Liner cooling structure with reduced pressure losses and gas turbine combustor having same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 8, 2022
Grant Date -
Oct 15, 2020
app pub date -
Mar 13, 2020
filing date -
Apr 10, 2019
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A liner cooling structure of a duct assembly reduces pressure loss generated in the compressed air flow for cooling the liner. The duct assembly includes a liner, a transition piece, and a flow sleeve, and the transition piece and the flow sleeve form a transition piece channel through which a main stream of compressed air is introduced to the duct assembly. The liner cooling structure includes a first flow passage through which the main stream of compressed air passes in a first direction; and a second flow passage formed as a plurality of inlet holes in the flow sleeve to communicate with the first flow passage and configured to pass an auxiliary stream of compressed air in a second direction from outside the flow sleeve to inside the flow sleeve, the auxiliary stream joining the main stream such that the second direction forms an acute angle with the first direction.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO LTD | 22 DOOSANVOLVO-RO SEONGSAN-GU CHANGWON 51711 |
International Classification(s)

- 2020 Application Filing Year
- F23M Class
- 28 Applications Filed
- 15 Patents Issued To-Date
- 53.58 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Myatlev, Alexander | Gimhae-si, KR | 5 | 8 |
# of filed Patents : 5 Total Citations : 8 | |||
Shershnyov, Borys | Changwon-si, KR | 20 | 84 |
# of filed Patents : 20 Total Citations : 84 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F23M Class
- 0 % this patent is cited more than
- 3 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 8, 2025 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 8, 2029 |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Apr 26, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEE, CHER CHUAN;REEL/FRAME:056920/0039 Owner name: HUS UNMANNED SYSTEMS PTE LTD, SINGAPORE Effective Date: Apr 26, 2018 |
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