Power plants – Motor operated by expansion and/or contraction of a unit of... – Unit of mass is a gas which is heated or cooled in one of a...
Patent
1989-12-29
1991-03-12
Ostrager, Allen M.
Power plants
Motor operated by expansion and/or contraction of a unit of...
Unit of mass is a gas which is heated or cooled in one of a...
74 49, 74 55, 74837, F02G 1053
Patent
active
049984110
ABSTRACT:
An external heat engine has a piston mounted for movement between a first upper position and a second, lower position, a heater for heating a working gas to forcibly move the piston from the upper position to the lower position (power stroke), a crankshaft rotatable about a main axis, the piston and crankshaft being linked so that movement of the piston from the upper position to the lower position during the power stroke is transformed into rotational movement of the crankshaft during a first portion of one rotation of the crankshaft about the main axis. The piston moves from the lower position to the upper position during a second portion of one rotation of the crankshaft (compression stroke). The piston and crankshaft are linked by a disk, a piston rod connected to the piston and a connecting ring for rotatably supporting the disk. The disk is rotatable about its central moveable axis, and is connected to the crankshaft at a point offset from the disk's axis, for rotation about the disk's axis in response to rotation of the crankshaft about its main axis, the axis of the disk being disposed so that when the piston is in the upper position, the axis of the disk is substantially aligned with the main axis of the crankshaft during a third portion of one rotation of the crankshaft about the main axis. With this structure, the piston is maintained in the upper position for substantially 180.degree. of rotation of the crankshaft.
REFERENCES:
patent: 4444011 (1984-04-01), Kolin
patent: 4532819 (1985-08-01), Ross
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