Modular low-pressure delivery vehicle air conditioning system having an in-cab cool box

An air conditioning and refrigeration system for a vehicle having an occupant cabin and an engine located in an engine compartment, the system comprising:

• a refrigeration power cell;
• a first heat exchanger;
• a communication circuit having low-pressure refrigerant, the circuit thermally coupling the first heat exchanger to the refrigeration power cell;
• a cool box thermally coupled to the low-pressure refrigerant communication circuit;
• and
• wherein a two-way valve regulates a flow of low-pressure refrigerant through the cool box and the first heat exchanger;
• and
• wherein the cool box is thermally coupled to the low-pressure refrigerant communication circuit in parallel with the first heat exchanger.

An air conditioning and refrigeration system for a vehicle having an occupant cabin and an engine located in an engine compartment, the system comprising:

• a refrigeration power cell having a compressor, a condenser, an expansion device and an evaporator coupled by fixed tubing having permanent connections;
• a first heat exchanger;
• a communication circuit having low-pressure refrigerant, the circuit thermally coupling the first heat exchanger to the refrigeration power cell;
• and
• a cool box thermally coupled to the low-pressure refrigerant communication circuit in parallel with the first heat exchanger;
• and
• wherein a two-way valve regulates a flow of low-pressure refrigerant from the low-pressure refrigerant communication circuit to the cool box and the first heat exchanger.

An air conditioning and refrigeration system for a vehicle having an occupant cabin and an engine located in an engine compartment, the system comprising:

• a refrigeration power cell;
• a first heat exchanger;
• a communication circuit having low-pressure refrigerant, the circuit thermally coupling the first heat exchanger to the refrigeration power cell;
• a cool box thermally coupled to the low-pressure refrigerant communication circuit;
• wherein a two-way valve regulates a flow of low-pressure refrigerant through the cool box and the first heat:exchanger;
• a second heat exchanger;
• a second communication circuit having low-pressure refrigerant for operably coupling the second heat exchanger to the refrigeration power cell;
• and
• wherein the second heat exchanger is mounted in proximity to an engine radiator.

An air conditioning and refrigeration system for a vehicle having an occupant cabin and an engine located in an engine compartment, the system comprising:

• a refrigeration power cell;
• a first heat exchanger;
• a communication circuit having low-pressure refrigerant, the circuit thermally coupling the first heat exchanger to the refrigeration power cell;
• a cool box thermally coupled to the low-pressure refrigerant communication circuit;
• wherein a two-way valve regulates a flow of low-pressure refrigerant through the cool box and the first heat exchanger;
• a second heat exchanger;
• a second communication circuit having low-pressure refrigerant for operably coupling the second heat exchanger to the refrigeration power cell;
• and
• wherein the second heat exchanger forms an integrated assembly with an engine radiator.

Modular air conditioning and refrigeration system comprising:

• a high-pressure closed refrigeration circuit having a compressor, a condenser, an expansion device and an evaporator coupled by fixed tubing having permanent connections;
• and
• a low-pressure refrigerant communication circuit having a cool box and a heat exchanger coupled in parallel, the low-pressure refrigerant communication circuit operably coupled to the high-pressure closed refrigeration circuit, the heat exchanger and cool box remotely located from said high-pressure circuit;
• and
• wherein a two-way valve regulates a flow of low-pressure refrigerant from the low-pressure refrigerant communication circuit to the cool box and the heat exchanger.

Modular air conditioning and refrigeration system comprising:

• a high-pressure closed refrigeration circuit having a compressor, a condenser, an expansion device and an evaporator coupled by fixed tubing having permanent connections;
• and
• a low-pressure refrigerant communication circuit having a cool box and a heat exchanger, the low-pressure refrigerant communication circuit operably coupled to the high-pressure closed refrigeration circuit, the heat exchanger and cool box remotely located from said high-pressure circuit;
• and
• wherein the low-pressure refrigerant communication circuit is selectively coupled to the heat exchanger and cool box.

A refrigeration system for a vehicle, comprising:

• a high-pressure closed refrigeration circuit having a compressor, a condenser, an expansion device and an evaporator coupled by fixed tubing having permanent connections;
• a low-pressure refrigerant communication circuit in thermal communication with said high-pressure circuit, said low-pressure refrigeration circuit including a heat exchanger and a cool box;
• and
• wherein the low-pressure refrigerant communication circuit is selectively coupled to the heat exchanger and the cool box.