SE526156C2

SE526156C2 - Device for maintaining cooling with air-cooled equipment involves cooling air liberated from particles by means of screening net component in connection with equipment

Info

Publication number: SE526156C2
Application number: SE0400570A
Authority: SE
Inventors: Tomas Alsterdal; Zoltan Kardos; Rickard Pettersson; Hans Wikstroem
Original assignee: Scania Cv Abp
Priority date: 2004-03-09
Filing date: 2004-03-09
Publication date: 2005-07-19
Also published as: DE112005000503B4; SE0400570L; SE0400570D0; DE112005000503T5; WO2005085609A1

Abstract

The device is for maintaining effective cooling with air-cooled equipment (1) and involves cooling air liberated from particles by means of a screening net component (2) in connection with the equipment. The net component total screening surface (4',4) is matched to the expected particle amount and the required air flow for matching the pressure drop over the net component.

Description

isf 20 n s I O u: 40 52 6 ' 1 55 Sammanfattning av uppfinningen Syftet med föreliggande uppﬁnning uppnås medelst ett sätt och en anordning enligt bifogade oberoende patentkrav. Summary of the Invention The object of the present invention is achieved by means of a method and a device according to the appended independent claims.

Ytterligare fördelar uppnås med utföranden enligt respektive beroende patentkrav.Additional advantages are achieved with embodiments according to the respective dependent claims.

Kort beskrivning av ritningen Nedan beskrivs uppﬁnningen närmare i anslutning till utföringsexempel samt till bifogade ritning, där v Fig. 1 schematiskt i en perspektivvy visar en första utföringsfonn av en anordning enligt-uppﬁnningen, Fig. 2 schematiskt i en perspektivvy visar en andra uttöringsforrn av en anordning enligt uppﬁnningen, och Fig. 3 schematiskt i en perspektivvy visar en tredje utföringsfonn av en anordning enligt uppﬁnningen.Brief description of the drawing The invention is described in more detail below in connection with exemplary embodiments and the accompanying drawing, in which Fig. 1 schematically shows in a perspective view a first embodiment of a device according to the invention, Fig. 2 schematically in a perspective view shows a second embodiment of a device according to the invention, and Fig. 3 schematically in a perspective view shows a third embodiment of a device according to the invention.

I ﬁg. 1 betecknas med 1 en schematiskt visad luftkyld anordning, exempelvis ett motorfordons kylare för motoms kylvätska, där kylaren i sin egenskap av vänne- växlare är känslig för igensättning och partikelbeläggning av föreﬁntliga kylkanaler, och där sådan igensätming och beläggning nedsätter kyleffektiviteten. Med 2 be- tecknas nätorgan, vilka har fonnen av en till den luftkylda anordningens luftintag 3 anslutande huv 4, väsentligen utformad av ett material med nätstruktur, varvid nät- organen är luftgenomsläppliga samt anordnade att avskärma den luftkylda anord- ningen från partiklar, exempelvis insekter, träﬂis etc. Nätorganen är exempelvis ut- förda av metalliskt ﬁnmaskigt nät. lO »_15 pzo .OlvO.3ø 525 156 3 Enligt uppfinningen är sagda nätorgan företrädesvis utformade så att nätorganens totala skärmande yta är anpassad till förväntad partikelmängd och önskat luftﬂöde för anpassning av tryckfall över sagda nätorgan, där tryckfallet väsentligen står i i omvänd proportion till sagda ytas storlek. I de flesta fall innebär detta att nätorganen har en skärmande yta med frontyta 4' och sidoytor 4' ', som är betydligt större än vad som motsvarar aktuellt luftintags 3 storlek.I ﬁ g. 1 is denoted by 1 a diagrammatically shown air-cooled device, for example a motor vehicle cooler for engine coolant, where the radiator in its capacity as a heat exchanger is sensitive to clogging and particle coating of future cooling ducts, and where such clogging and coating reduces cooling efficiency. Denoted by 2 are mesh means which have the shape of a hood 4 connecting to the air intake 3 of the air-cooled device 3, substantially formed of a material with a mesh structure, the mesh means being air-permeable and arranged to shield the air-cooled device from particles, for example insects , wood ﬂ ice, etc. The mesh means are, for example, made of metallic ﬁ m mesh. According to the invention, said mesh means are preferably designed so that the total shielding surface of the mesh means is adapted to the expected amount of particle and desired air size. In most cases, this means that the net means have a shielding surface with front surface 4 'and side surfaces 4' ', which is significantly larger than what corresponds to the size of the current air intake 3.

F ig. 2 visar en utföringsforrn där, såsom ett exempel, nätorganens frontyta 4'har en I icke plan, i exemplet korrugerad, konﬁguration så att dess projicerade yta väsentligt understiger dess effektiva skärrnande yta, varigenom bl.a. en väsentlig utrymmesef- fektivitet, volymeffektivitet, åstadkommes.F ig. 2 shows an embodiment in which, as an example, the front surface 4 'of the mesh means has a non-planar, in the example corrugated, configuration so that its projected surface substantially falls below its effective cutting surface, whereby i.a. a significant space efficiency, volume efficiency, is achieved.

Enligt en ytterligareutföringsforrn, Fig. 3, har sagda nätorgan väsentligen konﬁgu- rationen hos en stympad pyramid, där nätorganen ansluter till nämnda anordnings luftintag med den pyramidala konfigurationens topparti 4' ” och härvid har en sig från nämnda luftintag vidgande konﬁguration, varigenom en stor skär-mande yta er- bjuds. ' v F örfarandet liksom funktionen hos anordningen enligt uppfinningen torde till vä- sentlig del ha framgått ovan.According to a further embodiment, Fig. 3, said net means has substantially the configuration of a truncated pyramid, where the net means connect to the air intake of said device with the top portion 4 '"of the pyramidal configuration and thereby have a configuration widening from said air intake, whereby a large insert -mande surface is offered. The method as well as the function of the device according to the invention should have been substantially apparent above.

Medelst nätorganen förhindras igensättning och därmed försämrad kylning hos de p luftkylda anordningar-na och genom en anpassning av nätorganen kan tryckfall an- passas och i tillräcklig omfattning undvikas. Genom exempelvis korrugering av nät- organens ytor erhålles stor effektiv skärmande effekt samtidigt som en utrymmesef- fektivitet uppnås.By means of the net means clogging and thus deteriorating cooling of the air-cooled devices is prevented and by an adaptation of the net means pressure drops can be adjusted and sufficiently avoided. By, for example, corrugating the surfaces of the mesh members, a large effective shielding effect is obtained at the same time as a space efficiency is achieved.

' Ovan har uppfinningen beskrivits i anslutning till utföringsexempel. Naturligtvis kan ﬂer utföringsforrner och mindre förändringar och kompletteringar tänkas utan att den ursprungliga uppﬁnningstanken frångås. 5 Zo A1 -56 ä; "zf m' =z-. 4 V Sålunda är det möjligt att ”skräddarsy” nätorganens konﬁguration så att en anpass- ning till tillgängligt utrymme i anslutning till de aktuella luﬁkylda anordningarna och deras luftintag sker under iakttagande av en tryckfallsanpassning.The invention has been described above in connection with exemplary embodiments. Of course, your embodiments and minor changes and additions are conceivable without departing from the original idea of invention. 5 Zo A1 -56 ä; "zf m '= z-. 4 V Thus, it is possible to' tailor 'the configuration of the network means so that an adaptation to the available space in connection with the current cooled devices and their air intake takes place while observing a pressure drop adaptation.

' Uppﬁnningen skall således ej anses begränsad till ovan angivna uttöringsforrner utan kan varieras inom ramen för de bifogade patentkraven.The invention should thus not be considered limited to the above-mentioned forms of drying but can be varied within the scope of the appended claims.

Claims

10 15 20 25 30 526 156 s Patent Claims

1. l. Methods for maintaining efficient cooling in air-cooled devices by releasing the cooling air from particles by means of shielding mesh means arranged in connection with said devices, characterized in that the total shielding surface (4 °, 4 ”) of the mesh means (2) is adapted to expected particle quantity and desired height for adjusting pressure drop across said mesh means, the air intake (3) of said devices (1) being caused to be surrounded by hooded mesh means (4), which are designed so that a larger total shielding surface is provided if a smaller pressure drop is sought and said the effective shielding surface of the mesh means is increased by a non-planar, for example corrugated, configuration, so that the projected surface is substantially less than the effective shielding surface.

Device for maintaining efficient cooling in air-cooled devices, wherein shielding network means are arranged in connection with said devices, by means of which the cooling air is intended to be freed from particles! in that the total shielding surface (4 ", 4") of the mesh means (2) is adapted to the expected amount of particles and the desired air and arranged to surround the air inlet (3) of said devices and wherein the surface of said net member, at least in part, has a non-planar, for example corrugated, configuration so that its projected surface substantially falls below its effective shielding surface.

Device according to claim 2, characterized in that said mesh means substantially have the configuration of a truncated pyramid, the mesh means connecting to the air inlet of said devices with the top portion (4 "°) of the pyramidal configuration and thereby having a configuration widening from said light inlet.

Device according to claim 2, characterized in that said air-cooled devices (1) comprise a radiator of a motor vehicle, comprising a heat exchanger, the outer surface of which is intended for air cooling being shielded from coating particles by said mesh means.