The refrigerant liquid-gas separator is thermally coupled to electronics to transfer heat away from the electronics, and assist in vaporizing the liquid refrigerant. The liquid-gas separator device includes a refrigeration section configured to couple to a refrigeration loop, and an electronics board thermally coupled to the refrigeration section. The refrigeration section includes: (a) a refrigerant inlet configured to receive refrigerant from the refrigeration loop; (b) a refrigerant outlet configured to release vapor refrigerant to the refrigeration loop; and (c) a cavity coupled to the refrigerant inlet and the refrigerant outlet, the cavity configured to separate liquid refrigerant from vapor refrigerant. In use, heat from the electronics board is transferred to the refrigerant.

The invention relates to a motor vehicle chiller (1) with several evaporators (8, 9, 10) of different cooling capacity, comprising a refrigerant circulation with at least one refrigerant compressor (2), at least one condenser (3), at least one expansion element (4) as well as at least two evaporators (8, 9, 10) disposed in parallel of different cooling capacity, which is characterized thereby that downstream of the expansion element (4) and upstream of the evaporator (10) of lesser cooling capacity a refrigerant collector (5) is disposed for the separation of the liquid refrigerant and that between the refrigerant collector (5) and the evaporator (10) a refrigerant pump (6) is disposed for the conveyance of the liquid refrigerant to the evaporator (10) of lesser cooling capacity, wherein the refrigerant vapor can be guided from the evaporator (10) across the refrigerant collector (5) functioning as the separator and be drawn in by the refrigerant compressor (2).

The disclosure provides a heat pump cycle that allows for an improved matching of the T(Q) slopes of the heat pump cycle. More particularly, in the heat pump cycle, the high temperature heat exchange is separated into two stages. Furthermore, a portion of the working fluid that was cooled in the first stage, is further cooled by expansion before being mixed with a heated working fluid for input to the recuperating heat exchanger.

A refrigeration circuit with thermal storage is disclosed. The circuit refrigeration comprises a gas-cooler comprising an inlet, and an outlet, and a compressor unit comprising one or more compressors. The outlet of the compressor unit is fluidically connected to the inlet of the gas-cooler. The refrigeration circuit comprises evaporators comprising an inlet, and an outlet, where the outlet of the evaporators is fluidically coupled to the inlet of the compressor unit. The refrigeration circuit comprises a flash tank fluidically connected between the gas-cooler and the compressor unit, and the evaporators and the compressor unit. Further, the circuit refrigeration comprises a thermal battery fluidically coupled to the gas-cooler, the flash tank, the compressor unit, and the evaporators. The thermal battery is used as a heat source and a heat sink based on the energy pricing of an electric grid to optimize the operation of the gas-cooler, evaporators, and the compressors.

An accumulator includes a tank, a desiccant, a suction pipe. The tank is configured to separate a refrigerant flowing therein into a gas-phase refrigerant and a liquid-phase refrigerant, store the liquid-phase refrigerant in the tank, and discharge the gas-phase refrigerant toward a suction side of a compressor. The desiccant is accommodated in a container and removing moisture in the refrigerant. The suction pipe is provided inside the tank and having a suction port through which the gas-phase refrigerant is sucked into the suction pipe. The desiccant is provided inside the suction pipe. According to this accumulator, a bumping due to the desiccant and an increase in size of the tank can be suppressed.

Provided are a gas-liquid separator and an air conditioning system of a vehicle. The gas-liquid separator includes: a housing having a liquid inlet, a liquid outlet, an air inlet and an air outlet; a middle cylinder arranged in the housing and provided with a separation recess, a first flow channel formed between an inner surface of the housing and an outer surface of the middle cylinder is configured to communicate the air inlet with the separation recess; an inner cylinder that is at least partially accommodated in the middle cylinder and forms a second flow channel together with an inner surface of the middle cylinder, the second flow channel being configured to communicate the separation recess with the air outlet; a third flow channel formed in the inner cylinder is configured to communicate the liquid inlet with the liquid outlet.

An accumulator includes a container, a low pressure refrigerant inlet tube, and a low pressure refrigerant outlet body including an upstream-side tubular section, a low pressure refrigerant turning back section and a downstream-side tubular section in the container. At least a part of the upstream-side tubular section is covered by a first outer tube with a gap between the upstream-side tubular section and the first outer tube, at least a part of the downstream-side tubular section is covered by a second outer tube with a gap between the downstream-side tubular section and the second outer tube, the first outer tube and the second outer tube communicate with each other via a bridging tube, and high pressure refrigerant passes through the gap between the upstream-side tubular section and the first outer tube, the bridging tube, and the gap between the downstream-side tubular section and the second outer tube.

A device for separation of oil particles by a coolant for air conditioning systems comprises a hollow container body and an inlet arranged to make enter the hollow container body a coolant, with oil particles, mainly in liquid phase and have a temperature T.sub.1. The device also comprises a outlet located upper part of the hollow container body and arranged to cause protrude coolant regenerated in vapour phase by the hollow container body. is also provided a heating coil arranged in the hollow container body and containing fluid at a temperature T.sub.2>>T.sub.1, in such a way that the coolant evaporates when comes in contact with the heating coil and the oil particles rimangano instead on the bottom of the hollow container body. The device also comprises a first oil barrier arranged above with respect to the heating coil and arranged to avoid that the oil particles schizino towards the outlet. is also provided a second oil barrier 114 located in the hollow container body at the outlet, said second oil barrier comprising holes having a diameter of a predetermined value D configured for preventing to oil particles of larger diameter to the predetermined value D of crossing the outlet.

A system includes a high side heat exchanger, a flash tank, a first load, a second load, a first compressor, and a heat exchanger. The flash tank is configured to store the refrigerant from the high side heat exchanger. The first load is configured to use the refrigerant from the flash tank to remove heat from a first space proximate to the first load. The second load is configured to use the refrigerant from the flash tank to remove heat from a second space proximate to the second load. The first compressor is configured to compress the refrigerant from the first load. The heat exchanger is configured to transfer heat from the refrigerant from the first compressor and the second load to the refrigerant from the high side heat exchanger, and direct the refrigerant from the first compressor and the second load to a second compressor.

Cascaded refrigeration systems containing: a plurality of refrigeration units, each refrigeration unit containing a first refrigeration circuit, each first refrigeration circuit comprising an evaporator and a heat exchanger; and a second refrigeration circuit; wherein each first circuit heat exchanger is arranged to transfer heat energy between its respective first refrigeration circuit and the second refrigeration circuit.