Abstract: Provided is a water supply apparatus (100) including: a cooling tank (1), a refrigerating systems and a heat exchange device (4). The cooling tank is provided with a cold water outlet (11) and suitable to connected to water source; the refrigeration system comprises a compressor (31), a condenser (32), a throttling device (33) and the evaporator (34). The heat exchange device (4) is arranged outside the cooling tank (1) and provided with a water inlet (41) and a water outlet (42) communicating with the inside of the cooling tank (1), wherein the heat exchange device (4) is constructed such that water in the cooling tank (1) flows into the heat exchange device (4) from the water inlet (41) and performs a heat exchange with the evaporator (34), the water after the heat exchange flows out from the water outlet (42) and flows back to the cooling tank (1).

Abstract: A flow device for a refrigerant/compressor system is installed between the outlet of an evaporator and the suction port of a compressor. The device includes a floating element that helps inhibit liquid refrigerant from entering the compressor. Under certain conditions where liquid refrigerant discharges from the evaporator, the floating element floats in the discharged liquid. Upon doing so, the float rises to a generally closed position where the float obstructs a main fluid outlet that leads to the compressor. In the closed position, refrigerant can still pass through the flow device, but through a more restricted outlet. To prevent the float from undesirably rising under the impetus of refrigerant vapor flowing at high flow rates, the floating element itself includes a flow-restricting passageway, radial guides, and/or a streamlined shape. The float can be incorporated within a manifold of a multi-coil or multi-circuited heat exchanger.

Abstract: An ice cream machine for cooling liquid ice cream into frozen ice cream includes an evaporator having a cylindrical cooling tank and an auxiliary tank or section. The auxiliary tank or section ensures that a cooling chamber is surrounded by liquid refrigerant during normal operation. The flooding of the cylindrical cooling tank provides more efficient and even cooling in an interior cooling chamber. The more efficient cooling allows the ice cream machine to utilize a smaller compressor, thereby reducing the cost and energy consumption of the ice cream machine. The auxiliary tank can be a coil of tubing, a cylindrical container positioned above the cylindrical cooling tank, or a portion of the cylindrical cooling tank.

Abstract: A refrigeration system comprises a compressor, a condenser, a receiver and an evaporator, each having an inlet and an outlet, and a separator having an inlet and a first and a second outlet, connected to each other conventionally. The separator is positioned laterally of the evaporator and closer thereto than to the compressor. A controller ensures overfeed of the evaporator by regulating the feed rate of liquid refrigerant from the receiver such that the separator is feeding the evaporator with liquid refrigerant in proportion to demand and safeguarding the desired overfeed. The separator comprises a cylindrical container having two outlets and an inlet for separating the vapor and liquid components of a refrigerant. The inlet is directed tangentially into the cylindrical container.

Abstract: A phase separator of a time shared dual evaporator cycle refrigerator includes an attachment unit formed at the end of a suction pipe and a cap formed at the attachment unit which prevents a flow of liquid refrigerant into a compressor. The liquid refrigerant which is flowing into a refrigerator compartment evaporator is expanded in a second capillary tube to be evaporated in a freezer compartment evaporator, and is then returned into the compressor. A refrigerant controlling unit determines the path of the refrigerant.

Abstract: The present invention is directed to a system for avoiding possible compressor damage occasioned by major flood back of the suction accumulator in a refrigeration system. In one embodiment of the invention, a float member slides upwardly and downwardly upon the stand pipe of the accumulator in response to the level of refrigerant therein, and when the refrigerant rises to a critical level, the float member is effective to block the outlet openings in the upper end of the suction accumulator, preventing flow of refrigerant to the compressor sufficient in volume to cause damage thereto. In another embodiment of the invention, a float member having magnet means associated therewith moves vertically in opposite directions upon a tubular support connected to the suction accumulator structure.

Abstract: Method and Apparatus for cooling a mold having plural parallel cooling passages therethrough, the mold having flow control means at the inlet and sight glasses at the outlets and being arranged for overfeed so that liquid is always present in all cooling passages to avoid hot spots in the mold.

Abstract: A method of making ice in a tube shell ice-maker that has a false bottom compartment in which trapped refrigerant gas is present to prevent ice formation around the bottom during ice-making and from which hot gaseous refrigerant flows upwardly into the refrigerant within the tubes during defrosting, the liquid remaining within the tubes, whereby delay in initiating further ice-making is minimized.