Internal-combustion engines – Multiple cylinder – Cylinders radiating
Reexamination Certificate
2004-06-25
2008-12-30
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Multiple cylinder
Cylinders radiating
C123S055700, C123S07000R, C123S0710VA
Reexamination Certificate
active
07469664
ABSTRACT:
An internal combustion engine is disclosed having opposed cylinders, each cylinder having a pair of opposed pistons. All the pistons may be connected to a common central crankshaft. The inboard pistons of each cylinder may be connected to a common joint on the crankshaft with pushrods and the outboard pistons may be connected to a common joint on the crankshaft with pullrods. Each opposed cylinder may include an integrated scavenge pump for providing positive intake pressure. The engine configuration also allows for asymmetrical timing of the intake and exhaust ports through angular positioning of the journals on the crankshaft.
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Hofbauer Peter
Tusinean Adrian
Advanced Propulsion Technologies, Inc.
Ali Hyder
Cronin Stephen K.
Ganz Law P.C.
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