Internal-combustion engines – Cooling – Air-cooled
Patent
1990-06-07
1991-01-22
Kamen, Noah P.
Internal-combustion engines
Cooling
Air-cooled
123 76, 123433, F01P 100
Patent
active
049862243
ABSTRACT:
An internal combustion engine apparatus includes a cylinder having a head, an intake valve cooperating with the head for selectively allowing passage of fluids into the cylinder and an exhaust valve for selectively allowing passage of fluids out of the cylinder. The exhaust and inlet valves are open during both the intake and exhaust phases of operation of the engine. A piston is mounted for reciprocal movement in the cylinder between a top dead center position and a bottom dead center position. The cylinder has at least one opening therein, the opening is disposed in a side wall thereof intermediate the top dead center position and the bottom dead center position. The opening communicates between the interior of the cylinder and space outside of the cylinder and the opening is fully covered by the piston in at least one position of the piston. The engine also includes apparatus for pressurizing air and apparatus for fluid coupling the apparatus for pressurizing air to the opening and to the intake valve simultaneously during both intake and exhaust phases of the engine.
REFERENCES:
patent: 4386587 (1983-06-01), Simko
patent: 4660513 (1987-04-01), Figliuzzi
Kamen Noah P.
Smith Robert S.
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