SEAL STRUCTURE AND CENTRIFUGAL COMPRESSOR

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United States of America Patent

APP PUB NO 20130164119A1
SERIAL NO

13819860

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Abstract

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Provided is a seal structure (50, 60) configured to seal a clearance (31, 32) with respect to a flow path defined by a rotary body (20) rotated about a central shaft (P) and configured to allow passage of a mainstream, and a stationary body (10) disposed at the rotary body (20) to form the clearance (31, 32), the seal structure including a seal member (51A, 51B) installed at the clearance (31, 32) and configured to divide a fluid introduced from the mainstream into the clearance (31, 32) into a high pressure side and a low pressure side, and a shifting member (52A, 52B) installed at the high pressure side of the fluid in the clearance (31, 32), and configured to allow passage of the fluid and reduce a velocity component in a rotational direction of the rotary body (20) of the velocity component of the fluid.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 1008332 ?1008332
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION6-22 KAN-ON-SHIN-MACHI 4-CHOME NISHI-KU HIROSHIMA-SHI HIROSHIMA 7338553 ?7338553

International Classification(s)

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  • 2011 Application Filing Year
  • F04D Class
  • 829 Applications Filed
  • 694 Patents Issued To-Date
  • 83.72 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201120122013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakaniwa, Akihiro Tokyo, JP 57 169

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Patent Citation Ranking

  • 7 Citation Count
  • F04D Class
  • 8.61 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1310523711101 - 1011 - 2021 - 3031 - 4061 - 7071 - 8005101520253035404550556065707580859095100105110115

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