Patent ID: 7398757
Filing Date: 2008-07-15
Classification: F01C,F02B,Y02T,Y10T

Abstract:
1. A method of extracting energy from an expanding gas, the method comprising: a) channeling air through an input port into a chamber defined in part by a power ring having a plurality of power teeth where a forward motion of a power tooth creates an expanding chamber defined in part by a trailing surface of the power tooth and a portion of a cylindrical surface of a first piston valve, b) passing a second power tooth through a slotted region of the first piston valve where a forward surface of the second power tooth compresses said air through a compression port positioned at a first radial location on the power ring, c) fluidly communicating the compression port with an inlet port of a combustion chamber where the air is compressed therein, d) closing said fluid communication between the inlet port and the compression ports, e) passing the second power tooth through a slot region of a second piston valve, f) mixing the air with a combustible fuel, g) igniting said mixing air and combustive fuel thereof, h) fluidly communicating an outlet port with the combustion chamber at a second radial location which is a different radial location than the first radial location of the inlet port and the outlet port communicates with an expansion port trailing the second power tooth and the expansion port is positioned at the second radial location, i) allowing the expanding gas to provide a force upon the trailing surface of the second power tooth to provide a torque about the power ring, j) passing a third tooth through the slot region of the second piston valve where a forward surface of the third tooth positively displaces the combustion mixture forward out of the outlet port.