SPLIT-CYCLE AIR-HYBRID ENGINE WITH MINIMIZED CROSSOVER PORT VOLUME
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United States of America Patent
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Issued Date -
Sep 15, 2011
app pub date -
Mar 14, 2011
filing date -
Mar 15, 2010
priority date (Note) -
Abandoned
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 port connects the crossover passage to the air reservoir. An air reservoir valve is disposed in the air reservoir port. The air reservoir port includes a first air reservoir port section between the crossover passage and the air reservoir valve. The first air reservoir port section has a volume that is less than or equal to a volume of the crossover passage.
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