Internal-combustion engines – Multiple cylinder – Having rotary output shaft parallel to cylinders
Patent
1994-05-16
1995-08-01
Okonsky, David A.
Internal-combustion engines
Multiple cylinder
Having rotary output shaft parallel to cylinders
123 585, 123 65S, F01L 1100
Patent
active
054372518
ABSTRACT:
A variable-compression internal-combustion engine has a two-stage cylinder with a relatively large diameter at a first-stage, supercharge end, which is also a power-takeoff end, than at a second-stage, combustion end of the cylinder. Intake air is drawn into the first-stage, supercharge end of the cylinder by a matching larger-diameter, first-stage, supercharge end of a two-stage piston during a compression stroke of a two-stroke cycle of the two-stage piston. During a power stroke, intake air is directed into and contained under pressure in an air-transfer passage that is positioned circumferentially and externally around an outside periphery of a bottom end of the first-stage cylinder. At a bottom end of the power stroke, intake air is directed from the air-transfer passage into a transfer conveyance extended from the supercharge end to tile second-stage head of the two-stage piston where the intake air is venturi-accelerated to the second-stage head of the two-stage cylinder while exhaust escapes through exhaust ports at a bottom of the second stage of the two-stage cylinder. Cylinder heads can be variable in distance from top dead center of piston travel to regulate compression ratio as desired for different operating conditions. Reciporcative travel of a plurality of the two-stage pistons is convened to rotary motion preferably by a pinch plate in working relationship to an angled cam plate. The pinch plate cam-drives the angled cam plate with a large contact surface for long wear life. Other rotational means can be employed.
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Anglim Richard R.
Halfman Hazel L.
Livingston Edward M.
Okonsky David A.
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