The present solution provides a cyclone for separation of gas-liquid mixtures, particularly suitable for a refrigerant accumulator or an accumulator with an internal heat exchanger in a vehicle air conditioning system using carbon dioxide as refrigerant, including an inlet of the gas-liquid mixture and a body of the cyclone with an inlet chamber, an outlet chamber, and at least one stationary vane in the form of a helix to ensure rotation of the mixture in the cyclone outlet chamber, where the gas-liquid mixture inlet is arranged substantially coaxially with the axis of the cyclone and opens directly into the inlet chamber of the cyclone body. The solution further provides a refrigerant accumulator and an accumulator with an integrated internal heat exchanger which includes the cyclone according to the invention.

An economizer includes a separation wheel, a motor, and a liquid storage portion. The separation wheel is arranged and configured to separate refrigerant into gas refrigerant and liquid refrigerant. The separation wheel is attached to a shaft rotatable about a rotation axis. The motor is arranged and configured to rotate the shaft in order to rotate the separation wheel. The liquid storage portion is arranged and configured to store the liquid refrigerant. The economizer is adapted to be used in a chiller system including a compressor, an evaporator and a condenser.

A centrifugal mesh mist eliminator generally comprises a cylindrical roll of mesh attached to a vertical rotating shaft positioned within the center of a pressure vessel. A horizontal partition within the pressure vessel forms a barrier seal between the upper and lower portions thereby directing droplet laden gas flow through the rotating mesh. The incoming droplet laden gas stream enters the lower portion of the pressure vessel through an inlet nozzle. The droplet laden gas stream flows through the rotating cylindrical mesh element where it enters the top section of the pressure vessel. Droplets impinge on the mesh and coalesce into larger diameter drops. These larger diameter drops detach from the mesh due to centrifugal force. The detached liquid droplets settle to the bottom of the vessel as their mass is sufficient to overcome the surrounding flow stream drag force. Liquid discharges from the bottom of the vessel through an outlet nozzle while dry gas exits through a top outlet nozzle.

Embodiments disclosed herein relate to devices, systems, and methods for cooling and/or heating a medium as well as cooling and/or heating an environment containing the medium. More specifically, at least one embodiment includes a heat pump that may heat and/or cool a medium and, in some instances, may transfer heat from one location to another location.

A multifunctional phase separation apparatus is provided herein. The multifunctional phase separation apparatus includes a porous tube, a phase separator, and liquid collecting modules. The porous tube includes a first entry port and an exit port. The phase separator includes a second entry port. The multifunctional phase separation apparatus also includes a reservoir. The reservoir is on a first end of the liquid collecting modules.

A fluid control system includes a vortex separator, a fluid pump, an eductor, and an accumulator. The vortex separator has a fluid inlet arranged to receive a fluid, a first fluid outlet arranged output a first phase of the fluid, and a second fluid outlet arranged to output at least one of a non-condensable gas and a second phase of the fluid. The fluid pump has a pump outlet and a pump inlet that is fluidly connected to the first fluid outlet. The eductor has a first eductor inlet fluidly connected to the pump outlet, a second eductor inlet fluidly connected to the second fluid outlet, and an eductor outlet. The accumulator has an accumulator inlet fluidly connected to the eductor outlet and an accumulator outlet fluidly connected to the fluid inlet.

A cooling device is provided, which comprises a cooling circuit comprising an evaporator and a compressor connected to the evaporator by a first fluid line of the cooling circuit, wherein the compressor is adapted to compress cooling agent in the cooling circuit during an active cooling mode, wherein the compressed cooling agent contains lubricant oil from the compressor. The cooling circuit comprises a condenser, which is connected to the compressor by a second fluid line of the cooling circuit. The second fluid line is connected to a fluid by-pass line of the cooling circuit by a separating portion, and wherein the separating portion is adapted to physically separate lubricant oil from the compressed cooling agent, so that the lubricant oil is collected in the fluid by-pass line.

A refrigeration cycle device is configured to be selectively switchable between an air-cooling first refrigerant circuit that causes refrigerant to flow out of a liquid-phase refrigerant outlet of a gas-liquid separator, and an air-heating second refrigerant circuit that causes the refrigerant to flow out of a gas-phase refrigerant outlet of the gas-liquid separator. In the refrigeration cycle device, an oil separator is disposed in a refrigerant passage that leads from a heat dissipation device to a first expansion valve. Thus, when the first refrigerant circuit is configured in the refrigeration cycle device, the refrigerant passing through the oil separator is in a single gas phase or in an almost gas phase, so that oil can be easily separated from the refrigerant. Furthermore, when the refrigerant circulates through the first refrigerant circuit, oil can be retained at a position other than the gas-liquid separator.

Embodiments disclosed herein relate to devices, systems, and methods for cooling and/or heating a medium as well as cooling and/or heating an environment containing the medium. More specifically, at least one embodiment includes a heat pump that may heat and/or cool a medium and, in some instances, may transfer heat from one location to another location.

According to various embodiments of the invention, a heat exchanger can have at least one duct for conveying a coolant, wherein the at least one duct has a first section and a second section, the first section being arranged in the at least one duct upstream relative to the second section, in relation to a flow direction of the coolant, the second section having a cross section area that is larger than a cross section area of the first section, such that a sublimation of the coolant in the second section is made possible.