Internal-combustion engines – Free piston – Single chamber; one piston
Patent
1988-12-08
1989-10-31
Okonsky, David A.
Internal-combustion engines
Free piston
Single chamber; one piston
F02B 7100
Patent
active
048769916
ABSTRACT:
A free-piston two stroke cycle engine includes a piston rod assembly having a connecting rod with first and second ends, first and second power pistons affixed to the ends of the rod and first and second power transfer pistons mounted on the rod between the power pistons at locations spaced from each other, first and second power cylinders with sealed cavities in which the power pistons are movable. The cavities and the power pistons provide precompression chambers and combustion chambers of varying volumes. A timing module is located between the power cylinders, and first and second power transfer modules, each including a power transfer cylinder are between the timing module and the first and second power pistons, respectively. The connecting rod passes through the timing module and the power transfer modules and the first and second power transfer pistons reciprocate within the power transfer cylinders. The engine also includes gating and valving devices as appropriate, as well as a computer for controlling various aspects of the operation of the engine.
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Craig Richard A.
Okonsky David A.
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