A plate fin heat exchanger is disclosed. The heat exchanger includes a plurality of plates defining a set of hot fluid passages between adjacent plates of the plurality of plates and a set of cold fluid passages between adjacent plates of the plurality of plates. A hot fluid inlet and outlet are located at a first face of the heat exchanger. A barrier is located between adjacent plates defining the hot fluid passages. The barrier extends between the adjacent plates and extends from the first face of the heat exchanger at a location between the hot fluid inlet and the hot fluid outlet in a direction perpendicular to the first face, and defines a first pass of hot fluid passages on a first side of the barrier and a second pass of hot fluid passages on a second side of the barrier.

Provided is a fluid flow-path device with which it is possible to easily perform maintenance that is an operation to remove a foreign substance, which adheres to a member for preventing passage of the foreign material, from the member. This fluid flow-path device is provided with a distribution header including a partition member and a header body disposed in a flow-path formation body. The partition member partitions a distribution space formed by the distribution header into an upstream-side space that communicates with a supply opening provided in the header body, and a downstream-side space that communicates with each of a plurality of flow paths formed in the flow-path formation body. The partition member includes a region that prevents a foreign substance included in a fluid of interest from flowing from the upstream-side space to the downstream-side space while allowing the fluid of interest to flow from the upstream-side space to the downstream-side space. The header body has formed therein an introduction opening that allows a washing fluid to flow into the downstream-side space, and a discharge opening that allows the washing fluid to be discharged from the upstream-side space.

An apparatus with a first pathway configured to circulate a first substance and a second pathway configured to circulate a second substance between a plurality of plates. The first pathway includes: a plurality of plates with a plurality of flow channels; a first inlet configured to receive the first substance and provide the first substance to the first plurality of flow channels; and a first outlet configured to receive the first substance from the first plurality of flow channels. The second pathway includes: a second inlet configured to receive the second substance; and a second outlet configured to output the second substance.

An additively manufactured heat exchanger configured to transfer heat between a first fluid and a second fluid includes a first channel with a first wall configured to port flow of a first fluid and a second channel with a second wall configured to port flow of a second fluid. The heat exchanger also includes a barrier channel containing unprocessed build powder provided by the additive manufacturing process and is located between the first wall and the second wall. The barrier channel is configured to prevent mixing of the first fluid and the second fluid when one of the first wall and the second wall ruptures.

A heat exchanger includes a stack of flow conduits. Each flow conduit is configured to conduct a fluid. Parting sheets separate adjacent flow conduits in the stack, providing heat transfer between them. Each of the flow conduits includes vanes extending along a vane path and between top and bottom parting sheets. The vanes are separated from one another, thereby creating flow channels. Each flow conduit also includes a plurality of flow modifiers, each adjacent to a corresponding leading edge of a corresponding vane, so as to cause a disrupted portion of a fluid flow to be incident upon the corresponding leading edge. Each of the flow modifiers includes an aerodynamic portion and a gap portion. The aerodynamic portion extends from at least one of the top and bottom parting sheets. The aerodynamic portion does not connect the top and bottom parting sheets due to the gap portion.

A heat exchanger assembly for an aircraft with an environmental control system includes first and second heat exchangers, a closure bar, and a drain manifold. The first heat exchanger is in fluid communication with a source of bleed air from the aircraft. The second heat exchanger has a second hot air circuit passing through the second heat exchanger and is disposed adjacent to and in fluid communication with the first heat exchanger. The closure bar is disposed between the first and second heat exchangers such that the closure bar prevents fluid communication across the closure bar between the first and second heat exchangers. The drain manifold is mounted to a sidewall of the heat exchanger assembly. A channel of the drain manifold is in fluid communication with a surface of the closure bar.

A radiator including a tank, an inlet port extending from the tank through which coolant is introduced into the tank, and a static fluid generator at a wall of the tank opposite to the inlet port. The static fluid generator is configured to generate a static fluid dome from coolant flowing into contact with the static fluid generator from the inlet port. Subsequent coolant flowing through the inlet port deflects off of the static fluid dome and is diverted throughout the tank and to a core of the radiator.

A heat exchanger for a transmission unit of an aircraft is described that comprises: a first module defining a first feed path for a first fluid to be cooled; a second module defining a second feed path for a second cooling fluid; the first and second feed paths being thermally coupled to each other; each second module comprising: at least one cell formed by an inlet for a second cooling fluid; an outlet for the second cooling fluid, which is arrange on the opposite side to the inlet along a first direction; a first wall thermally coupled to the first path; a pair of second walls; and a plurality of fins projecting in a cantilever fashion from the first wall. The heat exchanger further comprises at least a first row of fins, which lie on a plane orthogonal to the first direction, the fins of the first row extending at progressively increasing distances from one of the second walls along a second direction orthogonal to the first direction.

A heat exchanger includes a body that includes an at least two opposing surfaces and the at least two opposing surfaces are a trapezoidal. The body of the heat exchanger also includes, an area of cross sectional flow channels through the body. The area of cross-sectional flow channels in a direction perpendicular to the bases of the trapezoid increase or decrease between the two bases.

A drying apparatus includes a compartment for containing objects to be dried, a closed-loop air pathway and a regeneration heat exchanger. The closed-loop air pathway includes a cooling element and a heating element, and is configured to extract from the compartment air that includes moisture in the form of vapor, to evacuate heat energy from the extracted air to an external fluid flow by cooling using the cooling element so as to remove at least some of the moisture from the air, to reheat the air using the heating element, and to re-introduce the reheated air into the compartment. The regeneration heat exchanger is inserted in the closed-loop air pathway and is configured to transfer heat from the air extracted from the compartment to the air exiting the cooling element in the closed-loop air pathway.