Over head heating system for Stirling engines - has heater tubes identical and running in parallel evolvent lines

摘要

The overhead heating system consists of cylinder heads (1, 2) connected to corresponding regenerator housings (3, 4) by identical or near identical tubes (5, 6). Each tube has a section (5) which runs along a conical surface and has a section which runs along a cylindrical surface. The one tube section runs outwards and upwards in a spiral and the second tube second downwards on a straight line. The spiral tube sections (5) are arranged along an imaginary conical surface. The surface extends from an inner semi circle to an outer semi circle. The tube sections run parallel to each other along helical lines between the two semi circles. A three dimensional view would present a blunt cone with an angle of 60 degrees.