A heat dissipator includes a plate-shaped base portion extending in a first direction along a refrigerant flowing direction and in a second direction orthogonal to the first direction and has a thickness in a third direction orthogonal to the first direction and the second direction, and fin groups including fins arranged in the second direction, protruding from the base portion to one side in the third direction and extending in the first direction. One of the fins includes a spoiler with an opposing surface that opposes one side in the first direction that is a downstream side in the refrigerant flowing direction. A number of the spoilers included in each of the fins in a same second direction position in the fin groups increases toward the one side in the first direction.

A heat dissipator includes a plate-shaped base portion that extends in a first direction along a direction where a refrigerant flows and in a second direction orthogonal to the first direction and has a thickness in a third direction, and fins that protrude from the base portion to one side in the third direction, extend in the first direction, are arranged in the second direction, and guide the refrigerant. A second of the fins is provided continuously on one side in the first direction that is a downstream side of a first of the fins, and a third fin that is provided continuously on another side in the first direction of the first fin, and includes an end on the one side in the third direction on the other side in the third direction.

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 heat exchange structure includes: two flow channels stacked in a stacking direction (Y direction) and thermally coupled to each other; and a fin structure detachably installed in at least one flow channel of the two flow channels. The fin structure includes fins arranged in a longitudinal direction (Z direction) of the at least one flow channel in which the fin structure is installed, the fins configured to form openings alternately arranged along the at least one flow channel on one side and the other side of the at least one flow channel in a width direction (X direction).

A rack system which includes a rack frame and at least one reservoir for housing at least one rack-mounted immersion case is disclosed. The rack frame is configured to slidably accommodate racking and de-racking operations of the at least one rack-mounted immersion case. The at least one collapsible reservoir, which is configured to store a fluid therein, is fluidly connected to the at least one rack-mounted immersion case, has a first portion fixedly connected to the at least one rack-mounted immersion case, and a second portion fixedly connected to the rack frame. The at least one collapsible reservoir is configured to respectively collapse and expand along a racked space and a de-racked space, the racked and de-racked spaces being defined between a backplane of the at least one rack-mounted immersion case and a backplane of the rack frame, the de-racked space being larger than the racked space.

A processing apparatus includes an upper die assembly a lower die assembly and a driving mechanism. The upper die assembly includes a first cutter. The lower die assembly includes a second cutter and a lower die plate. The lower die plate has an upper end portion facing the upper die assembly. The second cutter includes a second cutting edge portion higher than the upper end portion. Further provided is a control method for the processing apparatus, and a heat exchanger.

A fin element for a heat exchanger, in particular for a heating, ventilation, and/or air conditioning system of a motor vehicle, with a plurality of connecting sections and of longitudinal sections, whereby in each case two adjacent longitudinal sections are connected to one another by a connecting section, whereby at least one of the longitudinal sections has gills formed by webs and slots, whereby at least one of the webs has a flared web surface, whereby the web surface is flared out from the at least one longitudinal section, whereby the web surface forms at least two surface sections arranged angled to one another.

A heat exchanger in one aspect of the present disclosure comprises a plurality of plates and a fin. The fin comprises at least one first portion and at least one second portion. The at least one first portion is a wall surface that comprises at least one first opening. The at least one second portion, which is paired with the first portion, is a wall surface different from the first portion. The second portion comprises a second opening paired with a corresponding one of the at least one first opening. The fin comprises at least one opening pair, which is a pair of the first opening and the second opening. The at least one opening pair has a non-overlapping positional relationship in which the paired first opening and second opening are at least partially non-overlapping along a flow direction of a second fluid.

A heat recovery system has an evaporator in which a working medium is evaporated, an expander by means of which energy from the working medium in vapor form is made usable, a recuperator operating as an internal heat exchanger, a condenser that condenses the working medium in vapor form, and a pump to move the working medium through a circuit. At least one plate heat exchanger with flow channels formed in interspaces between the heat exchanger plates is provided as a component of the system and includes at least the recuperator and the condenser.

A evaporative cooling device is described having a pair of heat conducting plates arranged in spaced, generally parallel relationship with spacing elements separating the plates from one another and defining primary and secondary flow channels between the plates. Inlet ducts are connected to the primary channels and outlet ducts connect from the primary and secondary channels. A water distribution system is also provided to supply water to the secondary channels such that a primary air flow through the primary channels may be cooled by heat conduction along the plates to cause evaporation of the water into a secondary air flow through the secondary channels.