A heat storage arrangement for an intermediate storage of thermal energy. The heat storage arrangement includes at least one heat exchanger element which includes a liquid inlet and a liquid outlet, and at least one heat storage container which includes a heat storage medium. The at least one heat exchanger is stiff and has a liquid non-aqueous heat carrier having a freezing point of below −10° C. flow therein. The at least one heat storage container is flexible and closed, and is arranged to abut on the at least one heat exchanger element so that a heat transfer occurs between the liquid non-aqueous heat carrier and the heat storage medium.

The invention relates to a heat exchanger comprising a casing (2) inside which is housed, and fastened by brazing, a heat exchange assembly (3) comprising a stack of heat exchange plates, each plate (4) having at least one edge (14) for brazing to the casing (2). The heat exchanger is characterized by the fact that it includes means, called unfastening means (20, 21, 22, 23), designed to prevent the casing from being brazed to at least a portion of the edge (14) of at least one end plate (4E) of the stack (3). By virtue of the invention, the heat exchanger is more flexible and absorbs thermal stresses better.

A rapid warm-up heat exchanger for heating a fluid using exhaust gas includes multiple plate pairs that are joined by braze joints to form a stack. A fluid inlet manifold and a fluid manifold extend through the stack, and each one of the plate pairs defines a tortuous flow path for the fluid that extends between the fluid inlet and fluid outlet manifolds. A housing surrounds the stack, and together the housing and the stack define an exhaust flow path in spaces provided between adjacent plate pairs. A valve element can be provided within the housing in order to selectively direct exhaust flow through the exhaust flow path.

Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.

A plate heat exchanger plate ports and, between the ports, a heat transfer area partly divided by a barrier. The heat exchanger plate comprises a first port, a second port, a third port and a fourth port. Further, the heat exchanger plate is provided with a first transition area between the first and second ports and the heat transfer area, and a second transition area between the third and fourth ports and the heat transfer area, the first and second transition areas being provided with transition ports. The first transition area is open towards the heat transfer area, and the second transition area is separated from the heat transfer area by a sealing.

A brazed heat exchanger includes plates that are stacked or nested to define flow channels for multiple media. Inserts are arranged within at least some of the flow channels. Two different braze alloys having compositions based on different metals are used to form braze joints between the plates and the inserts. In some cases, a copper-based braze alloy is used for joints corresponding to flow channels for one of the media in order to provide high pressure-resisting strength to those flow channels, while an iron-based braze alloy is used for joints corresponding to flow channels for another of the media where dissolved copper is undesirable.

The invention relates to an indirect-type air cooler by way of which compressed charge air for an internal-combustion engine is cooled by means of a liquid, wherein the air cooler is constructed from stacked pairs of plates having fins which are disposed therebetween, and the brazed stack is disposed in a housing into which the charge air flows, flows through the fins and exits the housing again. The charge air exchanges heat with the liquid which flows in the plate pairs and which is introducible into the plate pairs via at least one inlet and via inlet-side plate openings which are flush in the stack and is dischargeable via at least one outlet by means of flush outlet-side plate openings. In order to further improve the performance potential of the air cooler, at least one venting element which extends to the exterior through an opening of the housing is connected to a liquid space within the stack.

A heat exchanger includes a heat exchanger core, an intake tank, and a flow limiting portion. The heat exchanger core includes a stacked heat exchange portion, a distribution portion, and a collection portion. The stacked heat exchange portion defines first fluid flow paths through which a first fluid flows in a first direction, and second fluid flow paths through which a second fluid flows in a third direction. The distribution portion is configured to distribute the first fluid to the first fluid flow paths. The collection portion is configured to collect the first fluid from the first fluid flow paths. The flow limiting portion is configured to suppress an inflow of the second fluid from the intake tank into the distribution portion and the collection portion. The flow limiting portion and the intake tank are provided as a single component.

An Integrated Hybrid Compact Fluid Heat Exchanger is disclosed. An example embodiment includes: a micro-channeled plate for a stream of a working fluid, the micro-channeled plate being diffusion bonded or brazed with a cover plate; and a fin assembly brazed, diffusion bonded, or welded to the micro-channeled plate. Other embodiments include a fan or blower coupled to the Integrated Hybrid Compact Fluid Heat Exchanger via air ducting or close coupling.

The invention relates to a plate (105) forming part of a heat exchanger and intended to delimit at least one channel (111) for circulation of a fluid. The plate (105) extends principally along an axis of longitudinal extent (A1). The plate (105) comprises at least one bottom (106), at least one first lateral raised edge (19a) which is inscribed within a first plane (P1) intersecting the axis of longitudinal extent (A1), and at least two openings (110) which are configured such that the fluid enters and exits the channel (111), respectively. The bottom (106) is provided with a rib (113) which extends longitudinally from the first lateral raised edge (109a). The rib (113) is positioned between the two openings (110). The rib (113) is of a sinuous configuration.