| 摘要 |
PURPOSE:To reduce the size of an engine and to minimize the head loss of the same, by making the front area of a regenerator and a cooler sufficiently large, and thereby reducing the pressure loss of a work fluid caused when the work fluid is passed through the regenerator and the cooler. CONSTITUTION:A stirling engine of this invention comprises a displacer piston 1, a cylinder liner 4 surrounding a power piston 2, a frame 9 surrounding the cylinder liner 4 with a desired spacing, and a regenerator 12 disposed in an annular space formed between the cylinder liner 4 and a high-temperature chamber head 10 fixed to the frame 9. The regenerator 12 is divided into a pluraliry of stages, and each stage of the regenerator 12 is separated into an inner chamber 12B and an outer chamber 12C by a cylindrical heat accumulating member 12A. The uppermost inner chamber 12B is communicated with a heater 10A, and the uppermost outer chamber 12C is communicated with a lower inner chamber 12B via an annular slit 12D formed in a stage separating wall. By thus communicating each outer chamber with a lower inner chamber, the lowermost outer chamber 12C is communicated with a cooler 13. |
