Seal structure and rotary machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10385714
APP PUB NO 20170022838A1
SERIAL NO

15039580

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a seal structure that seals a gap between a first structure and a second structure which faces the first structure in a radial direction and rotates relative to the first structure, one of the first structure and the second structure has a base surface and a step surface that protrudes toward the other side from the base surface, and the other is provided with: a first fin which extends toward the step surface and forms a first gap between the step surface; a second fin that, on the downstream side of the first fin, extends toward the base surface and forms a second gap between the base surface; and a protrusion part that is disposed between the first fin and the second fin and that divides a leak flow, into a first vortex along the first fin and a second vortex along the second fin.

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Patent Owner(s)

  • MITSUBISHI HITACHI POWER SYSTEMS, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuwamura, Yoshihiro Tokyo, JP 48 218
Matsumoto, Kazuyuki Tokyo, JP 63 371
Nishikawa, Toyoharu Tokyo, JP 20 49
Nishimoto, Shin Tokyo, JP 57 327
Oyama, Hiroharu Tokyo, JP 34 197
Tanaka, Yoshinori Tokyo, JP 667 9362
Uehara, Hidekazu Tokyo, JP 52 362

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