A heat exchanger includes a tube, a corrugated fin, and a plurality of grooves. The corrugated fin has a plurality of bent portions and a plurality of fin main bodies disposed between the bent portions. The multiple grooves are arranged at specified intervals from each other and are formed on a surface of the corrugated fin to enhance the hydrophilicity of the surface. The corrugated fin includes a first thick portion in which at least one of the grooves is included and a second thick portion thicker than the first thick portion in a cross-sectional view along an extending direction of the bent portions.

A heat exchanger including: a header; flat tubes connected to the header and disposed in line along a longitudinal direction of the header; a first partition that partitions an inner space of the header into a first space on a side where the flat tubes are connected and a second space on a side opposite to the first space; and a second partition that partitions the inner space of the header into a first side and a second side. The first side is one side of the header in the longitudinal direction and the second side is opposite to the first side. The first partition has a common opening. The common opening includes an insertion opening and a refrigerant opening. A refrigerant moves between the first space and the second space via the refrigerant opening. The second partition is inserted into the insertion opening.

The present invention provides a heat exchange device featuring gas-liquid separation, comprising an evaporator unit and a condenser unit. The condenser unit comprises a central main guide tube, a plurality of condensation tubes connected to the two lateral sides of the central main guide tube, and a heat dissipation fin assembly provided on a periphery of each condensation tube. The central main guide tube comprises a gaseous-phase confluence chamber and a liquid-phase confluence chamber. The gaseous-phase confluence chamber is provided in an upper portion of the central main guide tube and communicates with the gas outlet through a gaseous-phase connection tube, and the liquid-phase confluence chamber is provided in a lower portion of the central main guide tube and communicates with the evaporation chamber through a liquid-phase connection tube. Each condensation tube comprises a first communicating section in communication with the gaseous-phase confluence chamber, a bent section bent downward from the first communicating section, and a second communicating section connecting the bent section to the liquid-phase confluence chamber.

Embodiments of the present disclosure are directed to a heat exchanger system that includes a conduit configured to flow a working fluid therethrough, where the conduit has a first portion, a second portion, and a bend directly coupling the first portion and the second portion, where the first portion includes a first header connection, the second portion includes a second header connection, and the bend is distal to the first header connection and the second header connection and a support plate coupled to the bend and positioned between the first portion and the second portion of the conduit.

A combined heat exchanger module includes a first upper tank introducing cooling water into the combined heat exchanger module, a lower tank introducing the cooling water into or discharging the cooling water from the combined heat exchanger module, a second upper tank for discharging the cooling water from the combined heat exchanger module, first heat radiating channels connected with the first upper tank and the lower tank, second heat radiating channels connected with the lower tank and the second upper tank, and thermoelectric elements, in which each of the thermoelectric elements has a first surface in contact with the second heat radiating channels and a second surface exposed to air, thereby performing heating of air by use of both the cooling water and the thermoelectric elements or performing cooling of the cooling water by use of the thermoelectric elements.

The present disclosure relates to a novel high-low temperature radiator for internal combustion engine engineering machinery, which is provided with a water inlet pipe, a water inlet chamber, a radiator core body, a water outlet chamber, a water separation plate and a water outlet pipe which are sequentially communicated, the water inlet pipe is communicated with the water inlet chamber, and the water inlet chamber is communicated with the radiator core body; the radiator core body is divided into two parts: a radiator low-temperature core body and a radiator high-temperature core body; the water outlet chamber is divided into two parts: a low-temperature water outlet chamber and a high-temperature water outlet chamber, and the water outlet pipe is divided into a low-temperature water outlet pipe and a high-temperature water outlet pipe according to the core body and the water chamber from which the cooling liquid flows.

According to an aspect of the present disclosure, a turbulator inserted into a tube of a heat exchanger, when it is assumed that the water flows horizontally along a water flow direction along the tube and a combustion gas flows vertically from an upper side to a lower side to cross the tube, and a direction that is perpendicular to both the water flow direction and an upward/downward direction is defined as a leftward/rightward direction, a body part extending along the water flow direction, having a plate shape that is perpendicular to the leftward/rightward direction, and inserted into the tube, and an upstream side wing part protruding from an upstream side portion of the body part with respect to the water flow direction along at least one direction of the leftward/rightward direction and extending in a direction that is inclined upwards with respect to the water flow direction.

The heat exchanger has tubes and a header tank that is located at an end of the tubes in a longitudinal direction and communicates with the tubes. The header tank has a core plate that connects to the tubes and a tank body that is fixed to the core plate. The core plate has a tube connection surface, a sealing surface, and an inclined surface that connects the tube connection surface and the sealing surface with each other. A distance between the tube connection surface and an end surface of the tubes in the longitudinal direction is different from a distance between the sealing surface and the end surface in the longitudinal direction by disposing the inclined surface to incline with respect to the longitudinal direction. The tubes connect to the tube connection surface and the inclined surface in a condition of being inserted to the tube connection surface and the inclined surface.

Disclosed is a microchannel heat exchanger comprising a primary core including a first header and a second header and a secondary core including a first auxiliary header and a second auxiliary header, further comprising a first header interconnect extending between the first header and the first auxiliary header and having a first interconnect fluid passage extending therethrough; and a second header interconnect extending between the second auxiliary header and the second header and having a second interconnect fluid passage extending therethrough.

Provided is a refrigerator. The refrigerator includes a main body having a storage space and an evaporator accommodated in the main body and configured to cool cold air supplied to the storage space. The evaporator includes a pair of headers facing each other, a plurality of flat tubes which have both ends respectively connected to the pair of headers and through which a refrigerant flows, and a plurality of plate-shaped heat dissipation fins penetrated by the plurality of flat tubes. Each of the flat tubes has a plate shape and is coupled to each of the headers in a state of being inclined at a set angle.