Machine for transforming thermal energy into mechanical work or electrical energy

摘要

A machine for the transformation of thermal energy into mechanical work or electrical energy characterized by comprising cylindrical blocks provided with axial cavities housing a rotary member provided with cams having profiles such as to generate a coordinated movement of pistons housed in said cylindrical blocks; a series of cylindrical working chambers open towards said axial cavities of said cylindrical blocks provided with pistons acting on a roller in contact with said cams. Each chamber is also provided with communication channels with an external reservoir for a fluid working in the chambers, and a plurality of distribution valves of the fluid between said appropriate communication channels and the working chambers. A first cylindrical block is exposed to a heat source (A) adapted to heat the working fluid in the working chambers while a second cylindrical block is thermally isolated from said heat source and placed in contact with a lower temperature heat source whereby it is cooled. The fluid carries out thermodynamic cycles of compression and expansion as a result of the motion of said pistons and the corresponding rotation of the cams and of the rotary shaft.