| CPC B60H 1/323 (2013.01) [B60H 1/3227 (2013.01); F25B 2500/18 (2013.01)] | 19 Claims |
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1. A vehicle refrigeration system, comprising:
a compressor;
a condenser in fluid communication with the compressor;
a chiller;
a vapor injector;
a receiver drier; and
a refrigerant control block including a plurality of outer walls providing a plurality of openings in fluid communication with a plurality of internal fluid paths, the plurality of openings comprising:
a VPI block outlet,
a chiller block outlet,
a first EXV opening receiving a first EXV for modulating refrigerant flow out of the VPI block outlet through the vapor injector to the compressor,
a second EXV opening receiving a second EXV for modulating refrigerant flow out of the chiller block outlet to the chiller,
a condenser block inlet for receiving refrigerant flowing from the condenser to the receiver drier, wherein the system is configured for refrigerant flow from the condenser into the refrigerant control block at the condenser block inlet, internally through one of the plurality of internal fluid paths to the receiver drier, and then internally through a second of the plurality of internal fluid paths to the first EXV,
a VPI block inlet, and
a second VPI block outlet, wherein the system is configured for refrigerant flow internally through a third of the plurality of internal fluid paths from the receiver drier, out of the second VPI block outlet, through the vapor injector, into the refrigerant control block through the VPI block inlet, internally through a fourth of the plurality of internal fluid paths, the fourth internal fluid path including a first heat exchanger refrigerant path through an internal heat exchanger provided by the refrigerant control block, and to the second EXV.
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