Open drip-proof machinery cooling system using totally enclosed

Details Open drip-proof machinery cooling system using totally enclosed Open drip-proof machinery cooling system using totally enclosed

1987-05-21

1988-08-23

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 63, 310 89, H02K 902

Patent

active

047663375

ABSTRACT:
An airflow passageway structure for cooling open drip-proof rotating electric machinery utilizes a totally enclosed shaft bearing bracket spaced apart axially from a frame member, and an air inlet ring overlapping the gap between the frame member and the bearing bracket. Incoming cooling air moves axially along the air inlet ring, then moves radially inward between the bearing bracket and frame member. The cooling air then moves past an air deflector, a rotor or shaft mounted fan and finally exits from the machinery at ports located intermediate the ends of the frame member.

REFERENCES:
patent: 1961387 (1934-06-01), Pfleger
patent: 2347517 (1944-04-01), Smalley
patent: 2522675 (1950-09-01), Hoover
patent: 3021442 (1962-02-01), Rodak
patent: 3027470 (1962-03-01), Atherton
patent: 3512024 (1970-05-01), Papa
patent: 3518467 (1970-06-01), Wightman
patent: 4275321 (1981-06-01), Shimamato et al.

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