Provided is a heat transport device that has high heat transport capability despite being small and lightweight. The heat transport device includes a flat plate-shaped base having a heat receiving surface that contacts a heating element, multiple flow paths that extend in the base so as to be approximately in parallel with the heat receiving surface, and working fluid sealed in the flow paths. The base is formed of a photocurable synthetic resin. The flow paths have multiple concave grooves formed on the inner circumferential walls of circular main flow paths. The grooves are disposed so as to be inclined with respect to the axial direction of the flow paths.

A pressure vessel comprises a pressure vessel body having a rectangular cross-sectional shape and formed to extend in the direction of flow of fluids, and the pressure vessel body includes a first flow channel which is formed in the longitudinal direction of the pressure vessel body and through which a first fluid is caused to flow, a second flow channel which is formed in the longitudinal direction of the pressure vessel body and through which a second fluid is caused to flow, a first-fluid inlet-outlet port which is provided in one longitudinal end surface of the pressure vessel body and connects with the first flow channel and through which the first fluid is caused to flow in or out, a second-fluid inlet-outlet port which is provided in the other longitudinal end surface of the pressure vessel body and connects with the second flow channel and through which the second fluid is caused to flow in or out, an opening portion which is provided in the one longitudinal end surface of the pressure vessel body and connects with the second flow channel, and a closing member which closes the opening portion in a demountable manner.

An annular heat exchanger with a longitudinal axis for a turbomachine, intended for example to be supported by an annular shell of a casing of the turbomachine, includes a one-piece annular part having a first fluidic circuit having at least one first conduit and at least one second conduit extending annularly and a second fluidic circuit having at least one first conduit and at least one second conduit extending annularly and arranged in a direction perpendicular to the longitudinal direction on either side of the first conduit and second conduit of the first circuit.

A cooling element and a method of manufacturing a cooling element. The cooling element includes a body having a surface adapted to receive a heat source, wherein the body is formed of extrusion profile having open ends. The cooling element further includes plugs attached to the open ends of the body to close the body, and a port for filling working fluid inside the closed body.

An annular heat exchanger for a turbomachine, is intended, for example, to be supported by an annular ferrule of a housing of the turbomachine, and includes an annular one-piece part having a first fluid circuit having at least one first conduit and at least one second conduit extending in an annular manner. The first conduit and the second conduit lead into a first cavity formed on a first circumferential end of said annular part, and the heat exchanger includes detachable sealing means which are applied to said first end and designed to allow a flow of fluid from the second conduit into the first cavity then into the first conduit.

A tank for a heat exchanger includes an extruded tank section having a generally constant extrusion profile extending in a longitudinal direction from a first tank end to a second tank end. A first planar end cap is joined to the extruded tank section near the first tank end, and a second planar end cap is joined to the extruded tank section near the second tank end. Together, the extruded tank section and first and second end caps can at least partially define an internal tank volume. The first and second planar end caps are both arranged at non-perpendicular angles to the longitudinal direction.

A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

A pulse loop heat exchanger, under vacuum, having a working fluid therein, comprising a heat exchanger body, a first continuity plate, and a second continuity plate is provided. The heat exchanger body, first continuity plate and second continuity plate comprise a plurality of channels and grooves on different elevated plane levels, respectfully. The different elevated plane levels result in increased output pressure gain in downward working fluid flow portions of the grooves, boosting thermo-fluidic transport oscillation driving forces throughout the heat exchanger. The second continuity plate comprises a second continuity plate attachment surface having a third elevated continuity channel. In addition to providing for fluid transport and boosting oscillation driving forces, the third elevated continuity channel also provides an internal reservoir. The heat exchanger is formed by an aluminum extrusion and stamping process and comprises three main steps, a providing step, a closing and welding step, and an insertion, vacuuming and closing step.

A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

Heat sinks having a mounting surface with a coefficient of thermal expansion matching that of silicon are disclosed. Heat pipes having layered composite or integral composite low coefficient of expansion heat sinks are disclosed that can be mounted directly to silicon semiconductor devices.