| 摘要 |
<p>The invention relates to an expansion machine for the refrigeration cycle, belonging to the refrigeration technical field. The expansion machine comprises an expansion turbine (10) and a nozzle (41) for injecting the refrigerating working substance to the expansion turbine (10), wherein, the expansion turbine (10) comprises a disc-shaped body part (11) and a plurality of periphery protrusions (12) which have injection-receiving surfaces (121) and periphery surfaces (122) and extend in radial along the body part (11); wherein, the injection-receiving surfaces (121) are parallel with the radial of the disc-shaped body part (11); the periphery surfaces (122) are perpendicular to the radial of the disc-shaped body part (11). The expansion machine for the refrigeration cycle has the characteristic that the energy recovery efficiency of the expansion turbine is raised by the simple structural design.</p> |
