US 6,598,582 B1Granted

Rotary heat engine

AssigneeRonald F Murawsky

InventorRonald F Murawsky

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Abstract

An enclosed chamber external combustion rotary engine that converts thermal energy into mechanical energy, comprising of a tapered rotary disc with at least one perimeter quadrilateral vane oscillating inside enclosed expansion chambers formed on alternating sides of the rotary disc. The quadrilateral vane remains centered on the rotary disc, except for the transitional area, allowing fluid to provide force to the top and bottom sections of the quadrilateral vane for the length of the non-transition area. Fluid enters expansion chambers through one or more intake passages. Intake passages are formed with shut-off valves, which control the flow of fluid entering expansion chambers. Fluid pressure propels the vane through the expansion chambers causing the disc to rotate about an axis. Incorporated in the rotary disc is an output shaft from which work can be derived.

An enclosed chamber external combustion engine comprises:

a rotary disc having radial slots formed in the perimeter;
an outer plane of said disc which encompasses said slots, being thinner on the outer diameter and progressively getting thicker towards the inner diameter;
quadrilateral vanes fitting in said slots and having inner and outer sides of said quadrilateral vanes being parallel;
said quadrilateral vanes being adapted to move parallel to the rotary disc axis while rotating through expansion chambers, and having seal fluid while passing through said expansion chambers;
said quadrilateral vanes remaining centered on said rotary disc, allowing pressurized fluid to be in contact with top and bottom sections of said quadrilateral vanes for the length of a non transitional area;
both chamber walls forming alternating parallel chambers on opposite sides of said rotary disc and having at least one intake passage and at least one exhaust passage;
a sealing means provided in areas of said chamber walls for preventing said disc and said quadrilateral vanes from fluid leakage;
a perimeter plane of said rotary disc acting as a midway border between said expansion chambers comprising:
an outer surface of said rotary disc forming a cylindrical inner chamber wall;
an outer chamber wall providing an outer enclosure for said expansion chambers;
an inner surface of said outer chamber wall being cylindrical;
said outer chamber wall having intake passages and exhaust passages on the perimeter plane;
wherein said intake passages are aligned such that the incoming fluid is aligned with the direction quadrilateral vanes, at least one said intake passage being located near the beginning of said expansion chamber and subsequent intake passages being arranged in linear progression;
and
wherein said exhaust passages are aligned to the direction of the escaping fluid;
shut-off valves provided in said intake passages, which stop and start the flow of fluid;
and
means for regulating said shut-off valves being provided.

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Abstract

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