Split-cycle air-hybrid engine having a threshold minimum tank pressure
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United States of America Patent
Stats
-
Apr 8, 2014
Issued Date -
N/A
app pub date -
Mar 14, 2011
filing date -
Mar 15, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A split-cycle air-hybrid engine includes a rotatable crankshaft. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft. A crossover passage interconnects the compression and expansion cylinders. The crossover passage includes a crossover compression (XovrC) valve and a crossover expansion (XovrE) valve defining a pressure chamber therebetween. An air reservoir is operatively connected to the crossover passage. An air reservoir valve selectively controls air flow into and out of the air reservoir. The engine is operable in an Air Expander and Firing (AEF) mode. In the AEF mode, the pressure in the air reservoir is greater than or equal to approximately 5 bar absolute, preferably greater than or equal to approximately 7 bar absolute, and more preferably greater than or equal to approximately 10 bar absolute.
First Claim
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Family
International Classification(s)
- 2011 Application Filing Year
- F02B Class
- 870 Applications Filed
- 717 Patents Issued To-Date
- 82.42 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F02B Class
- 7.69 % this patent is cited more than
- 11 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 | Oct 8, 2025 |
