An exchanger for a phase changing refrigerant including a horizontal distributor tube, a horizontal collector tube, and at least one refrigerant carrying heat exchanger tube connected therebetween. A refrigerant gas inlet into the at least one heat exchanger tube is arranged in an upper portion of a cross section of the horizontal distributor tube. A refrigerant outlet from the at least one heat exchanger tube is arranged in an upper portion of a cross section of the horizontal collector tube for condenser operation of the multi channel heat exchanger so that oil separation is provided in a lower portion of the cross section of the horizontal distributor tube and liquid refrigerant separation is provided in a lower portion of the cross section of the horizontal collector tube.

A refrigerant reservoir container includes: a container main body having a cylindrical body part and being a horizontal type, storing refrigerant including liquid refrigerant; an inflow pipe inserted into the container main body, having an inlet through which the refrigerant flows into the container main body; an outflow pipe inserted into the container main body, having an outlet through which the refrigerant flows out from the container main body; and a baffle plate having a first flat surface and being supported cantilevered on an inner wall of the container main body. The inlet is oriented sideways and faces the inner wall of the container main body. The outlet is located above the inlet in the container main body. The baffle plate is located below the inlet, and the first flat surface of the baffle plate faces the liquid refrigerant that flows in through the inlet and along the inner wall.

System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The accumulator may measure a mass flow rate of oil in the vapor compression cycle system based on an amount of time taken to fill a portion of the accumulator. The accumulator may further determine an oil circulation ratio based on the measured time taken to fill the portion of the accumulator. The smart accumulator may output the oil circulation ratio.

An accumulator has a tank and a desiccant. The tank separates refrigerant flowing to the tank into vapor-phase refrigerant and liquid-phase refrigerant, therein stores the liquid-phase refrigerant, and emits the vapor-phase refrigerant toward a suction side of a compressor. The desiccant is disposed in the tank and removing a water content from the refrigerant. Liquid-phase refrigerant included in the refrigerant flowing to the tank drops downward from a location that is located above the desiccant, and is stored in a lower portion in the tank. Vapor-phase refrigerant included in the refrigerant flowing to the tank is drawn through a suction port that is located above the desiccant to flow out of the tank. At least a part of the desiccant is exposed to vapor-phase refrigerant under a normal condition, and the desiccant is located at a location that is away from a dropping route of liquid-phase refrigerant in the tank.

Provided are a liquid reservoir for a refrigeration system, and a refrigerator. The liquid reservoir comprises: a drum body, a gas-liquid separation chamber being defined therein; and an air intake pipe, used for connecting to an evaporating pipe of an evaporator of the refrigeration system, and extending into the gas-liquid separation chamber from one end of the drum body, the end of the air intake pipe extending into the gas-liquid separation chamber being provided with a baffle opposite to a mouth of the air intake pipe, such that a mixture discharged from the air intake pipe hits the baffle and is discharged into the gas-liquid separation chamber from an interval between the baffle and the air intake pipe.

A refrigerant accumulator, comprising a housing with at least one inlet opening and at least one outlet opening, wherein a device is arranged in the housing, wherein the device is allocated to the inlet opening and/or the outlet opening.

System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The valve may release accumulated oil into the suction-line based on a level-sensor inside the accumulator.

Provided is an accumulator capable of effectively suppressing a bumping phenomenon and the following impact noise during the starting of a compressor without making the structure of the accumulator complicated or increasing the cost and the size thereof, and so having cost-effectiveness. An accumulator includes: a tank 10 having an inflow port 15 and an outflow port 16; and a double-pipe structured outflow pipe 30 including an inner pipe 31 joined to the outflow port 16 and hanging inside of the tank 10, and an outer pipe 32 disposed outside of the inner pipe 31. A cloth-like member such as felt or a foam material 60 is wound around or externally inserted to the outer pipe 32.

An accumulator includes: a container; a partition plate dividing an internal space of the container into a refrigerant introduction chamber and a refrigerant discharge chamber; an inlet pipe including an inlet flow channel connected to the refrigerant introduction chamber; at least one communication pipe including an outlet opening disposed in the refrigerant discharge chamber and a communication flow channel connecting the refrigerant introduction chamber with the refrigerant discharge chamber, and passing through the partition plate; at least one outlet pipe including an inlet opening disposed in the refrigerant discharge chamber and an outlet flow channel connected to the refrigerant discharge chamber; and a deflection portion blocking views from the outlet opening and the inlet opening, and deflecting a direction of flow of a refrigerant so as to prevent the refrigerant flowing from the outlet opening into the refrigerant discharge chamber from directly flowing to the inlet opening.