GB2287199A - Oil filter assembly - Google Patents

Oil filter assembly Download PDF

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Publication number
GB2287199A
GB2287199A GB9502822A GB9502822A GB2287199A GB 2287199 A GB2287199 A GB 2287199A GB 9502822 A GB9502822 A GB 9502822A GB 9502822 A GB9502822 A GB 9502822A GB 2287199 A GB2287199 A GB 2287199A
Authority
GB
United Kingdom
Prior art keywords
filter
drain port
end cap
housing
filter housing
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.)
Granted
Application number
GB9502822A
Other versions
GB9502822D0 (en
GB2287199B (en
Inventor
Nigel David Feltham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AC DELCO SYSTEMS OVERSEAS CORP
Original Assignee
AC DELCO SYSTEMS OVERSEAS CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB9404814A external-priority patent/GB9404814D0/en
Application filed by AC DELCO SYSTEMS OVERSEAS CORP filed Critical AC DELCO SYSTEMS OVERSEAS CORP
Priority to GB9502822A priority Critical patent/GB2287199B/en
Publication of GB9502822D0 publication Critical patent/GB9502822D0/en
Publication of GB2287199A publication Critical patent/GB2287199A/en
Application granted granted Critical
Publication of GB2287199B publication Critical patent/GB2287199B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/001—Heating
    • 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
    • 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
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • 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
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • 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
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1064—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising drains for oil to the carter, e.g. to recover spilled oil during change of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1092—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising valves bypassing the filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
    • F01M2011/033—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means comprising coolers or heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

A filter assembly for an I.C. engine comprises a filter housing (30) including a drain port (60) and a first threaded engaging surface (34); and an end cap (40) including a second threaded engaging surface (36) engageable with the first threaded engaging surface (34) so as to secure the end cap (40) to the filter housing (30) and an elongate spigot (46). When the end cap (40) is secured to the filter housing (30), the spigot (46) closes the drain port (60). A filter element (16) is provided which includes a filter medium and a central support tube (72) for supporting the filter medium within the filter housing (30), the support tube (72) being operative to close a second drain port in the filter housing. The support tube (72) is an interference fit on a support wall (54) in the end cap (40) so that the filter element (16) can be carried in the end cap (40). <IMAGE>

Description

FILTER ASSEMBLY The present invention relates to a filter assembly.
A known type of filter assembly for filtering oil in a motor vehicle comprises a filter housing having an aperture generally disposed above the main portion of the housing. A filter element fits within the housing, which is closed by means of a cap which seals the aperture. Oil to be filtered is fed through one or more inlet ports located in a lower part of the housing and below the filter element.
After filtration, clean oil leaves the filter housing by an outlet port, also located in a lower part of the filter housing and below the filter element.
Generally, such types of filter assemblies include a drain port for draining oil from the assembly for replacement of the filter element. It is known to have a valve covering the drain port and which is opened on removal of the filter element from the housing.
Another known type of filter assembly includes an integral oil cooler for cooling incoming oil prior to filtration.
The present invention seeks to provide an improved filter assembly.
According to an aspect of the present invention, there is provided a filter assembly comprising a filter housing including a drain port and a first threaded engaging surface; and an end cap including a second threaded engaging surface engageable with the first threaded engaging surface so as to secure the end cap to the filter housing and an elongate spigot integral with the end cap, wherein when the end cap is secured to the filter housing, the spigot extends into at least part of the drain port so as to close the drain port.
The design of end cap and spigot can provide a reliable sealing of the oil filter chamber and convenient and automatic oil drainage on release of the end cap.
Preferably, the spigot is capable of sliding into at least part of the drain port. In this manner, the end of the spigot acts as a valve, avoiding the need to have a specific valve for the drain port.
In the preferred embodiment, there is provided a filter element including a filter medium and support means for supporting the filter medium within the filter housing.
Advantageously, there may be provided a second drain port including an aperture in the filter housing, wherein the support means is operative to close the second drain port when the filter element is disposed in the filter housing. The second drain port may be provided to drain oil from parts of the filter housing which cannot be drained through the first drain port. The support means of the filter element can act as a valve to the second drain port, thereby avoiding the need for a separate valve element for this drain port.
Preferably, the support means includes a central support tube operative to support the filter medium and to close the second drain port. It may be possible to use a conventional support tube in dependence upon the design and location of the second drain port, thereby avoiding the need for any new or modified components.
Alternatively, the support means includes a support disc operative to support the filter medium and to close the second drain port. Where a thin filter support tube is used, such a disc may be useful also for supporting the filter medium.
Preferably, the support means is operative to secure the filter element to the end cap. In this manner, when the end cap is removed from the filter housing, the filter element is removed simultaneously.
Furthermore, the end cap can be used both as a carrier for the filter element and as a cup for receiving oil dripping from the old filter element.
The end cap may comprise a support wall, the support means being operative to secure the filter element to the support wall with an interference fit.
It has been found that such an arrangement can provide adequate fixing of the filter element to the end cap without the need for any other fittings.
According to another aspect of the present invention, there is provided a filter assembly comprising a filter housing including a drain port, an end cap securable to the filter housing and a filter element including an annular filter medium supported around annular support means within the filter housing, the support means contacting the drain port so as to close the drain port when the filter element is disposed in the filter housing.
According to another aspect of the present invention, there is provided a combined oil filter and cooler assembly comprising a filter assembly as herein specified.
An embodiment of the present invention is described below, by way of illustration only, with reference to the accompanying drawings, in which: Figure 1 is a side elevational view in cross-section of an embodiment of filter assembly; and Figure 2 is a side elevational view, in cross-section, opposite to the view of Figure 1 of part of the oil filter assembly.
Referring to Figure 1, the embodiment of filter assembly for filtering oil in a vehicle engine shown includes an oil filter 10 and oil cooler 12 within the same cast housing 14. The housing 14 is made of a metal, in this embodiment aluminium.
The assembly includes an oil inlet for receiving oil from the vehicle engine and a plurality of outlets including a principal outlet 18 through which cooled and filtered oil leaves the filter assembly and rejoins the vehicle oil circuit.
The housing 14 of this embodiment is designed to be located in a vehicle in the general orientation shown, that is with the filter 10 above the oil inlet and outlet 18 and, in the example shown, above the cooler 12.
The oil cooler 12 is of known type and includes a cooler element 20 of generally rectangular cuboid shape and having a plurality of substantially parallel vanes 22 within which cooling fluid passes and around which hot oil is fed for cooling thereof.
The cooler element 20 includes an inlet conduit 24 coupled to a header of known form located at one end of the vanes 22 for feeding cooling fluid to the vanes 22. An outlet conduit 26 (Figure 2) similar to the inlet conduit 24 is located at the opposite end of the vanes 22 and collects cooling fluid from the vanes 22 for transfer out of the filter assembly.
Typically, the cooling fluid is water.
At the inlet end of the cooler element 20, the cooler housing includes an oil inlet port (not shown) for receiving hot oil from the engine. An oil outlet port (not shown) is located at the cooler element outlet end and communicates directly with the chamber 28 of the oil filter 10, such that in use cooled oil passes to the filter 10 for filtration.
The filter 10 includes a filter housing 30 formed as part of the assembly housing 14. The filter housing 30 is generally cylindrical and is substantially circular when viewed along its axis 32.
A threaded inner annular surface 34 is provided at the open end of the filter housing 30 and engages a complementary threaded outer surface 34 of an end cap 40.
The end cap 40 is also made of a metal, preferably aluminium or an alternative polymer material, preferably nylon. It includes an annular groove proximate its threaded surface 36 for receiving an O-ring seal 42 and an annular rib 44 for limiting the amount by which the end cap 40 can be tightened onto the filter housing 30. The outer surface of the end cap may be indexed or otherwise shaped to receive a tightening tool.
An elongate spigot 46, which is substantially cylindrical in axial cross-section, is integral with the end cap 40 and extends from the centre thereof beyond the threaded surface 36. The free end 48 of the spigot 46 is slightly smaller in axial cross-sectional diameter than the remainder thereof and has a tapered tip 50 to facilitate fitting of the end cap 40 in the filter housing 30. Proximate its tip 50, the spigot 46 includes an annular groove which houses an O-ring seal 52.
A substantially circular annular support 54 is provided in the end cap 40 substantially co-axially with the spigot 46. The support 54 includes a portion of reduced outer diameter which forms on the support 54 a shoulder 56 against which filter element 16 abuts. The portion of reduced outer diameter is tapered at its free end for facilitating the fitting of the filter element 16 on the support 54.
The filter housing 30 includes a first drain port 60 located at a lower end of a tubular wall 62 which extends into the filter chamber 28 and is coupled to the vehicle oil circuit. When the end cap 40 is fitted to the filter housing 30, the free end 48 of the spigot 46 fits within the first drain port 60 so as to close it. The O-ring seal 52 prevents any leakage between the spigot 46 and the walls of the drain port 60.
The base of the tubular wall 62 includes two steps, a first upper step 64 adjacent the tubular wall 62 and a second lower step 66 having an outer diameter greater than the outer diameter of the upper step 64.
The lower step 66 extends to the base of the filter housing 30.
A secondary drain port 68 (Figure 2) extends into the lower step 66 to an aperture at the shoulder of the lower step 66 which couples the upper and lower steps 64, 66 together. The secondary drain port 68 is coupled to an oil outlet 70 which communicates with the vehicle oil circuit.
The filter element 16 consists of a pleated filter paper of known type. The pleats extend in the longitudinal direction of the filter element 16. Each pleat has one pleat edge attached to a central support tube 72 and an opposite pleat edge forming part of the radial outer periphery of the filter element 16.
In the preferred embodiment, the central support tube 72 has a thickness substantially the same as the width of the shoulder of the lower step 66 and an inner diameter substantially the same as the outer diameter of the upper step 64. In this manner, the central support tube 72 is supported by the upper step 64 and covers the shoulder of the lower step 66, thereby also covering the secondary drain port 68.
In another embodiment, the central support tube of the filter element 16 is of smaller thickness than the tube shown in Figure 1. A support disc 74 shown in dotted outline in Figure 1 is coupled to the support tube and extends to the radial outer perimeter of the filter element 16. A lip is formed on the support disc 74 and extends over the end of the filter paper. In this embodiment, the central support tube and the support disc together block the secondary drain port 68.
In both of the above embodiments, the central support tube 16 has formed therein a plurality of apertures 78 which extend along its length.
The inner diameter of the central support tube 72 is a tight fit on the reduced diameter portion of the support 54.
As will be apparent, during normal operation, hot oil from the engine is cooled through the cooler 12 prior to passing to the filter 10.
Cooled oil passes from the cooler 12 through a conduit (not shown) which opens into the base of the filter housing 30, so as to reach the space between the cylindrical wall of the filter housing 30 and the filter element 16. The oil is then filtered, by means of pressure produced by the vehicle oil circuit, through the filter paper and passed through the apertures 78 in the central support tube 72. From the interior of the support tube 72, the oil passes into the tubular wall 62 of the filter housing 30 and to the principal outlet 18 to rejoin the vehicle oil circuit.
During normal operation, the spigot 46 blocks the first drain port 60, while the central support tube 72 and, where appropriate, the support disc 74, block the second drain port 68.
When it is desired to change the oil filter 16, the end cap 40 is unscrewed, wit the aid of a tool if necessary, so as to draw the end cap 40 gradually out of the filter housing 30. As this occurs, the filter element 16 is carried with the end cap 40, thereby gradually uncovering the second drain port 68 to allow oil still within the oil filter 10 to begin draining.
Upon further unscrewing of the end cap 40, the end of the spigot 46 is drawn out of the first drain port 60, thereby opening this drain port to drain oil remaining within the area bounded by the tubular wall 62.
The relative timing of the opening of the two drain ports 60, 68 can be adjusted by adjusting the length of the spigot 46, in particular to adjust the amount by which the spigot 46 extends into the first drain port 60.
Thus, drainage of oil from the oil filter housing 30 is automatic. Furthermore, since the filter element 16 is held on the end cap 40 as a result of the interference fit of the central support tube 72 on the annular support 54, it is not necessary to handle the dirty oil filter itself. On release of the end cap 40 from the filter housing 30, it can be inverted so as to act as a convenient filter holder and cup for receiving dripping oil from the filter element 16. The filter element 16 can then be disposed of and a new filter element 16 fitted to the annular support 54 prior to refitting the end cap 40 onto the filter housing 30.
As will be apparent from the above, the spigot 46 and the central support tube 72 or the combination of the support tube 72 and support disc 74 act as valves for the drain ports 60, 68. As a result, no separate valving units are required.
In some embodiments, the support disc 74 may by itself block the second drain port 68, for example in cases where a very thin central support tube 72 is used.

Claims (11)

Claims.
1. A filter assembly comprising a filter housing including a drain port and a first threaded engaging surface; and an end cap including a second threaded engaging surface engageable with the first threaded engaging surface so as to secure the end cap to the filter housing and an elongate spigot integral with the end cap, wherein when the end cap is secured to the filter housing, the spigot extends into at least part of the drain port so as to close the drain port.
2. A filter assembly according to claim 1, wherein the spigot is slidable into the drain port.
3. A filter assembly according to claim 1 or 2, comprising a filter element including a filter medium and support means for supporting the filter medium within the filter housing.
4. A filter assembly according to claim 3, comprising a second drain port including an aperture in the filter housing, wherein the support means is operative to close the second drain port when the filter element is disposed in the filter housing.
5. A filter assembly according to claim 4, wherein the support means includes a central support tube operative to support the filter medium and to close the second drain port.
6. A filter assembly according to claim 4, wherein the support means includes a support disc operative to support the filter medium and to close the second drain port.
7. A filter assembly according to any one of claims 3 to 6, wherein the support means is operative to secure the filter element to the end cap.
8. A filter assembly according to claim 7, wherein the end cap comprises a support wall, the support means being operative to secure the filter element to the support wall with an interference fit.
9. A filter assembly comprising a filter housing including a drain port, an end cap securable to the filter housing and a filter element including an annular filter medium supported around annular support means within the filter housing, the support means contacting the drain port so as to close the drain port when the filter element is disposed in the filter housing.
10. A filter assembly substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
11. A combined oil filter and cooler assembly comprising a filter assembly according to any preceding claim.
GB9502822A 1994-03-11 1995-02-14 Filter assembly Expired - Fee Related GB2287199B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9502822A GB2287199B (en) 1994-03-11 1995-02-14 Filter assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9404814A GB9404814D0 (en) 1994-03-11 1994-03-11 Filter assembly
GB9502822A GB2287199B (en) 1994-03-11 1995-02-14 Filter assembly

Publications (3)

Publication Number Publication Date
GB9502822D0 GB9502822D0 (en) 1995-04-05
GB2287199A true GB2287199A (en) 1995-09-13
GB2287199B GB2287199B (en) 1997-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB9502822A Expired - Fee Related GB2287199B (en) 1994-03-11 1995-02-14 Filter assembly

Country Status (1)

Country Link
GB (1) GB2287199B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309397A (en) * 1996-01-25 1997-07-30 Mann & Hummel Filter Oil filter with removable filter element
EP0839563A1 (en) * 1996-10-07 1998-05-06 Denso Corporation Fluid filter with drain valve
EP1130224A1 (en) * 1999-12-21 2001-09-05 Filterwerk Mann + Hummel GmbH Liquid filter with a cooler
EP1159998A2 (en) * 2000-05-27 2001-12-05 Filterwerk Mann + Hummel Gmbh Liquid filter
EP1174597A1 (en) * 2000-07-22 2002-01-23 Filterwerk Mann + Hummel Gmbh Assembly for a combustion engine with an oilfilter
CN105327539A (en) * 2014-08-05 2016-02-17 曼·胡默尔有限公司 Filter element comprising hollow cylindrical filter medium body and filter device
CN109252913A (en) * 2018-09-18 2019-01-22 倪岚霖 A kind of motor vehicle engine oil impurity sweep-out method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502469A (en) * 1974-12-19 1978-03-01 Daimler Benz Ag Filter casing to hold at least one filter element for cleaning lubricating oil
GB2162079A (en) * 1984-06-16 1986-01-29 Mann & Hummel Filter A filter for the lubricating oil or fuel of an internal combustion engine
US4906365A (en) * 1987-11-04 1990-03-06 Ing. Walter Hengst Gmbh & Co. Kg. Filter for cleaning lubricating oil
US5087364A (en) * 1989-09-29 1992-02-11 Carter-Hoffmann Corp. Liquid control assembly
US5098559A (en) * 1989-10-04 1992-03-24 Filterwerk Mann & Hummel Gmbh Liquid filter for the lubricating oil of an internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502469A (en) * 1974-12-19 1978-03-01 Daimler Benz Ag Filter casing to hold at least one filter element for cleaning lubricating oil
GB2162079A (en) * 1984-06-16 1986-01-29 Mann & Hummel Filter A filter for the lubricating oil or fuel of an internal combustion engine
US4906365A (en) * 1987-11-04 1990-03-06 Ing. Walter Hengst Gmbh & Co. Kg. Filter for cleaning lubricating oil
US5087364A (en) * 1989-09-29 1992-02-11 Carter-Hoffmann Corp. Liquid control assembly
US5098559A (en) * 1989-10-04 1992-03-24 Filterwerk Mann & Hummel Gmbh Liquid filter for the lubricating oil of an internal combustion engine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309397A (en) * 1996-01-25 1997-07-30 Mann & Hummel Filter Oil filter with removable filter element
FR2744171A1 (en) * 1996-01-25 1997-08-01 Mann & Hummel Filter OIL FILTER
GB2309397B (en) * 1996-01-25 2000-08-02 Mann & Hummel Filter Oil filter
EP0839563A1 (en) * 1996-10-07 1998-05-06 Denso Corporation Fluid filter with drain valve
US5902479A (en) * 1996-10-07 1999-05-11 Denso Corporation Oil filter incorporating a drain valve
EP1130224A1 (en) * 1999-12-21 2001-09-05 Filterwerk Mann + Hummel GmbH Liquid filter with a cooler
EP1159998A2 (en) * 2000-05-27 2001-12-05 Filterwerk Mann + Hummel Gmbh Liquid filter
EP1159998A3 (en) * 2000-05-27 2002-01-16 Filterwerk Mann + Hummel Gmbh Liquid filter
US6746604B2 (en) 2000-05-27 2004-06-08 Filterwerk Mann & Hummel Gmbh Liquid filter
EP1174597A1 (en) * 2000-07-22 2002-01-23 Filterwerk Mann + Hummel Gmbh Assembly for a combustion engine with an oilfilter
US6517710B2 (en) 2000-07-22 2003-02-11 Filterwerk Mann & Hummel Gmbh Structural assembly with an oil filter for an internal combustion engine
CN105327539A (en) * 2014-08-05 2016-02-17 曼·胡默尔有限公司 Filter element comprising hollow cylindrical filter medium body and filter device
CN105327539B (en) * 2014-08-05 2020-03-10 曼·胡默尔有限公司 Filter element comprising a hollow cylindrical filter medium body and filter device
CN109252913A (en) * 2018-09-18 2019-01-22 倪岚霖 A kind of motor vehicle engine oil impurity sweep-out method

Also Published As

Publication number Publication date
GB9502822D0 (en) 1995-04-05
GB2287199B (en) 1997-10-08

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