A tubular body arrangement for a temperature-control device, e.g., for temperature-controlling an electrical device, is disclosed. The tubular body arrangement includes at least one first tubular body and at least one second tubular body that can each be flowed through by a temperature-control fluid and that each include a circumferential wall extending along an axial direction. The first tubular body has a first tube flange that is deformable for compensating for at least one of a position change and a dimensional change of an axial length of at least one of the tubular bodies. The first tube flange projects from the circumferential wall of the first tubular body at an angle. The second tubular body is mounted on the first tube flange so that the first tubular body and the second tubular body jointly bound a tubular body interior that can be flowed through by the temperature-control fluid.

A heat exchanger includes: a heat-exchanger core which includes flat fins each having a plurality of cuts arranged on one side of each flat fin and allowing heat transfer tubes to be inserted into the cuts, and which has a recess on the other side of the flat fins; and a heat-exchanger core having protrusions which fits in the recesses. The heat-exchanger core also includes flat fins each of which has a plurality of cuts allowing heat transfer tubes to be inserted into the cuts, and also each of which has protrusions on a side of the fin; and a heat-exchanger core having recesses which allow the protrusions to fit in the recesses.

The invention relates to an evaporator (111), notably for a motor vehicle air conditioning circuit (100), comprising a stack of plates forming tubes (300) for the circulation of a refrigerant fluid together delimiting air passages to cool an air flow (250) flowing through said passages through the evaporator (111).

According to the invention, at least one of said tubes (300) has a single flow path (315a, 315b, 315c) for said refrigerant fluid between an inlet orifice (310) and an outlet orifice (320), said flow path (315a, 315b, 315c) comprising a plurality of successive passes, said inlet orifice (310) of said at least one tube (300) being in fluid communication with a refrigerant fluid inlet port (210) of said evaporator (111), and said outlet orifice (320) of said at least one tube (300) being in fluid communication with a refrigerant fluid outlet port (220) of said evaporator (111).

A heat exchanger includes: a heat exchanging part that includes flat tubes aligned vertically when the heat exchanger is installed; a first flow divider that includes a first pipe through which a refrigerant enters or exits from the first flow divider, second pipes that provide refrigerant flow paths between the heat exchanging part and the first pipe, and a main body that internally has a first space; and second flow dividers that each internally include one of second spaces that provide refrigerant flow paths between the heat exchanging part and the first flow divider. The first space communicates with a first end of the first pipe and a first end of each of the second pipes and causes the refrigerant to flow from the first pipe into the second pipes or from the second pipes into the first pipe.

A heat transfer device including a body bounding a cavity for receiving a heat transfer medium, an inlet, and an outlet for providing a fluid connection to the cavity is provided. Interconnecting elements are provided at each of the inlet and outlet for providing a fluid connection to the inlet and the outlet. At least one interconnecting element is configured to interconnect with, and provide relative movement between and a substantially consistent fluid connection with, an interconnecting element of an adjacent device, such as a similar heat transfer device, over a range of spacing between bodies of the devices.

A method for manufacturing a heat exchanger, wherein a firmly bonded connection is provided between tubes and ribs in order to form a radiator matrix, the connection provided by aligning and inserting tube ends into openings in a first and second collector in order to connect tubes to the two collectors, and a wall section of shaped tube ends is bent so that the tube ends are fixed against the collector through the wall section with interpositioning of a seal.

A hydraulic unit includesa hydraulic pump, a motor configured to drive the hydraulic pump, an oil cooler configured to cool hydraulic oil discharged from the hydraulic pump, a cooling fan configured to supply cooling air to the motor and the oil cooler, a shroud provided between the cooling fan and the oil cooler, arid a controller disposed adjacent to the motor. The controller controls the motor. The oil cooler includes a pair of headers, and a heat exchange unit provided between the pair of headers. The shroud includes a wall section covering at least one of the pair of headers. The controller includes a drive circuit configured to drive the motor, and a heat sink that cools the drive circuit. Part of the cooling air blown out from the cooling fan is guided toward the heat sink.

A heat exchanger includes: flat pipes disposed in multiple stages in a stage direction corresponding to an up-down direction; and fins that partition a space between adjacent two of the flat pipes into air flow passages through which air flows. Each of the flat pipes includes a passage for a refrigerant inside thereof. The flat pipes are divided into heat exchange paths arrayed in multiple stages in the stage direction. One of the heat exchange paths that includes a lowermost one of the flat pipes is defined as a first heat exchange path. A length of the passage from a first end to a second end of a flow of the refrigerant in each of the heat exchange paths is defined as a path effective length.

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 evaporator for an air conditioning system includes a plurality of clamshell plates stacked in series along a longitudinal axis and a plurality of core tubes coupled with the stacked clamshell plates. In an upper region of the evaporator, the stacked clamshell plates form an inlet tank and an outlet tank hydraulically communicated with the core tubes for a refrigerant flow. Each of the clamshell plates includes a pooling ridge on a first surface of the clamshell plate for pooling a liquid refrigerant by gravity such that the liquid refrigerant is evenly distributed to inlet core tubes disposed along the longitudinal axis.