A heat exchanger has a fluid flow passage defined between first and second plates, and at least one through fitting having a one-piece construction. The through fitting has a first portion extending through a first hole of the first plate, a second portion extending a second hole of the second plate, and a radially outwardly extending third portion located between the first and second plates. The third portion of the through fitting has a first radially-extending surface in contact with the inner surface of the first plate and a second radially-extending surface in contact with the inner surface of the second plate. At least one communication passage is provided through the third portion of the through fitting between the fluid flow passage and the hollow interior of the through fitting. A plurality of the heat exchangers may be fluidly connected in parallel flow arrangement.

An electrical device, such as a transformer or an inductor, for connecting to a high-voltage network includes a tank which is filled with an insulating fluid and which encases a magnetizable core and at least one winding. A cooling system includes at least one radiator which is arranged outside the tank and is connected to same for circulating the insulating fluid via the radiator. The radiator has at least two heat exchange elements connected in parallel with one another. In order to cost-effectively accelerate a cold start, one of the heat exchange elements is fitted with a thermal insulation unit which reduces the heat transfer from the insulating fluid into the insulated heat exchange element to the atmosphere in comparison with a heat exchange element with no thermal insulation unit.

A method of making and operating a heat exchanger that includes introducing a first fluid into a fluid chamber of a membrane heat exchanger to change the membrane heat exchanger from a flat configuration to a non-flat configuration while the membrane heat exchanger is disposed within a chamber with the membrane heat exchanger extending from a first end to a second end of the chamber and generating a fluid flow of the first fluid within the fluid chamber of the membrane heat exchanger between first and second ends of the membrane heat exchanger, the first fluid generating heat exchange with a second fluid disposed within the chamber. The membrane heat exchanger includes sheets that form a fluid chamber.

A stacked-plate heat exchanger for cooling a plurality of heat-generating electronic components arranged in a plurality of layers comprises a stack of flat tubes defining a plurality of parallel fluid flow passages, the tubes being separated by spaces for receiving the electronic components. One or more flow-restricting ribs is arranged within at least some of the fluid flow passages to partially block fluid flow between at least one the manifolds and the heat transfer area by reducing the height of the fluid flow passage outside the heat transfer area, along at least a portion of the width of the fluid flow passage, in order to improve the flow distribution of a heat transfer fluid between and within the fluid flow passages of the heat exchanger, and to minimize bypass flow at the outer edges of the fluid flow passage.

A collapsible heat exchanger comprising a first sheet; a second sheet on an opposing side of the collapsible heat exchanger from the first sheet; a first expansion element coupled to and extending between the first and second sheets; a second expansion element coupled to and extending between the first and second sheets; a manifold including a plurality of channels defined by at least one of a plurality of internal sidewalls; and a heat exchanger cavity defined at least by the plurality of channels and a first and second fluid conduit.

A heat exchanger body that includes a circulation path through which a coolant is circulated and performs heat exchange between the coolant flowing through the circulation path and an electronic component; a circulation pump that supplies the coolant to the heat exchanger body; an accumulation determination unit that determines whether a foreign matter accumulation condition is fulfilled that is satisfied when foreign matter is expected to be accumulated in at least a part of the circulation path; and a process execution unit that in response to the foreign matter accumulation condition being satisfied, executes a foreign matter cleaning process of removing the foreign matter accumulated in the circulation path and cleaning the circulation path. In the foreign matter cleaning process, the process execution unit reduces an amount of coolant supplied from the circulation pump so that the coolant has a superheating degree in a nucleate boiling region.

A heat exchanger module unit that provides heat exchange between a fluid and a heat medium by indirect heat exchange through a phase-change material disposed between movement paths of the fluid and the heat medium movement paths, includes: a multiple number of plates having a partition, which is formed with a through-hole through which the fluid and the heat medium move, are stacked with a spacing gap, through which the fluid and the heat medium move, at one side of the partition; the spacing gaps are selectively connected through a connector connecting the respective through-holes so as to form a fluid passage and a heat medium passage through which the fluid and the heat medium move independently respectively; the spacing gap, in which the phase-change material is received, is located and disposed between the spacing gaps forming the fluid passage and the heat medium passage through which the fluid and the heat medium move respectively such that heat exchange is made between the fluid and the heat medium through the phase-change material. One of the fluid and the heat medium is disposed at one side of the phase-change material and another phase-change material is disposed at the opposite side thereof.

A drying device for processing a gas to be dried, in particular air, comprises an air/air exchanger which includes an inlet for the gas to be dried and an outlet for the dried gas, an evaporator which receives the gas to be dried from the air/air exchanger, the evaporator being formed by means of a plurality of adjacent layers. The layers comprise at least a first layer configured for the passage of a refrigerating fluid, at least a second layer configured to receive the gas to be dried from the air/air exchanger and a plurality of third layers configured to receive a phase change material. The layers are arranged in a sequence which comprises in alternation a first layer, a third layer, a second layer and a further third layer.

A heater includes: a substrate including a first surface and a second surface located opposite to the first surface relative to the substrate; a first heating pattern disposed on a first-surface side of the substrate; a second heating pattern disposed on the first-surface side of the substrate and located at a position different from a position of the first heating pattern; a first terminal to which electricity is to be supplied; a first power-supply pattern electrically connecting the first terminal and the first heating pattern to each other and disposed on a second-surface side of the substrate; and a first electrically-continuous portion extending through the substrate and electrically connecting the first power-supply pattern and the first heating pattern to each other.

A multi-fluid heat exchanger (100) includes a primary section (102) and a secondary section (104) arranged contiguous with the primary section (102). The multi-fluid heat exchanger (100) further includes a first heat transfer channel (106) arranged to carry a first fluid (118) and the first heat transfer channel (106) extends between the primary section (102) and the secondary section (104) and carries the first fluid (118) between the sections (102,104). The multi-fluid heat exchanger (100) also includes a second heat transfer channel (108) disposed only at the primary section (102) and arranged to carry a second fluid (114) for heat exchange between the first and second fluids (112,114) at the primary section (102) and a third heat transfer channel (110) disposed only at the secondary section (104) and arranged to carry a third fluid (116) for heat exchange between the first and third fluids (112,116) at the secondary section (104).