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US 4,285,202 AGranted
Method of energy conversion and a device for the application of said method
OwnerBernard Bailly du Boisinventor
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OwnerBernard Bailly du Boisinventor
Estimating the term…
The utilizable energy of a working fluid is converted into mechanical energy by means of friction forces exerted by the fluid on the moving walls of one or a number of circulation ducts forming part of a rotor. In their respective azimuthal projections, the friction force exerted on the fluid by the duct walls and the Coriolis force to which the fluid is subjected are of the same order of magnitude. The method consists in varying the pressure of the working fluid which is circulated in a spiral circuit and subjected to azimuthal displacements in the same direction of rotation as the rotor when the fluid comes closer to the axis and in the opposite direction when it moves away from the axis. When at least a portion of the duct walls forms part of a heat exchanger, the working fluid can also undergo predetermined variations in entropy and in enthalpy.
A method of energy conversion involving at least one step of compression or expansion of a working fluid within a rotor, wherein said method comprises:
A method of energy conversion involving the circulation of a working fluid along a spiral circuit within a rotating rotor, the working fluid following a thermodynamic cycle between a heat source and a heat sink, wherein a gas having a low value of specific heat is employed for constituting the working fluid and contains in suspension submicronic particles of a substance having an atomic weight of greater than 90.
A device for the compression or expansion of a working fluid, comprising:
A method of energy conversion involving at least one step of compression or expansion of a working fluid within a rotor, wherein said method comprises circulating the working fluid within a duct which is rigidly fixed to the rotor and follows a circuit having the shape of a spiral, said spiral being oriented in such a manner as to draw nearer to the axis of rotation of the rotor as it is followed around said axis in the direction of rotation of the rotor and wherein, at each point of the duct, the angular velocity .omega. of rotor, the relative velocity V of the fluid within the duct, the hydraulic diameter D of the duct, the coefficient of friction f of the fluid on the walls of the duct and the angle A made with the meridian plane at the point considered by the plane parallel to the axis of the rotor defined by the direction of the circuit at this point satisfy the following condition during operation:
Dependencies are inferred from the claim text.