| 摘要 |
<p>A power unit (282, 362) for a high efficiency heat transfer system includes power modules (284) each of which includes a driving section and a driven section. A rotary valve assembly (292, 358) delivers and exhausts a first working fluid in a power circuit (12, 350) from the driving sections of the power modules. The driven sections of the power modules compress a second working fluid which flows in a heat pump circuit (14, 352).</p> |
