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Shaft Sealing Device And Rotating Machine Provided Therewith
Abstract: Disclosed is a shaft sealing device (100) including: a housing (60) in which an annular recessed portion (61) is formed and which is fixed to a stator; a sealing body (20), a radially outer portion of which is accommodated by the annular recessed portion (61); and a high pressure-side sealing plate (40) that is disposed along the sealing body (20) in a high pressure region (Hs). An inflow groove (66) is formed in any member of the housing (60), the high pressure-side sealing plate (40), and the sealing body (20) such that a fluid flows through the sealing body (20) from a low pressure region (Ls) during a non-normal operation in which pressure in the high pressure region (Ls) is higher than pressure in the high pressure region (Hs). A communication path (69) is formed in the housing (60) such that the inflow groove (66) and a space in the high pressure region (Hs) communicate with each other via the communication path (69).
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUBISHI HEAVY INDUSTRIES LTD.
Inventors
1. NISHIMOTO Shin
2. UEHARA Hidekazu
3. NAKANO Takashi
4. SHINOHARA Tanehiro
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | Power of Attorney [12-04-2016(online)].pdf | 2016-04-12 |
| 2 | Form 5 [12-04-2016(online)].pdf | 2016-04-12 |
| 3 | Form 3 [12-04-2016(online)].pdf | 2016-04-12 |
| 4 | Form 18 [12-04-2016(online)].pdf | 2016-04-12 |
| 5 | Form 1 [12-04-2016(online)].pdf | 2016-04-12 |
| 6 | Drawing [12-04-2016(online)].pdf | 2016-04-12 |
| 7 | Description(Complete) [12-04-2016(online)].pdf | 2016-04-12 |
| 8 | 201647012911.pdf | 2016-06-08 |
| 9 | Marked Copy [06-07-2016(online)].pdf | 2016-07-06 |
| 10 | Form 13 [06-07-2016(online)].pdf | 2016-07-06 |
| 11 | Description(Complete) [06-07-2016(online)].pdf | 2016-07-06 |
| 12 | ABSTRACT-201647012911.jpg | 2016-08-02 |
| 13 | Form 3 [29-08-2016(online)].pdf | 2016-08-29 |
| 14 | Marked Copy [22-09-2016(online)].pdf | 2016-09-22 |
| 15 | Form 13 [22-09-2016(online)].pdf | 2016-09-22 |
| 16 | Description(Complete) [22-09-2016(online)].pdf | 2016-09-22 |
| 17 | Petition Under Rule 138 [19-10-2016(online)].pdf | 2016-10-19 |
| 18 | Other Patent Document [19-10-2016(online)].pdf | 2016-10-19 |
| 19 | Other Document [19-10-2016(online)].pdf | 2016-10-19 |
| 20 | 201647012911-FER.pdf | 2019-02-20 |
| 21 | 201647012911-FORM 3 [12-08-2019(online)].pdf | 2019-08-12 |
| 22 | 201647012911-OTHERS [19-08-2019(online)].pdf | 2019-08-19 |
| 23 | 201647012911-FER_SER_REPLY [19-08-2019(online)].pdf | 2019-08-19 |
| 24 | 201647012911-CLAIMS [19-08-2019(online)].pdf | 2019-08-19 |
| 25 | 201647012911-RELEVANT DOCUMENTS [14-05-2021(online)].pdf | 2021-05-14 |
| 26 | 201647012911-PA [14-05-2021(online)].pdf | 2021-05-14 |
| 27 | 201647012911-FORM 13 [14-05-2021(online)].pdf | 2021-05-14 |
| 28 | 201647012911-ASSIGNMENT DOCUMENTS [14-05-2021(online)].pdf | 2021-05-14 |
| 29 | 201647012911-8(i)-Substitution-Change Of Applicant - Form 6 [14-05-2021(online)].pdf | 2021-05-14 |
| 30 | 201647012911-Response to office action [02-07-2021(online)].pdf | 2021-07-02 |
| 31 | 201647012911-PatentCertificate27-01-2022.pdf | 2022-01-27 |
| 32 | 201647012911-IntimationOfGrant27-01-2022.pdf | 2022-01-27 |
| 33 | 201647012911-RELEVANT DOCUMENTS [16-09-2023(online)].pdf | 2023-09-16 |
Search Strategy
| 1 | 201647012911_31-10-2018.pdf |