In a heat exchanger of the present invention, a release port for, in a case where a fluid flows into an internal space, releasing the fluid to an exterior is provided in a protection unit main body of each of protection units arranged on both outer sides of a heat exchange unit, and a protection unit fin plate of the protection unit has such strength that a coupling state between an outer surface of an outermost-layer partition plate and a bonding plate of the protection unit main body facing the outer surface is maintained even in a case where an inner pressure set as a design pressure for a part of the heat exchange unit constituting an outermost-layer flow passage adjacent to the protection unit is applied to the internal space of the protection unit main body of the protection unit.

A heat exchange system includes a first heat exchanger subassembly, a second heat exchanger subassembly, a first nozzle configured to spray fluid at the first heat exchanger subassembly, and a second nozzle configured to spray fluid at the second heat exchanger subassembly. The heat exchange system further includes memory storing controller-executable instructions and a controller configured to execute the instructions, which cause the controller to activate the first nozzle when an outdoor temperature is below a threshold temperature, and activate the first nozzle and the second nozzle when the outdoor temperature is above the threshold temperature.

A heat exchanger includes a heat exchanger body having a plurality of layer portions each having a plurality of flow paths, and having a configuration in which adjacent layer portions are joined to each other, an inflow header being configured that a fluid is introduced into the inflow header to flow into the plurality of flow paths, an outflow header being configured that a fluid flowing through the plurality of flow paths merges, a cover portion covering all joint portions of the adjacent layer portions or all joint portions of components of layer portions, the joint portions exposed on an outer surface of the heat exchanger body at a portion other than a portion where the inflow header and the outflow header are disposed, and a lead-out portion connected to the cover portion and forming an internal flow path communicating with a space between the cover portion and the heat exchanger body. The lead-out portion is configured to emit a fluid to a predetermined region set in advance.

A method of constructing a heat exchanger includes providing a base, and additively manufacturing a plurality of first walls substantially parallel and substantially vertical while being manufactured, wherein the plurality of first walls are spaced apart and attached to the base. The method also includes removing at least a portion of a build powder located between the plurality of first walls and attaching a parting sheet to the plurality of first walls. The method also includes additively manufacturing a plurality of second walls substantially parallel and substantially vertical while being manufactured and are spaced apart.

Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.

A heat exchanger having a stack of multiple plates which are parallel to one another and to a longitudinal direction, and stacked spaced apart from one another so as to define, between one another, a first series of passages for the flow of at least a first fluid in an overall flow direction parallel to the longitudinal direction, each passage being delimited by closure bars disposed between the plates. A filtering device is arranged in at least one passage of the first series, the filtering device extending for the one part between two adjacent plates defining the passage and for the other part between two of the closure bars delimiting the passage, the filtering device having a metal sheet material chosen from among a metal fabric, a nonwoven of metal fibres, a sintered metal powder or sintered metal fibres, a metal foam, or a microperforated plate.

A tube type heat exchanger includes a core includes multiple tubes, a header plate defining an array of apertures in which said tubes are received, and a coolant jacket arranged about said core. The header plate includes a body defining a central region and an edge region circumferential to said central region. The central region defines said array of apertures. The edge region includes a flange. The header plate is connected to the coolant jacket via first and second contact areas between the header plate and the coolant jacket. The flange is outboard of the coolant jacket. The first contact area is between the flange and the coolant jacket; and the second contact area is inboard of the first contact area.

A heat exchanger includes a base and a plurality of substantially parallel and substantially vertical walls spaced apart and integrally formed with the base via additive manufacturing. The heat exchanger also includes at least one parting sheet not integrally formed with the plurality of walls, but being attached to the plurality of walls, defining flow channels between the walls, the base, and the at least one parting sheet.

The invention relates to a plate and fin heat exchanger for bringing into a heat exchange relationship at least one refrigerant fluid and one calorigenic fluid, having a plurality of plates arranged parallel to a longitudinal direction so as to define a plurality of passages between said plates, at least one passage being formed between two adjacent plates and having at least one heat exchange structure equipped with at least one series of fins extending parallel to the longitudinal direction and following one another in a lateral direction, the fins, within the passage, defining channels for the flow of the fluids. According to the invention, at least one fin, over at least part of its surface, has a surface texturing in the form of striations arranged parallel to the longitudinal direction.

A heat exchanger core includes: a first passage; and a second passage extending along the first passage. At least one of the first passage or the second passage includes a plurality of narrowed portions in which an area of a passage cross section orthogonal to a passage extension direction is minimum, and a plurality of enlarged portions in which the area is maximum. The plurality of narrowed portions and the plurality of enlarged portions are alternately disposed in the passage extension direction.