Hydraulic fluid coolers suitable for cooling hydraulic fluid in a closed loop hydraulic circuit and capable of withstanding high hydraulic fluid pressures may include at least one heat exchanger. The at least one heat exchanger may include a header assembly having a header inlet conduit, a header outlet conduit and a fan motor outlet conduit. A plurality of primary cooling conduits may be disposed in fluid communication with and extend between the header inlet conduit and the header outlet conduit. A plurality of secondary cooling conduits may be disposed in fluid communication with and extend between the header inlet conduit and the fan motor outlet conduit. A cooling fan may be disposed adjacent to the plurality of primary cooling conduits and the plurality of secondary cooling conduits. A hydraulically-actuated cooling fan motor may drivingly engage the cooling fan. The cooling fan motor may be disposed in fluid communication with the fan motor outlet conduit of the header assembly.

A fin has a plurality of insertion holes in an elliptical shape through which a heat transfer tube is inserted and contains stainless steel as a material. The plurality of insertion holes are disposed as being aligned in a single row in a first direction. The fin has a first slit extending from a first end portion toward a second end portion and a second slit extending from the second end portion toward the first end portion. The second slit has a first edge portion where a cut and raised wall portion is disposed and a second edge portion where no cut and raised wall portion is disposed.

An outdoor heat exchanger includes a plurality of flat multi-hole tubes, a return header, a plurality of heat transfer fins, and a partition including a concave-convex portion on the leeward side. A space inside the return header to which the flat multi-hole tubes are connected is formed so as to cause a larger amount of refrigerant to flow on the upstream side than on the downstream side in an airflow direction.

An apparatus and a method are provided for a modular intercooler block that may be fabricated by way of direct metal printing and assembled to form larger intercoolers. The modular intercooler block comprises cooling fins that are spaced between first and second core headers to allow passage of an airstream. Countersunk holes are arranged on the first and second core headers and configured to receive grommets when the first or second core header is fastened to another core header comprising similarly arranged countersunk holes. A core tube extends along an undulating path from each countersunk hole in the first core header, through the multiplicity of cooling fins, to a similar countersunk hole in the second core header. The core tubes may include thin copper walls and spiraled inner passages to enhance heat transfer to the airstream passing through the multiplicity of cooling fins.

A cooling system of the present disclosure includes: a coolant tank storing a coolant removing heat from a heating element in a closed space as an inner space; a plurality of heat pipes that are arranged to extend from the coolant tank toward the outside of the coolant tank and respectively having passages allowing the coolant as a working fluid to be movable therethrough; and a blower fan blowing air to the plurality of heat pipes from the outside of the coolant tank in a direction in which the heat pipes are arranged, wherein a cross-sectional shape orthogonal to the extension direction of each heat pipe is a flat plate shape having a leading edge on an upstream side of a blowing direction of the blower fan and a trailing edge on a downstream side thereof with the blowing direction as a longitudinal direction.

The invention relates to a heat exchanger assembly with at least one multi-pass heat exchanger, comprising a first distributor (1) with a first connection part (1a) for connecting to a fluid line (9), a second distributor (2) with a second connection part (2a) for connecting to a fluid line (9), and at least one first deflection distributor (4), as well as a plurality of tube lines (5) through which a fluid, in particular water, can flow, wherein the first distributor (1) and the second distributor (2) are arranged at one end (A) of the heat exchanger assembly, the deflection distributor (4) is arranged at the opposite end (B) and the tube lines (5) extend from the one end (A) to the opposite end (B), and wherein the first connection part (1a) is arranged at a lowest point (T) or at least near to the lowest point (T) of the first distributor (1) and the second connection piece (2a) is arranged at a lowest point (T) or at least near to the lowest point (T) of the second distributor (2). In order to allow for the heat exchanger assembly to be quickly filled with the fluid and quickly emptied, a third connection part (3) is arranged on the first distributor (1) and/or on the second distributor (2) at a highest point (H) or at least near to the highest point (H) of the respective distributor (1 or 2), and at least one ventilation opening (10) is provided at a highest point (T) or at least near to the highest point (T) of the deflection distributor (4) for pressure equalisation with the environment.

A heat exchanger includes a plurality of conduits that extend between a first endplate and a second endplate. A first manifold is coupled to the first endplate to couple the first manifold to first ends of the plurality of conduits. An inlet is coupled to the first manifold to direct a first fluid into the first manifold and at least one baffle is disposed within the first manifold to form a first cavity and a second cavity. The at least one baffle of the first manifold is configured to direct the first fluid from the inlet to a first conduit of the plurality of conduits. A second manifold is coupled to the second endplate to couple the second manifold to second ends of the plurality of conduits and at least one baffle is disposed within the second manifold to form a fourth cavity and a fifth cavity.

A liquid cooling radiator with impurities filtering includes a radiation fin module, a top cover and a bottom cover respectively enclosed at two opposite ends of the radiation fin module, liquid cooling heat pipes tightly inserted through the radiation fin module in communication between an enclosed top chamber in the top cover and an enclosed bottom chamber in the bottom cover for coolant circulation, and wire gauge filters individually mounted in the liquid cooling heat pipes for removing impurities from the circulating coolant and slowing down the flowing speed of the circulating coolant.

An infrared camouflage device and a vehicle including such a device which includes an array of parallel pipes carrying a heat-transfer fluid for changing the thermal signature of a vehicle. This device is characterized in that it includes an inlet manifold, an intermediary manifold, a first series of first pipes connecting the inlet manifold to the intermediary manifold, a second series of second pipes connecting the intermediary manifold to an outlet manifold, each first pipe being located in the vicinity of a second pipe so as to form, at the device, an alternation of first and second parallel pipes, the inlet manifold and the outlet manifold being in the vicinity of each other.

A heat exchanger includes a plurality of principal heat exchange sections and auxiliary heat exchange sections. Each of the auxiliary heat exchange sections is in series connection to a corresponding one of the principal heat exchange sections. Tube number ratios of the principal heat exchange sections are obtained by dividing the number of the flat tubes constituting each of the principal heat exchange sections by the number of the flat tubes constituting a corresponding one of the auxiliary heat exchange sections. Of the principal heat exchange sections, the first principal heat exchange section, which is the lowermost one, has the smallest tube number ratio. Consequently, discharge of liquid refrigerant from a lower portion of the first principal heat exchange section is accelerated during defrosting, thereby shortening the time required for defrosting.