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A Centrifugal Fan For Imrpoved Heat Transfer In Belt Driven Stator Motor And The Method Of Its Uses

Abstract: The present invention discloses a centrifugal fan in a belt-driven starter generator (BSG) for effective convective heat transfer without compromising overall geometry and configuration of the fan base and blade profile. The inner sides of the blades of the centrifugal fans i.e front fan (4) and rear fan (10) are cut in halves as shown in FIG. 5(a) to increase the air suction area and to improve the convective heat transfer between the stator end windings (14), heat fins, ring magnet (11) and the hall sensors in the rear side of the BSG. The proposed invention enhances the effective forced convection heat in the rear side for the heat sink in BSG to perform at its maximum efficiency and thereby increasing the overall durability of BSG.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
13 April 2021
Publication Number
41/2022
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
ipr@puthrans.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-01-24
Renewal Date

Applicants

SONA BLW PRECISION FORGINGS LIMITED
SONA ENCLAVE VILLAGE BEGUMPUR KHATOLA, SECTOR 35 GURGAON Gurgaon Haryana 122004.

Inventors

1. Dhwaraknath, Roshan
B31, S3, Alfex Flat, 15th Cross Street, Hindu Colony, Nanganallur, Chennai, Tamil Nadu, India 600 061.
2. Radhakrishnan, Muruganandam
15A, Ramasamay street, Radha Nagar, Chrompet, Chennai, Tamil Nadu, Inida 600 044.
3. Chakrapani Rao, Praveen
Flat 2, Sreela, 22 Gilchrist Avenue, Chetpet, Chennai, Tamil Nadu, India 500 031.

Specification

DESC:As attached herewith ,CLAIMS:As attached herewith

Documents

Application Documents

# Name Date
1 202141017209-Form5_As Filed_13-04-2021.pdf 2021-04-13
2 202141017209-Form3_As Filed_13-04-2021.pdf 2021-04-13
3 202141017209-Form2 Title Page_Provisional_13-04-2021.pdf 2021-04-13
4 202141017209-Form1_As Filed_13-04-2021.pdf 2021-04-13
5 202141017209-POA [22-07-2021(online)].pdf 2021-07-22
6 202141017209-FORM 13 [22-07-2021(online)].pdf 2021-07-22
7 202141017209-AMENDED DOCUMENTS [22-07-2021(online)].pdf 2021-07-22
8 202141017209-PA [29-03-2022(online)].pdf 2022-03-29
9 202141017209-ASSIGNMENT DOCUMENTS [29-03-2022(online)].pdf 2022-03-29
10 202141017209-8(i)-Substitution-Change Of Applicant - Form 6 [29-03-2022(online)].pdf 2022-03-29
11 202141017209-ENDORSEMENT BY INVENTORS [11-04-2022(online)].pdf 2022-04-11
12 202141017209-DRAWING [11-04-2022(online)].pdf 2022-04-11
13 202141017209-COMPLETE SPECIFICATION [11-04-2022(online)].pdf 2022-04-11
14 202141017209-FORM 18 [13-06-2022(online)].pdf 2022-06-13
15 202141017209-FER.pdf 2022-11-03
16 202141017209-Retyped Pages under Rule 14(1) [31-01-2023(online)].pdf 2023-01-31
17 202141017209-FER_SER_REPLY [31-01-2023(online)].pdf 2023-01-31
18 202141017209-COMPLETE SPECIFICATION [31-01-2023(online)].pdf 2023-01-31
19 202141017209-2. Marked Copy under Rule 14(2) [31-01-2023(online)].pdf 2023-01-31
20 202141017209-PatentCertificate24-01-2024.pdf 2024-01-24
21 202141017209-IntimationOfGrant24-01-2024.pdf 2024-01-24

Search Strategy

1 7209E_02-11-2022.pdf

ERegister / Renewals

3rd: 29 Jan 2024

From 13/04/2023 - To 13/04/2024

4th: 29 Jan 2024

From 13/04/2024 - To 13/04/2025

5th: 19 Mar 2025

From 13/04/2025 - To 13/04/2026