heat engine
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United States of America Patent
Stats
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Oct 17, 2023
Grant Date -
Feb 2, 2023
app pub date -
Sep 30, 2022
filing date -
Oct 27, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Calculated Rating
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Abstract
Aircraft power plants including combustion engines, and associated methods for recuperating waste heat from such aircraft power plants are described. A method includes transferring the heat rejected by the internal combustion engine to supercritical CO2 (sCO2) used as a working fluid in a heat engine. The heat engine converts at least some the heat transferred to the sCO2 to mechanical energy to perform useful work onboard the aircraft.
First Claim
Other Claims data not available
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International Classification(s)
- 2022 Application Filing Year
- F01K Class
- 149 Applications Filed
- 89 Patents Issued To-Date
- 59.74 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F01K Class
- 0 % this patent is cited more than
- 2 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Apr 17, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 17, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 17, 2035 |
