The invention disclosed generally relates to a heat exchange system comprising an outer tube, an inner tube generally located within the outer tube and comprising a longitudinal axis running along the length of the inner tube, and a fixed elongate member located within the inner tube and comprising a longitudinal axis running along the length of the elongate member. The inner tube is mounted on a rotational drive system to rotate the inner tube about its longitudinal axis. The system further includes at least one inlet and at least one outlet. One or more projecting members project from an outer surface of the elongate member, an outer surface of the inner tube or an inner surface of the outer tube.

The invention disclosed generally relates to a heat exchange system comprising an outer tube, an inner tube generally located within the outer tube and comprising a longitudinal axis running along the length of the inner tube, and a fixed elongate member located within the inner tube and comprising a longitudinal axis running along the length of the elongate member. The inner tube is mounted on a rotational drive system to rotate the inner tube about its longitudinal axis. The system further includes at least one inlet and at least one outlet. One or more projecting members project from an outer surface of the elongate member, an outer surface of the inner tube or an inner surface of the outer tube.

A multitubular rotary heat exchanger has a stationary shielding unit. The shielding unit is positioned in close proximity to a tube plate outside a heating or cooling region. A stationary surface of the shielding unit is positioned in opposition to and in close proximity to an end opening of a heat transfer tube moving in an upper zone of the heating or cooling region, thereby transiently reducing or restricting the flow rate of the thermal medium fluid flowing through the heat transfer tube moving in the upper zone.

A multitubular rotary heat exchanger has a stationary shielding unit. The shielding unit is positioned in close proximity to a tube plate outside a heating or cooling region. A stationary surface of the shielding unit is positioned in opposition to and in close proximity to an end opening of a heat transfer tube moving in an upper zone of the heating or cooling region, thereby transiently reducing or restricting the flow rate of the thermal medium fluid flowing through the heat transfer tube moving in the upper zone.

A rotary tube apparatus for cooling or heating flowable granular bulk materials, in particular a sectional cooler (8) for cooling a flowable granular solid material, with structures mounted on its walls for increasing the thermal conduction, characterized in that the structures include hollow tubes (10).

A rotary tube apparatus for cooling or heating flowable granular bulk materials, in particular a sectional cooler (8) for cooling a flowable granular solid material, with structures mounted on its walls for increasing the thermal conduction, characterized in that the structures include hollow tubes (10).

This invention relates to temperature control of rotating shafts or assemblies to ensure proper operation and high reliability. Though it is particularly well suited for cooling high power, compact motors used in automotive applications, it can also be used to dissipate heat efficiently from other rotating assemblies to ensure that their temperatures remain within acceptable limits. The invention achieves this by utilizing a rotating heat pipe that incorporates a solid-liquid phase change material as the heat transfer/transport material. In addition, it comprises a scraped surface heat exchange mechanism at the heat dissipation region to allow for high cooling rates as required.

An enclosure for an optoelectronic sensor. The enclosure includes a thermodynamically open first chamber; a thermodynamically closed second chamber; and a rotor extending from the first chamber into the second chamber. The rotor includes a shaft part in the second chamber coaxial to the rotational axis of the rotor. The shaft part mounts an optoelectronic sensor device. The rotor includes a head part in the first chamber coaxial to the rotational axis of the rotor. A heat dissipation fan is fixedly arranged on and surrounds the head part. The head part and the fan are rotatably and thermally coupled to the shaft part to rotate simultaneously with the shaft part. The rotor transfers heat over the shaft part from the second chamber to the head part and the fan dissipates the transferred heat to an environment.

An example memory module cooler may include a first liquid manifold, a second liquid manifold, and a cooling tube connected to the first and second liquid manifolds such that. The cooling tube may be connected to the manifolds such that (1) liquid coolant can flow from the first liquid manifold through the cooling tube to the second liquid manifold, and (2) the cooling tube can be rotated relative to the first and second liquid manifolds around a longitudinal axis of the cooling tube. The cooling tube may have an oblong cross-sectional profile.

A rotary cooler is provided, consisting of a plurality of transport tubes for transporting material to be cooled, wherein the plurality of transport tubes are arranged about an axis of rotation and are adapted to be filled jointly via a filling region with material to be cooled, characterized in that each transport tube is arranged substantially concentrically in a cooling tube in which a cooling medium flows and cools the material to be cooled via the wall of the transport tube. Furthermore, a method for operating said rotary cooler is provided.