The present invention relates to a plate element (2) having a first heat transfer plate (10) and a second heat transfer plate (20), the first heat transfer plate (10) and the second heat transfer plate (20) being connected to each other to form the plate element (2). Each of the first heat transfer plate (10) and the second heat transfer plate (20) is formed of a plate body with a main part with a heat exchanging portion (40) formed with a surface pattern (45). The first heat transfer plate (10) is formed with a first set of openings (3a, 3d) in first extension sections (50) reaching out from the main part of the plate body, and the second heat transfer plate (20) is formed with a second set of openings (3b, 3c) in second extension sections (50) reaching out from the main part of the plate body. The first extension sections (50) of the first heat transfer plate (10) and the second extension sections (50) of the second heat transfer plate (20) are positioned such that the first set of openings (3a, 3d) and the second set of openings (3b, 3c) are not overlapping. The present invention further relates to a plate heat exchanger (1).

The present invention relates to a plate element (2) having a first heat transfer plate (10) and a second heat transfer plate (20), the first heat transfer plate (10) and the second heat transfer plate (20) being connected to each other to form the plate element (2). Each of the first heat transfer plate (10) and the second heat transfer plate (20) is formed of a plate body with a main part with a heat exchanging portion (40) formed with a surface pattern (45). The first heat transfer plate (10) is formed with a first set of openings (3a, 3d) in first extension sections (50) reaching out from the main part of the plate body, and the second heat transfer plate (20) is formed with a second set of openings (3b, 3c) in second extension sections (50) reaching out from the main part of the plate body. The first extension sections (50) of the first heat transfer plate (10) and the second extension sections (50) of the second heat transfer plate (20) are positioned such that the first set of openings (3a, 3d) and the second set of openings (3b, 3c) are not overlapping. The present invention further relates to a plate heat exchanger (1).

Systems, devices, and methods are disclosed for attaching two automotive components comprising different materials having different coefficients of expansion, comprising providing a flange around a perimeter of each of the components, wherein at least one component defines a plenum contiguous to the perimeter, providing corresponding inner faces of the flanges, providing a channel in at least one of the corresponding faces of the flanges, wherein the channel is coaxial to the perimeter, disposing a gasket in the channel, and surrounding the flanges with a locking ring, wherein the ring has an axial channel and a pin disposed perpendicular to the channel to secure a first end of the locking ring to a mating second end of the locking ring.

The present invention is directed to a finned heat exchanger comprising an inner annulus, an outer annulus, a plurality of fins, and an outer chamber. The plurality of fins extends radially outward from the outer surface of the inner annulus toward the inner surface of the outer annulus. The outer chamber is located between the inner annulus and the outer annulus. The plurality of fins is located within the outer chamber. A method of heating or cooling a fluid using the finned heat exchanger and a method of forming the finned heat exchanger are also disclosed.

A hierarchical heat exchanger manifold includes: first and second fluid passages respectively open to an inlet and an outlet in a first level of the heat exchanger manifold; a plurality of first and second fluid passages in a second level of the heat exchanger manifold; and a plurality of first and second fluid passages in a third level of the heat exchanger manifold. A number of the first fluid passages in the third level is greater than a number of the first fluid passages in the second level. Each of the first fluid passages in the second level is in fluid communication with the inlet and at least one of the first fluid passages in the third level, and each of the second fluid passages in the second level is in fluid communication with the outlet and at least one of the second fluid passages in the third level.

An aluminum alloy fin material has a composition, in % by mass, of the following: Zr: 0.05 to 0.25%, Mn: 1.3 to 1.8%, Si: 0.7 to 1.3%, Fe: 0.10 to 0.35%, and Zn: 1.2 to 3.0%, the remainder being Al and inevitable impurities. The aluminum alloy fin material has a solidus temperature of 615° C. or higher, a tensile strength after brazing of 135 MPa or higher, a pitting potential after brazing in the range of −900 to −780 mV, and an average crystal grain diameter in a rolled surface after brazing in the range of 200 μm to 1,000 μm.

In various embodiments, a metal alloy resistant to aqueous corrosion consists essentially of or consists of niobium with additions of tungsten, molybdenum, and one or both of ruthenium and palladium.

Provided herein are new aluminum alloy materials which are useful in replacing copper in a heat exchanger. The aluminum alloy materials are also useful in manufacturing components of heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems for indoor and outdoor units. The alloys are well-suited for tubing in a heat exchanger. The alloys display high strength and good corrosion resistance. Also provided herein are methods for making the aluminum alloy materials.

An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.

Technologies provide a heat pipe having a controlled torque resistance. The techniques disclosed herein provide a heat pipe that can function as a coupling device and as a thermal interface between two moving components of a device without the need of a mechanical hinge. In some configurations, a heat pipe comprises a housing having an outer surface and having an inner surface defining a cavity. The heat pipe can also comprise one or more components for transferring heat from a first region to a second region. In addition, the heat pipe is configured to provide a predetermined torque resistance about a first axis that is perpendicular to a longitudinal axis of the heat pipe. Components, such as a heat source and a heat sink, that are attached to the heat pipe can be hingeably coupled with a predetermined torque resistance without requiring a hinge and a separate thermal interface device.