Water drain device of rotary electric machine

Details Water drain device of rotary electric machine Water drain device of rotary electric machine

1990-12-05

1991-12-31

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, H02K 510

Patent

active

050775030

ABSTRACT:
A water drain device of a revolving electric machine, wherein an oil reservoir chamber is formed at a position adjacent a bearing housing chamber in a housing having a rotor housing chamber and the bearing housing chamber, a rotor in the rotor housing chamber is supported by bearings in the bearing housing chambers, and an oil seal in slidable contact with the outer peripheral surface of the rotor is provided at a position adjacent the oil reservoir chamber. In the housing, an oil discharge channel opens in a direction in which gravity drains oil in the oil reservoir chamber out of the housing, a water discharge channel connects the rotor housing chamber and the vicinity of an outlet of the oil discharge channel, and an air vent channel connects the rotor housing chamber to the oil discharge channel through the oil reservoir chamber. A drain cover forming a fluid discharge channel is mounted in the vicinity of the outlet of the oil discharge channel and an outlet of the water discharge channel. The drain cover is inserted into a drain cover mounting groove. At least a pair of baffle plates are provided in a hollow portion of the drain cover.

REFERENCES:
patent: 4978875 (1990-12-01), Okamoto
patent: 4994699 (1991-02-01), Shina
patent: 5010265 (1991-04-01), Tanaka et al.

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