DUAL MODE COMPRESSOR WITH AUTOMATIC COMPRESSION RATIO ADJUSTMENT FOR ADAPTING TO MULTIPLE OPERATING CONDITIONS
摘要
<p>An apparatus and method for compressing gas refrigerant using two different compressors operated alternatively in a series or parallel mode for obtaining two different compression ratios and thereby provide efficient operation for both a relatively lower suction pressure and a relatively higher suction pressure. This system avoids an unbalanced mass flow rate when the compressors are operated in series by unloading a downstream one of the compressors. When operated in the series mode, refrigerant is bypassed back to a suction inlet of the downstream compressor during a portion of a compression stroke of the downstream compressor for equalizing the mass flow rate through the two compressors.</p>
申请公布号
WO2006098808(A2)
申请公布日期
2006.09.21
申请号
WO2006US02175
申请日期
2006.01.20
申请人
SUNPOWER, INC.;UNGER, REUVEN, Z-M.;COLLINS, JOSHUA, E.