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Stator Blade Segment And Steam Turbine Provided With Same
Abstract: This stator blade segment comprises a circumferentially extending outer blade ring, a stator blade extending radially inward from the outer blade ring, and a sealing member. The stator blade has a cavity that is formed in the interior of the blade and that communicates with the surface of the blade. The outer blade ring has a blade ring body and two blade ring protrusions. The two blade ring protrusions protrude radially outward from an anti-gas path surface of the blade ring body and face each other across a gap in an axial direction, and together with a casing, a drain recovery space is formed between the two blade ring protrusions. The blade ring body has a blade surface drain recovery passage that allows communication between the cavity and the drain recovery space. One of the two blade ring protrusions has a sealing surface. The sealing member is positioned between part of the casing and the sealing surface of the one blade ring protrusion, and the sealing member is in contact with the sealing surface.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
08 February 2023
Publication Number
07/2023
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
IPRDEL@LAKSHMISRI.COM
Parent Application
Patent Number
Legal Status
Grant Date
2025-02-07
Renewal Date
Applicants
MITSUBISHI HEAVY INDUSTRIES, LTD.
2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo
1008332
Inventors
1. SAKASHITA Kenichi
c/o Mitsubishi Hitachi Power Systems, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa
2208401
2. DANNO Shouhei
c/o Mitsubishi Hitachi Power Systems, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa
2208401
Specification
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
| 43 | Samir Kumar Choudhary | 2025-02-07 |
| 43 | Samir Kumar Choudhary | 2025-02-07 |
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202347008195-FORM 3 [26-10-2023(online)].pdf | 2023-10-26 |
| 1 | 202347008195-IntimationOfGrant07-02-2025.pdf | 2025-02-07 |
| 1 | 202347008195.pdf | 2023-02-08 |
| 2 | 202347008195-ABSTRACT [01-09-2023(online)].pdf | 2023-09-01 |
| 2 | 202347008195-PatentCertificate07-02-2025.pdf | 2025-02-07 |
| 2 | 202347008195-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [08-02-2023(online)].pdf | 2023-02-08 |
| 3 | 202347008195-CLAIMS [01-09-2023(online)].pdf | 2023-09-01 |
| 3 | 202347008195-FORM 3 [26-10-2023(online)].pdf | 2023-10-26 |
| 3 | 202347008195-STATEMENT OF UNDERTAKING (FORM 3) [08-02-2023(online)].pdf | 2023-02-08 |
| 4 | 202347008195-REQUEST FOR EXAMINATION (FORM-18) [08-02-2023(online)].pdf | 2023-02-08 |
| 4 | 202347008195-DRAWING [01-09-2023(online)].pdf | 2023-09-01 |
| 4 | 202347008195-ABSTRACT [01-09-2023(online)].pdf | 2023-09-01 |
| 5 | 202347008195-POWER OF AUTHORITY [08-02-2023(online)].pdf | 2023-02-08 |
| 5 | 202347008195-FER_SER_REPLY [01-09-2023(online)].pdf | 2023-09-01 |
| 5 | 202347008195-CLAIMS [01-09-2023(online)].pdf | 2023-09-01 |
| 6 | 202347008195-OTHERS [01-09-2023(online)].pdf | 2023-09-01 |
| 6 | 202347008195-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [08-02-2023(online)].pdf | 2023-02-08 |
| 6 | 202347008195-DRAWING [01-09-2023(online)].pdf | 2023-09-01 |
| 7 | 202347008195-FORM 3 [31-08-2023(online)].pdf | 2023-08-31 |
| 7 | 202347008195-FORM 18 [08-02-2023(online)].pdf | 2023-02-08 |
| 7 | 202347008195-FER_SER_REPLY [01-09-2023(online)].pdf | 2023-09-01 |
| 8 | 202347008195-FORM 1 [08-02-2023(online)].pdf | 2023-02-08 |
| 8 | 202347008195-Information under section 8(2) [31-08-2023(online)].pdf | 2023-08-31 |
| 8 | 202347008195-OTHERS [01-09-2023(online)].pdf | 2023-09-01 |
| 9 | 202347008195-DRAWINGS [08-02-2023(online)].pdf | 2023-02-08 |
| 9 | 202347008195-FORM 3 [28-06-2023(online)].pdf | 2023-06-28 |
| 9 | 202347008195-FORM 3 [31-08-2023(online)].pdf | 2023-08-31 |
| 10 | 202347008195-DECLARATION OF INVENTORSHIP (FORM 5) [08-02-2023(online)].pdf | 2023-02-08 |
| 10 | 202347008195-FER.pdf | 2023-05-01 |
| 10 | 202347008195-Information under section 8(2) [31-08-2023(online)].pdf | 2023-08-31 |
| 11 | 202347008195-COMPLETE SPECIFICATION [08-02-2023(online)].pdf | 2023-02-08 |
| 11 | 202347008195-Correspondence_Form1, Translator Certificate_02-03-2023.pdf | 2023-03-02 |
| 11 | 202347008195-FORM 3 [28-06-2023(online)].pdf | 2023-06-28 |
| 12 | 202347008195-FER.pdf | 2023-05-01 |
| 12 | 202347008195-Proof of Right [14-02-2023(online)].pdf | 2023-02-14 |
| 13 | 202347008195-COMPLETE SPECIFICATION [08-02-2023(online)].pdf | 2023-02-08 |
| 13 | 202347008195-Correspondence_Form1, Translator Certificate_02-03-2023.pdf | 2023-03-02 |
| 14 | 202347008195-Proof of Right [14-02-2023(online)].pdf | 2023-02-14 |
| 14 | 202347008195-FER.pdf | 2023-05-01 |
| 14 | 202347008195-DECLARATION OF INVENTORSHIP (FORM 5) [08-02-2023(online)].pdf | 2023-02-08 |
| 15 | 202347008195-COMPLETE SPECIFICATION [08-02-2023(online)].pdf | 2023-02-08 |
| 15 | 202347008195-DRAWINGS [08-02-2023(online)].pdf | 2023-02-08 |
| 15 | 202347008195-FORM 3 [28-06-2023(online)].pdf | 2023-06-28 |
| 16 | 202347008195-DECLARATION OF INVENTORSHIP (FORM 5) [08-02-2023(online)].pdf | 2023-02-08 |
| 16 | 202347008195-FORM 1 [08-02-2023(online)].pdf | 2023-02-08 |
| 16 | 202347008195-Information under section 8(2) [31-08-2023(online)].pdf | 2023-08-31 |
| 17 | 202347008195-FORM 3 [31-08-2023(online)].pdf | 2023-08-31 |
| 17 | 202347008195-DRAWINGS [08-02-2023(online)].pdf | 2023-02-08 |
| 17 | 202347008195-FORM 18 [08-02-2023(online)].pdf | 2023-02-08 |
| 18 | 202347008195-OTHERS [01-09-2023(online)].pdf | 2023-09-01 |
| 18 | 202347008195-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [08-02-2023(online)].pdf | 2023-02-08 |
| 18 | 202347008195-FORM 1 [08-02-2023(online)].pdf | 2023-02-08 |
| 19 | 202347008195-FER_SER_REPLY [01-09-2023(online)].pdf | 2023-09-01 |
| 19 | 202347008195-FORM 18 [08-02-2023(online)].pdf | 2023-02-08 |
| 19 | 202347008195-POWER OF AUTHORITY [08-02-2023(online)].pdf | 2023-02-08 |
| 20 | 202347008195-DRAWING [01-09-2023(online)].pdf | 2023-09-01 |
| 20 | 202347008195-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [08-02-2023(online)].pdf | 2023-02-08 |
| 20 | 202347008195-REQUEST FOR EXAMINATION (FORM-18) [08-02-2023(online)].pdf | 2023-02-08 |
| 21 | 202347008195-CLAIMS [01-09-2023(online)].pdf | 2023-09-01 |
| 21 | 202347008195-POWER OF AUTHORITY [08-02-2023(online)].pdf | 2023-02-08 |
| 21 | 202347008195-STATEMENT OF UNDERTAKING (FORM 3) [08-02-2023(online)].pdf | 2023-02-08 |
| 22 | 202347008195-ABSTRACT [01-09-2023(online)].pdf | 2023-09-01 |
| 22 | 202347008195-REQUEST FOR EXAMINATION (FORM-18) [08-02-2023(online)].pdf | 2023-02-08 |
| 22 | 202347008195-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [08-02-2023(online)].pdf | 2023-02-08 |
| 23 | 202347008195-FORM 3 [26-10-2023(online)].pdf | 2023-10-26 |
| 23 | 202347008195-STATEMENT OF UNDERTAKING (FORM 3) [08-02-2023(online)].pdf | 2023-02-08 |
| 23 | 202347008195.pdf | 2023-02-08 |
| 24 | 202347008195-PatentCertificate07-02-2025.pdf | 2025-02-07 |
| 24 | 202347008195-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [08-02-2023(online)].pdf | 2023-02-08 |
| 25 | 202347008195-IntimationOfGrant07-02-2025.pdf | 2025-02-07 |
| 25 | 202347008195.pdf | 2023-02-08 |
Search Strategy
| 1 | 202347008195E_28-04-2023.pdf |