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.

In a heat exchanger of the present invention, a release port for, in a case where a fluid flows into an internal space, releasing the fluid to an exterior is provided in a protection unit main body of each of protection units arranged on both outer sides of a heat exchange unit, and a protection unit fin plate of the protection unit has such strength that a coupling state between an outer surface of an outermost-layer partition plate and a bonding plate of the protection unit main body facing the outer surface is maintained even in a case where an inner pressure set as a design pressure for a part of the heat exchange unit constituting an outermost-layer flow passage adjacent to the protection unit is applied to the internal space of the protection unit main body of the protection unit.

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 includes at least one of a hollow vascular structure and a solid vascular structure configured to communicate fluid through the vascular engineered lattice structure.

A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.

A core-in-shell heat exchanger, a method of fabricating the core-in-shell heat exchanger, and a method of exchanging heat in a core-in-shell heat exchanger disposed on a slosh-inducing moving platform are described. The method of exchanging heat includes introducing a shell-side fluid into a shell of the core-in-shell heat exchanger and introducing a fluid to be cooled into each of one or more cores of the core-in-shell heat exchanger, the one or more cores being arranged along an axial length of the shell with a plurality of baffles disposed on either side of the one or more cores along the axial length of the shell to reduce slosh of the shell-side fluid. The method also includes draining excess shell-side fluid using a plurality of drains, at least two of the plurality of drains being disposed on opposite sides of one of the plurality of baffles.

A core-in-shell heat exchanger, a method of fabricating the core-in-shell heat exchanger, and a method of exchanging heat in a core-in-shell heat exchanger disposed on a slosh-inducing moving platform are described. The method of exchanging heat includes introducing a shell-side fluid into a shell of the core-in-shell heat exchanger and introducing a fluid to be cooled into each of one or more cores of the core-in-shell heat exchanger, the one or more cores being arranged along an axial length of the shell with a plurality of baffles disposed on either side of the one or more cores along the axial length of the shell to reduce slosh of the shell-side fluid. The method also includes draining excess shell-side fluid using a plurality of drains, at least two of the plurality of drains being disposed on opposite sides of one of the plurality of baffles.

A modular plate and shell heat exchanger in which welded pairs of heat transfer plates are tandemly spaced and coupled in parallel between an inlet and outlet conduit to form a heat transfer assembly. The heat transfer assembly is placed in the shell in order to transfer heat from a secondary to a primary fluid. Modules of one or more of the heat transfer plates are removably connected using gaskets at the inlet and outlet conduits which are connected to a primary fluid inlet and a primary fluid outlet nozzle. The heat transfer assembly is supported by a structure which rests on an internal track which is attached to the shell and facilitates removal of the heat transfer plates. The modular plate and shell heat exchanger has a removable head integral to the shell for removal of the heat transfer assembly for inspection, maintenance and replacement.

A repair kit and associated method for repairing an automotive coolant pipe for fluid-conducting within an engine block of an engine includes at least a repair stent with a flared end, sealant and instructions for performing the method. The method includes draining coolant from the engine, removing the water pump from the engine without removing the timing chain cover of the engine, inserting the repair stent including a sealant through the coolant passage, wherein the coolant passage extends through the timing chain cover into the engine, re-assembling the water pump to the engine and adding coolant to the engine.

A method and arrangement for repairing a leaking point in a plate pack of a plate heat exchanger (1), in which a space between adjacent plate pairs of the plate pack (4), with which the leaking point is in connection, is closed by arranging a separate strip (9) or sealing tape (10) into the space between the plate pairs on the whole length of the outer perimeter of the plate pack.

A method for repairing an automotive cooling system within an engine block of an engine includes installing at least a hollow repair stent and sealant. The repair stent may have a continuous cross-section or may be a hollow semi-cylinder defining a gap. The method includes draining coolant from the engine, removing the water pump from the engine without removing the timing chain cover of the engine, inserting the hollow repair stent including the sealant through the coolant passage, wherein the coolant passage extends through the timing chain cover into the engine, re-assembling the water pump to the engine and adding coolant to the engine so that the hollow repair stent remains in the engine.