Systems and methods described herein are directed to rotary heat exchangers configured to transfer heat to a heat transfer medium flowing in substantially axial direction within the heat exchangers. Exemplary heat exchangers include a heat conducting structure which is configured to be in thermal contact with a thermal load or a thermal sink, and a heat transfer structure rotatably coupled to the heat conducting structure to form a gap region between the heat conducting structure and the heat transfer structure, the heat transfer structure being configured to rotate during operation of the device and flow a heat transfer medium in a substantially axial direction through the heat transfer structure. In example devices heat may be transferred across the gap region from a heated axial flow of the heat transfer medium to a cool stationary heat conducting structure, or from a heated stationary conducting structure to a cool axial flow of the heat transfer medium.

An air conditioning system having a compact configuration may include an evaporator and a heater core that have a cylindrical shape. The evaporator defines a cavity. The heater core is positioned within the cavity such that the evaporator and the heater core are coaxially positioned with each other about a center axis. The heater core is configured to rotate about the center axis to draw in air.

The invention relates to a fixing device (1) for reinforcing the joint of a rotary heat exchanger (2) which has a hub part (5) and a heat storage part (6) made of corrugated and flat layers that are wound in an alternating manner. The aim of the invention is to reinforce the joint of the rotary heat exchanger with as little technical complexity as possible. This is achieved in that the rotary heat exchanger (2) can be arranged in the fixing device (1) in a stationary manner, the fixing device (1) has a screw drill device (10) which is arranged on the outer circumference of the rotary heat exchanger (2) arranged in the fixing device (1) and by means of which at least one screw spoke (17) can be drilled or screwed from the outer lateral surface (9) of the rotary heat exchanger (2) through the corrugated and flat layers of the heat storage part (6) of the rotary heat exchanger (2) and into the hub part (5) thereof.

The invention relates to a fixing device (1) for reinforcing the joint of a rotary heat exchanger (2) which has a hub part (5) and a heat storage part (6) made of corrugated and flat layers that are wound in an alternating manner. The aim of the invention is to reinforce the joint of the rotary heat exchanger with as little technical complexity as possible. This is achieved in that the rotary heat exchanger (2) can be arranged in the fixing device (1) in a stationary manner, the fixing device (1) has a screw drill device (10) which is arranged on the outer circumference of the rotary heat exchanger (2) arranged in the fixing device (1) and by means of which at least one screw spoke (17) can be drilled or screwed from the outer lateral surface (9) of the rotary heat exchanger (2) through the corrugated and flat layers of the heat storage part (6) of the rotary heat exchanger (2) and into the hub part (5) thereof.

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 rotary heat exchanger through which a first fluid flowan outside air or inlet air flow, for exampleand a second fluid flowan exit air or outgoing air flow, for examplecan flow in a counterflow configuration, has a rotatably mounted rotor (5) that has a first flow sector for the first fluid flow and a second flow sector for the second fluid flow through which the rotor (5) passes during a rotation, a frame in which the rotor (5) is rotatably supported, and a sealing assembly (9) by means of which an inflow side of the first fluid flow and an outflow side of the second fluid flow can be separated from the outflow side of the first fluid flow and from an inflow side of the second fluid flow, respectively. In order to simplify the sealing assembly, with the aim being that a reliable seal between the inflow and outflow sides of the two fluid flows be automatically ensured during operation of the rotary heat exchanger, it is proposed that the sealing assembly (9) have a first seal (12) that bears sealingly against the side of a partition (10) directed upstream into the first fluid flow (2), and a second seal (13) that bears sealingly against the side of the same partition (10) directed upstream into the second fluid flow (3).

The present invention relates generally to the rotary high density heat exchangers. In one embodiment, the present invention relates to rotary high density heat exchangers that contain one or more fan blades where each fan blade contains heat exchanging surfaces on the surface thereof.

The present invention relates generally to the rotary high density heat exchangers. In one embodiment, the present invention relates to rotary high density heat exchangers that contain one or more fan blades where each fan blade contains heat exchanging surfaces on the surface thereof.

According to the present specification there is provided a rotatable heat sink device which comprises a heat sink configured to enclose a cooling fluid, and the heat sink is rotatable about a rotational axis. The heat sink, in turn, comprises a first portion configured to receive thermal energy from a source external to the heat sink, and a second portion configured to dissipate at least a portion of the thermal energy to surroundings external to the device. The device further comprises an optical wavelength conversion material disposed on an outside surface of the first portion of the heat sink, and an agitator disposed inside the heat sink. The agitator is rotationally independent of the heat sink and is configured to promote circulation of the cooling fluid between the first portion and the second portion.

A chemical heat storage device includes a reaction vessel accommodating a heat storage material, a heat exchange flow path provided so that a heat-exchange fluid flows along an outer surface of the reaction vessel, and the chemical heat storage device being configured in such a manner that the reaction vessel is rotated and the heat storage material is agitated, by a flow force of the heat-exchange fluid.