Abstract: A vapor compression system including a compressor, a condenser, an expansion device, and an evaporator. The evaporator includes a main distributor having an inlet, a first outlet, and a second outlet, a coil, the coil having an inlet connected with the first outlet of the main distributor, an outlet, and at least one opening, wherein the opening is located on a surface of the coil between the inlet and the outlet, and a feed line connecting the second outlet of the main distributor to the coil opening. The vapor compression system includes a discharge line connecting the compressor to the condenser, a liquid line connecting the condenser to the inlet of the expansion device, a saturated vapor line connecting the outlet of the expansion device to the inlet of the main distributor, and a suction line connecting the outlet of the coil to the compressor.

Abstract: A vapor compression system includes an evaporator, a compressor, and a condenser interconnected in a closed-loop system. In one embodiment, a multifunctional valve is configured to receive a liquefied heat transfer fluid from the condenser and a hot vapor from the compressor. A saturated vapor line connects the outlet of the multifunctional valve to the inlet of the evaporator and is sized so as to substantially convert the heat transfer fluid exiting the multifunctional valve into a saturated vapor prior to delivery to the evaporator. The multifunctional valve regulates the flow of heat transfer fluid through the valve by monitoring the temperature of the heat transfer fluid returning to the compressor through a suction line coupling the outlet of the evaporator to the inlet of the compressor.

Abstract: A vapor compression system including a line for flowing heat transfer fluid, a compressor connected with the line for increasing the pressure and temperature of the heat transfer fluid, a condenser connected with the line for liquefying the heat transfer fluid, and an expansion device connected with the line for expanding the heat transfer fluid. The expansion device includes a housing defining a first orifice, and at least one blade connected with the housing, wherein the blade is movable between a first position and a second position, wherein the first orifice is larger in the first position than in the second position. The vapor compression system also includes an evaporator connected with the line for transferring heat from ambient surroundings to the heat transfer fluid.

Abstract: A vapor compression system having a line for flowing heat transfer fluid, a compressor and a condenser both connected with the line. The vapor compression system also has an expansion device connected with the line for expanding the heat transfer fluid. The expansion device has a housing defining a housing orifice and at least one ball within the housing. The ball forms at least two channels, wherein each channel defines a channel orifice. The effective cross-sectional area of the one channel orifice is greater than the effective cross-sectional area of the other channel orifice. Moreover, the ball is movable between a first position and a second position, wherein the housing orifice is effectively made larger in the first position than in the second position. The vapor compression system also has an evaporator connected with the line for transferring heat from ambient surroundings to the heat transfer fluid.

Abstract: A vapor compression refrigeration system includes an evaporator, a compressor, and a condenser interconnected in a closed-loop system. In one embodiment, a multifunctional valve is configured to receive a liquefied heat transfer fluid from the condenser and a hot vapor from the compressor. A saturated vapor line connects the outlet of the multifunctional valve to the inlet of the evaporator and is sized so as to substantially convert the heat transfer fluid exiting the multifunctional valve into a saturated vapor prior to delivery to the evaporator. The multifunctional valve regulates the flow of heat transfer fluid through the valve by monitoring the temperature of the heat transfer fluid returning to the compressor through a suction line coupling the outlet of the evaporator to the inlet of the compressor.

Abstract: A vapor compression system includes an evaporator, a compressor, and a condenser interconnected in a closed-loop system. In one embodiment, a multifunctional valve is configured to receive a liquefied heat transfer fluid from the condenser and a hot vapor from the compressor. A saturated vapor line connects the outlet of the multifunctional valve to the inlet of the evaporator and is sized so as to substantially convert the heat transfer fluid exiting the multifunctional valve into a saturated vapor prior to delivery to the evaporator. The multifunctional valve regulates the flow of heat transfer fluid through the valve by monitoring the temperature of the heat transfer fluid returning to the compressor through a suction line coupling the outlet of the evaporator to the inlet of the compressor.

Abstract: A vapor compression system includes an evaporator, a compressor, and a condenser interconnected in a closed-loop system. In one embodiment, a multifunctional valve is configured to receive a liquefied heat transfer fluid from the condenser and a hot vapor from the compressor. A saturated vapor line connects the outlet of the multifunctional valve to the inlet of the evaporator and is sized so as to substantially convert the heat transfer fluid exiting the multifunctional valve into a saturated vapor prior to delivery to the evaporator. The multifunctional valve regulates the flow of heat transfer fluid through the valve by monitoring the temperature of the heat transfer fluid returning to the compressor through a suction line coupling the outlet of the evaporator to the inlet of the compressor.