Abstract: The receiving-heating unit contains a sleeve (9) fixed on the housing (2) of the heating element (1) and a sliding insert (5) therein. A sealing ring (11) is arranged in an annular groove between a collar (10) at the lower part of the sliding insert (5) and the front surface of the sleeve (9). There is a switch (8) provided with a switch arm (3) which can be rotated around the axis of the sleeve (9) and the sliding insert (5) against the action of a spring (4) and is provided with means for lifting and lowering the sliding insert (5). Means for holding the mouth part (22) of a bottle (21) is a lever (15) tiltable against the action of another spring (19), having a first arm (23) moved by the mouth part (22) and a second arm (20) locking the switch arm (3).

Abstract: The objective of the present invention is to realize a system in which a resist stripper liquid used in resist stripping is regulated so as to have a resist component concentration within a certain concentration range even when the resist stripper liquid is continuously used for a long time without replacing it. In stripping a positive resist with a stripper liquid, the resist components dissolving in the stripper liquid can be diminished by cross-flow filtration with a specific ceramic filter (5). In the resist stripping system, a resist-component-containing stripper liquid resulting from a stripping step is treated in a filtration step, and the resultant concentrated stripper liquid having a heightened resist-component concentration is suitably discharged from the system. A fresh stripper liquid is suitably added to the stripper liquid from which the resist components have been removed, and the resultant stripper liquid is reused in the stripping step.

Abstract: A tyre-changing machine comprising support means (4) for a wheel, a tool- bearing arm (50) at an end of which a bead-breaking tool (6) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motohsed means (32, 33) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means (4) and the tool-bearing arm (50), such as to press the bead-breaking tool (6) against a flank of a tyre on the wheel, characterised in that it comprises second motorised means (64), activatable independently from the first motorised means (32, 33), which second motorised means (64) are destined to rotate the bead-breaking tool (6) about the hinge axis (E) with the too- bearing arm (50), in order to vary an inclination of the bead-breaking tool (6) with respect to the axis (A) of the wheel which is mounted on the support means (4).

Abstract: A motor controller includes a signal-generating unit that is operable so as to control rotational direction and rotational speed of a motor of a sunshade assembly, and a processing unit that operates the signal-generating unit to rotate the motor in a reverse direction to thereby retract a flexible screen body of the sunshade assembly, and to generate a decelerating signal for progressively reducing the rotational speed of the motor during a final stage of retraction of the flexible screen body.

Abstract: Movable partition systems include a movable partition and an intumescent material positioned to seal a gap at a periphery of the partition. In some embodiments, masses of intumescent material may be shaped and positioned to expand toward one another, contact one another, and form a seal therebetween at a periphery of the partition when the movable partition is exposed to fire. A fire barrier may be provided by extending a partition along a track assembly, and heating an intumescent material to cause the intumescent material to expand, char, and form a seal extending along at least a portion of a periphery of the movable partition. Upon installing a movable partition, at least one mass of intumescent material may be positioned to seal at least a section of a gap at a periphery of the movable partition when the at least one mass of intumescent material is exposed to fire.

Abstract: A magnetic driving device comprises a slider disposed on an inside of a glass; a handle disposed on an outside of the glass; a plurality of magnets respectively disposed in the slider and the handle, the polarities of the adjacent magnetic poles of the magnets disposed in the slider being opposite to each other, the polarities of the adjacent magnetic poles of the magnets disposed in the handle being opposite to each other; and a spacing layer disposed between the adjacent magnets to space the adjacent magnets from each other, the spacing layer being made of a material that is not a magnet, wherein positions of the magnets in the slider and positions of the magnets in the handle correspond to each other one by one, and the polarities of the magnetic poles, which are toward the glass, of the magnets in the slider are opposite to the polarities of the magnetic poles, which are towards the glass, of the corresponding magnets in the handle, respectively.

Abstract: A window blind, in particular a Roman blind, having a blind panel (2) and at least one blind ribbon (4) fastened to one side of the blind panel (2) and having a traction mechanism (8) connected thereto, and a winding device (11) disposed at one end of the blind panel (2) having an electromotive drive (13) that is connected to a rechargeable battery (14), and the battery (14) is electrically charged by means of at least one photovoltaic solar cell (15). The solar cell is attached to the blind panel (2), wherein the electric connection between the battery (14) and the solar cell (15) is formed by electric conductors (6a, 6b) that are attached to the blind ribbon (4) and/or the traction mechanism (8). The electrical conductors can be integrated into the blind ribbon and/or a cord which is part of the winding device (11).

Abstract: A safety device for a curtain assembly includes multiple connection members fixedly connected to the curtain and located close to the lower end of the curtain. Each connection member includes a connection portion and a plate and the connection portion is fixed to the curtain and the plate includes an engaging recess. Multiple engaging members are connected to the cables of the curtain assembly respectively and each engaging member includes an engaging portion to which the second end of each cable is connected. The engaging portion is disengageably engaged with the engaging recess of the plate corresponding thereto such that when the cables are pulled by a certain level of force, the engaging portion is separated from the engaging recess.

Abstract: Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively decoupled from an enabled DC output such that the DC output can be monitored for acceptable operation in-situ. The enabled DC output may be selectively coupled to a battery output terminal. A charge current may be sensed between the enabled DC output and the battery output to control charging of the battery with a pulse-width modulation operation by controlling the selective coupling of the enabled DC output to the battery output. The enabled DC output and the battery output are coupled in a logical-OR configuration to generate a supply output providing current from the enabled DC output and the battery. The supply output may drive a movable partition controller and a motor configured for opening and closing a movable partition.

Abstract: A vertical blind united by weaving and a method of fabricating the same are disclosed, wherein a plurality of fabric louvers 20 each having a constant width are arranged at a regular interval in one surface of a curtain section 10 having a predetermined area resulting from a mesh structure, the curtain section 10 is united with the fabric louvers 20 by weaving along longitudinal edges of the fabric louvers 20, and upper ends of the fabric louvers 20 are applied to a typical vertical blind structure, so that lighting is adjusted by rotation of the fabric louvers and air ventilation through the curtain section 10 is facilitated.

Abstract: A sunshade assembly includes a base unit, a spool, a flexible screen body, a driving unit, and a cover unit. The base unit has an opening. The spool is disposed rotatably in the base unit. The flexible screen body is wound on the spool, and has a free end that is movable through the opening in the base unit. The driving unit is provided on the free end of the flexible screen body. The cover unit is coupled pivotably to the base unit. When the free end of the flexible screen body moves from an extended position to a retracted position, the driving unit drives rotation of the cover unit from an open position to a closed position, where the cover unit covers the opening in the base unit.

Abstract: A roller shade includes at least an upper rail, a lower rail, a shade assembly, an automatic winding assembly and an anchor seat. The automatic winding assembly and the anchor seat are installed on two sides of the upper rail. The automatic winding assembly has a first cap assembly and a first transmission unit hinged inside to perform transmission through an elastic element. The first transmission unit further has a stub shaft at another side to wedge in one side of an axle of the shade assembly. The anchor seat is wedged in another side of the axle of the shade assembly to form rotation. Through rotation of the automatic winding assembly, retraction and extension of the shade can be controlled to facilitate operation.

Abstract: A safety device for roller shade bead chain includes a connecting seat, a rotary disc disposed atop the connecting seat and provided along a circumferential face with a plurality of retaining recesses, an elastic element located between the connecting seat and the rotary disc, and a cover plate assembled to the connecting seat to restrict the rotary disc and the elastic element to the connecting seat. A bead chain for controlling a roller shade can be wound around the rotary disc, and then pulled into a straight state before the connecting seat is fixed to a predetermined position. The bead chain being pulled straight and held in place via the safety device will not swing freely to dangerously entangle with and strangulate a child, and is therefore safer for use.

Abstract: An improved safe structure of cord set for a window curtain includes a base, a plurality of towing cords, a shade body and a pulling cord unit. The shade body is provided for each towing cord with buckles and a connector for connecting an end of the towing cord. The connector includes a socket fixed on the shade body, an insertion connecting member connected with the socket for fixing an end of the towing cords, the insertion connecting member has a blind hole for placing therein an end segment of the towing cords, thereby blocking of the end segment in the buckle is prevented when the connecting member is released from the socket, the buckle has thereon a breaking slit, thereby the towing cord can be loosened and released from the buckle when it is exerted with an axial pulling force over a predetermined value.

Abstract: A tandem screen assembly for shielding an external area of a building such as a colonnade by attaching a head box to the outside of the building and two pairs of upright guides are at each end of the head box which provide a track for a transparent roller screen and a track for a mesh roller screen side by side so that one screen lies in front of the other in a compact arrangement. The assembly is modified by the inclusion of a mullion which creates a passageway into the shielded area. The pairs of upright guides permit the locking of a screen rail at half height. A screen rail has a handle which shoots bolts in and out of the upright guides to arrest the screens, allowing them to be tensioned by the hand crank or electric motor drive.

Abstract: A foot assembly is adapted to be detachably attached to a pole comprising a shaft portion and a ball portion. The foot assembly comprises a foot member defining a first body cavity and a clip member adapted to be detachably attached to the shaft portion of the pole assembly. With the clip member attached to the shaft portion of the pole assembly adjacent to the ball portion, the first body cavity of the foot member receives the ball portion, at least a portion of the shaft portion, and at least a portion of the clip member to detachably attach the foot member to the pole.

Abstract: The invention relates to a multichannel profiled element for curtains, comprising a plurality of downwardly open guiding channels for each receiving at least one carriage. It consists of a plurality of profiled elements which each form one of the guiding channels, can be moved in the longitudinal direction of the channels, and are interconnected in a fixed manner perpendicularly to the longitudinal direction. The multichannel profiled element for curtains is suitable for a curtain device and can comprise a curved section with a comparatively small bending radius.

Abstract: A method for the manufacturing of nanocellulose. The method includes a first modification of the cellulose material, where the cellulose fibres are treated with an aqueous electrolyte-containing solution of an amphoteric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also the nanocellulose is manufactured in accordance with the method and uses of the cellulose.

Abstract: A method for manufacturing mechanical pulp. Raw material of the mechanical pulp is introduced. The raw material is refined in a first refining stage to form the mechanical pulp. The pH of the mechanical pulp is adjusted to between 9 and 11 in a process step in which a first process delay is arranged. The first process delay is at least 0.5 hours. The mechanical pulp is sorted into a first accepted stock and a first rejected stock. The first rejected stock is ozonated. The pH of the first rejected stock is at the start of the ozonation process is between 9 and 11. The ozonated first rejected stock is refined in a second refining stage so that at least a part of the ozonated first rejected stock will belong to a second accepted stock. The first accepted stock and the second accepted stock are combined. The mechanical pulp may be used.

Abstract: Methods for bleaching oxygen delignified and washed pumps having a consistency of between 8 and 20% are disclosed including a first chlorine dioxide bleaching step, washing the bleached pulp, subjecting the washed pulp to an alkaline extraction step to obtain an alkali-containing pulp, adding chlorine dioxide and adjusting the pH in a second chlorine dioxide bleaching step performed directly after the alkaline extraction step without an intermediate washing step, and subjecting the bleached alkali-containing pulp to a peroxide treatment step directly after the second chlorine dioxide bleaching step or with an intermediate washing step prior to the peroxide treatment step.

Abstract: The present invention relates to a method of manufacturing an opaque paper by using Genus Typha L. The method includes preparing Genus Typha L. bleached pulp from Genus Typha L. and fabricating a paper from the Genus Typha L. bleached pulp. According to the present invention, the method can provide paper with a low basis weight, even if it includes very little or no mineral charging agent but having high opacity, smoothness, and printability. Since it includes very little or no mineral charging agent, it may not have much deteriorated mechanical strength.

Abstract: The specification discloses a method for making a paper material having a reduced tendency to cut human skin. The method includes providing a papermaking furnish containing cellulosic fibers and from about 0.5 to about 5.0 wt % by weight dry basis expandable microspheres, forming a paperboard web from the papermaking furnish, drying the web, and calendaring the web to a caliper of from about 11.0 to about 18.0 mils and a density ranging from about 7.0 to about 12.0 lb/3000 ft2/mil. Papers formed according to the method and articles formed therefrom are also disclosed.

Abstract: A papermaker's fabric comprises a series of repeat units. Each of the repeat units comprises: a set of top machine direction (MD) yarns; a set of top cross-machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom MD yarns; and a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer. Each bottom MD yarn passes over a top CMD yarn that its immediate neighboring top MD yarn passes under. The top MD yarns, the top CMD yarns, and the bottom MD yarns interweave to form a twill papermaking surface on the top fabric layer.

Abstract: A process for producing a mold includes introducing a composition including a particulate, refractory material and a binder into a hollow model having an interior cavity which determines contours of all surfaces of the mold or a mold part, wherein the model includes at least two separate parts to permit removal of the mold, and applying a second composition containing at least one organosilicon component and at least one solvent to at least one of the separable parts before use.

Abstract: A casting die assembly which does not produce any burrs includes a stationary die and a movable die that are clamped in a condition in which a slide core is caused to move toward a center of a movable die, and a back surface of a protrusion of the slide core contacts a stopper section provided on a frame section. The stopper section is subjected to the pressure applied to the slide core during a casting operation. Since the stopper section is provided on part of the frame section, which is integrally formed on the periphery of the stationary die, the stopper section is not caused to retreat or deform by the casting pressure and as a result, the slide core is not moved and burrs are not produced.

Abstract: A process of making a multilayer metallic casting includes steps of simultaneously forming a first layer of a first metallic material and a second layer of a second metallic material using a continuous casting process, and continuously bonding the first and second layers to form a integrally cast multilayer metallic casting. The process may be performed using a twin-roll type continuous casting system having a continuous casting mold that includes a first mold compartment for receiving a molten first metallic material and a second mold compartment for receiving a molten second metallic. The molten first and second types of metallic material are gradually solidified into semi-solid shells and are pressed together by opposed casting rolls, creating a metallurgical bond between the first and second types of metallic material in order to form an integrally cast multilayer metallic casting. The process permits the large scale efficient manufacturing of near net shape multilayer metallic castings.

Abstract: A process of making a multilayer metallic casting includes steps of simultaneously forming a first layer of a first metallic material and a second layer of a second metallic material using a high speed continuous casting process, and continuously bonding the first and second layers to form a integrally cast multilayer metallic casting. The process may be performed using a twin-roll type continuous casting system having a continuous casting mold that includes a first mold compartment for receiving a molten first metallic material and a second mold compartment for receiving a molten second metallic. The molten first and second types of metallic material are quickly solidified into semi-solid shells and are pressed together by opposed casting rolls, creating a metallurgical bond between the first and second types of metallic material in order to form an integrally cast multilayer metallic casting. The process permits the high speed efficient manufacturing of near net shape multilayer metallic castings.

Abstract: An apparatus and a method for producing an amorphous alloy foil strip, which are capable of producing an amorphous alloy foil strip having a large sheet thickness in an industrial scale, are provided. A production apparatus 101 for an amorphous alloy foil strip S includes: a pair of cooling rolls 113a and 113b; a driving unit 111 configured to rotate the cooling rolls; and a crucible 114 configured to supply a molten alloy sequentially to an outer circumferential surface of the cooling roll 113a and an outer circumferential surface of the cooling roll 113b. The crucible 114 is movable along a moving unit 116. A molten alloy is supplied alternately to the cooling roll 113a and the cooling roll 113b while rotating and water-cooling the cooling rolls 113a and 113b.

Abstract: Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions.

Abstract: A process for producing a lithium-containing alloy material is described. The process supplies a light alloy material applicable to the design of lightweight structural components. The process includes first melting alloy materials at a required ratio into a homogeneous alloy melt, then pouring the alloy melt into a ladle protected with an inert gas and pre-filled with a lithium material, where the lithium material is vigorously flushed and mixed with a hot stream of the alloy melt, and diffused into the alloy melt, and then after uniformly mixing, pouring the lithium-containing alloy melt into a mold to form an ingot and produce a lithium alloy. The process solves the fundamental problems of both contamination and uncontrolled component caused by longtime overheat in traditional melting techniques, and is a novel, safe, economic, and efficient manufacture process.

Abstract: A method of mitigating against thermal contraction induced cracking during casting of a super Ni alloy, the method comprising: pouring liquid alloy into a mould such that liquid alloy is present in a feeder of said mould; and inducing an electrical current in alloy in said feeder to reduce a rate of cooling of alloy in said feeder.

Abstract: A seal assembly for a regenerative heat exchanger can include a primary sealing member with a mounting base and a flexible contact portion that defines a first distance between a proximal edge of the mounting base and a contact edge of the flexible contact portion, the first distance being generally constant along the length of the primary sealing member. The seal assembly can also include a second member with a mounting portion and a cantilevered portion that defines a second distance between a proximal edge of the mounting portion and a distal edge of the cantilevered portion, the second distance being generally constant along the length of the second member. The first distance is greater than the second distance by a predetermined amount so as to limit the preload flexure of the flexible contact portion against a sector plate of the heat exchanger when the seal assembly is installed in the regenerative heat exchanger.

Abstract: The invention relates to a method of manufacturing a heat storage material that contains heat storage capsules. The heat storage capsules include a phase change material that absorbs and/or discharges latent heat in response to a change in temperature. The phase change material resides within outer shells of the heat storage capsules. The method involves binding abutting peripheral portions of a plurality of heat storage capsules with a molding binder, so as to form an intermediate granular molded heat storage material. An outer peripheral surface portion of the granular molded heat storage material is coated with a coating binder. The coated granular molded heat storage material is then subjected to a treatment that causes the coating binder of the coating layer to polymerize. The invention also relates to heat storage adsorbent materials, and articles (e.g., canisters) that include such heat storage adsorbent materials.

Abstract: The invention relates to a cooling arrangement comprising a heat spreader (2) comprising a first surface (5), a second surface (8), at least one heat absorption chamber (9) and at least one heat dissipation chamber (10), the at least one heat absorption chamber (9) being in thermal contact with the first surface (5) and the at least one heat dissipation chamber (10) being in thermal contact with the second surface (8) and hydraulically coupled to the at least one heat absorption chamber (9). A cooling fluid (13) can be driven from the heat absorption chamber (9) to the heat dissipation chamber (10) using a plurality of flow patterns for cooling the first surface (5).

Abstract: The invention relates to a hollow panel being fixed to the structure of a building, and reactive to thermal radiation, namely solar radiation, including, between a first face being oriented towards a first environment and a second face being oriented towards a second environment, at least one internal fluid-circulation channel, namely air channel, extending between a first opening located at a first end edge and a second opening located at a second end edge, the internal channel extending between at least a perforated first receiver being exposed to thermal radiation on the side of first face and at least a second air-tight receiver on the side of second face and formed by a condenser, wherein the first receiver and the condenser are formed of a flexible web, namely textile web.

Abstract: An environmental conditioning system for a computer room includes a perforated tile, a heat exchanger mounted to the perforated tile, and a forced air system mounted to the heat exchanger. The forced air system being configured and disposed to direct a flow of air having a first temperature into the heat exchanger. The flow of air exits the heat exchanger at a second temperature and passes through the perforated tile into the computer room. The second temperature is distinct from the first temperature.

Abstract: When configuring a heat exchange ventilator that includes a supply air duct that takes in outdoor air and blows it out indoors, an exhaust air duct that takes in indoor air and blows it out outdoors, and a plurality of heat exchange elements that exchanges heat between outdoor air flowing down through the supply air duct and indoor air flowing down through the exhaust air duct, the heat exchange elements being arranged in series from an outdoor side to an indoor side, the sensible heat exchange efficiency of a heat exchange element arranged on the most outdoor side is made higher than the sensible heat exchange efficiency of a heat exchange element arranged on an indoor side adjacent to the heat exchange element arranged on the most outdoor side, thereby preventing condensation and freezing on the heat exchange element on the outdoor side.

Abstract: An installation element of an installed packing for material and/or heat exchange between gases and liquids, having pegs and recesses for engaging with at least one further installation element. In order to make the engagement easier the recesses each are associated with ring gap segments.

Abstract: The invention relates to a method and apparatus relate for the liquefaction of natural gas. In another aspect, the present invention concerns the deriming the interior surfaces of a cryogenic heat exchanger employed in the liquefaction of natural gas. In another aspect, the present invention concerns the utilization of a pump to derim the interior surfaces of a cryogenic heat exchanger.

Abstract: A heat exchanger comprises a substantially pillar sheathed heater, a substantially cylindrical case, and a spiral spring. The sheathed heater is accommodated in the case. The spring is provided so as to be wound around an outer peripheral surface of the sheathed heater. Thus, a spiral flow path is formed among an outer peripheral surface of the sheathed heater, an inner peripheral surface of the case, and the spring. The spring functions as a flow velocity conversion mechanism, a turbulent flow generation mechanism, a flow direction conversion mechanism, and an impurity removal mechanism. A water inlet and a water outlet are respectively arranged at positions eccentric from a central axis of the case on a side surface of the case.

Abstract: A high-performance heat sink includes a set of first radiation fins each having an abutment portion, two radiation fins extending from two lateral sides of the abutment portion, and upright pins extending from each radiation fin portion; a fastener that fastens the abutment portions of the first radiation fins together such that the radiation fins are radially extended out; second radiation fins fastened to the upright pins of the first radiation fins and arranged at different elevations; and thermal pipes fastened to the bottom side of the abutment portions of the first radiation fins, each thermal pipe having two distal ends respectively fastened to the two distal ends of each second radiation fin.

Abstract: A heat exchanger is provided that comprises at least two rows of low channels through which a liquid medium can flow, and secondary surfaces arranged between the flow channels and over which air flows, the liquid medium and the air being circulated in the cross-counterflow and the first row being arranged on the air outlet side and the second row on the air inlet side. According to the invention, the liquid medium enters a first region of the first row, is deflected into a second region inside the first row, and from the second region of the first row into the second row.

Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates (1), a first end plate (2) and a second end plate (3). The plates (1-3) are permanently joined to each other by means of a braze material. Each heat exchanger plate has a heat transfer area and a plurality of porthole areas surrounding a respective porthole. The plate heat exchanger comprises a plurality of (50, 53) having a bottom surface (51) turned towards the heat exchanger plates. At least one of the flat elements comprises an annular protrusion (52) extending from the bottom surface (51) and tightly abutting one of the porthole areas of the outermost heat exchanger plate.

Abstract: A method of manufacturing a plate heat exchanger of the type comprising a plurality of plates defining paths for fluids to flow through, the plates being assembled to each other by brazing, and a heat exchanger produced by such a method is presented.

Abstract: A plate heat exchanger comprises a plurality of heat exchanger plates (1). The plates are provided beside each other and permanently joined to each other to form a plate package having first plate interspaces and second plate interspaces. Each plate has a heat transfer area (20) and four porthole areas (21-24) defined by a porthole edge (25). Each of the porthole areas comprises an annular flat area (31) located at one of a primary and secondary level, and a set of inner portions (32) on the annular flat area at the other of the primary and secondary level. Each inner portion has an inner part adjoining the porthole edge and an outer segment adjoining the inner part and having an angular extension of at least 180°. The outer segment has a continuous contour and a radius R, which is allowed to vary within the range 0.8R?R?1.2R.

Abstract: A fin includes straight segments and substantially circular arc segments connected with the straight segments in turn along a longitudinal direction such that the arc segments form respective wave crests and wave troughs of the fin. The fin is divided in a lateral direction into first and second end portions and an intermediate portion between the first and second end portions. Each arc segment at least forming the wave troughs in the first end portion is separated from the respective arc segment of the corresponding intermediate portion via a longitudinal slot. A top of each arc segment at least forming the wave troughs in the first end portion is formed with a lateral slot along the lateral direction such that each arc segment at least forming the wave troughs in the first end portion is divided into first and second straight portions separated from each other.

Abstract: A fin has a substantially flat base plane with a first side facing a first direction and a second side facing a second direction. The fin also has a first louver with a leading edge closer to the base plane and a trailing edge offset from the base plane in the first direction, a second louver located at least partially downstream of the first louver, with a leading edge offset from the base plane in the second direction and a trailing edge offset from the base plane in the first direction, and a third louver located at least partially downstream of the second louver, the third louver having a leading edge offset from the base plane in the second direction and a trailing edge closer to the base plane than the third louver leading edge.

Abstract: Ion wind fans produce ozone. In one embodiment, a heat sink used in conjunction with an ion wind fan includes at least one ozone catalyst fin coated with an ozone catalyst, to destroy at least some of the ozone produced by the ion wind fan. In one embodiment, the ozone catalyst fan protrudes from the downstream side of the heat sink towards the ion wind fan.

Abstract: A heat exchanger system having a fluid passage operable to fluidly communicate a first fluid and a heat transfer surface extending from the fluid passage for transferring heat between the first fluid and a second fluid. The system can further include a heating element operably coupled to and selectively applying thermal energy to at least one of the fluid passage and the heat transfer surface.

Abstract: The cooling arrangement for a server rack for accommodating a plurality of plug-in components includes a vertically running coolant air channel, having a plurality of air intake openings and a common exhaust air opening. Air intake openings can each be connected to an air outlet opening of a plug-in component, whereby the corresponding air intake opening is assigned to plug-in component. Air intake openings each have a throttle element for varying their air passage cross section.