A heat exchanger assembly has a top par and a bottom part joined to the top part. At least one of the top and bottom parts defines a recess. The top and bottom parts define therebetween a passage formed in part by the recess. The passage has a first portion of the passage extending along a first side of the heat exchanger assembly; a second portion of the passage extending along a second side of the heat exchanger assembly; an inlet fluidly communicating with the first portion of the passage near a first end of the passage; and an outlet fluidly communicating with the second portion of the passage near a second end of the passage. Fluid enters the passage via the inlet, then flows in the first portion of the passage, then flows in the second portion of the passage, and then exits the passage via the outlet.

A radiator assembly in which numerous fins of a cooling element extending between two coolant channels of the cooling element are divided into at least two different cooling zone, a ventilator of the radiator assembly at least partially covers a first cooling zone of the at least two different cooling zones with respect to a direction extending from the ventilator module toward the cooling element, and a gap width of a gap between two adjacent fins in the first cooling zone is greater than that in a second cooling zone of the at least two different cooling zones.

A cooling device includes a number of cooling tubes arranged in parallel such that a first cooling fluid and a second cooling fluid can flow in the cooling tubes. A tank communicates with the cooling tubes to allow the first cooling fluid or the second cooling fluid to flow through the cooling tubes. A diaphragm is located inside the tank to separate the tank into a first space allowing the first cooling fluid to flow therein and a second space allowing the second cooling fluid to flow therein. The diaphragm is coupled to the tank to be rectilinearly movable in a direction of an arrangement of the plurality of cooling tubes.

A modular system for heat exchange between fluids includes two end plates. At least one end plate is configured with inlets and outlets for fluids. The modular system includes a number of heat exchanger elements and a number of guiding elements. Each heat exchanger element includes a folded sheet material including a plurality of slits extending in a longitudinal direction of the folded sheet material, which longitudinal extending slits form the fluids flow paths. The folded sheet material is cast in one piece in an outer casing. A central opening of the outer casing covers an outer circumference of the folded sheet material, exposing a front side and a back side of the folded sheet material where two through holes, forming the inlets and outlets for each fluid, are provided on opposite sides of the central opening of the outer casing. Each guiding element includes two inlets and two outlets for fluids, and a bead or edge, provided on one side, forming an enclosure around the inlet and outlet for a first fluid, and a bead or edge on an opposite side, forming an enclosure around the inlet and outlet for a second fluid. Heat exchanger elements and guiding elements are arranged successively following each other. The heat exchanger elements are arranged that two adjacent heat exchanger elements on sides facing each other carry the same fluid.

A brazing sheet may be used for brazing under an atmosphere of an inert gas without flux. The brazing sheet may include at least three layers. The at least three layers may include a core material, a brazing material layer, and an intermediate layer. The at least three layers may be cladded by an outermost layer of the brazing material layer. The intermediate layer may be disposed on a face of the core material. The core material may be composed of a first aluminum alloy including at least one of (i) 0.20 weight % to 1.0 weight % of Cu, (ii) 0.8 weight % to 1.8 weight % of Mn, and (iii) 0.25 weight % to 1.5 weight % of Mg. The intermediate layer may be composed of a second aluminum alloy including 0.20 weight % or less of each of Si and Fe and 0.10 weight % or less of each of Cu, Mn, and Cr.

A heat exchanger includes a core and a header tank. The header tank includes a partition, a first inlet pipe, and a second inlet pipe. The partition divides an inside passage of the header tank into a first tank and a second tank. The first inlet pipe introduces a first fluid into the first tank. The second inlet pipe introduces a second fluid into the second tank. The first inlet pipe is inclined at a predetermined angle except a right angle relative to an outer surface of the header tank such that a flow direction of the first fluid flowing from the first inlet pipe to the first tank includes a component in a predetermined direction from a first end of the first tank provided with the partition to a second end of the first tank opposite to the first end.

An embodiment integrated radiator includes an upper section including an upper tube, a first upper tank, a first upper header, a second upper tank, and a second upper header, wherein the upper tube is configured to pass an upper-side coolant therethrough, a lower section including a lower tube, a first lower tank, a first lower header, a second lower tank, and a second lower header, wherein the lower tube is configured to pass a lower-side coolant therethrough, and a middle section disposed between the upper section and the lower section, the middle section including a middle tube, a first middle tank, a first middle header, a second middle tank, and a second middle header, wherein the middle tube is configured to receive a cooling medium therein.

A heat exchanger assembly has: a front portion; a middle portion rearward of the front portion; a rear portion rearward of the middle portion, at least one of the front and rear portions being curved from the middle portion, the at least one of the front and rear portions extending below the middle portion; a top part, the top part defining at least one top recess; and a bottom part disposed below the top part and being joined to the top part, the bottom part defining at least one bottom recess. The top and bottom parts define therebetween a passage formed in part by the at least one top recess and the at least one bottom recess. The passage has an inlet and an outlet. A snowmobile having the heat exchanger assembly is also disclosed.

A cooling apparatus (1) for cooling a fluid by means of surface water comprises a plurality of tubes (10) for containing and transporting the fluid to be cooled in their interior, the tubes (10) being intended to be at least partially exposed to the surface water during operation of the cooling apparatus (1). Furthermore, the cooling apparatus (1) comprises a plurality of light sources (21, 22) for producing light that hinders fouling of the exterior of the tubes (10), the light sources (21, 22) being dimensioned and positioned with respect to the tubes (10) so as to cast anti-fouling light over the exterior of the tubes (10), wherein the light sources (21, 22) have a generally elongated shape, and wherein the light sources (21, 22) are arranged in at least two mutually different orientations in the cooling apparatus (1).

A cooling apparatus for cooling a fluid by means of surface water, the cooling apparatus comprising more than one tubes for containing and transporting the fluid in its interior, the exterior of the tube being in operation at least partially submerged in the surface water so as to cool the tube to thereby also cool the fluid, at least one light source for producing light that hinders fouling on at least part of the submerged exterior and at least one optic unit for enhancing the distribution of anti-fouling light on the submerged exterior. By this structure anti-fouling of the cooling apparatus can be assured in an effective manner.