A thermal acoustic insulation structure including: a metal internal sheet having an exposed surface configured to be exposed to a hot gas, an external sheet and an insulation sandwiched between the internal and external sheets; a bar secured to the metal internal sheet and extending through at least a portion of the insulation; a bracket connected to the external sheet or to a support plate extending from the external sheet, wherein the bracket includes an opening configured to receive an end of the bar; a fastener securing the end of the bar to the bracket, and an insulating washer separating the bracket from the bar and the fastener.

A component according to an exemplary aspect of the present disclosure includes, among other things a wall and a vascular engineered lattice structure formed inside of the wall. The vascular engineered lattice structure defines a hollow vascular structure configured to communicate a fluid through the vascular engineered lattice structure. The vascular engineered lattice structure has at least one inlet hole and at least one outlet hole that communicates the fluid into and out of the hollow vascular structure.

A method of rebuilding a salvaged EGR coolers is disclosed in which the existing heat exchanger elements are removed from the salvaged stock EGR cooler housing and replaced with a heat exchanger element made from a pair of heat exchanger tube sub-assemblies. Each of the heat exchanger tube sub-assemblies includes an end plate with a selected number of attached tubes and a selected number of bores, which are adapted to receive the ends of the tubes attached to the other tube sub-assembly. The tube sub-assemblies are mated together with the free ends of the tubes received into the bores of the opposite end plate. Exhaust fittings are then welded to the ends of the housing.

A heat exchanger includes a pair of end plates closing opposite ends of a cylindrical core case, and a plurality of heat exchange tubes each supported at opposite end portions by the end plates. The end plates have support holes, and opposite ends of the tubes are inserted into corresponding support holes in the end plates. Each of the tubes is formed by bending a plate material so that opposite side edge portions of the bent plate material are superimposed on each other, one of the superimposed side edge portions, located inward of the other of the superimposed side edge portions, forming an inner plate portion, the other of the superimposed side edge portions forming an outer plate portion, and then welding a weld bead through the thickness of one of the inner and outer plate portions to fuse to the other plate portion.

A heat exchanger manufacturing method comprising: a welding step of disposing a first weld bead through a thickness of one of the inner and outer plate portions and fusing the first weld bead to other of the inner and outer plate portions for joining together the first and second case halves, to thereby provide the heat exchange tube; and a temporary tacking step of providing a temporarily-assembled end plate/tube unit by temporarily tacking the heat exchange tube to each of the end plates by means of a second weld bead and filling, with the second weld bead, a gap of a generally triangular shape defined, at each of the opposite end portions of the heat exchange tube, by an outer surface of the inner plate portion, an end surface of the outer plate portion and a corresponding one of the end plates.

A heat exchanger includes a fluid circuit including a fluid inlet manifold, a fluid outlet manifold, and fluid heat exchange channels fluidly connected between the fluid inlet manifold and the fluid outlet manifold. Each channel has an interior, and walls with an inside surface. A method of repairing the heat exchanger includes pumping an epoxy varnish into the interior of at least one of the heat exchange channels; filling in at least one of a) one or more cracks in the walls of the at least one channel, b) one or more apertures in the walls of the at least one channel, or c) one or more spaces between the at least one channel and another component of the heat exchanger with the epoxy varnish; and heating the at least one channel to a temperature in an approved predetermined epoxy varnish temperature range.

A method and apparatus for the liquefaction of natural gas or conversion of other gases to liquids that uses nanosecond or femtosecond pulse laser machined structures on surfaces of heat exchangers. The heat exchanger has metal plate and plate fin surfaces with increased surface area to volume ratio from the nanosecond or femtosecond pulse laser machined structures on its surfaces. Heat transfer and cooling are accelerated by exposing the gas to nanosecond or femtosecond pulse laser nanomachining structures. Fluid refrigerant flows through the structures in the heat exchanger metal plate and plate fins, and exchanges heat with refrigerant flowing through the structures.

A system and method of altering the air conditioning system in an aircraft so that the air conditioning system is electrically powered rather than engine powered. The aircraft is rid of the air conditioning components that are dedicated to the engine powered system. A new electric compressor, evaporator and condenser blower assembly are then installed. Heat exchanger units are installed in the areas of the aircraft that are to be cooled. The new air conditioning system has two circulatory loops. In a refrigerant loop, refrigerant is circulated between the electric compressor, evaporator and condenser. This cools the evaporator. The evaporator is then used to cool circulating liquid coolant. The coolant is circulated to the heat exchange units.

Systems, methods and devices for converting existing ice resurfacers to reuse collected ice and snow for further ice resurfacing. The systems, methods and devices allows for efficient, clean and environmental friendly ice resurfacing. The conversion includes the modification and/or replacement of the snow dump tank, main water tank and the installing of heating and power systems. This invention is designed for present machines and for incorporation into future manufacturing of ice resurfacers. While reducing the requirement for large amounts of fresh water, the surface water being pre-heated by two commercial hot water tanks, it also reduces the amount of labour and costs associated with ice resurfacing.

A system and a method for promoting improved air flow through a cooling tower and reduced inner air pressure losses caused by rain in the rain zone of a cooling tower. Aerodynamic modules are mounted on the lower edge of the cooling tower shell in order to deflect the downward-flowing air about the lower edge of the tower shell and into the rain zone. The aerodynamic modules can be modularly mounted, can be replaced, and do not affect the statics of the tower shell. Aerodynamic modules can also be built on the base area to deflect the incoming air over any obstacles. Troughs or dripping elements can also promote flow by reducing the rain falling in an outer area.