SE539590C2 - Oil filter arrangement comprising a spin-on filter and a filter mount - Google Patents

Abstract

ii) ifš 18 ABSTR/ïitfßi* 'liite iiiventioii reíates to an oii fiitei airaiigeinent (Ii) eoinprising a spin~on filter (4) and a fiiteiinount (6), Where, vvhafn the spin~on fiiter (4) is nionnted on the iiiter nfttiniit (6) in an opeiatingposition (A) *where at least one primary gaskift (ÉG) i aififaiftged to provide a fliiiti tight seaibetweifift the iiitei inount (6) and the spin~on iiiteif housing (iii), att ieast one oii iniet opening (26,28) arranged on ”the spin~on fiitei (4) is anfanged to he in fltiiii oonneeftion *with at least one oiistiuifee tipening (36, 38) arranged on the tiitifi* nionnt (6) and at least one oii ontiet opening (24)arranged on the spin~on tiitiëi* (fit) is aifiangifd to he in tiuid aftiiiiiifetioiït *with att ifszisit one oiidistribution opening (49) aififaiftged on the fiiter inount (6), Where the tiitei inount (ti) tíirthaëi*eoniprises at least one oii diainatge opening (42) anfanged, in the operating position (A), sifaiedtiiiffioiii the iiiteritii" (44) tititne oii iiiter (4) iiy the at least one piiinairy gasket (BG) and zirrangedt,in the operation position (få) ztnti in a iirainiiig position (B), seaied oti°froin the ambientatinospiiere (46) iijtf at ieast one seeondaryf gasket (48), and ztrranged, in the :training position (B),in tinid connection *vtfith the interior (44) of the oii tiitei' (4). The inventiiiri also reiates to avehicle (54) etnnprisirig oii filter aiiangerneiit (2) and an eiigiiie (56) ooniprisiiig oii iiiter arrangenierit (2) and a Spiti-on iiiter. (inge i)

Description

The present invention relates to an oil filter arrangement comprising a spin-on filter and a filtermount, and to an engine comprising an oil filter arrangement, and to a vehicle comprising an oil filter arrangement, and a spin-on filter for an oil filter arrangement.

BACKGROUND OF THE INVENTION AND RELATED ART Spin-on filters comprising a filter body defining a mouth, a filter element disposed in the filterbody, and a cover covering the mouth are widely used in e. g. engines and gear-boXes as e. g. oilfilters or fuel filters etc. due to their simple yet reliable design and their easy attachment, removaland replacement. The cover comprises at least one inlet opening and at least one outlet openingfor the fluid to be filtered by the filter, where the fluid to be filtered is arranged to pass throughthe filter element on its way from the inlet to the outlet. The spin-on filter further comprisesmeans for attaching the filter to a filter mount on the device utilizing the filter, which meanscomprise a thread on the filter which thread is arranged to be brought into engagement with acorresponding thread on the filter mount. Usually, the spin-on filter comprises a first centralopening in the cover, the opening having an internal thread to be brought into engagement with acorresponding external thread on the filter mount. The corresponding filter mount thus usuallycomprises a corresponding central tubular member comprising said external thread on its outerperiphery. The cover further comprises at least one further opening, usually a number of furtheropenings, arranged on the cover between the central opening and the radial periphery of thecover. The filter mount comprises corresponding members, e.g. at least one opening and apossible cavity connecting said opening to the further openings in the cover when the spin-onfilter is mounted onto the filter mount. lf the central opening is the outlet opening from the spin-on filter, the further openings are inlet openings. The above threads together form a sealpreventing fluid from passing therethrough. To prevent fluid from leaking out between the filter mount and the filter, at least one gasket is arranged between the filter and the filter mount radially outside of said further holes. Said gasket is usually arranged fixed to the filter, but may also be a part separate therefrom. ln modern vehicles it is preferred to use compact designs to save space, which can result in adesign where a spin-on oil filter ean-notlt be arranged to be mounted to a correspondingfilter mount vertically from below, i.e. with the openings in the filter cover facing upwards, butinstead has to be mounted e. g. vertically from above the same or horizontally from the side of thesame, i.e. at an angle to the first mentioned position. This means that the oil in the oil filter willnot remain therein when the engine is turned off but will instead begin to slowly flow back to theoil reservoir, e.g. an oil trough, via e. g. the crankcase, the flow speed being determined e.g. bythe temperature of the oil. Thus, when a spin-on oil filter on a vehicle with such a filter mountdesign is to be replaced by removing the old filter and mounting a new filter in its place, oil willleak out if the filter is removed soon after that the vehicle has been driven to the garage as the oilin the oil filter takes some time to empty to the oil reservoir, more time if the vehicle has beenparked for a time outside the garage waiting for its turn to be serviced. This will lead to oil possibly leaking out on the ground, the mechanic, or on possibly sensitive parts of the vehicle.One way used for speeding up the emptying process mentioned above is to puncture the spin-onoil filter housing using e.g. a screw-driver before removal which results in air entering the oilfilter facilitating the emptying of oil therefrom.

US 5,817,232 A and US 2011/0303604 A1 show spin-on filters.

SUMMARY OF THE INVENTION The primary object of the present invention is to provide an improved oil filter arrangement comprising a spin-on oil filter and a filter mount.

This is obtained by the oil filter arrangement, the spin-on oil filter and the filter mount as set out in the appended claims.

Thus, the above mentioned object of providing an improved oil filter arrangement comprising aspin-on oil filter and a filter mount is achieved for an oil filter arrangement Where the filter mountcomprises at least one oil drainage opening arranged, in the operating position, sealed off fromthe interior of the oil filter by the at least one primary gasket and arranged, in the operationposition and in a draining position, sealed off from the ambient atmosphere by at least onesecondary gasket, and arranged, in the draining position, in fluid connection With the interior ofthe oil filter, the oil filter of the oil filter arrangement thus being able to be drained faster beforereplacement. The spin-on filter mount further comprise at least one oil drainage opening locatedradiallv outside said at least one oil source opening and said at least one oil distribution opening.Herebv it is possible to disengage a spin-on filter With a secondarv gasket With no or reduced oilleakage. lf the primary gasket begins to leak in the operating position, the leaking oil Will bedirected back to the oil reservoir via the return opening by that the secondary gasket preventsleaks to the ambient atmosphere. Thus a further advantage is achieved by that the engine is prevented from being emptied of oil.

Further, the objects of providing an engine comprising a filter arrangement and to a vehiclecomprising a filter arrangement are achieved for an engine and a vehicle and a method,comprising an inventive oil filter arrangement as mentioned above, and a spin-on filter for an oil filter arrangement.

According to one embodiment an oil filter arrangement comprising a spin-on filter and a filtermount is provided. When the spin-on filter is mounted on the filter mount in an operatingposition at least one primary gasket is arranged to provide a fluid tight seal between the filtermount and the spin-on filter housing. Further, at least one oil inlet opening is arranged on thespin-on filter be in fluid connection With at least one oil source opening arranged on the filtermount and at least one oil outlet opening is arranged on the spin-on filter to be in fluid connectionWith at least one oil distribution opening arranged on the filter mount. ln the arrangement thefilter mount comprises at least one oil drainage opening arranged, in the operating position,sealed off from the interior of the oil filter by the at least one primary gasket and arranged, in theoperation position and in a draining position sealed off from the ambient atmosphere by at least one secondary gasket, and is further arranged, in the draining position, in fluid connection With the interior of the oil filter.

According to one embodiment, the oil filter arrangement comprising a spin-on filter and a filtermount comprises at least one secondary gasket arranged integrated With the at least one primary gasket to one unit.

According to one embodiment, the oil filter arrangement comprising a spin-on filter and a filter mount comprises at least one flexible secondary gasket.

According to one embodiment, the oil filter arrangement comprising a spin-on filter and a filtermount comprises at least one secondary gasket having a central inner opening having an inner diameter smaller than the outer diameter of the spin-on filter housing.

According to one embodiment, the oil filter arrangement comprising a spin-on filter and a filtermount comprises at least one secondary gasket arranged to be pressed against the filter mount While undergoing flexible deformation When the spin-on filter is in an operating position or in a draining position.

In accordance with some embodiments the at least one oil drainage opening is located in a top portion and with the opening thereof in the same direction as the at least one oil source openingand at least one oil distribution opening. In accordance with some embodiments the at least oneoil drainage opening is located in a an outer side wall of the spin-on mount and with the openingthereof aXially displaced from the at least one oil source opening and at least one oil distribution opening .

Further adVantageous features will be apparent from the detailed description below.

The inVention will now be described in more detail below with reference to the appended drawings which illustrate preferred embodiments of the devices according to the inVention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure la shows schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to a first embodiment of the inVention in an operating position, Figure lb shoWs schematically a View of a spin-on filter according to a first embodiment, Figure 2 shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to figure la in a draining position, Figure 3a shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to a second embodiment of the inVention, Figure 3b shoWs schematically a View of a spin-on filter according to a second embodiment, Figure 4 shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to figure 3a in a draining position, Figure Sa shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to a third embodiment of the inVention, Figure Sb shoWs schematically a View of a spin-on filter according to a third embodiment, Figure 6 shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to figure Sa in a draining position, Figure 7a shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to a fourth embodiment of the inVention, Figure 7b shoWs schematically a View of a spin-on filter according to a fourth embodiment.

Figure 8 shoWs schematically a cross-section of an oil filter arrangement comprising a spin-on filter and a filter mount according to figure 7a in a draining position, and Figure 9 shoWs a View of a chassis for a Vehicle, e.g. a commercial Vehicle, e.g. a truck or a bus, comprising an engine, comprising an oil filter arrangement comprising a spin-on filter and a filter mount.

DESCRIPTION OF PREFERRED EMBODIMENTS The same reference numerals are being used for similar features in the different draWings.

Figure 1a shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-onfilter 4 and a filter mount 6 according to a first embodiment of the invention in an operatingposition A and arranged on a device to Which the spin-on filter 4 is to be attached duringoperation of the system containing the fluid 8 to be filtered by the spin-on filter 4, Where the spin-on filter 4 comprises a spin-on filter housing 10, the latter comprising a filter body 12 defining amouth 14 and further possibly comprising a cover 16, Where the spin-on filter 4 further comprisesa filter element 18 disposed in the spin-on filter housing 10. The spin-on filter 4 is typicallygenerally cylindrical and can be rotated around a central aXis (the dashed line in Fig. la). Thespin-on filter 4 is mounted on the corresponding filter mount 6 during operation, in thisembodiment by that the spin-on filter 4 comprises an internal thread 20, arranged to be broughtinto engagement With a corresponding external thread 22 on the filter mount 6 by rotation of the spin-on filter 4 around the aXis of the spin on filter 4. ln this embodiment, the cover 16 comprises at least one inlet opening and at least one outletopening for the fluid 8 to be filtered by the spin-on filter 4, but it is possible to arrange some orall of these openings on the filter body 12 instead if the mouth 14 is of such narroW dimensionsthat a cover 16 is not present. ln this embodiment, the central opening is the outlet opening 24 ofthe spin-on filter 4, and a number of inlet openings 26, 28 are arranged in the cover 16 radially r outside of the central opening 24 in the cover 16. ln operation, When fluid 8 is carried through the spin-on filter 4, the fluid 8 is usually under apressure higher than the ambient pressure P outside E of the filter mount 6 and the spin-on filter4. The above corresponding threads 20, 22 of the spin-on filter 4 and the filter mount 6 together form a seal preventing fluid from passing therethrough, thus forcing all of the fluid 8 floWing (see dashed arrows in figure 1) through the spin-on filter 4 to pass through the filter element 18. Atleast one primary gasket 30 is arranged between the spin-on filter housing 10 and the filter mount6 in order to prevent fluid 8 from leal gasket 30.

A spin-on filter 4 may comprise one primary gasket 30 or multiple, preferably coaXially arranged,primary gaskets. Here is shown one primary gasket 30 only which in case of multiple primarygaskets is to be interpreted to represent all primary gaskets 30. The primary gasket 30 is in thisembodiment shown arranged aXially X on the spin-on filter 4, but could also in anotherembodiment be arranged radially r on the spin-on filter (see e. g. the embodiment shown in figures 7-8).

The oil filter arrangement 2 comprises a spin-on filter 4 and a filter mount 6, where, when thespin-on filter 4 is mounted on the filter mount 6 in an operating position A (the positionschematically shown in figure 1) where at least one primary gasket 30 is arranged to provide afluid tight seal between the filter mount 6 and the spin-on filter housing 10, at least one oil inletopening 26, 28 arranged on the spin-on filter 4 is arranged to be in fluid connection with at leastone oil source opening 36, 38 arranged on the filter mount 6 and at least one oil outlet opening 24arranged on the spin-on filter 4 is arranged to be in fluid connection with at least one oildistribution opening 40 arranged on the filter mount 6, where the filter mount 6 furthercomprises at least one oil drainage opening 42 arranged, in the operating position A, sealed offfrom the interior 44 of the oil filter 4 by the at least one primary gasket 30 and arranged, in theoperation position A and in a draining position (see figure 2), sealed off from the ambient atmosphere 46 by at least one secondary gasket 48, and arranged, in the draining position (see figure 2) in fluid connection with the interior 44 of the oil filter 4. By this design, the oil 8 in theinterior 44 of the oil filter 4 of the oil filter arrangement 2 can thus be drained through thedrainage opening 42 in the filter mount 6 to such a degree that the oil spill from the oil filter 4 isminimized when the oil filter 4 is disengaged from the filter mount 6, this regardless of in whichspace orientation (with the openings 24, 26, 28 in the oil filter 4 facing upwards, or downwards orat some position therebetween) the oil filter 4 is positioned when mounted on the filter mount 6 atthe time the oil filter 4 is to be removed from the filter mount 6. This is achieved by firstlyturning the oil filter 4 from the operating position A to a draining position B, thereafter waitingfor oil to flow out from the interior 44 of the oil filter 4 in the draining position B, and finallyturning the oil filter 4 from the draining position B until the oil filter 4 is disengaged from the filter mount 6. ln this embodiment, the at least one secondary gasket 48 is arranged to the spin-on filter 4 in amanner of a “ring”. The at least one secondary gasket 48 is preferably, at least somewhat,flexible. The preferred fleXibility of the at least one secondary gasket 48 allows for press and sealagainst a surface 50 of the filter mount 6 when the at least one secondary gasket 48 arranged onthe filter housing l0 is pressed against the filter mount 6 while undergoing some flexibledeformation. The at least one secondary gasket 48 is preferably arranged to be pressed against thefilter mount 6 while undergoing flexible deformation when the spin-on filter 2 is in the operating position A or in the draining position B. ln this embodiment, the at least one secondary gasket 48 is integrated with the at least oneprimary gasket 30 to one unit, the parts of which unit can be of the same material or differingmaterials depending e. g. on the flexibility and other properties desired for the different parts thereof. ln Figure lb a view from the side of the spin-on filter 4 of Fig. la is shown. As is seen in Fig lb,the cover l6 may e.g. be a substantially circular ring-shaped object arranged outside ofand about the filter element l8 as shown in the figure, but other suitable shapes, such as e.g. thecommonly used circular wave-shape (not shown), are also possible for the cover l6. The secondary gasket 48, here integrated with the primary gasket 30, is arranged radially outside the primary gasket 30. The secondary gasket 48 can be generally rotationally symmetrical. Thesecondary gasket 48 provides a sealing between the spin-on filter and the filter mount 6. ln thisembodiment the primary gasket 30 and secondary gasket 48 are located with essentially no aXialdisplacement on the spin-on filter. The primary gasket 30 is arranged to provide a sealing to thetop part of the filter mount 6 in an aXial direction of the spin-on filter. The secondary gasket 48 isarranged to provide a sealing to the inner lateral of an outer wall 50 of the filter mount 6 to prevent oil leakage during mounting of the spin-on filter 4.

Figure 2 shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-onfilter 4 and a filter mount 6 according to figure 1 in a draining position B. As can be seen in thefigure when comparing with figure 1, when the spin-on filter 4 is mounted on the filter mount 6in an operating position (see figure 1) where at least one primary gasket 30 is arranged toprovide a fluid tight seal between the filter mount 6 and the spin-on filter housing 10, where atleast one oil inlet opening 26, 28 arranged on the spin-on filter 4 is arranged to be in fluidconnection with at least one oil source opening 36, 38 arranged on the filter mount 6 and at leastone oil outlet opening 24 arranged on the spin-on filter 4 is arranged to be in fluid connectionwith at least one oil distribution opening 40 arranged on the filter mount 6, where the filtermount 6 further comprises at least one oil drainage opening 42 arranged, in the operating position(see figure 1), sealed off from the interior 44 of the oil filter 4 by the at least one primary gasket30 and arranged, in the operation position (see figure 1) and in a draining position (a positionschematically shown in figure 2), sealed off from the ambient atmosphere 46 by at least onesecondary gasket 48, and arranged, in the draining position (a position schematically shown in figure 2) in fluid connection with the interior 44 of the oil filter 4.

Figure 3a shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-onfilter 4 and a filter mount 6 according to a second embodiment of the invention in an operatingposition A. This embodiment differs from the one shown in figure 1a in that the at least one secondary gasket 48 is arranged “bowl shaped”. ln Figure 3b the spin-on filter is seen from the side. As is seen in Figure 3a and 3b, the secondary gasket 48 is formed to follow the outer side of the filter housing for a distance thereof and 11 comprising a outer lip provided radially outside of the portion following the outer side of thefilter housing for closing a gap between the filter housing 10 and the filter mount 6 duringmounting of the spin-on filter 4. As is seen in Figure 3b, the secondary gasket 48, here integratedwith the primary gasket 30, is arranged radially outside the primary gasket 30. The secondarygasket 48 comprises a curved portion arranged to follow the lower part of the outer side of thespin-on filter. The secondary gasket also comprises a lip arranged in a radial direction from thecurved portion to contact the surface 50 of the filter mount 6. The secondary gasket 48 therebyprovides a sealing between the spin-on filter and the filter mount 6. ln this embodiment theprimary gasket 30 and secondary gasket 48 are located with some aXial displacement on the spin-on filter. The primary gasket 30 is arranged to provide a sealing to the top part of the filter mount6 in an aXial direction of the spin-on filter. The secondary gasket 48 is arranged to provide asealing to the inner lateral of an outer wall 50 of the filter mount 6 at some aXial distance from the primary gasket 30 to prevent oil leakage during mounting of the spin-on filter 4.

Figure 4 shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-on filter 4 and a filter mount 6 according to figure 3 in a draining position B.

Figure 5a shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-onfilter 4 and a filter mount 6 according to a third embodiment of the invention in an operatingposition A. This embodiment differs from the one shown in figure 1 in that the at least onesecondary gasket 48 is arranged separate from the at least one primary gasket 30, i.e. they areseparate units, the parts of which units can be of the same material or differing materials depending e.g. on the flexibility and other properties desired for the different parts thereof. ln this embodiment, the at least one secondary gasket 48 preferably has a central inner opening52 having an inner diameter, at least somewhat, smaller than the outer diameter of the spin-onfilter housing 10, the rim of the inner opening 52 of the at least one secondary gasket 48 thusbeing pressed against the outer surface of the spin-on filter housing 10 thus effecting an effective seal between the secondary gasket 48 and the outer surface of the spin-on filter housing 10. ln Figure 5b the spin-on filter is seen from the side. As is seen in Figure 5a and 5b, the secondary 12 gasket 48 is formed as a separate gasket, separate from the primary gasket 30. As is seen in Fig5b, the secondary gasket 48, is arranged radially outside the primary gasket 30. The secondarygasket 48 is generally formed by a lip arranged in a radial direction to contact the surface 50 ofthe filter mount 6. The secondary gasket 48 thereby provides a sealing between the spin-on filter4 and the filter mount 6. ln this embodiment the primary gasket 30 and secondary gasket 48 arelocated with some aXial displacement on the spin-on filter. The primary gasket 30 is arranged toprovide a sealing to the top part of the filter mount 6 in an aXial direction of the spin-on filter.The secondary gasket 48 is arranged to provide a sealing to the inner lateral of an outer wall 50 ofthe filter mount 6 at some aXial distance from the primary gasket 30 to prevent oil leakage during mounting of the spin-on filter 4.

Figure 6 shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-on filter 4 and a filter mount 6 according to figure 5 in a draining position B.

Figure 7a shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-onfilter 4 and a filter mount 6 according to a fourth embodiment of the invention in an operatingposition A. This embodiment differs from the one shown in figure 5a in that the at least oneprimary gasket 30 is arranged radially r, not aXially X, on the spin-on filter 4, and in that the at least one oil drainage opening 42 is arranged radially r, not aXially X, on the filter mount 6. ln Figure 7b the spin-on filter is seen from the side. As is seen in Figure 7a and 7b, the secondarygasket 48 is formed as a separate gasket, separate from the primary gasket 30. As is seen inFigure 7b, the primary gasket 30 is arranged in a lateral direction to provide a sealing between theouter side of the spin-on filter housing and a first part of a filter mount surface. The secondarygasket 48 is arranged aXially displaced in relation to the primary gasket 30. The primary gasket30 and secondary gasket 48 are generally formed by lips arranged on the outer surface of thespin-on filter housing and eXtending in a radial direction to contact different portions of thesurface 50 of the filter mount 6. The primary gasket 30 is arranged to provide a sealing to theinner lateral of an outer wall 50 of the filter mount 6. The secondary gasket 48 is arranged toprovide a sealing to the inner lateral of an outer wall 50 of the filter mount 6 at some aXial distance from the primary gasket 30 to prevent oil leakage during mounting of the spin-on filter 13 Figure 8 shows schematically a cross-section of an oil filter arrangement 2 comprising a spin-on filter 4 and a filter mount 6 according to figure 7 in a draining position B.

Figure 9 shows a view of a chassis for a vehicle 54, e.g. a commercial vehicle, e. g. a truck or abus, comprising an engine 56, comprising an oil filter arrangement 2 comprising a spin-on filter 4and a filter mount 6, e. g. by that the engine 56 or some other part of the vehicle 54 such as e.g. agear box or an aXle, etc., comprises an oil filter arrangement 2 comprising a spin-on filter 4 and afilter mount 6 according to one embodiment mentioned above. The body of the vehicle 54 is not shown for reasons of clarity regarding the examples of possible uses of the oil filter arrangement 2.

The invention thus also relates to a vehicle 54 comprising oil filter arrangement 2 and an engine 56 comprising oil filter arrangement 2.

Referring to Figures 1-8+¿ ln the in the operation position A and in a draining position B of the oil filter arrangement 2, theat least one oil drainage opening 42 is arranged radially r outside of the oil inlet and oil outletopenings 26, 28; 24, the secondary gasket 48 is arranged radially outside of the primary gasket 30, and the secondary gasket 48 is arranged between the filter housing 10 and the filter mount 6.

The primary 30 and secondary 48 gaskets may be mounted on the filter 4 at manufacture of thefilter, i.e. the filter 4 may comprise the primary 30 and secondary 48 gaskets. Referring now tofigures 1-8, the invention thus also relates to a spin-on filter 4 for an oil filter arrangement 2, theoil filter arrangement 2 comprising a filter mount 6 on which the spin-on filter 4 is arranged to bemounted, the spin-on filter 4 comprising a spin-on filter housing 10 and further comprising atleast one primary gasket 30 which is arranged to provide a fluid tight seal between the filtermount 6 and the spin-on filter housing 10 when the spin-on filter 4 is mounted on the filter mount6 in an operating position A, the spin-on filter 4 further comprising at least one oil inlet opening 26, 28 arranged to be in fluid connection with at least one oil source opening 36, 38 arranged on 14 the filter mount 6 and at least one oil outlet opening 24 arranged to be in fluid connection with atleast one oil distribution opening 40 arranged on the filter mount 6 when the spin-on filter 4 ismounted on the filter mount 6 in the operating position A, where the at least one primary gasket30 is arranged, in the operating position A, to seal off at least one oil drainage opening 42arranged in the filter mount 6 from the interior 44 of the oil filter 4, the spin-on filter 4 furthercomprising at least one secondary gasket 48 which, in the operation position A and in a drainingposition B, is arranged to seal off the at least one oil drainage opening 42 from the ambientatmosphere 46, and which, in the draining position B, further is arranged to enable fluid connection between the at least one oil drainage opening 42 and the interior 44 of the oil filter 4.

The material for the secondary gasket 48 may e.g. be natural rubber, synthetic rubber, foamed rubber, metal, etc. other materials having the preferred flexibility. The secondary gasket 48 has toshow some stiffness in order to maintain its desired shape, as it is exposed to pressures existing ine.g. an engine crank case in normal use. The primary gasket 30 can e. g. be made of nitrile rubber, etc.

The secondary gasket 48 may be a reusable part or a disposable article.

The features of the embodiments discussed above may be combined in further ways than those eXplicitly described in the embodiments above. E.g., the secondary gasket 48 of figures 5-8 could be integrated with the primary gasket 30 to one unit as shown in figures 1-4.

Claims (1)

1. li) ifš k.)'Jr .1 CLiAlhiiS I i. (J: Oil filter arraiigenieiit (2) eoinnrising a spin-on tilter (4) and a tilter rnonnt (6), tifhere, xyhenthe spin~on filter (4) is nionnted on the filter niount (6) in an operating position (A) Where atieast one priniary gasket (30) is arranged to provide a iluid tight hetwveeii the. tilter rnount(ti) and *tiie spin~on filter housing (iii), at least one oii iniet opening (26, 28) airangeti on thespiii-oii tiiter (4) is zirrangeti to he in ilnid connection vvith at least one oi i so :tree riiaeiiing (36,38) arrangeti on tiie tilter nionnt (6) and at lea/st :ine oil ontlet opening (24) arrangerl on thespiii-oii tiiter (4) is zirrangeti to he in tinid connection vvith at least one oil distributionripening (49) zirrangeti on the. tilter niount (ö), eharaeteriztëd in, that the. tiiter iniount (o) further eonipristës at least one oil drainage tipening (42): <,:'>f"f i' in the operating position (fi), seaied ottliïorri the iiiterioi' (44) of the oil 'filter (4) hythe at least (me ririniary' gasket (30) artrit zirrariged, in the operation position (få) and in adraiiiirig position t B), sealed ott* iinrn the arnhieiit atniiisgçiliere (46) hy at least one secondarygasltet (48), artrit arranged, iti the tirairiing position (B), in tiaid connection with the interior (ti) state att inta (4), Oil tiiter arrangenierit aeeortliiig to eiaini i, charaeterizeti in, that the at least one seeoiitlary gasltet (48) i arranged iiitegiateti tvøitii the at least one ririniary' gasket (30) to one (unit. Oil iiitei' arrangernent according to eiaini i or 2, eharaeterized in, that the at least onesecondary gasket (48) is iiexihie, Oil iiitei' arrangernent according to eiaini eharaeterized in, that least one secondary gaslret(48) has a central inner operiing ( 52) liaifing an inner diameter srnailer than the otrter diameter of the spin~on filter housing (iii) Oil tiiter arrangenient aceordiiig to one of olaiins l to 4, eliaraeterizeti in, that the at leastone secondary gaslret (48) is arranged; to he iiressetl against the tilter inonnt (ti) Whileiindergoiiig flexible deformation When the spin~on tilter (2) is in the oiieratiiig position (A) or in the drainiiig position (B). lll >--"-(J: ll). ll, l4i 16 Oil filter arrangeinent ateeordiiig to one of elaiirrs l to S, eharaeterizeil in, that the spin-onfilter housing ( ltl) eonrtïirises a filter body' (_ lll) detining a rnonth (lfil), and that the spiii-oii filter (4) further eornprises a filter elernent ( lå) clisposed in the spin-on filter housing (lll), Oil filter arrangerniërit aecording to :ine otelairns l to o, eliaraeterizerl in, thzit the spirit-tili filter hoiising (l (l) further eornprises a itovei' (l6), Oil filter arrangernerit according to elaiins 7, eliaraeterizetl in, that the cover ( lo) etinrprisesat least one inlet opening (26, 2%) arid at least one oiitlet opening (24) for the fluid (S) to he tiltererl hy the spin~on lilter (ti), Oil filter arrangenrent aeerirding to one of itiainis l to å, eharaetiërizrtd in, that the spin~ontilter (4) is arrarigeii to he niounted on the eorresprariding filter nionnt (6) “hy that the spin-onfilter (4) eornprises an interrial thread (ÉZÜ) arranged to he hirought into en gagerneiit *With a corresponriing external tlireati (22) on tlie filter nionnt (6). Oil iiltei' ztrrangerrient aeeordirig to one of elaiiris l to 9, eharaeterized in, that the piirnary gasket (39) is zirrangeti zixiallfy' (X) or radiallyfs (r) on the sIoiri-ori filter (4). Oil iiltei' ztrrangerrient aeeordirig to one of elaiiris l to lt), eharaeterized in, that the at leastone oil draiiiage opening (42) is arranged radially' (r) outside of the oil iiilet and oil ontletopenings (26, ZF; 24) in the operation position (A) and in the draiiiiiig position (B) of the oil filter arrangeinent (2). . Oil filter arrangeinent according to one of claiins l to ll, eharaeterized in, that the secondary gasket (48) is arranged raclially' outside of the primary* gasliïet (fitl) in the operation position (A) and in the tlraiiiing position (B) of the oil filter arrangeirreiit (2). , Oil filter arrangeinent ateeortliiig to one of elainis l to ll, eliaracterized in., that and the secondary' gashet 48 is arrangetl hetweeii the filter housing lt) and the filter rnount (i in the operation position (A) and in the tlraining riosition (B) of the oil filter arrangeineiit (2), lïngiiie, ehairaeterizeel in, that it eornprises an oil filter arrangernent (Z) aecording to one of clairns l to l3. 5. Xfehicie, charactefizeai m., thai: it compriscs an ß ~:_ according to §æ~.:..-\<_=>_šï~cÅain1__Å__Ä w* _' _ _ .-;\ M1... 4.: ._ n.,_ _ Om ,, ,._._._._,.,. _.....___.-.x....,« -.»_ .xxxx-x-flxl .x v m -~ ~-~ -x- M. x-q -._-.~ .--.- .~ ~'~-x«.~-~-x.;xx~ xx-x-x-xrw. .- . 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' ' Vi flcïx . .en fr» _ l i «, an ~ n i n i n-~, n- <-~, n ._~-. ~n ,~;«,-~_n.-.\<-«.-\-_\ . ~n.-.__n_. ( _. _ __n,-r,in..,n_..ni. i n _ _ , kn __~_,n __ n___ ,. n___ , .«___,._._ , ni.n__ ,___. _._( .WNh\ v-“nnn « _.__,f \= ~._ t n\ \\_ C wflwïis w-í ert-_, _.,^'~'Y\n __n n. n n-._~n_ _ _ n in n _. n ..,-._,._..- i n .-.__\_...__..~.,_, ( . ___.,_ ___ w. _ m, _ _ _ _ ,. ,. ,. , _ _ w. 4 __. .wn 'n »tt-s fw-n» - t ~--*.«-._-s- ~. _t.-\~.~\- m-.n _ v-ufi-n- f- .aöh-i-W *- i . .- *_ V. t_~“.__.,n~~~n-~_- ~-~_\_-> m» if. ~«- »vi - «~ - «,-.-~-~__. .fl.se n.- k l n ^ >_ :J nAI \I_\I 3,) n \_ Å n .IJ n__^ äæ) nF. \.v~ ~\.'\I_\ \»lfn) n :nä n\l ~ « n\.v}.n_\n\ nsw nsw \,' n une-ng q . \ nAnv/.k din). x! n'_\~ \v!/ .knvnifh n \.~ I n- ^ \f _\ _! \I}_ \.v) n.\n-! 35 J._ . . _ _. . (_ .t _, _ x _ ~ -f-.nin-fr» -.__ m . i v-ent- .snål-s ~. ~~ -nt- f» -,n .win-W -_\ va. - t i- .ni .~ wfw-l- um -nfin-s _«-~-.~\.' »_ JA: n.'\v_'.\~.'\».'« in). \sf näe!! \.~ Lßlmmx nlhnvs- ^ n'\ näøn), Xi ,n nAß J n» :J in). \.~ ß n n}_n\f \.I_\Ä \ \v.i.l\l \ . Alin). kLnnv X» :J '_\~ Lnß Lät*._ H _ , _., _ _ _. . . _ . \ __ ~- .w .a .i n- o. _ i _. Mn . ._ ., .. . n . ,.- , .~ - . .vi n: n. n n» , n x nn- i \ ..n~n,;_ ~n~,n»\ n n n .I n_~_: :,n_~ n.« ni n nunnan, nninw n; n n _ __- un: »nu __- ;___ tn_-.:_-.i,n, *v nimni, na. _~,n.«~.nin)n n,-n.~.n.« vi nM .- w _ «_- - ,_ ,_.~.-_ ~_.~-. -fl »WW-vn .-\ -v-t» .-n.-._,n_. Wu -.n-n- t» ~ - + .iL-n .__ \. \. \a., .«___n_-¿.) i: t w. -_ n n the» nednonhn sann, _. .» _.t__n, n, _ _._nn,i__n=,_ av., a... _MM- _ _. . _- _ _. ,n- -. _ » - ,. ,. ,_ ._.,~ _. _-\ "m1 ( ._~._\ vn., _.. m -q-v Q s, . a fn-n »Min-rv -.\-_,___...t+ _\.-n--.~« ~\« +- .~_~ \- .-n~- ,n_1_»_.~_.\~ “- i M(v w nan! n\-'.\\~' nv .l nlnhuksnßsß n,(\ \-n/ n, .\)_\!_n .- .i n I n n_\,\v_\ ß nxn; n-.\n_\n- »l-nv J .- _! \ä,\!_n :ie n-\- n-knß I .- .k nvxwtnnß nn/ ns~ .s~ .n\ _-.- - mššpih-on filter (4) for aii oil tilter arrahgeriieot (2), the oil filter arrarigenieiit (2)eorriprising a filter' rrioiint (o) oh vvhicli the spiii~oh filter (4) i arraiigeil to he rhounted, tliespin-oli filter (4) ooiriprisirig a spin-on filter housing (lll) aritl furtlier ooiriprisirig at least oneivrirriary' gasket (30) 'vifhieh is airarigecl to provide a fliiid tight seal betweeii the filter' rhount(e) and the spin-on filter housing (till) ivlieii the spin-oli tilter (4) is iriounted on the filter'inouiit (ti) in an iipeiratiiig position (A), the spin-on filter (A4) further cornprisiiig at least oneoil iiilet opening (26, 28) arraiiged to he in fluid connection ivitli at least one oil sourceopening (šti, 38) arranged oii the filter mount (ti) and at least oiie oil outlet opening (24)arraiiged to lie iri fluid connection ivitli at least oiie oil tlistrihutitiri 'ipeniiig (ßlíl) arrarigetl ohthe filter iiiouiit (6) iifheii the spin~on filter (4) is irioiirited; on the filter riiouiit (6) in theoperatiiig position (A), eliaraeterizeil iii, that tlie at least one iiriniary gasleet (30) is arrarigetl,in tlie operatiiig position (A), to seal off at least one oil (lraiiiage opening (42) arrarigetl iii the filter mount (o) if: *i (4) further eoiriprisiiig at least one secondary gasliet (48) vvliieli, iii the operation position (A) and iii a drainiiig position (B), is arrangetl to seal off the at least orie oil draiiiage opening (42) 19 froni the anibiont atniospncrc (46), and xvhich, in the draining position (B), further is aïrangodio enable iihiid connection botvvccii tim at icast one oil drainagc opening (42) and the interior (44) of the oii iiiltcf (4).