Turbine Blade And Steam Turbine

Abstract: A turbine blade (21) has a ventral surface (21P) that extends in the radial direction, which intersects a vapor flow direction, and faces the upstream side of the flow direction. A slit (5) is formed on the downstream side in the ventral surface (21P) and captures droplets generated as a result of the liquefaction of vapor. A region of micro recesses/protrusions (6), which guides droplets adhered to the ventral surface (21P) in the radial direction toward the slit (5) from the upstream side to the downstream side, is formed further upstream than the slit (5). In the region of micro recesses/protrusions (6), resistance to the flow of droplets gradually increases from the inside to the outside in the radial direction.

Patent Information

Application #

Filing Date

23 August 2021

Publication Number

36/2021

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

IPRDEL@LAKSHMISRI.COM

Parent Application

Patent Number

Legal Status

Grant Date

2023-12-22

Renewal Date

Applicants

MITSUBISHI POWER, LTD.

3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401

Inventors

1. MIZUMI Shunsuke

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

2. DUAN Chongfei

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

3. SASAO Yasuhiro

c/o Mitsubishi Hitachi Power Systems, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401

4. TABATA Soichiro

c/o Mitsubishi Hitachi Power Systems, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401

Specification

Documents

Application Documents

#	Name	Date
1	202147038180-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [23-08-2021(online)].pdf	2021-08-23
2	202147038180-STATEMENT OF UNDERTAKING (FORM 3) [23-08-2021(online)].pdf	2021-08-23
3	202147038180-REQUEST FOR EXAMINATION (FORM-18) [23-08-2021(online)].pdf	2021-08-23
4	202147038180-POWER OF AUTHORITY [23-08-2021(online)].pdf	2021-08-23
5	202147038180-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105) [23-08-2021(online)].pdf	2021-08-23
6	202147038180-FORM 18 [23-08-2021(online)].pdf	2021-08-23
7	202147038180-FORM 1 [23-08-2021(online)].pdf	2021-08-23
8	202147038180-DRAWINGS [23-08-2021(online)].pdf	2021-08-23
9	202147038180-DECLARATION OF INVENTORSHIP (FORM 5) [23-08-2021(online)].pdf	2021-08-23
10	202147038180-COMPLETE SPECIFICATION [23-08-2021(online)].pdf	2021-08-23
11	202147038180-Proof of Right [27-08-2021(online)].pdf	2021-08-27
12	202147038180.pdf	2021-10-19
13	202147038180-FORM 3 [13-01-2022(online)].pdf	2022-01-13
14	202147038180-FER.pdf	2022-02-26
15	202147038180-PA [25-04-2022(online)].pdf	2022-04-25
16	202147038180-ASSIGNMENT DOCUMENTS [25-04-2022(online)].pdf	2022-04-25
17	202147038180-8(i)-Substitution-Change Of Applicant - Form 6 [25-04-2022(online)].pdf	2022-04-25
18	202147038180-FORM 3 [30-05-2022(online)].pdf	2022-05-30
19	202147038180-Information under section 8(2) [17-08-2022(online)].pdf	2022-08-17
20	202147038180-certified copy of translation [17-08-2022(online)].pdf	2022-08-17
21	202147038180-OTHERS [19-08-2022(online)].pdf	2022-08-19
22	202147038180-FER_SER_REPLY [19-08-2022(online)].pdf	2022-08-19
23	202147038180-CLAIMS [19-08-2022(online)].pdf	2022-08-19
24	202147038180-PatentCertificate22-12-2023.pdf	2023-12-22
25	202147038180-IntimationOfGrant22-12-2023.pdf	2023-12-22

Search Strategy

1	202147038180E_25-02-2022.pdf