Electric rotating machine with bearing seals

Details Electric rotating machine with bearing seals Electric rotating machine with bearing seals

2007-11-06

2007-11-06

Tamai, Karl (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S090000, C277S408000, C277S422000

Reexamination Certificate

active

11128368

ABSTRACT:
Hydrogen gas is circulated to cool an electric rotating machine main body, and brush seals are provided to contact a predetermined position on the outer circumferential surface of a rotating shaft. As a result, contact of a sealing oil and the hydrogen gas, contact of a lubricating oil and the sealing oil in the bearing, and leakage of the hydrogen gas outside the machine are prevented.

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Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 159401/1987 (Laid-Open No. 63873/1989) (Mitsubishi Heavy Industries, Ltd.), Apr. 24, 1989, Full text, Figs. 1 to 4.
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