US20190160398A1 - Filter Device, Especially Liquid Filter - Google Patents
Filter Device, Especially Liquid Filter Download PDFInfo
- Publication number
- US20190160398A1 US20190160398A1 US16/199,804 US201816199804A US2019160398A1 US 20190160398 A1 US20190160398 A1 US 20190160398A1 US 201816199804 A US201816199804 A US 201816199804A US 2019160398 A1 US2019160398 A1 US 2019160398A1
- Authority
- US
- United States
- Prior art keywords
- socket
- filter
- annular
- sealing element
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000007788 liquid Substances 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000003566 sealing material Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 7
- 229920005560 fluorosilicone rubber Polymers 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 6
- 239000002283 diesel fuel Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/005—Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
Definitions
- the invention concerns a filter device, especially a liquid filter, such as a fuel filter or oil filter, according to the preamble of claim 1 .
- a filter device that is used as an oil filter or a fuel filter is disclosed in DE 197 46 752 A1.
- the filter device comprises a hollow cylindrically embodied filter element that is secured on a radially inwardly positioned support structure and is flowed through by the fluid to be purified radially from the exterior to the interior wherein the filter interior forms an axial discharge passage for the purified fluid.
- the filter element is framed by terminal disks at the end faces that have a central cutout for discharging the fluid from the filter interior.
- a sealing ring is inserted that is supported on an inner housing wall and separates the axial discharge space from the inflow side of the filter element.
- Such sealing elements are mandatorily required for a flow-tight separation of raw side and clean side.
- the invention has the object to separate with simple means and in a space-saving as well as effective way the raw side from the clean side in a filter device.
- the filter device has in a filter housing a hollow cylindrical filter element that is to be flowed through by the fluid to be purified in radial direction.
- the interior of the filter element forms an axial flow space.
- At one end face of the filter element there is a terminal disk where the sealing element is arranged.
- this sealing element is injection-molded onto an axially projecting, annular socket that is connected to the terminal disk.
- the stability of the filter device is improved because forces in the axial direction are transmitted substantially from the socket onto the filter housing.
- the sealing element is positioned between the end face of the socket and the inner wall of the filter housing; since this section of the sealing element is however usually very thin-walled, a tilted positioning of the filter device that could lead to leakage flows is not to be expected as a result of the deformation of the sealing element.
- the sealing element is comprised of an injection-moldable silicone material, in particular a fluorosilicone rubber (FVMQ) that is characterized by an excellent fuel resistance, in particular by excellent diesel fuel resistance and therefore in a special way is suitable for use in fuel filters.
- FVMQ fluorosilicone rubber
- the socket has shaped elements that contribute to an improved adhesion of the sealing material on the socket.
- These shaped elements change the surface of the socket and are embodied as projections or, according to a preferred embodiment, as cutouts in the wall of the socket. In the embodiment as cutouts, they can be distributed uniformly about the circumference of the socket.
- the sealing material will deposit on the shaped elements so that an additional resistance with respect to accidental removal of the sealing material from the socket is provided.
- the cutouts are advantageously completely filled with the sealing material so that no leakage flows through these cutouts may occur.
- the sealing material is expediently injection-molded onto the inner side, the outer side as well as the free end face of the socket so that the best possible sealing action is achieved. Even though, it is in principle sufficient to provide the sealing material only on the inner side or only on the outer side or optionally to provide the sealing material only on the end face of the socket or on a combination of end face and inner side or outer side of the socket.
- the annular socket in its simplest embodiment is a cylinder whose side walls and free end face form the support for the sealing material.
- other geometries may be provided also for the socket, for example, a socket with a cylindrically shaped section and a further section angularly extending therefrom or a socket with a slantedly extending wall that is positioned at an angle to the plane at the terminal disk.
- the sealing material may extend either about the entire inner side and outer side of the socket or, according to a further embodiment, only across a partial area of the socket, for example, on the angularly projecting section of the socket.
- two concentric sockets are provided that are spaced apart radially from one another wherein the sealing material is injection-molded onto both sockets. Since each one of the two sealing elements is provided with a sealing line, the sealing action is improved.
- the socket is advantageously embodied as a monolithic part of the terminal disk; both components can be manufactured of injection-moldable plastic material. Basically, it is however also possible to embody socket and terminal disk as two separate components that are connected to one another
- FIG. 1 a perspective view of the lower part of a filter device with a hollow cylindrical filter element whose end face is framed by a terminal disk that is provided with a central cutout for discharging the purified fluid, wherein the central cutout is surrounded by a socket onto which sealing material is injection-molded;
- FIG. 2 a section view of the filter device according to FIG. 1 in the area of the socket;
- FIG. 3 a section illustration of a further embodiment according to which two sockets concentrically arranged relative to one another are provided onto which sealing material is injection-molded, respectively;
- FIG. 4 a further embodiment in which the socket has additionally an angularly arranged section that is a support for the sealing element;
- FIG. 5 a further embodiment in which the socket is comprised of a slantedly extending wall that is formed monolithically with the terminal disk;
- FIG. 6 a section view of a filter device having two sockets concentrically arranged relative to one another and onto which sealing material is injection-molded, respectively;
- the filter devices illustrated in the Figures are suitable for filtration of liquid or gaseous fluids, in particular for filtering fuel such as diesel fuel or oil. Also, a use, for example, as an air filter is possible.
- the filter device 1 illustrated in FIG. 1 comprises a hollow cylindrical filter element 2 in a filter housing 3 wherein the filter element 2 is flowed through radially from the exterior to the interior by the fluid to be purified so that the outer wall surface represents the raw side and the axial interior in the filter element represents the clean side from where the purified fluid is discharged axially through the end face.
- the axial end face of the filter element 2 is framed by a terminal disk 4 that has a central cutout 5 that communicates with the axial interior of the filter element 2 .
- a cylindrical socket 6 is inserted that advantageously is monolithically formed with the terminal disk 4 .
- the socket 6 is a support for a sealing element 8 that is comprised of an injection-moldable material, in particular of a silicone material such as partially fluorinated liquid silicone (FVMQ) and is injection-molded onto the socket 6 .
- the sealing material is located on the outer side, the inner side and the free end face of the socket 6 and covers also completely the cutouts 7 in the wall of the socket 6 .
- the cutouts 7 have the function of shaped elements that ensure improved adhesion of the sealing material on the socket 6 .
- the selection of the sealing material depends on the fluid to be purified.
- the aforementioned material FVMQ is used that is characterized by high fuel resistance while at the same time providing excellent injection molding properties.
- the socket 6 is formed monolithically with the terminal disk 4 .
- the sealing element 8 has two contact lines: on the one hand, in the area of the free end face on the socket 6 and, on the other hand, at the transition area between socket 6 and terminal disk 4 on the side facing away from the central cutout 5 . In the area of the two contact lines the sealing element 8 has a greater wall thickness.
- a circumferentially extending reinforcement ring may be provided in the area of the seal support. This ring is positioned circumferentially below or on the seal 8 .
- high-strength sealing materials or sealing materials that have a high tear resistance are also be employed.
- a second socket 9 is provided that extends concentrically relative to the first socket 6 but in comparison to the first socket 6 has a smaller diameter. Also, the axial extension of the second socket 9 is less than that of the first socket 6 .
- the second socket 9 is also formed as a monolithic part with the terminal disk 4 as is the first socket 6 .
- the sealing element 8 is injection-molded onto the first socket 6 as well as onto the second socket 9 and extends along the inner side of the first socket 6 , on the inner and outer sides of the second socket 9 as well as in the intermediate area on the terminal disk 4 between first and second sockets 6 and 9 , forming a generally U-shaped sealing element 8 , as shown in FIG. 3 .
- the sealing element 8 at the free end faces of the sockets 6 and 9 , has a greater wall thickness, forming bulbous shaped sealing members 8 A, 8 B on the free end faces of the sockets 6 and 9 , as clearly shown in FIG. 3 .
- the wall of the first socket 6 and second socket 9 may include a plurality of cutouts 7 (see FIG. 1 ) distributed uniformly about the circumference and penetrating the wall.
- the cutouts 7 (see FIG. 1 ) have the function of shaped elements that ensure improved adhesion of the sealing material on the sockets.
- the sealing material may be located on the outer side, the inner side and the free end face of the sockets cover also completely the cutouts in the wall of the sockets, if present.
- both sealing lines are located in the area of the free end faces of the sockets 6 and 9 .
- the cylindrical socket 6 in the area of its end face is provided with a section 6 a that is radially inwardly angled at a 90 degree angle whose free end face is a support of the injection-molded sealing element 8 .
- the socket 6 that is a monolithic part with the terminal disk 4 is angularly embodied; it is positioned relative to the plane of the terminal disk 4 at an angle deviating from 90 degrees and is oriented radially outwardly.
- the sealing element 8 that is injection-molded on the socket 6 engages the end face of the socket as well as the inner side and the outer side and has a relatively complex cross-sectional geometry. Two sealing lines are formed by means of which the sealing element 8 is seal-tightly supported on a further component of the filter device.
- a second socket 9 is provided that extends concentrically relative to the first socket 6 but in comparison to the first socket 6 has a smaller diameter, as in FIG. 3 .
- the axial extension of the second socket 9 may be substantially the same as that of the first socket 6 .
- the second socket 9 is also formed as a monolithic part with the terminal disk 4 as is the first socket 6 .
- the sealing element 8 may be injection-molded onto the first socket 6 as well as onto the second socket 9 and extends along the radially outer side of the first socket 6 , on the radially inner side of the second socket 9 , and may extend on the intermediate area on the terminal disk 4 between first and second sockets 6 and 9 , forming a continuous annular sealing element 8 , as shown in FIG. 6 . Moreover, the two free end faces of the sockets 6 and 9 are covered with sealing material.
- the wall of the first socket 6 and/or the second socket 9 may include a plurality of cutouts 7 (see FIG. 1 ) distributed uniformly about the circumference and penetrating the wall. The cutouts 7 (see FIG.
- the sealing material may be located on the outer side, the inner side and the free end face of the sockets cover also completely the cutouts in the wall of the sockets, if present.
- a drain passage 14 is shown, separated by a double-concentric seal 15 from the filtered side as well as from the unfiltered side of the filter element 2 .
- the double-concentric seal 15 may be produced by a two-component method, for example, by injection molding a combination of hard and soft sealing materials.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Filtration Of Liquid (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- This application is a continuation of U.S. application Ser. No. 14/335,898, filed Jul. 19, 2014, which is a continuation of U.S. application Ser. No. 12/810,198 filed Oct. 12, 2010, which is a continuation of PCT/EP2008/067904, filed Dec. 18, 2008 designating the United States of America, and a continuation in part of U.S. application Ser. No. 12/332,612, filed Dec. 11, 2008, now U.S. Pat. No. 8,157,107. The entire disclosure of the above applications is incorporated herein by reference. Priority is claimed based on German patent application 20 2007 018 076.4 filed in Germany on Dec. 21, 2007 and German patent application 20 2007 017 614.7 filed in Germany on Dec. 14, 2007
- The invention concerns a filter device, especially a liquid filter, such as a fuel filter or oil filter, according to the preamble of claim 1.
- A filter device that is used as an oil filter or a fuel filter is disclosed in DE 197 46 752 A1. The filter device comprises a hollow cylindrically embodied filter element that is secured on a radially inwardly positioned support structure and is flowed through by the fluid to be purified radially from the exterior to the interior wherein the filter interior forms an axial discharge passage for the purified fluid. The filter element is framed by terminal disks at the end faces that have a central cutout for discharging the fluid from the filter interior. In the central cutout of the terminal disk a sealing ring is inserted that is supported on an inner housing wall and separates the axial discharge space from the inflow side of the filter element. Such sealing elements are mandatorily required for a flow-tight separation of raw side and clean side.
- The invention has the object to separate with simple means and in a space-saving as well as effective way the raw side from the clean side in a filter device.
- This object is solved according to the invention with the features of claim 1. The dependent claims provide expedient further embodiments.
- The filter device has in a filter housing a hollow cylindrical filter element that is to be flowed through by the fluid to be purified in radial direction. The interior of the filter element forms an axial flow space. At one end face of the filter element there is a terminal disk where the sealing element is arranged. According to the invention, this sealing element is injection-molded onto an axially projecting, annular socket that is connected to the terminal disk.
- With this embodiment different advantages are achieved. By injection-molding the sealing element separate assembly steps are no longer required that in an embodiment of the sealing element as its own component, in particular as a sealing ring, would be otherwise required. In the embodiment according to the invention, it is instead sufficient to injection-mold, before mounting the filter device, the sealing material onto the annular socket; subsequently, the filter element including sealing disk and socket together with the injection-molded sealing element can be inserted into the filter housing. Leakage flows caused by mounting are prevented in this way.
- Moreover, the stability of the filter device is improved because forces in the axial direction are transmitted substantially from the socket onto the filter housing. This means that the sealing element is positioned between the end face of the socket and the inner wall of the filter housing; since this section of the sealing element is however usually very thin-walled, a tilted positioning of the filter device that could lead to leakage flows is not to be expected as a result of the deformation of the sealing element.
- According to an advantageous embodiment, the sealing element is comprised of an injection-moldable silicone material, in particular a fluorosilicone rubber (FVMQ) that is characterized by an excellent fuel resistance, in particular by excellent diesel fuel resistance and therefore in a special way is suitable for use in fuel filters.
- According to a further advantageous embodiment, the socket has shaped elements that contribute to an improved adhesion of the sealing material on the socket. These shaped elements change the surface of the socket and are embodied as projections or, according to a preferred embodiment, as cutouts in the wall of the socket. In the embodiment as cutouts, they can be distributed uniformly about the circumference of the socket. During the injection molding step, the sealing material will deposit on the shaped elements so that an additional resistance with respect to accidental removal of the sealing material from the socket is provided. In case of the cutouts in the wall of the socket, the cutouts are advantageously completely filled with the sealing material so that no leakage flows through these cutouts may occur.
- The sealing material is expediently injection-molded onto the inner side, the outer side as well as the free end face of the socket so that the best possible sealing action is achieved. Even though, it is in principle sufficient to provide the sealing material only on the inner side or only on the outer side or optionally to provide the sealing material only on the end face of the socket or on a combination of end face and inner side or outer side of the socket.
- The annular socket in its simplest embodiment is a cylinder whose side walls and free end face form the support for the sealing material. However, other geometries may be provided also for the socket, for example, a socket with a cylindrically shaped section and a further section angularly extending therefrom or a socket with a slantedly extending wall that is positioned at an angle to the plane at the terminal disk. The sealing material may extend either about the entire inner side and outer side of the socket or, according to a further embodiment, only across a partial area of the socket, for example, on the angularly projecting section of the socket.
- According to yet another advantageous embodiment, two concentric sockets are provided that are spaced apart radially from one another wherein the sealing material is injection-molded onto both sockets. Since each one of the two sealing elements is provided with a sealing line, the sealing action is improved.
- The socket is advantageously embodied as a monolithic part of the terminal disk; both components can be manufactured of injection-moldable plastic material. Basically, it is however also possible to embody socket and terminal disk as two separate components that are connected to one another
- Further advantages and expedient embodiments may be taken from the additional claims, the figure description, and the drawings. It is shown in:
-
FIG. 1 a perspective view of the lower part of a filter device with a hollow cylindrical filter element whose end face is framed by a terminal disk that is provided with a central cutout for discharging the purified fluid, wherein the central cutout is surrounded by a socket onto which sealing material is injection-molded; -
FIG. 2 a section view of the filter device according toFIG. 1 in the area of the socket; -
FIG. 3 a section illustration of a further embodiment according to which two sockets concentrically arranged relative to one another are provided onto which sealing material is injection-molded, respectively; -
FIG. 4 a further embodiment in which the socket has additionally an angularly arranged section that is a support for the sealing element; -
FIG. 5 a further embodiment in which the socket is comprised of a slantedly extending wall that is formed monolithically with the terminal disk; and -
FIG. 6 a section view of a filter device having two sockets concentrically arranged relative to one another and onto which sealing material is injection-molded, respectively; - In the Figures the same components are identified with same reference numerals.
- The filter devices illustrated in the Figures are suitable for filtration of liquid or gaseous fluids, in particular for filtering fuel such as diesel fuel or oil. Also, a use, for example, as an air filter is possible.
- The filter device 1 illustrated in
FIG. 1 comprises a hollowcylindrical filter element 2 in afilter housing 3 wherein thefilter element 2 is flowed through radially from the exterior to the interior by the fluid to be purified so that the outer wall surface represents the raw side and the axial interior in the filter element represents the clean side from where the purified fluid is discharged axially through the end face. The axial end face of thefilter element 2 is framed by aterminal disk 4 that has acentral cutout 5 that communicates with the axial interior of thefilter element 2. In the central cutout 5 acylindrical socket 6 is inserted that advantageously is monolithically formed with theterminal disk 4. In the wall of the socket 6 a plurality of cutouts 7 are provided that are distributed uniformly about the circumference and penetrate the wall. Thesocket 6 is a support for asealing element 8 that is comprised of an injection-moldable material, in particular of a silicone material such as partially fluorinated liquid silicone (FVMQ) and is injection-molded onto thesocket 6. The sealing material is located on the outer side, the inner side and the free end face of thesocket 6 and covers also completely the cutouts 7 in the wall of thesocket 6. The cutouts 7 have the function of shaped elements that ensure improved adhesion of the sealing material on thesocket 6. - The selection of the sealing material depends on the fluid to be purified. For use as a diesel fuel filter, advantageously the aforementioned material FVMQ is used that is characterized by high fuel resistance while at the same time providing excellent injection molding properties.
- As illustrated in the section view of
FIG. 2 , thesocket 6 is formed monolithically with theterminal disk 4. The sealingelement 8 has two contact lines: on the one hand, in the area of the free end face on thesocket 6 and, on the other hand, at the transition area betweensocket 6 andterminal disk 4 on the side facing away from thecentral cutout 5. In the area of the two contact lines the sealingelement 8 has a greater wall thickness. In order to design the seal to be more resistant with regard to high pressure peaks, in a supplemental embodiment a circumferentially extending reinforcement ring may be provided in the area of the seal support. This ring is positioned circumferentially below or on theseal 8. There is also the possibility to employ high-strength sealing materials or sealing materials that have a high tear resistance. - In the embodiment according to
FIG. 3 , on the terminal disk 4 a second socket 9 is provided that extends concentrically relative to thefirst socket 6 but in comparison to thefirst socket 6 has a smaller diameter. Also, the axial extension of the second socket 9 is less than that of thefirst socket 6. The second socket 9 is also formed as a monolithic part with theterminal disk 4 as is thefirst socket 6. The sealingelement 8 is injection-molded onto thefirst socket 6 as well as onto the second socket 9 and extends along the inner side of thefirst socket 6, on the inner and outer sides of the second socket 9 as well as in the intermediate area on theterminal disk 4 between first andsecond sockets 6 and 9, forming a generallyU-shaped sealing element 8, as shown inFIG. 3 . Moreover, the two free end faces of thesockets 6 and 9 are covered with sealing material. The sealingelement 8, at the free end faces of thesockets 6 and 9, has a greater wall thickness, forming bulbous shaped sealingmembers sockets 6 and 9, as clearly shown inFIG. 3 . The wall of thefirst socket 6 and second socket 9 may include a plurality of cutouts 7 (seeFIG. 1 ) distributed uniformly about the circumference and penetrating the wall. The cutouts 7 (seeFIG. 1 ) have the function of shaped elements that ensure improved adhesion of the sealing material on the sockets. The sealing material may be located on the outer side, the inner side and the free end face of the sockets cover also completely the cutouts in the wall of the sockets, if present. - There are a total of two sealing lines between the sealing
element 8 and the filter housing or the components of the housing; both sealing lines are located in the area of the free end faces of thesockets 6 and 9. - In the embodiment according to
FIG. 4 , thecylindrical socket 6 in the area of its end face is provided with a section 6 a that is radially inwardly angled at a 90 degree angle whose free end face is a support of the injection-moldedsealing element 8. - In the embodiment according to
FIG. 5 thesocket 6 that is a monolithic part with theterminal disk 4 is angularly embodied; it is positioned relative to the plane of theterminal disk 4 at an angle deviating from 90 degrees and is oriented radially outwardly. The sealingelement 8 that is injection-molded on thesocket 6 engages the end face of the socket as well as the inner side and the outer side and has a relatively complex cross-sectional geometry. Two sealing lines are formed by means of which thesealing element 8 is seal-tightly supported on a further component of the filter device. - Similar to the embodiment of
FIG. 3 , referring now to the embodiment ofFIG. 6 , on the terminal disk 4 a second socket 9 is provided that extends concentrically relative to thefirst socket 6 but in comparison to thefirst socket 6 has a smaller diameter, as inFIG. 3 . InFIG. 6 the axial extension of the second socket 9 may be substantially the same as that of thefirst socket 6. The second socket 9 is also formed as a monolithic part with theterminal disk 4 as is thefirst socket 6. The sealingelement 8 may be injection-molded onto thefirst socket 6 as well as onto the second socket 9 and extends along the radially outer side of thefirst socket 6, on the radially inner side of the second socket 9, and may extend on the intermediate area on theterminal disk 4 between first andsecond sockets 6 and 9, forming a continuousannular sealing element 8, as shown inFIG. 6 . Moreover, the two free end faces of thesockets 6 and 9 are covered with sealing material. The wall of thefirst socket 6 and/or the second socket 9 may include a plurality of cutouts 7 (seeFIG. 1 ) distributed uniformly about the circumference and penetrating the wall. The cutouts 7 (seeFIG. 1 ) have the function of shaped elements that ensure improved adhesion of the sealing material on the sockets. The sealing material may be located on the outer side, the inner side and the free end face of the sockets cover also completely the cutouts in the wall of the sockets, if present. Adrain passage 14 is shown, separated by a double-concentric seal 15 from the filtered side as well as from the unfiltered side of thefilter element 2. The double-concentric seal 15 may be produced by a two-component method, for example, by injection molding a combination of hard and soft sealing materials.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/199,804 US20190160398A1 (en) | 2007-12-14 | 2018-11-26 | Filter Device, Especially Liquid Filter |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007017614U DE202007017614U1 (en) | 2007-12-14 | 2007-12-14 | oil filter |
DE202007017614.7 | 2007-12-14 | ||
DE202007018076.4 | 2007-12-21 | ||
DE202007018076U DE202007018076U1 (en) | 2007-12-21 | 2007-12-21 | Filter device, in particular liquid filter |
US12/332,612 US8157107B2 (en) | 2007-12-14 | 2008-12-11 | Filter with bayonet coupling to cover |
PCT/EP2008/067904 WO2009080706A1 (en) | 2007-12-21 | 2008-12-18 | Filter device, especially liquid filter |
US81019810A | 2010-10-12 | 2010-10-12 | |
US14/335,898 US10137390B2 (en) | 2007-12-21 | 2014-07-19 | Filter device, especially liquid filter |
US16/199,804 US20190160398A1 (en) | 2007-12-14 | 2018-11-26 | Filter Device, Especially Liquid Filter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/335,898 Continuation US10137390B2 (en) | 2007-12-14 | 2014-07-19 | Filter device, especially liquid filter |
Publications (1)
Publication Number | Publication Date |
---|---|
US20190160398A1 true US20190160398A1 (en) | 2019-05-30 |
Family
ID=40545964
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/810,198 Abandoned US20110017657A1 (en) | 2007-12-21 | 2008-12-18 | Filter Device, Especially Liquid Filter |
US14/335,898 Active 2030-06-12 US10137390B2 (en) | 2007-12-14 | 2014-07-19 | Filter device, especially liquid filter |
US16/199,804 Abandoned US20190160398A1 (en) | 2007-12-14 | 2018-11-26 | Filter Device, Especially Liquid Filter |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/810,198 Abandoned US20110017657A1 (en) | 2007-12-21 | 2008-12-18 | Filter Device, Especially Liquid Filter |
US14/335,898 Active 2030-06-12 US10137390B2 (en) | 2007-12-14 | 2014-07-19 | Filter device, especially liquid filter |
Country Status (5)
Country | Link |
---|---|
US (3) | US20110017657A1 (en) |
EP (1) | EP2222382B1 (en) |
DE (1) | DE202007018076U1 (en) |
PL (1) | PL2222382T3 (en) |
WO (1) | WO2009080706A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021127130A1 (en) * | 2019-12-18 | 2021-06-24 | Cummins Filtration Inc. | Protuberant compressible filter seal design utilizing undercuts |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007056589A2 (en) | 2005-11-09 | 2007-05-18 | Donaldson Company, Inc. | Seal arrangement for filter element; filter element assembly: and, methods |
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- 2008-12-18 WO PCT/EP2008/067904 patent/WO2009080706A1/en active Application Filing
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2014
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2018
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Also Published As
Publication number | Publication date |
---|---|
US10137390B2 (en) | 2018-11-27 |
WO2009080706A1 (en) | 2009-07-02 |
EP2222382B1 (en) | 2014-10-01 |
PL2222382T3 (en) | 2015-03-31 |
US20110017657A1 (en) | 2011-01-27 |
DE202007018076U1 (en) | 2009-05-07 |
US20150014239A1 (en) | 2015-01-15 |
EP2222382A1 (en) | 2010-09-01 |
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