A heat exchanger having a fins and tubes heat exchanger coupled to a plates heat exchanger and an open sided bypass compartment facing one of the edges of the fin and tubes heat exchanger. The plates heat exchanger has an inlet zone and an outlet zone. The heat exchanger is configured to guide a fluid to flow from the inlet zone, through inlet pathways between plates of the plates heat exchanger, and fins of the fins and tubes heat exchanger then toward the bypass compartment, then in between the fins facing outlet pathways, toward in between the surfaces of the plates facing the outlet pathways, and then toward the outlet zone.

A heat exchanger, at least comprising a plurality of rows of media guiding ducts (12) for passing a media flow and a plurality of rows of fluid ducts for passing fluid to be temperature-controlled, and having strip-shaped flow profile parts (20), wherein at a transition between the respective guide part of the flow profile parts (20) and their plug-in part two mutually opposite steps are formed, which allow the flow profile part (20) to sit on the adjacent end faces of a fluid duct without spacing, wherein the flow profile part (20) does not project at any point into a free opening cross section, which is defined by the imaginary extension of the inner, mutually facing boundary walls of a media duct (12) and by a media inlet of this duct (12).

A heat exchanger including a plurality of fluid channel plates laminated on each other to form a cooling water fluid channel through which cooling water flows and an air fluid channel through which air flows. The fluid channel plates have a cooling water inlet hole through which the cooling water is introduced and a cooling water outlet hole through which the cooling water is discharged. Beads block the flow of the cooling water, protrude between the cooling water inlet hole and the cooling water outlet hole, are arranged to surround the periphery of the cooling water inlet hole and the cooling water outlet hole, and are spaced apart such that flow resistance of the cooling water decreases as a flow length of the cooling water increases, so that flow distribution of the cooling water can be uniform.

A heat exchanger includes flat sheet shaped partition members, and spacing members alternately stacked with the partition members to keep a space between an adjacent pair of the partition members. Each of the partition members is sandwiched between a first passage and a second passage alternately formed. Each of the spacing members has a frame portion formed along a periphery of the partition members. Each frame portion includes a ridge formed on one surface of the frame portion, and an elongated recess formed on an other surface of the frame portion. The ridge of one of an adjacent pair of the spacing members fits into the elongated recess of the other spacing member. Each of the partition members is sandwiched between the ridge of one of a pair of the spacing members adjacent to the partition member and the elongated recess of the other spacing member.

A heat exchanger includes a body that includes an at least two opposing surfaces and the at least two opposing surfaces are a trapezoidal. The body of the heat exchanger also includes, an area of cross sectional flow channels through the body. The area of cross-sectional flow channels in a direction perpendicular to the bases of the trapezoid increase or decrease between the two bases.

A first passage forming member and a second passage forming member each include: a rib portion including a first wall portion constituting an end in a first direction of the first passage, a second wall portion constituting an end in the first direction of the second passage, and a third wall portion separating the first passage and the second passage adjacent to each other in a second direction from each other; a board being in contact with an end in a third direction of the rib portion, and separating a first connection passage and a second connection passage from each other; a first blocking portion installed at the end of the rib portion, to block between the first passage and the second connection passage; and a second blocking portion installed at the end of the rib portion, to block between the second passage and the first connection passage.

The invention relates to a method for manufacturing a heat exchanger of the brazed plate and fin type, including: stacking, with spacing, a set of plates parallel to each other and in a longitudinal direction so as to define, between said plates, a plurality of passages adapted for the flow, in the longitudinal direction, of a first fluid to be brought into a heat exchange relationship with at least one second fluid, said plates being demarcated by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction.

A heat exchanger with several plates arranged in parallel is provided. The heat exchanger has a first series of passages for channeling at least one first fluid and a second series of passages for channeling at least one second fluid. The second fluid being in a heat-exchange relationship with at the first fluid. A mixer is arranged in the passage of the first series. The mixer has at least one first channel for the flow of a first phase of the first fluid in a flow direction. The mixer has at least one second channel for the flow of a second phase of the first fluid. The mixer has at least one opening fluidically connecting the first channel to the second channel.

The invention relates to a method for calculating the strength and the service life of a process apparatus through which fluid flows, wherein: temperatures existing at a plurality of different points of the apparatus are measured at a first time point in order to obtain temperature measurement values (201); the temperature measurement values are used as constraints in a finite element method (203) in order to determine mechanical stresses existing at a plurality of different points in the material of the apparatus as stress values (204); the remaining service life of the material of the apparatus is determined from the obtained stress values (205); the remaining service life of the material of the apparatus is determined also in dependence on data regarding the apparatus that were determined at a second time point (207), which second time point is earlier than the first time point.

The present invention relates to a heat exchanger. The purpose of the present invention is to provide a heat exchanger formed to enable two different types of fluids and one other type of fluid to undergo heat exchange with each other, that is, formed to resultingly enable three types of fluids to undergo heat exchange with each other. More specifically, provided is a heat exchanger formed so that two types of coolants having different temperature ranges, such as a coolant for cooling a battery and a coolant for cooling a motor, and one type of refrigerant in an electric vehicle may undergo heat exchange by means of one heat exchanger.