View All Documents & Correspondence
An Improved Method Of Sealing A Rotating Equipment In Hydro Generators
Abstract: An improved method of sealing a rotating equipment (35) in hydro-generators for high temperature applications is disclosed. The method comprising the steps of: manufacturing a plurality of metallic base holders (1) for forming a non-metallic brush seal (301) to be disposed on the rotating equipment (35) at an angle (8); marking and drilling of a plurality of holes (12) on inner surface (4) of the said metallic base holders (1) at an angle (11); inserting a plurality of non-metallic variable diameter bristles (2) into the said drilled holes (12) located at inner surface (4) of the metallic base holder (1) using automatic tufting process (20); circular ID trimming using a cutter (22) at free edge (19) of said inserted bristles for obtaining brush seal of required size (6); and assembling of said tufted base holders (1) carrying finish cut bristles (21) in an overlapping mode (10) one by one through a plurality of fixing holes (3) for forming the brush seal (301); characterized in that each said base holder (1) comprises of Aluminum and the said brush seal (301) is utilized for sealing of low speed rotating equipment (35) in an operating temperature ranging upto 250 degree C.
Notices, Deadlines & Correspondence
Patent Information
Applicants
BHARAT HEAVY ELECTRICALS LIMITED
Inventors
1. ASFAK ALI MOLLAH
2. MANISH AGRAWAL
Specification
An improved method of sealing a rotating equipment (35) in hydro-generators for high temperature applications is disclosed. The method comprising the steps of: manufacturing a plurality of metallic base holders (1) for forming a non-metallic brush seal (301) to be disposed on the rotating equipment (35) at an angle (8); marking and drilling of a plurality of holes (12) on inner surface (4) of the said metallic base holders (1) at an angle (11); inserting a plurality of non-metallic variable diameter bristles (2) into the said drilled holes (12) located at inner surface (4) of the metallic base holder (1) using automatic tufting process (20); circular ID trimming using a cutter (22) at free edge (19) of said inserted bristles for obtaining brush seal of required size (6); and assembling of said tufted base holders (1) carrying finish cut bristles (21) in an overlapping mode (10) one by one through a plurality of fixing holes (3) for forming the brush seal (301); characterized in that each said base holder (1) comprises of Aluminum and the said brush seal (301) is utilized for sealing of low speed rotating equipment (35) in an operating temperature ranging upto 250 degree C.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 201933029423-STATEMENT OF UNDERTAKING (FORM 3) [22-07-2019(online)].pdf | 2019-07-22 |
| 2 | 201933029423-PROOF OF RIGHT [22-07-2019(online)].pdf | 2019-07-22 |
| 3 | 201933029423-POWER OF AUTHORITY [22-07-2019(online)].pdf | 2019-07-22 |
| 4 | 201933029423-FORM 1 [22-07-2019(online)].pdf | 2019-07-22 |
| 5 | 201933029423-FIGURE OF ABSTRACT [22-07-2019(online)].pdf | 2019-07-22 |
| 6 | 201933029423-DRAWINGS [22-07-2019(online)].pdf | 2019-07-22 |
| 7 | 201933029423-DECLARATION OF INVENTORSHIP (FORM 5) [22-07-2019(online)].pdf | 2019-07-22 |
| 8 | 201933029423-COMPLETE SPECIFICATION [22-07-2019(online)].pdf | 2019-07-22 |
| 9 | 201933029423-FORM 18 [02-08-2019(online)].pdf | 2019-08-02 |
| 10 | 201933029423-FER.pdf | 2022-02-11 |
| 11 | 201933029423-OTHERS [08-08-2022(online)].pdf | 2022-08-08 |
| 12 | 201933029423-FER_SER_REPLY [08-08-2022(online)].pdf | 2022-08-08 |
| 13 | 201933029423-DRAWING [08-08-2022(online)].pdf | 2022-08-08 |
| 14 | 201933029423-COMPLETE SPECIFICATION [08-08-2022(online)].pdf | 2022-08-08 |
| 15 | 201933029423-PatentCertificate12-12-2023.pdf | 2023-12-12 |
| 16 | 201933029423-IntimationOfGrant12-12-2023.pdf | 2023-12-12 |
Search Strategy
| 1 | 201933029423searchE_25-01-2022.pdf |