A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.

A heat exchange module, a heat exchanger and a method for additively manufacturing the heat exchanger are provided. The heat exchanger includes a plurality of stacked heat exchange modules defining a flow passageway. Each heat exchange module defining a substantially curved closed geometry defining a central axis that extends along the axial direction. Each heat exchange module includes a first heat exchanging fluid inlet, a first heat exchanging fluid outlet and a plurality of heat exchange tubes fluidly coupling the first heat exchanging fluid inlet and the first heat exchanging fluid outlet. The plurality of heat exchange tubes defining a plurality of first heat exchanging fluid flow passages of equal length and a plurality of second heat exchanging fluid flow passages of equal hydraulic diameter.

A heat exchanger is disclosed, having a vessel for containing a refrigerant, the vessel having a chamber bounded by a surface of a vessel wall, the vessel including an inlet and an outlet for transport of a refrigerant into and out of the chamber. At least one tube portion is inside the chamber, to enable fluid communication into and/or out of the tube portion through a first orifice and a second orifice. This at least one tube portion has an average diameter. The chamber has a space for the refrigerant, with the space having a volume, and the at least one tube portion has an outer surface in contact with the space for the refrigerant, this surface having an area. The volume divided by a product of the area and the average diameter is smaller than or equal to a constant.

A flow control device includes a body and a flow control element. The body includes a thermal conditioning passage disposed within a side wall, disconnected from a flow passage, and extending between a first conditioning port and a second conditioning port. The thermal conditioning passage has a first portion extending circumferentially around a first circumferential portion of the interior surface of the flow passage, a second portion axially spaced from the first portion by a first axial U-shaped bend and extending circumferentially around the first circumferential portion and a second circumferential portion of the interior surface of the flow passage to form a first circumferential U-shaped bend, and a third portion axially spaced from the second portion by a second axial U-shaped bend and extending circumferentially around the second circumferential portion of the interior surface of the flow passage. The thermal conditioning passage further including a radial passage connecting a central portion of the first circumferential U-shaped bend with one of the first and second conditioning ports.

A heat exchanger including a plurality of tubes, a header, and a plurality of flow voids. The plurality of tubes extends in a first direction through which a first fluid is configured to flow. Each of the plurality of tubes have waves that repeat at regular intervals along the first flow direction and are spaced from one another vertically and laterally in the second direction. The header extends in the first direction and is attached to each of the plurality of tubes. The header is configured to convey the first fluid to each of the plurality of tubes. The plurality of flow voids are formed between the plurality of tubes. The plurality of flow voids extend in a second direction through which a second fluid is configured to flow such that the second fluid is in thermal contact with the plurality of tubes.

A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

A heat exchanger has arcuate inlet and outlet manifolds and a plurality of tube banks, each tube bank coupling one of the inlet manifold outlets to an associated one of the outlet manifold inlets. Each tube bank partially nests with one or more others of the tube banks and has: a first header coupled to the associated inlet manifold outlet and the associated the outlet manifold inlet; a second header; and a plurality of tube bundles each having a first end coupled to the associated first header and a second end coupled to the associated second header. A flowpath from the each inlet manifold outlet passes sequentially through flowpath legs formed by each of the tube bundles in the associated tube bank to exit the tube bank to the associated outlet manifold inlet.

A heat exchanger including a plurality of tubes, a header, and a plurality of flow voids. The plurality of tubes extends in a first direction through which a first fluid is configured to flow. Each of the plurality of tubes have waves that repeat at regular intervals along the first flow direction and are spaced from one another vertically and laterally in the second direction. The header extends in the first direction and is attached to each of the plurality of tubes. The header is configured to convey the first fluid to each of the plurality of tubes. The plurality of flow voids are formed between the plurality of tubes. The plurality of flow voids extend in a second direction through which a second fluid is configured to flow such that the second fluid is in thermal contact with the plurality of tubes.

A vessel for containing a refrigerant comprising an inner wall and an outer wall arranged concentrically and having an inner space bounded by the inner wall and outer wall, an inlet and an outlet for transport of refrigerant into and out of the inner space; a tube inside the inner space arranged turn around the inner wall; an input tube fluidly connected to the inner space and arranged to allow flow of the refrigerant through the input tube into the inner space; an output tube connected to the inner space and arranged to allow flow of the refrigerant out of the inner space into the output tube; a compressor arranged to receive the refrigerant from the output tube and to compress the refrigerant; and a condenser arranged to receive the compressed refrigerant fluid from the compressor, to condense the refrigerant, and to forward the compressed refrigerant into the input tube.

A heat exchanger is provided that can include furcating unit cells coupled with each other. Each of the unit cells can be elongated along an axis and include a sidewall that defines annular ring openings on opposite ends of the unit cell along the axis. The sidewall also can define undulating annular rings between the annular ring openings and axially separated from each other along the axis. The sidewall can further define angled openings into the unit cell both above and below each of the undulating annular rings. At least a first opening of the annular ring openings and the angled openings can be configured to be an inlet to receive a first fluid into the unit cell and at least a second opening of the annular ring openings and the angled openings configured to be an outlet through which the first fluid exits the unit cell.