Acoustic igniter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 3, 2015
Grant Date -
N/A
app pub date -
Feb 15, 2012
filing date -
Feb 15, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An acoustic resonance igniter uses gas expanding through a nozzle to form a sonic, or under-expanded supersonic, jet directed against the opening of a blind resonance cavity in a central body, setting up a high-frequency sonic resonance which heats the gas within the cavity. A pintle extends coaxially with the nozzle and injects liquid propellant into the jet. The liquid propellant ignites with the heated gas within the resonance cavity forming combustion gases. The combustion gases flow through openings in a flange which supports the resonance cavity into a combustion chamber in the same direction as the gas jet flows. The liquid propellant is injected from within the support flange in the direction of combustion gas flow to film cool the combustion chamber wall and the flange and the central body supported by the flange. The acoustic resonance igniter may form a rocket engine ignition torch or a RCS thruster.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- F02K Class
- 290 Applications Filed
- 252 Patents Issued To-Date
- 86.90 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 11 Citation Count
- F02K Class
- 77 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 3, 2026 |