The disclosure relates to a plate heat exchanger in a sealed design, with a stacked arrangement comprising a front-side and a rear-side end plate, wherein at least one end plate is constituted as a connection plate, heat exchanger plates which are arranged and stacked between the front-side and the rear-side end plate, in such a way that cavities for accommodating a plurality of heat exchanger media are formed between the heat exchanger plates, and sealing elements which are disposed to seal the cavities, and a clamping device, configured to exert an external clamping pressure on the stacked arrangement for the tensioning, wherein the clamping device is formed to encompass the stacked arrangement in a form-fit manner at least in sections, namely at least in a corner region of the stacked arrangement.

A plate heat exchanger plate ports and, between the ports, a heat transfer area partly divided by a barrier. The heat exchanger plate comprises a first port, a second port, a third port and a fourth port. Further, the heat exchanger plate is provided with a first transition area between the first and second ports and the heat transfer area, and a second transition area between the third and fourth ports and the heat transfer area, the first and second transition areas being provided with transition ports. The first transition area is open towards the heat transfer area, and the second transition area is separated from the heat transfer area by a sealing.

A plate heat exchanger includes a heat exchanger plate having a heat transfer area and an edge area, extending around the heat transfer area. The heat exchanger plate is a double wall plate formed by two adjoining plates compressed to be in contact with each other. A sensor configured to sense at least one parameter and to produce a signal depending on the parameter includes a sensor probe that is provided between the adjoining plates.

A heat transfer plate comprises a first end area, a heat transfer area and a second end area along a longitudinal center axis of the plate which divides the plate into first and second halves delimited by first and second long sides respectively. The first end area comprises an inlet port hole, a distribution area and a transition area. The transition area adjoins the distribution area and the heat transfer area. The distribution area has a distribution pattern of projections and depressions, the transition area has a transition pattern of projections and depressions, and the heat transfer area has a heat transfer pattern of projections and depressions. An imaginary straight line extends between two end points of each transition projection with an angle relative to the longitudinal center axis. The angle varies between the transition projections and increases from the first long side to the second long side.

A heat sink includes a heat sink base, a first fin, and a second fin. The spacing between the base and the first fin and the second fin, restively, may be adjusted by rotating a threaded rod. The threaded rod includes a first threaded knurl that is engaged with the first fin and a second threaded knurl that is engaged with the second fin. The thread pitch of the first threaded knurl and the second threaded knurl may differ. For example, the pitch of the first threaded knurl may be smaller than the pitch of the second threaded knurl if the first fin is located nearest the heat sink base relative to the second fin. The spacing of the heat sink fins may be adjusted based upon the current operating conditions of the electronic device to maintain an optimal temperature of a heat generating device during device operation.

A self cleaning filtering method and apparatus for a plate heat exchanger including: a suction pipe, centrally disposed within an inlet channel adapted for receiving a cooling medium therein for the plate heat exchanger; nozzles extending radially from, and in fluid communication with, the suction pipe, the nozzles spaced apart from each other; a low pressure chamber, external to the heat exchanger, abutting the pressure plate, the low pressure chamber in fluid communication with the inlet channel, and a section of the suction pipe extending into the low pressure chamber; a drain valve adapted to reversibly open a drain of the low pressure chamber; and a rotation mechanism controlling axial rotation of the suction pipe.

The flow passage structure comprises: a plural number of ceramic flow passage layers laminated with one another, inside of which a flow passage is formed; two outermost layers disposed on respective sides of the plural number of flow passage layers in a lamination direction where the flow passage layers are laminated; an outer elastic sheets made of an elastic body, which is interposed between each of the outermost layers and the flow passage layer adjacent thereto; and a fastening member fastening the two outermost layers to each other, in a state that the two outermost layers sandwich the flow passage layers from both sides in the lamination direction.

A porthole gasket is configured to seal a circumferential region around two overlapping portholes in two adjacent heat exchanger plates of a plate heat exchanger, so as to define a passage for a fluid into or out of the plate heat exchanger. The porthole gasket has a ring-shaped portion to be compressed between the two adjacent heat exchanger plates while surrounding the overlapping portholes. The porthole gasket further comprises a plurality of projections that protrude from an outer perimeter of the ring-shaped portion and are configured to be compressed between the two adjacent heat exchanger plates so as to support the ring-shaped portion against pressure exerted by the fluid. A plate package for a plate heat exchanger is configured to include the two adjacent heat exchanger plates and the porthole gasket.

A heat exchanger plate has a vertical center axis dividing the plate into a left and a right half delimited by a first and second long side, respectively. A horizontal center axis divides the plate into an upper and a lower half delimited by a first and second short side, respectively. The plate includes a port hole with a reference point that coincides with a center point of a biggest imaginary circle that can be fitted into the port hole. The port hole is arranged within the left half and the upper half. The porthole has a form defined by a number of corner points of an imaginary plane geometric figure of which at least one is displaced from an arc of the circle, and the same number of thoroughly curved lines connecting the corner points. The corner points include first, second and third corner points.

A heat exchanger stack includes a rack structure and heat exchangers disposed above one another and supported thereby. Each heat exchanger includes: a frame; a tubing arrangement configured to circulate fluid therein; a plurality of fins; and a plurality of wheels mounted to the frame for guided mounting of the heat exchanger panel on the rack structure including first and second upper wheels spaced apart from one another and first and second lower wheels spaced apart from one another. Each upper wheel engages a corresponding upper wheel guiding member of the rack structure, and each lower wheel engages a horizontal portion of a corresponding lower wheel guiding member of the rack structure so that the heat exchanger panel is translatable horizontally. A method for mounting a heat exchanger panel to a rack structure is also provided.