Electric motor

Details Electric motor Electric motor

1987-06-17

1989-04-11

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

384135, 384478, H02K 516

Patent

active

048209481

ABSTRACT:
A d.c. electric motor has an oil collector located fast on a motor shaft, between a lubricated bearing and a commutator. Collector is of rubber and forms an oil tight seal with the motor shaft so that oil will migrate into a ring portion where the centrifugal force of the rotating motor will retain the oil in the ring. Preferably the collector has an oleophobic coating thereon.

REFERENCES:
patent: 1978739 (1934-10-01), Brittian, Jr.
patent: 2483013 (1949-09-01), Kopprasch
patent: 3013167 (1961-12-01), Bobula
patent: 3188153 (1965-06-01), Turk
patent: 3624434 (1971-11-01), Dafler
patent: 3760209 (1973-09-01), Hult
patent: 3789251 (1974-01-01), King
patent: 3794869 (1974-02-01), Apostoleris
patent: 4198584 (1980-04-01), Otto
patent: 4362342 (1982-12-01), Bushor et al.
patent: 4649306 (1987-03-01), Yamashita

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