A method of forming a refrigeration heat exchanger comprising a suction line and a capillary line includes juxtaposing at least a portion of the suction and capillary lines to form a juxtaposed portion, at least partially enveloping the juxtaposed portion with a metal material, and encapsulating the capillary line to the suction line along at least a portion of the juxtaposed portion.

The present invention relates to a heat exchanger (1) comprising: a heat exchange core bundle (3) in which a first heat-transfer fluid circulates, at least one inlet tank (5a) or outlet tank (5b) for a second heat-transfer fluid, at least one collector (7) arranged on the periphery of the heat exchange core bundle (3) and comprising a lateral wall (75) of which at least two portions (77) are folded over so as to fix the tank (5a, 5b) by crimping against the heat exchange core bundle (3),
the lateral wall (75) following the contour of at least one corner of the heat exchange core bundle (7), said lateral wall (75) comprising, on each side of the corner, a folded-over portion (77) and comprising in the region of said corner a non-folded-over portion (79), the folded-over portions (77) being connected continuously to the non-folded over portion (79).

The present invention relates to a heat exchanger (1) comprising: a heat exchange core bundle (3) in which a first heat-transfer fluid circulates, at least one inlet tank (5a) or outlet tank (5b) for a second heat-transfer fluid, at least one collector (7) arranged on the periphery of the heat exchange core bundle (3) and comprising a lateral wall (75) of which at least two portions (77) are folded over so as to fix the tank (5a, 5b) by crimping against the heat exchange core bundle (3),
the lateral wall (75) following the contour of at least one corner of the heat exchange core bundle (7), said lateral wall (75) comprising, on each side of the corner, a folded-over portion (77) and comprising in the region of said corner a non-folded-over portion (79), the folded-over portions (77) being connected continuously to the non-folded over portion (79).

A modular assembled artificial skating rink includes a refrigerating system, a plurality of liquid-supply main pipes and air-return main pipes in the same pipe line as the liquid-supply main pipes. The liquid-supply main pipes communicate with a liquid-supply header pipe. The air-return main pipes communicate with an air-return header pipe. The liquid-supply header pipe communicates with a refrigerant-fluid outlet of the refrigerating system through at least a liquid-supply standpipe. The air-return header pipe communicates with an air-recovery end of the refrigerating system through at least an air-return standpipe. Each liquid-supply main pipe is sheathed in a corresponding air-return main pipe, forming a plurality of groups of sleeve main pipes. The artificial skating rink is divided into different modular regions. Each of the regions has sleeve manifolds and ice-making pipes. Each liquid-supply main pipe has a refrigerant-fluid control valve bank, and each air-return main pipe has an air control valve bank.

Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; one or more outlet headers in fluid communication with one or more tube stacks; an outlet manifold in fluid communication with the one or more outlet headers; and a plurality of flow control devices to dynamically control the fluid flow to a respective inlet header.

Disclosed herein is a once-through evaporator comprising an inlet manifold; one or more inlet headers in fluid communication with the inlet manifold; one or more tube stacks, where each tube stack comprises one or more substantially horizontal evaporator tubes; the one or more tube stacks being in fluid communication with the one or more inlet headers; one or more outlet headers in fluid communication with one or more tube stacks; an outlet manifold in fluid communication with the one or more outlet headers; and a plurality of flow control devices to dynamically control the fluid flow to a respective inlet header.

An evaporator includes a cool storage material container. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces. The cool storage material container includes a container main body portion joined to the refrigerant flow tubes. The outward projecting portion extends from an upper end of the leeward edge or windward edge of the container main body portion. The outward projecting portion has an expansion portion projecting from the container main body portion and projecting thickness of the expansion portion is greater than a thickness of the container main body portion. The expansion portion is located outward of the fins. At least one of left and right side walls of the expansion portion is so constructed to deform when an internal pressure in the cool storage material container increases beyond a predetermined pressure.

A heat conduction member includes: a cylindrical ceramic body, a metal pipe on the outer periphery side of the cylindrical ceramic body, and an intermediate member held between the cylindrical ceramic body and the metal pipe. The cylindrical ceramic body has passages passing through from one end face to the other end face and allowing the first fluid to flow therethrough. The intermediate member is made of material having at least a part having a Young's modulus of 150 Gpa or less. The first fluid is allowed to flow through the inside of the cylindrical ceramic body while the second fluid having lower temperature than that of the first fluid is allowed to flow on the outer peripheral face side of the metal pipe to perform heat exchange between the first fluid and the second fluid.

A tubing element for a heat exchanger is at least partially a rigid elongated tubing having a first end, a second end, a first side wall and a second side wall. First and second side walls are substantially parallel to each other. The distance between first side wall and second side wall is considerably smaller than the width of first side wall and second side wall, resulting in a substantially overall flat tubing structure with connection walls on both sides. The tubing element has a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall. Fins define an angle enclosed by the fins and a connection wall. A heat exchanger, use of a tubing element, use of a heat exchanger and method of manufacturing of a tubing element to manufacture at least partially a heat exchanger are included.

A cooling system for a vehicle may include a cooling water temperature sensor, a cooling circulation fluid passage including first, second and third fluid passages, wherein the cooling water exhausted from the engine may be branched into the first fluid passage provided with a heater core, the second fluid passage provided with a radiator, and the third fluid passage provided with an exhaust heat recovery apparatus, a fluid flow adjusting valve provided on a point at which the cooling water passing through the cooling water temperature sensor may be branched into the first fluid passage to the third fluid passage to adjust a flow of the cooling water, and a controlling part controlling the first fluid passage to the third fluid passage to be selectively opened or closed by operating the fluid flow adjusting valve depending on the temperature of the cooling water, in a heating mode and a non-heating mode.