Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle
Patent
1991-10-23
1992-07-28
Okonsky, David A.
Internal-combustion engines
Multiple piston, common nonrestrictive combustion chamber
Four-cycle
123 51BA, 123 53C, F02B 7502
Patent
active
051333066
ABSTRACT:
Presented is an internal combustion engine that utilizes horizontally opposed pistons operating in direct opposition to one another in axially aligned open ended cylinders suspended below a base plate and arranged generally symmetrically on opposite sides of a vertical plane coincident with the rotational axis of a longitudinally extending main power crankshaft also suspended for rotation below the base plate. A pair of auxiliary crankshafts are provided spaced on opposite sides of the vertical plane and having rotational axes that lie in a common plane below and parallel with the plane of the base plate and coincident with the longitudinal axis of the cylinders. A cam shaft is provided to be driven by at least one of the auxiliary crankshafts in timed sequence with linear displacement of the pistons and operation of poppet-type intake and exhaust valves actuated by the cam shaft to admit a fuel mixture into the combustion chamber defined by the juxtaposed heads of the pistons. Sparkplugs are provided for igniting the compressed fuel mixture in each of the cylinders in appropriately timed intervals to effect displacement of the pistons in a power stroke. Connecting rods pivotally connect each of the pistons with an associated auxiliary crankshaft, and power connecting rods connect each of the auxiliary crankshafts with the main power crankshaft whereby rotation of the auxiliary crankshafts by linear displacement of the pistons effects complementary rotation of the main power crankshaft.
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Leavitt John J.
Okonsky David A.
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