Heater apparatus of a hot gas external combustion piston engine

摘要: The working gas of the engine passes successively through tubes at least two parallel arrays and a heating interstices arrays, not necessarily in same sequence. To equalize thermal loading upstream downstream referring to stream gas, open space between array and/or flow velocity inside is made higher than that array. These relations are provided by differences tube diameter, number tubes, configuration heat transfer fins alone or combination with each other features such as staggering one respect other. may be subdivided into more arrays. An arrangement interleaved pairs also shown.