| 摘要 |
<p>In one exemplar embodiment, method and apparatus for controlling capacity of a multiple-stage cooling system which utilizes means for establishing a single predetermined cooling stage "cut-in" pressure (75) and a single predetermined cooling stage "cut-out" pressure (77), means for determining that the "cut-in" or "cut-out" pressures have been reached in the system (74 and 76), a delay means (82 and 84) for introducing a selected minimum time delay after determining that the refrigerant fluid pressure has either reached the established "cut-in" or "cut-out" pressures, and control means (90, 92, 94, 96 and 98) for controlling the turning on or off of the next cooling stage after the time delay has elapsed.</p> |
