Dual-expansion internal combustion engine utilizing an oscillati

Details Dual-expansion internal combustion engine utilizing an oscillati Dual-expansion internal combustion engine utilizing an oscillati

1980-08-21

1982-10-12

Koozo, Michael

Internal-combustion engines

Oscillating piston

Toroidal cylinder

F02B 5300

Patent

active

043533310

ABSTRACT:
An internal combustion engine utilizes a first outer oscillating piston connected to the engine housing by means of a pivot bearing and a second inner piston connected to the first piston by means of a pivot bearing connection. The inner piston is rotatably connected through an eccentric shaft to a main power shaft. Rotation of the eccentric shaft causes the inner piston to oscillate relative to the outer piston and also causes the outer piston to oscillate relative to the engine housing. Each of the oscillating pistons defines two opposed chambers of complementary and variable volumes; and fluid porting means, responsive to the motions of the pistons, are provided to control the flow of fluid among the chambers to attain a dual expansion of the combustion gases. The result is an internal combustion engine which is efficient, quiet, cool running and less subject to wear than presently used engines.

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