| 摘要 |
An aerodynamic pressure wave machine for effecting an exchange of energy between two gases, a hot gas being expanded from a higher to a lower pressure level and a cold gas being compressed from a lower pressure to a higher pressure, by means of a celled rotor, wherein the rotor cells are inclined with respect to the axis such that opposite ends of the cells lie on different diameters, the hot gas entering and also leaving at the end of the rotor having the greater cell diameter and the cold gas entering and also leaving at the end of the rotor having the smaller cell diameter. This structural arrangement of the rotor cells is particularly advantageous in a case where the pressure of the compressed cold gas and the hot gas to be expanded differ only slightly in the high-pressure zone, whereas the pressure of the expanding hot gas in the low-pressure zone is substantially higher than the pressure of the cold gas to be compressed. If desired, the radial height of the cells can be varied between one end of the rotor and the other, and the variation in height can be designed in such manner that the cell cross-section area remains constant over the length of the cells. |
