A heat exchanger includes: flat pipes vertically arrayed; and fins that partition a space between adjacent ones of the flat pipes into air flow passages. Each of the flat pipes includes a passage for a refrigerant. The flat pipes are divided into heat exchange sections vertically arranged side by side. Each of the heat exchange sections includes: a main heat exchange section that communicates with a gas-side entrance communication space, and a sub heat exchange section that is connected in series to the main heat exchange section below the main heat exchange section and communicates with a liquid-side entrance communication space.

A heat pump, having: an evaporator for evaporating a working liquid; a liquefier for condensing a compressed working vapor; a compressor motor with a suction mouth having attached thereto a radial impeller to convey a working vapor evaporated in the evaporator through the suction mouth; a guide space arranged to guide a working vapor conveyed by the radial impeller into the condenser; and a cooling device for cooling the guide space or the suction mouth with a liquid, wherein the cooling device is configured to guide the liquid onto an outside of the guide space or of the suction mouth, wherein the outside is not in contact with the working vapor, and wherein an inside of the guide space or of the suction mouth is in contact with the working vapor.

An evaporator for an ice machine comprising a tube on which a second outer tube with a larger diameter is placed, creating a cylindrical chamber, and wherein supplementary rings are located on the upper and lower ends thereof which seal the assembly; and wherein the tube incorporates therein a plurality of mechanized grooves, favoring the outlet of the ice, decreasing the effort necessary for said operation and therefore the noise generated.

Various embodiments include a device for increasing the heat yield of a heat source comprising: a heat sink; a heat pump with a condenser and an evaporator; and a heat sink feed and a heat sink return providing a thermal coupling to the heat source with a heat exchanger. The condenser is thermally coupled to the heat sink feed for emitting heat to the heat sink. The evaporator is thermally coupled to the heat sink return for absorbing heat.

A heat pump arrangement includes a heat pump device, an evaporator cycle interface for inputting liquid to be cooled into the heat pump device and for outputting cooled liquid out of the heat pump device, a condenser cycle interface for inputting liquid to be heated into the heat pump device and for outputting heated liquid out of the heat pump device, a controllable heat exchanger for controllably coupling the evaporator cycle interface and the condenser cycle interface, and a control for controlling the controllable heat exchanger in dependence on an evaporator cycle temperature in the evaporator cycle interface or a condenser cycle temperature in the condenser cycle interface.

In one embodiment, an apparatus includes an insert for an evaporator coil. The insert is located within the evaporator coil. The insert for the evaporator coil reduces refrigerant charge in the evaporator coil and causes refrigerant flowing through the evaporator coil to change direction. The insert for the evaporator coil includes a solid core and a plurality of support legs.

A working fluid distribution system for a heating, ventilation, and/or air conditioning (HVAC) system includes a distributor tube composed of a flexible material and configured to supply a working fluid to a component of an HVAC circuit of the HVAC system. The fluid distribution system includes an actuator coupled to the distributor tube and configured to be actuated to adjust a geometry of the distributor tube. Additionally, the fluid distribution system includes a controller configured to instruct the actuator to adjust the geometry of the distributor tube based on an operating condition.

In one embodiment, a cooling system includes an evaporator, which further includes an evaporator tube, a first mechanical wave emitter, and a control system communicatively coupled to the first mechanical wave emitter. The cooling system is configured to circulate refrigerant through the evaporator tube to facilitate heat exchange between the refrigerant and fluid surrounding the evaporator tube. The first mechanical wave emitter is configured to output first mechanical waves to the evaporator tube, and the control system is configured to instruct the first mechanical wave emitter to output the first mechanical waves to enhance nucleation of the refrigerant in the evaporator tube.

There are provided a magnetic work body capable of being easily laminated and a magnetic heat pump device using the same. A magnetic work body is provided with a plate-shaped body 31 formed of a magnetic work substance, in which a gap forming deformation portion 32 serving as a gap adjusting member in laminating is formed in the plate-shaped body.

A refrigeration system includes a refrigeration circuit and a coolant circuit separate from the refrigeration circuit. The refrigerant circuit includes a gas cooler/condenser, a receiver, and an evaporator. The coolant circuit includes a heat exchanger configured to transfer heat from a refrigerant circulating within the refrigeration circuit into a coolant circulating within the coolant circuit, a heat sink configured to remove heat from the coolant circulating within the coolant circuit, and a magnetocaloric conditioning unit configured to transfer heat from the coolant within a first fluid conduit of the coolant circuit into the coolant within a second fluid conduit of the coolant circuit. The first fluid conduit connects an outlet of the heat exchanger to an inlet of the heat sink, whereas the second fluid conduit connects an outlet of the heat sink to an inlet of the heat exchanger.