe et al.

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