DE6600271U - FILTER CARTRIDGE FOR GASES AND LIQUIDS, IN PARTICULAR FOR THE SUCTION AIR FROM COMBUSTION MACHINES, COMPRESSORS AND OTHER AIR-SUCTION MACHINES. - Google Patents

Description

PATENT ADVERTISER BIPL, -ING. EIDENEIER, 7 STUTTGART, NECKABSTR.

280 October

Applicant for Filterwerk Mann & Hummel GmbH, Ludwigsburg, Hindenburgstrasse 37 - 43

A 11 O61 '- VSS 533 A 11 062 - VSS 533

Filter insert for gases and liquids, especially for the intake air of internal combustion engines, Compressors and other air-sucking machines.

For filtering the intake air from Erenste-aftmaschineia, Compressors and other air-sucking machines are known paper filter inserts that have an annular, parallel have paper filter bodies folded to the ring axis * which has on both front sides cover disk.tr ,, from j

at least one of which is ring-shaped, with these filter cartridges dia Abdecl: slices extend over the whole Ring cross-section of the paper body.

In order to save material, w is? S already the star-shaped folded paper filter body au the inner folds hollow "space by sticking their rare parts on a narrow Randabsohnitt closed and used Abdeckeoheiben that only a narrow inner section Hing '

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grip the filter body. This is where the seal takes place in the filter housing through axial clamping. Accordingly, the filter insert must provide the necessary for a sufficient seal can absorb axial compressive forces. This leads to difficulties inabaßondero with long filter inserts, because the individual folds tend to be below the axial Snap off pressure. This can be counteracted by attaching compression-resistant central tubes} but it does so again an © undesirable increase in price. '

Also known are filter inserts of the » Kind in which the paper filter body is at one of the front ends through a voi disk and on his

, page is covered by an annular disc which extends radially beyond the plan of the paper filter body. > Here, the ring disc with its exposed outer edge clamped between housing parts. The paper filter : · The body is therefore not exposed to any axial clamping forces. ·

The invention is based on the object of a paper filter insätζ, in which the star-shaped folded The paper filter body in the filter housing does not have any axial clamping forces must be exposed and the cost of materials is reduced to a minimum. · ·

According to the invention, this object is achieved in that in the latter embodiment, the two. Cover

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. · Only open the front sides of the paper filter body

. Cover the narrow section of the ring and on which the full

'ν ■ · ■' the disc with the inner face and on the die

• Washer-exhibiting end face the outer fold hollow

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. Side part «closed on a narrow edge section

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By the design according to the invention is also the Material savings due to only partial covering of the forehead N Seiton of the paper filter body still achieved the advantage '. , 'that both for the entry and the exit of the '* Medium to be filtered each have a surrounding area and a

Front side are available. In this way, the flow resistance can be kept optimally low. In the opposite. In addition, this occurs with axially clamped inserts , ".. * filtering medium both on the outer circumference and on both . '- · .- ■ ·' · .. Front sides in and only on the inner circumference of the filter body the end. ·

The filter insert is advantageously designed in such a way that the cavity enclosed by the paper filter body faces the . Ring-shaped cover expanded. Then the full • disc can be particularly small * The is also available . standing space well used, because aer Drain cross-section aunlmat on the outflow side.

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Regarding the state of the art, it should also be mentioned that ring-shaped, radially flowed through filter inserts with paper filter bodies arranged on a conical surface are known. Furthermore. , it is known per se for folded paper filter bodies. .on one face the inner and on the other face ■ \ the outer fold cavities by gluing the folds on. a narrow margin "to close (French patent specification 9252 628). ·"

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The invention is illustrated below with reference to in the drawing illustrated embodiments explained. Show it"

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a filter insert according to the invention »

^! . FIG. 2 shows the filter insert of FIG. 1 in plan view, ^#> 'with the full disk partially broken away,

,. ■ &'·"■·.'. Fig. 3 shows a section along line III - III

■ '. - '■ ·; * ■■ the Flg. 2,

4 shows a filter insert with a cone-I ! ". · Paper filter body arranged in a jacket,

i · ■ "Fig. 5 ait a filter insert in a rectangular shape

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v, - partially absent full openwork pane.

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'Fig. 6 shows a cross-section through deai, filter unit

Ij - ". * 'Sentence of Fig. 5-

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The filter cartridges shown and described below are intended for intake air filters. In a similar way . "". However, filter cartridges for liquid fiX can also be used.

be designed

•. The filter housing provided in FIG. 1 has a h & utoen- ■. Shaped upper part 1 with an inwardly folded edge 2: Q · '· - and let closed by a base 3. In ^{FIG. 1,} the housing part 1, the suction pipe 4 ends. From the bottom 3 opens the leg ·. . air cut % off.

'. In the filter housing is a filter insert 6 with a •. circular paper filter body 7 arranged. The latter is made from a strip of paper that is folded parallel to the eyelet. On the upper end face is the '"* Papierfilterkorper 7 by a .Vollscheibe 8 and at the wnte- -. * ■, reindeer end face covered by an annular disc 9 VoIl- • ·· disc 8 closes the of the paper filter body 7 umschlcise.. «

'»' 'Cut a cavity 10. The ring washer 9 on the other StIm-:

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j side releases the flow to the clean air connection 5 and

^! extends radially outward over the base of the papi & r-

j. ■ filter body 7 also "In the filter housing the filter insert is axially clamped to the exposed outer edge of the annular disc 9 between" era edge of the housing 2 and UEM bottom 3 »; The clamping force is increased by the usual hooks (not shown)

i fasteners applied. , \

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The filter body 7 is closed in a special way at its two end faces. On the end face 11, the solid disk 8 covers only a narrow inner ring section, and the inner fold cavities 12 are closed by gluing their side parts together on a narrow edge section (at 13 »Pig-3) at least up to the cover. Avf the end face 14, the Blsgssfeeibg 9 dsskt only one ^. narrow outer ring section, and the outer column cavities 15 are closed by gluing their side parts together on a narrow edge section (at 16 Pig. 3) at least up to f _v towards the cover. The two covers therefore overlap the filter insert only on narrow ring sections. ■. ■ ■ I

The air to be filtered flows through the filter insert - |

generally radially from the outside to the inside ·. You can In the outeru Fold hollow spaces 15 both on the outer circumference and. * on the end face 11 of the paper filter body having the solid disk 8 enter, while for the exit of the clean air, the inner circumferential surface and the end face 14 to To be available.

As can be seen, the paper filter body 7 is through the sealed clamping of the filter insert no axial Exposed to compressive forces. Only a narrow section of the ring of the * end faces 11 and 14 of the paper filter body 7

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opaque disks 8 and 9 are by default small and

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accordingly require little material. The favorable distribution the surface for the entry and exit of the medium to be filtered, namely one circumferential surface in each case and an end face, allows the flow resistance to keep optimally low "

. . · - ~ _t . ■ The filter insert 6a according to Pig. 4 differs from jj O ^; .. · that of Fig. 1 in that the Fäpierfiltericbodyex * \ •. ·. .7a is arranged on a truncated cone jacket, namely the-

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'' ■ ·. "" Kind, that the central cavity tOa after the Hing- ■ • ·. . . , disk 9a having end face expanded. The full 'j

.. disc 8a can by this measure particularly small from ge · "· ^ι the washer is clamped 9a leads, be the hook-shaped housing part, against the edge / '*, lcann to Save, and other place... the conical shape of the Papierfilterkörpera 7a be adapted.

^ ... ^{Bsi the} filter insert 21 of the Flg. 5 and 6 is the paper ·,. filter body 22 is cuboid. Ss are each- · '· wells 2VJQi fold packages 23 and 2 * 1 · opposite, the filter paper of both fold packages being glued together on the narrow sides of the cuboid at 25 to form a ring. Otherwise, the same configuration features are used as in the execution guide.

game according to Fig. i. available. The full soleplate provided above . . 26 overlaps the end face 11 of the pilot body 22 only a narrow inner ring section, wKhrond dlo provided below Ring disk 27 the other end face 14

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'covers the body on a narrow outer ring section. In the same way as in the previous exemplary embodiments are covered by the solid disk 26 End face 11 of the paper filter body lie inner fold cavities and at .the end face covered by the ring shell each 27 the outer folds by gluing them together Side parts on a narrow section, each aiinöesten until SsT AbdesKuTxg closed = The Quaderfuriaige Filter- '· Use is particularly favorable where »where there is little space a large filter area is to be accommodated. ! The one from · , the cavity 10 enclosed by the paper filter body • the Aiistrit'cssfcimseifce having the annular disk 27 . widened in a wedge shape. ·

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Claims (2)

• · · M ■ t · Il <♦ f * t · t Ϊ "· t 1 Λ · t '» I S », * t» ■ I * 1 ■ r 9 A 11 061/62 ^ VSS 533 Claims * 1. Filter insert for gases and liquids. apply, in particular for the intake air, of internal combustion engines, compressors And other air-sucking machines * with a ring-shaped, Paper filter folded parallel to the ring axis. 'body, which on its one front side by a full. j "* · disc and on its other face by a ring j "disk is covered, which extends radially outwards over j I · ■ ... extends the G ^ and i / lß of the paper filter body out, '■''·. · Characterized in that the. two cover disks V. · ■ · (8,8a, 2β and 9,9a, 27) the end faces ^ (11 and 14) of the. . Paper filter body (7, 7a, 22) only on narrow ring ab- ^: »/ '·. cover the cuts and on the end face (11) having the full disk (8,8a, 26) · '''* the inner fold hollow spaces ®? . ■ r. (12) and on the di © washer (9 * 9a, 27), the outer fold cavities (15) 'in on t I t Λ. . known catfish by sticking their side together. . · '· * Parts walked on a schsjalen edge section (13 or 16) are. 2. Filter insert naoh Claim 1, characterized in, that the cavity enclosed by the PaplerfiltorkiEJrpor (7a) (10a) also have after the dio ring disk (9a) - .. 'the * front side extended *. ,.