Abstract: A heat exchanger includes first and second plates between which a fluid flow passage is defined, through-holes defining inlet and outlet ports, and through fittings having first and second segments. Each segment includes a tube portion extending through one of the holes and a flange portion located inside the fluid flow passage. The flange portion of each segment has opposed first and second surfaces, the first surface joined to the inner surface of one of the plates in a fluid-tight manner. The second surfaces of both segments face each other, and at least second surface has one or more channels providing fluid flow from the hollow interior to the fluid flow passage. The second surfaces of the segments are in contact or closely apart from one another, the flange portions of the first and second segments providing support for the first and second plates in the area surrounding the ports.

Abstract: A heat exchanger for cooling a heat-generating component includes first and second plates, each having a core layer of a first metal and an inner clad layer of a lower melting second metal, which is inert to the working fluid contained in a fluid chamber of the heat exchanger. The outer peripheral sealing surfaces of the first and second plates are joined by welding, wherein the weld joint is fluidly isolated from the fluid chamber by a layer of the second metal in an area adjacent to the weld joint. In some embodiments, the heat exchanger includes liquid flow passages and primary and secondary gas flow passages, each secondary passage providing communication between primary gas flow passages. The gas and liquid flow passages may be defined by a wick material having hydrophilic areas and non-wicking areas of reduced thickness. A method of manufacturing is also disclosed.

Abstract: A device and method for alignment of parts for welding, having a bottom welding fixture and a top welding fixture. The bottom welding fixture has a plurality of fixed locating pins for positioning of parts to be welded and limiting movement of the parts in a first axis and a perpendicular second axis. At least pair of alignment block assemblies to actuate movement of the parts to be welded in the first and second axes. The alignment block assembly having an alignment block moveable from a first position to a second position for contacting and aligning the parts. An actuator coupled to the top welding or bottom welding fixture to actuate movement of the alignment block from the first position to the second position upon engagement of the top welding fixture to the bottom welding fixture.

Abstract: A heat exchanger for cooling a heat-generating component includes first and second plates, each having a core layer of a first metal and an inner clad layer of a lower melting second metal, which is inert to the working fluid contained in a fluid chamber of the heat exchanger. The outer peripheral sealing surfaces of the first and second plates are joined by welding, wherein the weld joint is fluidly isolated from the fluid chamber by a layer of the second metal in an area adjacent to the weld joint. In some embodiments, the heat exchanger includes liquid flow passages and primary and secondary gas flow passages, each secondary passage providing communication between primary gas flow passages. The gas and liquid flow passages may be defined by a wick material having hydrophilic areas and non-wicking areas of reduced thickness. A method of manufacturing is also disclosed.

Abstract: A device and method for alignment of parts for welding, having a bottom welding fixture and a top welding fixture. The bottom welding fixture has a plurality of fixed locating pins for positioning of parts to be welded and limiting movement of the parts in a first axis and a perpendicular second axis. At least pair of alignment block assemblies to actuate movement of the parts to be welded in the first and second axes. The alignment block assembly having an alignment block moveable from a first position to a second position for contacting and aligning the parts. An actuator coupled to the top welding or bottom welding fixture to actuate movement of the alignment block from the first position to the second position upon engagement of the top welding fixture to the bottom welding fixture.