Rotary heat-exchanger for glass batch and/or cullet, comprising a stationary casing having a gas inlet and outlet, and an interior region between the gas inlet and outlet; a chamber positioned in the casing rotatable with respect to the casing and configured to receive batch material or a mixture with cullet; at least one heat exchange tube in the casing in fluid communication with the gas inlet and outlet; a feeder in communication with the chamber and comprising a feeder housing configured to discharge the batch material or mixture of batch material and cullet into the chamber along an infeed length and in contact with the at least one tube; wherein the infeed length is a length effective to heat the batch or mixture with cullet material up to at least 100° C. in the infeed length. A method of preheating glass batch is also disclosed.

Rotary heat-exchanger for glass batch and/or cullet, comprising a stationary casing having a gas inlet and outlet, and an interior region between the gas inlet and outlet; a chamber positioned in the casing rotatable with respect to the casing and configured to receive batch material or a mixture with cullet; at least one heat exchange tube in the casing in fluid communication with the gas inlet and outlet; a feeder in communication with the chamber and comprising a feeder housing configured to discharge the batch material or mixture of batch material and cullet into the chamber along an infeed length and in contact with the at least one tube; wherein the infeed length is a length effective to heat the batch or mixture with cullet material up to at least 100° C. in the infeed length. A method of preheating glass batch is also disclosed.

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.

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.

A rotating heat pipe is used for temperature control of electric motors and generators and other rotating heat generating assemblies to ensure their proper operation. The heat pipe is integral with the shaft, and unlike conventional devices, 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. This scraped surface mechanism is preferentially driven by a magnetic coupling to eliminate issues related to leaks of the heat transfer material.

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.

A rotary heat exchanger includes: a tubular-shaped heat transfer tubular body (3) which is rotatable with a central axis (C) as a rotation center, which allows a first medium (11) to flow therein, and outside of which a second medium (12) having a temperature different from a temperature of the first medium (11) flows; a central member (2) which is provided on an inner side of the heat transfer tubular body (3) in a radial direction and which is fixed coaxially with the heat transfer tubular body (3); and an outer sliding contact member (6) which is in sliding contact with an outer circumferential surface of the heat transfer tubular body (3), and the heat transfer tubular body (3) is rotatably supported with respect to the central member (2) via bearings (17, 18) disposed at two end portions of the central member (2) in an axial direction.

The invention relates to an apparatus for cross-sectionally shaping a multiplicity of plastics strands guided in parallel alongside one another over at least one rotatable shaping roller (18, 19, 20), in which the shaping roller is provided on its surface with a plurality of encircling shaping recesses which are arranged in parallel and in which the cross section of the plastics strands is shapeable in accordance with the cross-sectional shape of the shaping recesses, wherein preferably three shaping rollers (18, 19, 20) of the same type for sequentially shaping the plastics strands are arranged transversely to the running path of the plastics strands, wherein the plastics strands are guided between a pair of two successive shaping rollers (19, 20) on a first side of the plastics strands and a third shaping roller (18), which is arranged, between the first (19) and second shaping roller (20) of the pair of shaping rollers, on the second side of the plastics strands in the running direction of the plastics strands, and the shaping rollers are mounted in lateral guide plates by means of quick-change apparatuses.

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.