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
  • 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
• • 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
  • B01D35/147—Bypass or safety 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
  • B01D35/14—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
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
  • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
  • F02M37/42—Installation or removal of filters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
  • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
  • F02M37/48—Filters structurally associated with fuel valves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/04—Supports for the filtering elements
  • B01D2201/0415—Details of supporting structures
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/30—Filter housing constructions
  • B01D2201/301—Details of removable closures, lids, caps, filter heads
  • B01D2201/305—Snap, latch or clip connecting 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

Definitions

• the invention relates to a liquid filter according to the preamble of claim 1.
• Such liquid filters are known as oil filters in practice. They can also serve as fuel filters or as coolant filters in the area of an internal combustion engine.
• the respective liquid is usually conducted by means of an oil, fuel or water pump in the circuit, and at a standstill of the internal combustion engine, the corresponding liquid pump is usually turned off, especially if it is mechanically driven by the internal combustion engine.
• the return check valve ensures that, when the liquid pump is at a standstill, the liquid does not run out of the filter housing, for example due to gravity, for example in the case of an oil filter it runs back into the crankcase of the internal combustion engine. Rather, the liquid is retained in the filter housing, even at standstill of the internal combustion engine, so that when restarting the internal combustion engine, the liquid-carrying flow channels can be filled as quickly as possible without the liquid pump first
• the return check valve is provided on the raw side of the filter, so that it reliably at standstill of the internal combustion engine or the liquid pump, namely, when the return valve is in its closed position, the unfiltered raw liquid in the filter holds back.
• the invention has for its object to improve a generic liquid filter to the effect that this allows the simplest possible installation of the filter and even under tight space dimensions, with correspondingly small dimensions of the filter, the easy arrangement of a return check valve on the liquid filter allows.
• the invention proposes, in other words, not to arrange the return check valve on the raw side of the filter, ie where the return of the liquid to be prevented, but to arrange in a surprising way, the return check valve in the clean side flow channel.
• the innovation is based on the consideration that the return check valve allows such a tight closure of the clean-side flow channel that a pressure equalization, for example in the form of a vent, does not occur to the filter interior.
• a pressure equalization would be a prerequisite for the liquid to flow out of the interior of the filter, for example to flow back into the crankcase of the internal combustion engine in the case of an oil filter.
• the arrangement of the return check valve in the clean-side flow channel has several advantages: On the one hand, if the filter design provides a central clean oil outlet, the return check valve can be easily provided in this centrally located clean oil outlet, so basically the accessibility of this mounting point easier and is easier than with a laterally brought flow channel. This is especially true in the case of very small sized filters, the diameter of which is severely restricted
• the filter base can be integrally formed on such a crankcase.
• the accessibility to radial flow channels in the filter base is made more difficult, so that the arrangement of the non-return valve would not be possible there or only with great difficulty.
• the assembly of the return check valve would be done in such an application by the vehicle or engine manufacturer.
• a return check valve can be easily arranged in the region of the filter base.
• liquid filter can also easily filter with very small structural dimensions such.
• B. diameters of significantly less than 80 mm, together with a return check valve can be realized, for example, filter with a housing diameter of about 60 mm.
• the arrangement of the non-return valve can be advantageously provided within the filter insert, for example, since the space for the filter insert must be provided anyway: with a radial flow through the filter insert from outside to inside an inner drain line for the filtered liquid is provided, and in this flow direction anyway a so-called inner dome is provided in the filter insert, ie a stiffening element, which prevents collapse of the filter surface under the pressure and temperature conditions prevailing in operation.
• this indoor dome can also carry the return check valve.
• this support dome can advantageously carry the return check valve, wherein the support dome may for example be fixedly provided on the housing of the filter, if necessary by means of a screwing, Verclipsung or the like can be detachably attached to the housing.
• the support dome may be provided on the lid of the filter and regardless of whether the support dome is provided on the lid or on the filter housing, a detachable attachment or holders ng of the support dome may be provided on the housing or lid or the support dome may be of the same material be formed or formed the lid or the housing.
• Fig. 6-9 further embodiments in which the return valve each in different
• the oil filter 1 has a housing 2, which can be closed by a cover 3, wherein the cover 3 is screwed to the housing 2 in a conventional manner and is sealed by a circumferential seal 4 relative to the housing 2.
• a filter insert 5 has a filter surface 6 in the form of a paper folding filter element and an upper end plate 7, which has latching hooks 8, which cooperate with cover-side latching hooks 9, so that on this latching or clip connection of the filter element 5 on the lid 3 is releasably held ,
• the filter insert 5 furthermore has a lower end disk 10 and an inner dome 11 in the inner space enclosed by the filter surface 6.
• the housing 2 is formed as part of a larger base component, wherein in this base member an inlet channel 15 is provided for crude oil, an outlet channel 16 for pure oil and a Drain channel 17, which allows emptying of the housing 2 during maintenance.
• FIG. 1 shows that the functional elements of the filter, like the filter insert 5, have different seals and valves together with the filter
• Cover 3 form an assembly of interconnected components, so that this assembly can be handled together in total and can be used in the housing 2.
• the housing 2 as part of a larger socket assembly can therefore be made by a manufacturer of an internal combustion engine and to complete the filter 1 functional, it is not necessary on the part of this engine manufacturer to install functional elements of the filter in the socket before the supplied by the filter manufacturer complete assembly in the Socket is used.
• Fig. 2 shows the filter 1 in the installed, that is inserted into the socket state and that at standstill of the internal combustion engine.
• the seal 4 seals the lid 3 with respect to the housing 2 and a seal 18 prevents liquid flow from the interior of the filter 1 along the clean oil tube 12 into the outlet channel 17.
• a spring 19, which is supported on the one hand on the housing 2 and the base and on the other hand on a peripheral collar 20 of the clean oil pipe 12 is compressed in this installed state.
• a movable valve body 21 of the lower mouth of the clean oil pipe 12 is tight.
• the valve body 21 is pressed by a spring 22 against the clean oil pipe 12. If during operation of the internal combustion engine, the filter 1 is traversed by oil and then the internal combustion engine is switched off, so flows on the one hand due to the seal 18 no oil from the filter interior in the drain passage 17. On the other hand flows no pure oil, which is radially within the filter surface 6 within of the inner dome 11 or in the clean oil tube 12, from the filter 1, since the return check valve 14 is closed.
• Fig. 3 shows the filter 1 in the operating condition of the internal combustion engine.
• the basic arrangement of the individual components is comparable to Fig. 2, only the return valve is opened by the oil pressure, in which the valve body 21 has been moved against the action of the spring 22 down and so a flow connection between the clean oil pipe 12 and the outlet channel 16 is created.
• Fig. 4 shows the filter 1 during the performance of maintenance work:
• the lid 3 is partially unscrewed from the housing 2.
• the seal 4 no longer seals between the cover 3 and the housing 2 so that air can enter the interior of the housing 2.
• the clean oil pipe 12 has been raised relative to its apparent from Figs. 2 and 3 operating position in a maintenance position.
• the clean oil pipe 12 is located with a plurality of latching hooks 23 on an undercut in the housing 2 and the base, so that a further upward movement of the clean oil pipe 12 is obstructed relative to the position shown in FIG. 4.
• Filter insert 5 causes a locking connection between the clean oil pipe 12 and the lower end plate 10 of the filter element 5 is released, so that the clean oil pipe 12 remains in the housing 2 of the filter 1, while the filter element 5 can be removed together with the lid.
• the locking connection between the clean oil pipe 12 and the lower end plate 10 of the filter element 5 is released, so that the clean oil pipe 12 remains in the housing 2 of the filter 1, while the filter element 5 can be removed together with the lid.
• Pure oil pipe 12 and lower end plate 10 is designed to be relatively weak. It is used only during the initial installation of the filter 1 to introduce the apparent from Fig. 1 function module in the filter housing 2 and thereby all the functional elements of the filter as a common handle
• the latching between the upper end disk 7 and the cover 3 is made considerably stronger by the latching hooks 8 and 9, so that the filter insert 5 reliably remains on the cover 3, if this cover 3 is removed from the housing 2.
• the lid 3 has, towards its lower, open end, a conically radially outwardly expanding internal clearance. As a result, a tilting mobility of the filter insert 5 is made possible, which, overcoming the latching forces between the
• Latch hook 8 and 9 causes the filter element 5 can be released from the lid 3 by the filter element 5 is pressed at a fixed lid 3 obliquely to a surface, for example to the wall of a trash can. In this way, the removal of the filter cartridge 5 is possible without having to touch the soiled filter cartridge 5.
• the filter element 5 as one of its components on the illustrated inner dome 11.
• a so-called support dome 24, which is separate from the rest of the filter element 5, can be used to support the filter element.
• surface 6 may be provided, as shown in Figs. 6 to 9 and known in similar embodiments from practice.
• FIG. 6 shows that the support dome 24 can be fixed captive in the housing 2 by means of the latching hooks 23, while, however, can be mounted longitudinally movably in the housing 2. Further, FIG. 6 shows a filter bypass valve 27 in the upper portion of the support dome 24, the movable valve body of the filter bypass valve 27 abutting a valve seat formed by the upper end disk 7 of the filter cartridge 5.
• the filter bypass valve 27 ensures a kind of emergency supply of lubricating oil and opens when the flow of oil through the filter surface 6 is not sufficient, for. B. in cold, viscous oil or heavy contamination of the filter surface. 6
• Fig. 7 shows that the support dome 24 fixed to the lid 3 and thus can be movable relative to the housing 2, namely, when also removed from the housing 2 during removal of the lid 3.
• FIGS. 8 and 9 show that the support dome 24 in the housing
• a support dome 24 may be releasably secured, such as. B. in the embodiments of FIGS. 8 and 9, in which he from the
• Housing can be unscrewed, or it can be the same material with the rest of the component, ie z. B. the housing 2 or the lid 3, be prepared.
• the support dome 24 may, for example, be fixed to the housing 2 in that, similar to the filter insert 5 of FIG. 1 to 5 - the support dome is connected to the clean oil pipe 12, or it may be provided a one-piece component which forms the support dome and the clean oil pipe.
• FIGS. 8 and 9 show that the pure oil pipe 12 does not have to be designed as a separate component, but can also be formed by the housing 2.
• Fig. 9 also shows that the valve body 21 of the return valve 14, unlike the other embodiments does not have to be held in a separate component, but can be supported on the housing 2 via the spring 22.
• a molded part 26 is pressed into the clean oil pipe 12, which forms the valve seat, which the valve body 21 rests by the pressure of the spring 22.
• the return check valve 14 is not supported by a support dome fastened to the filter housing, but by a comparable, but as part of, the support dome
• Filter insert designed so-called indoor dome, which also serves as a housing-fixed support dome to support the filter surface 6.
• the comparatively short support domes 24 shown in FIGS. 7 and 8 could be modified to be configured as an inner dome, ie as part of the respective filter insert 5.
• the support dome 24 is shown as a separate component. Deviating from the illustrated embodiments, however, can also be provided that a support dome together with the housing z. B. is made in the form of a casting as a single component. Alternatively, the support dome - also deviating from the illustrated embodiments - together with the
• Cover can be produced as a single component.

Landscapes

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

Applications Claiming Priority (3)

Publications (1)

Family

ID=38537247

Family Applications (1)

Country Status (8)

Families Citing this family (19)

Family Cites Families (11)

• 2007
  • 2007-05-04 DE DE202007006385U patent/DE202007006385U1/de not_active Expired - Lifetime
  • 2007-05-10 EP EP07722418A patent/EP2015790A2/de not_active Withdrawn
  • 2007-05-10 BR BRPI0712046-0A patent/BRPI0712046A2/pt not_active IP Right Cessation
  • 2007-05-10 CN CNA2007800227155A patent/CN101472623A/zh active Pending
  • 2007-05-10 WO PCT/DE2007/000869 patent/WO2007128306A2/de not_active Ceased
  • 2007-05-10 US US12/299,826 patent/US20090314697A1/en not_active Abandoned
  • 2007-05-10 JP JP2009508128A patent/JP5111494B2/ja not_active Expired - Fee Related
  • 2007-05-10 KR KR1020087029658A patent/KR20090026274A/ko not_active Ceased

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events