Swirl-counter-swirl microjets for thermoacoustic instability suppression
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 29, 2014
Grant Date -
Jul 7, 2011
app pub date -
Nov 8, 2010
filing date -
Jan 5, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Combustor. The combustor includes an axially symmetric tube along with means for introducing fuel and air into the tube. A swirler is disposed within the tube to impart rotation in a first direction to the air/fuel mixture. A plurality of holes downstream of the swirler are disposed around the tube and offset at an angle relative to an inward normal to the tube wall. Air is injected through the offset holes to impart rotation to the air/fuel mixture in a second direction opposite to the first direction. A combustion chamber having a diameter larger than that of the tube receives and burns the air/fuel mixture from the tube.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
WO | A1 | WO2011084782 | Dec 21, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | SWIRL-COUNTER-SWIRL MICROJETS FOR THERMOACOUSTIC INSTABILITY SUPPRESSION | Jul 14, 2011 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MASSACHUSETTS INSTITUTE OF TECHNOLOGY | 77 MASSACHUSETTS AVENUE CAMBRIDGE MA 02139 |
International Classification(s)

- 2010 Application Filing Year
- F23M Class
- 34 Applications Filed
- 25 Patents Issued To-Date
- 73.53 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ghoniem, Ahmed F | Winchester, US | 11 | 34 |
# of filed Patents : 11 Total Citations : 34 | |||
LaBry, Zachary A | Somerville, US | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Shanbhogue, Santosh J | Cambridge, US | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Speth, Raymond L | Somerville, US | 2 | 12 |
# of filed Patents : 2 Total Citations : 12 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- F23M Class
- 28.57 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 29, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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Legal Events
Date | Code | Event | Description |
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Oct 29, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Oct 30, 2017 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551) year of fee payment: 4 |
Apr 29, 2014 | I | Issuance | |
Apr 09, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 07, 2011 | P | Published | |
Mar 08, 2011 | AS | ASSIGNMENT | free format text: CONFIRMATORY LICENSE;ASSIGNOR:MASSACHUSETTS INSTITUTE OF TECHNOLOGY;REEL/FRAME:033779/0926 Owner name: ENERGY, UNITED STATES DEPARTMENT OF, DISTRICT OF C Effective Date: Mar 08, 2011 |
Nov 16, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GHONIEM, AHMED F.;LABRY, ZACHARY A.;SHANBHOGUE, SANTOSH J.;AND OTHERS;REEL/FRAME:025410/0169 Owner name: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, MASSACHUSET Effective Date: Nov 16, 2010 |
Nov 08, 2010 | F | Filing | |
Jan 05, 2010 | PD | Priority Date |

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