Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Reexamination Certificate
2007-09-18
2007-09-18
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
C123S054100, C123S0780BA, C123S0780AA
Reexamination Certificate
active
11463409
ABSTRACT:
An internal combustion engine with improved efficiency provides continuous variable displacement and/or compression ratio tuning to one of a number of fuel types to be used by the engine. By varying displacement without changing the compression ratio, the engine can be tuned to operate on a given fuel more efficiently according to the load demands on the engine. By varying the compression ratio, the engine can be converted for use with the most economical fuel type available. The engine can be of a radial configuration with an offset crankshaft and a common cam throw-piece that can be positioned on the crankshaft to change the stroke and/or compression ratio affected by one or an array of pistons. An onboard electronic control can be used to detect engine efficiency, change engine displacement and/or compression ratio, change fuel supply, and compute fuel economy.
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Atkins Robert D.
Kamen Noah P.
Quarles & Brady LLP
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