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"Cooling Method And Cooling Device For A Single Flow Turbine"
Abstract: It is intended to effectively cool a dummy ring and a rotor disposed on the inner side of the dummy ring of a single-flow turbine and to suppress a decrease in thermal efficiency by preventing main steam from leaking to the dummy ring side. A cooling steam supply pipe 32 is provided in the dummy ring 2 6 of the single-flow turbine 10A and extraction steam of a boiler at 570°C or below is supplied to a clearance c between the dummy ring 2 6 and the turbine rotor 12 as cooling steam S4. The cooling steam S4 has lower temperature and higher pressure than leak steam S2 which is a portion of the main steam S1 leaking to the dummy ring 26 side. By supplying the cooling steam S4, the leak steam S2 is prevented from entering the dummy ring 2 6 side and the dummy ring 26, a welding part w and a second rotor part 12b with low heat resistance that are disposed on the inner side of the dummy ring 26 can be cooled.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
09 December 2011
Publication Number
08/2013
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2019-05-31
Renewal Date
Applicants
MITSUBISHI HEAVY INDUSTRIES , LTD.
16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 1088215, JAPAN
Inventors
1. SHIN NISHIMOTO
C/O MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 1088215, JAPAN
2. YOSHINORI TANAKA
C/O MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 1088215, JAPAN
3. TATSUAKI FUJIKAWA
C/O MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 1088215, JAPAN
Specification
NA
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 9687-delnp-2011-Form-3 (01-06-2012).pdf | 2012-06-01 |
| 1 | 9687-DELNP-2011-RELEVANT DOCUMENTS [16-09-2023(online)].pdf | 2023-09-16 |
| 2 | 9687-delnp-2011-Correspondence others-(01-06-2012).pdf | 2012-06-01 |
| 2 | 9687-DELNP-2011-RELEVANT DOCUMENTS [16-09-2022(online)].pdf | 2022-09-16 |
| 3 | 9687-DELNP-2011-RELEVANT DOCUMENTS [09-08-2021(online)].pdf | 2021-08-09 |
| 3 | 9687-delnp-2011-Form-5.pdf | 2012-07-02 |
| 4 | 9687-DELNP-2011-PROOF OF ALTERATION [15-02-2021(online)].pdf | 2021-02-15 |
| 4 | 9687-delnp-2011-Form-3.pdf | 2012-07-02 |
| 5 | 9687-DELNP-2011-RELEVANT DOCUMENTS [07-03-2020(online)].pdf | 2020-03-07 |
| 5 | 9687-delnp-2011-Form-2.pdf | 2012-07-02 |
| 6 | 9687-DELNP-2011-IntimationOfGrant31-05-2019.pdf | 2019-05-31 |
| 6 | 9687-delnp-2011-Form-18.pdf | 2012-07-02 |
| 7 | 9687-DELNP-2011-PatentCertificate31-05-2019.pdf | 2019-05-31 |
| 7 | 9687-delnp-2011-Form-1.pdf | 2012-07-02 |
| 8 | 9687-delnp-2011-Drawings.pdf | 2012-07-02 |
| 8 | 9687-DELNP-2011-Correspondence-240418.pdf | 2018-04-27 |
| 9 | 9687-delnp-2011-Description (Complete).pdf | 2012-07-02 |
| 9 | 9687-DELNP-2011-OTHERS-240418.pdf | 2018-04-27 |
| 10 | 9687-delnp-2011-Correspondence Others.pdf | 2012-07-02 |
| 10 | 9687-DELNP-2011-Power of Attorney-240418.pdf | 2018-04-27 |
| 11 | 9687-DELNP-2011-ABSTRACT [23-04-2018(online)].pdf | 2018-04-23 |
| 11 | 9687-delnp-2011-Claims.pdf | 2012-07-02 |
| 12 | 9687-delnp-2011-Abstract.pdf | 2012-07-02 |
| 12 | 9687-DELNP-2011-CLAIMS [23-04-2018(online)].pdf | 2018-04-23 |
| 13 | 9687-DELNP-2011-COMPLETE SPECIFICATION [23-04-2018(online)].pdf | 2018-04-23 |
| 13 | 9687-delnp-2011-GPA (04-07-2012).pdf | 2012-07-04 |
| 14 | 9687-delnp-2011-Correspondence others-(04-07-2012).pdf | 2012-07-04 |
| 14 | 9687-DELNP-2011-CORRESPONDENCE [23-04-2018(online)].pdf | 2018-04-23 |
| 15 | 9687-delnp-2011-Correspondence Others-(30-07-2014).pdf | 2014-07-30 |
| 15 | 9687-DELNP-2011-DRAWING [23-04-2018(online)].pdf | 2018-04-23 |
| 16 | 9687-DELNP-2011-FER_SER_REPLY [23-04-2018(online)].pdf | 2018-04-23 |
| 16 | POWER OF AUTHORITY.pdf ONLINE | 2015-02-13 |
| 17 | FORM 6.pdf ONLINE | 2015-02-13 |
| 17 | 9687-DELNP-2011-OTHERS [23-04-2018(online)].pdf | 2018-04-23 |
| 18 | 9687-DELNP-2011-PETITION UNDER RULE 137 [21-04-2018(online)]-1.pdf | 2018-04-21 |
| 18 | ASSIGNMENT DOCUMENTS.pdf ONLINE | 2015-02-13 |
| 19 | 9687-delnp-2011-GPA-(16-02-2015).pdf | 2015-02-16 |
| 19 | 9687-DELNP-2011-PETITION UNDER RULE 137 [21-04-2018(online)].pdf | 2018-04-21 |
| 20 | 9687-DELNP-2011-FER.pdf | 2017-10-31 |
| 20 | 9687-delnp-2011-Form-6-Copy-(16-02-2015).pdf | 2015-02-16 |
| 21 | 9687-delnp-2011-Form-2-(16-02-2015).pdf | 2015-02-16 |
| 21 | Form 3 [28-11-2016(online)].pdf | 2016-11-28 |
| 22 | 9687-delnp-2011-Form-1-(16-02-2015).pdf | 2015-02-16 |
| 22 | ASSIGNMENT DOCUMENTS.pdf | 2015-03-13 |
| 23 | 9687-delnp-2011-Correspondance Others-(16-02-2015).pdf | 2015-02-16 |
| 23 | FORM 6.pdf | 2015-03-13 |
| 24 | POWER OF AUTHORITY.pdf | 2015-03-13 |
| 24 | 9687-delnp-2011-Assignment(16-02-2015).pdf | 2015-02-16 |
| 25 | 9687-delnp-2011-Assignment(16-02-2015).pdf | 2015-02-16 |
| 25 | POWER OF AUTHORITY.pdf | 2015-03-13 |
| 26 | 9687-delnp-2011-Correspondance Others-(16-02-2015).pdf | 2015-02-16 |
| 26 | FORM 6.pdf | 2015-03-13 |
| 27 | 9687-delnp-2011-Form-1-(16-02-2015).pdf | 2015-02-16 |
| 27 | ASSIGNMENT DOCUMENTS.pdf | 2015-03-13 |
| 28 | 9687-delnp-2011-Form-2-(16-02-2015).pdf | 2015-02-16 |
| 28 | Form 3 [28-11-2016(online)].pdf | 2016-11-28 |
| 29 | 9687-DELNP-2011-FER.pdf | 2017-10-31 |
| 29 | 9687-delnp-2011-Form-6-Copy-(16-02-2015).pdf | 2015-02-16 |
| 30 | 9687-delnp-2011-GPA-(16-02-2015).pdf | 2015-02-16 |
| 30 | 9687-DELNP-2011-PETITION UNDER RULE 137 [21-04-2018(online)].pdf | 2018-04-21 |
| 31 | 9687-DELNP-2011-PETITION UNDER RULE 137 [21-04-2018(online)]-1.pdf | 2018-04-21 |
| 31 | ASSIGNMENT DOCUMENTS.pdf ONLINE | 2015-02-13 |
| 32 | 9687-DELNP-2011-OTHERS [23-04-2018(online)].pdf | 2018-04-23 |
| 32 | FORM 6.pdf ONLINE | 2015-02-13 |
| 33 | 9687-DELNP-2011-FER_SER_REPLY [23-04-2018(online)].pdf | 2018-04-23 |
| 33 | POWER OF AUTHORITY.pdf ONLINE | 2015-02-13 |
| 34 | 9687-delnp-2011-Correspondence Others-(30-07-2014).pdf | 2014-07-30 |
| 34 | 9687-DELNP-2011-DRAWING [23-04-2018(online)].pdf | 2018-04-23 |
| 35 | 9687-delnp-2011-Correspondence others-(04-07-2012).pdf | 2012-07-04 |
| 35 | 9687-DELNP-2011-CORRESPONDENCE [23-04-2018(online)].pdf | 2018-04-23 |
| 36 | 9687-delnp-2011-GPA (04-07-2012).pdf | 2012-07-04 |
| 36 | 9687-DELNP-2011-COMPLETE SPECIFICATION [23-04-2018(online)].pdf | 2018-04-23 |
| 37 | 9687-delnp-2011-Abstract.pdf | 2012-07-02 |
| 37 | 9687-DELNP-2011-CLAIMS [23-04-2018(online)].pdf | 2018-04-23 |
| 38 | 9687-DELNP-2011-ABSTRACT [23-04-2018(online)].pdf | 2018-04-23 |
| 38 | 9687-delnp-2011-Claims.pdf | 2012-07-02 |
| 39 | 9687-delnp-2011-Correspondence Others.pdf | 2012-07-02 |
| 39 | 9687-DELNP-2011-Power of Attorney-240418.pdf | 2018-04-27 |
| 40 | 9687-delnp-2011-Description (Complete).pdf | 2012-07-02 |
| 40 | 9687-DELNP-2011-OTHERS-240418.pdf | 2018-04-27 |
| 41 | 9687-DELNP-2011-Correspondence-240418.pdf | 2018-04-27 |
| 41 | 9687-delnp-2011-Drawings.pdf | 2012-07-02 |
| 42 | 9687-DELNP-2011-PatentCertificate31-05-2019.pdf | 2019-05-31 |
| 42 | 9687-delnp-2011-Form-1.pdf | 2012-07-02 |
| 43 | 9687-DELNP-2011-IntimationOfGrant31-05-2019.pdf | 2019-05-31 |
| 43 | 9687-delnp-2011-Form-18.pdf | 2012-07-02 |
| 44 | 9687-DELNP-2011-RELEVANT DOCUMENTS [07-03-2020(online)].pdf | 2020-03-07 |
| 44 | 9687-delnp-2011-Form-2.pdf | 2012-07-02 |
| 45 | 9687-DELNP-2011-PROOF OF ALTERATION [15-02-2021(online)].pdf | 2021-02-15 |
| 45 | 9687-delnp-2011-Form-3.pdf | 2012-07-02 |
| 46 | 9687-DELNP-2011-RELEVANT DOCUMENTS [09-08-2021(online)].pdf | 2021-08-09 |
| 46 | 9687-delnp-2011-Form-5.pdf | 2012-07-02 |
| 47 | 9687-delnp-2011-Correspondence others-(01-06-2012).pdf | 2012-06-01 |
| 47 | 9687-DELNP-2011-RELEVANT DOCUMENTS [16-09-2022(online)].pdf | 2022-09-16 |
| 48 | 9687-delnp-2011-Form-3 (01-06-2012).pdf | 2012-06-01 |
| 48 | 9687-DELNP-2011-RELEVANT DOCUMENTS [16-09-2023(online)].pdf | 2023-09-16 |
Search Strategy
| 1 | 9687_delnp_2011_25-04-2017.pdf |