EP0401471B1 - Ansaugluftfilter für Brennkraftmaschinen - Google Patents

Ansaugluftfilter für Brennkraftmaschinen Download PDF

Info

Publication number
EP0401471B1
EP0401471B1 EP90104168A EP90104168A EP0401471B1 EP 0401471 B1 EP0401471 B1 EP 0401471B1 EP 90104168 A EP90104168 A EP 90104168A EP 90104168 A EP90104168 A EP 90104168A EP 0401471 B1 EP0401471 B1 EP 0401471B1
Authority
EP
European Patent Office
Prior art keywords
housing
bearing member
intake air
sealing
air filter
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.)
Expired - Lifetime
Application number
EP90104168A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0401471A1 (de
Inventor
Volker Ernst
Arthur Klotz
Rudolf Leipelt
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.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel GmbH
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
Application filed by Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Priority to AT90104168T priority Critical patent/ATE74404T1/de
Publication of EP0401471A1 publication Critical patent/EP0401471A1/de
Application granted granted Critical
Publication of EP0401471B1 publication Critical patent/EP0401471B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners

Definitions

  • the invention relates to an intake air filter for internal combustion engines according to the preamble of claim 1.
  • an air filter for intake air filtering with an essentially cylindrical housing which has a raw air inlet which is arranged tangentially on the housing and where a filter insert is located in this housing, which is flowed through radially.
  • the housing itself can be connected to a cylindrical intake air collector via a bayonet lock.
  • a safety cartridge in this intake air collector, which should prevent dirt and dust from entering the intake air nozzle when changing the filter insert.
  • a seal between the safety cartridge and the filter insert takes place in that, after the bayonet catch engages, there is an axial displacement of the filter insert in the direction of the safety cartridge, through which the end face of the filter insert comes into contact with the end face of the safety cartridge.
  • This axial displacement is with a on the end wall of the Adjustment screw arranged housing, which exerts an axial movement on the end plate of the filter insert.
  • a disadvantage of this known device is that there must be a very large amount of free space around the housing for installing and removing the filter insert.
  • the invention is therefore based on the object of providing an intake air filter for internal combustion engines which enables the filter insert to be exchanged in a simple manner even in confined spaces.
  • a major advantage of this solution is the fact that an axial movement of the housing is not necessary when installing or removing.
  • the housing When the housing is connected to a corresponding contact part, the housing is introduced from above in a direction that runs essentially parallel to the sealing surface on the contact part and, in order to avoid a shear movement that could act on the sealing element when inserting the housing, this housing spread from the system part at a slight axial alignment angle. This spreading takes place up to the position at which the sealing element and the sealing surface face each other concentrically.
  • the housing can be tilted and then clipped onto the system part.
  • a pot-shaped housing is provided, the unfiltered air flowing radially through a filter cartridge.
  • This filter cartridge carries the sealing element in the form of a sealing ring on its annular end disk facing the system part.
  • This annular end plate can also be provided with guide vanes. This creates an axial cyclone that improves dust separation.
  • the housing has two sliding shoes which are guided along in the sliding guides when the housing is inserted into the connection region of the system part and brought into the corresponding position.
  • the slide guides are designed so that the slide shoes in the correct position specify a precisely defined pivot point for the housing, so that tilting or moving the housing when connecting to the system part is not possible.
  • a particularly advantageous embodiment of the invention is that two spacers are provided on the housing. These two spacers are arranged outside the sealing area of the housing and stabilize the insertion movement of the housing into the connection position. If the distance between the spacer and sliding shoes is chosen as large as possible, then there is also no risk of an undefined tilting movement. The housing is thus positively guided in all directions during installation and removal, so that neither an incorrect connection of the housing to the system part nor damage to the sealing ring is possible.
  • a further embodiment of the invention provides for a handle to be arranged on the housing.
  • this can have a centering lug which is inserted between centering surfaces.
  • a safety cartridge is arranged in the system part.
  • This safety cartridge prevents dust or dirt from entering the clean air area when changing the filter cartridge.
  • the end plate of the safety cartridge advantageously forms the sealing surface on which the sealing ring of the filter cartridge is placed.
  • the housing If the housing has been positioned after changing the filter cartridge, then the housing must be attached to the system part. This is done in that the sliding shoes are supported on the sliding guide and at the same time exercise the function of a holding device. It is therefore sufficient if one or two hook fasteners are attached to the side opposite the sliding shoes, so that three or four holding devices are formed on the circumference of the housing.
  • the intake air filter according to Figure 1 consists essentially of two elements.
  • a housing part or system part 10 is fixedly arranged on a mounting wall 11.
  • a specific installation space is specified for the entire intake air filter and is delimited by the line 43 shown in broken lines.
  • a safety cartridge 15 is located within the housing part 10. This safety cartridge prevents dirt from penetrating into the intake air side when the filter cartridge 13 is replaced.
  • Both the housing part 10 and the housing 12 are cup-shaped.
  • a first guide and fastening element for the housing 12 is a sliding guide 16.
  • This sliding guide 16 has a funnel-shaped shape and is directly connected to the housing part 10.
  • the housing part 10 is expediently a plastic injection molded part, which includes the sliding guide.
  • the housing 12, which is also a plastic injection molded part, is provided with a sliding block 17.
  • this sliding shoe first has the task of limiting the movement of the housing 12 in connection with the sliding guide 16 and then prescribing the end position, ie the final position in which the housing 12 can be fastened.
  • this slide shoe serves as a fastening element, ie the axial securing of the housing 12 in the installed state is carried out by the slide shoe.
  • a seal must be made between the filter cartridge 13 and the security cartridge 15 on their opposite faces. This sealing takes place by means of a sealing ring 19 arranged on the end plate 18 of the filter cartridge 13.
  • this sealing ring 19 will graze along the safety cartridge or on end faces of walls of the housing part 10 and thereby damage or Destruction of the sealing ring 19 occurs due to shear forces.
  • the sealing pressure is applied, the sealing ring itself and the sealing surface are laterally displaced with respect to one another, producing abrasion. This can also damage the sealing ring or detach it from the filter insert.
  • the housing 12 carries a spacer in the form of a nose 20.
  • This nose supports abuts on a sliding surface or support surface 21 and thus causes the housing 12 to spread apart from the housing part 10. Only when the housing 12 is in its correct position, ie in the installed position, can both parts be joined together.
  • a recess 22 is provided on the housing part 10, into which the nose 20 dips and thus enables the sealing surfaces to meet.
  • a handle 23 is provided for handling the housing 12. In the area of this handle there are two hook closures with which the housing 12 is fastened to the housing part 10.
  • FIG. 2 shows a more detailed illustration of the entire intake air filter.
  • the housing 12 is shown in the installed state.
  • This figure also shows the flow pattern of the intake air.
  • This is fed via the intake air nozzle 24 to an annular chamber 25 in the housing part 10. From this annular chamber, the intake air flows through guide vanes 26 into an unfiltered air space 27. Because of the swirl generated by the guide vanes, coarse dust separation takes place in this room. The dust can be removed through the removal opening 28.
  • the intake air flows through the filter cartridge 13 in the radial direction from the outside inwards and then the safety cartridge 15 from the inside outwards and reaches the outlet side of the filter with the connecting piece 30 via an annular chamber 29.
  • the safety cartridge 15 is screwed via its end plate 31 to the intermediate wall 32 of the housing part 10.
  • This end plate 31 also carries a sealing ring 33.
  • the slide shoe 17 lies at the contact point 34 on the slide guide 16 on. This ensures in the installed state that a secure and effective connection of the housing 12 to the housing part 10 takes place in the region of the sliding guides. It is also essential here that when the housing 12 is removed or attached, the slide shoe 17 moves about the pivot point 35. This means that when the housing 12 is removed, the slide shoe 17 first moves downward at the contact point 34 and only when the sealing ring 19 is lifted off the end plate of the safety cartridge 15 can the slide shoe slide out of the slide guide. The position of this fulcrum 35 in the sealing plane ensures that no tilting movement of the sealing ring 19 occurs due to the tilting of the housing 12.
  • FIG. 3 which shows a top view of the left housing half and thus of the housing part 10, shows that two sliding guides are arranged in the lower region of the housing part 10.
  • the sliding surfaces 21 are also shown, on which the lugs 20, which are not visible here, slide along until they engage in the recesses 22.
  • the spatial arrangement of the sliding guide 16 and the sliding surfaces 21 in the manner shown shows that when the housing 12 is installed, this housing is reliably spread apart by the lugs.
  • the housing part 10 is fastened to the mounting wall by means of the screws 36, 37, 38.
  • the two tabs 39, 40 can also be seen, to which resilient hook closures attack and cause the flange 12 to be securely flanged onto the housing part 10.
  • centering surfaces 41 there are two centering surfaces 41 on the upper side of the housing part 10.
  • a nose 42 attached to the handle 23 engages between these centering surfaces 41.
  • This nose 42 is shown in Figure 2 and Figure 1. This additional centering offers further security that the housing 12 is brought into the correct angular position with respect to the housing part 10.
  • the nose 42 in conjunction with the centering surfaces 41 is a means of visually checking the correct position of the parts relative to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP90104168A 1989-06-06 1990-03-03 Ansaugluftfilter für Brennkraftmaschinen Expired - Lifetime EP0401471B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90104168T ATE74404T1 (de) 1989-06-06 1990-03-03 Ansaugluftfilter fuer brennkraftmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918347A DE3918347A1 (de) 1989-06-06 1989-06-06 Ansaugluftfilter fuer brennkraftmaschinen
DE3918347 1989-06-06

Publications (2)

Publication Number Publication Date
EP0401471A1 EP0401471A1 (de) 1990-12-12
EP0401471B1 true EP0401471B1 (de) 1992-04-01

Family

ID=6382128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104168A Expired - Lifetime EP0401471B1 (de) 1989-06-06 1990-03-03 Ansaugluftfilter für Brennkraftmaschinen

Country Status (7)

Country Link
US (1) US5042999A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0401471B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AR (1) AR240505A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE74404T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR9002445A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3918347A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2031715T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8902441L (sv) * 1989-07-05 1991-01-06 Volvo Ab Filteranordning, i synnerhet insugningsfilter foer foerbraenningsmotorer
DE4034216C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-10-27 1992-06-17 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De
US5487767A (en) * 1993-09-30 1996-01-30 Dana Corporation Radially sealed air filters
DE19644647A1 (de) * 1996-10-26 1998-04-30 Mann & Hummel Filter Flüssigkeitsfilter
US6187073B1 (en) * 1999-03-17 2001-02-13 Donaldson Company, Inc. Air cleaner; aerosol separator; and method
US6676721B1 (en) * 2000-06-02 2004-01-13 Donaldson Company, Inc. Multistage air cleaner including pulse cleaning system
DE10036593A1 (de) * 2000-07-27 2002-02-07 Mann & Hummel Filter Luftfilter, insbesondere für die Ansaugluft einer Brennkraftmaschine
EP2389994B1 (en) * 2005-03-31 2013-06-12 Donaldson Company, Inc. Air cleaner assembly
DE202005009989U1 (de) * 2005-06-25 2006-11-02 Mann + Hummel Gmbh Filter mit einem Filtergehäuse
EP2061576B1 (en) 2006-06-19 2014-10-08 Donaldson Company, Inc. Air cleaner with pulse jet reverse cleaning
BRPI0907821A2 (pt) * 2008-02-26 2017-02-21 Mann & Hummel Gmbh elemento de filtração com pega
US8317890B2 (en) 2008-08-29 2012-11-27 Donaldson Company, Inc. Filter assembly; components therefor; and, methods
DE202009001693U1 (de) 2009-02-11 2010-08-19 Mann+Hummel Gmbh Luftfilter eines Verbrennungsmotors
US9186612B2 (en) 2010-01-22 2015-11-17 Donaldson Company, Inc. Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods
US9909543B2 (en) 2015-11-19 2018-03-06 Cnh Industrial America Llc Air intake system for a work vehicle with enhanced pre-cleaner serviceability
DE102016001134A1 (de) * 2016-02-03 2017-08-03 Mann + Hummel Gmbh Filtergehäuse und Filter
DE102018117995A1 (de) * 2018-07-25 2020-01-30 Mann+Hummel Gmbh Filtereinsatz zum austauschbaren Einbau in ein Filtergehäuse eines Filters für Fluid und Filter
CN110665298B (zh) * 2019-10-30 2024-12-06 上海弗列加滤清器有限公司 一种滤芯及空气滤清器
CN114294134B (zh) * 2022-03-11 2022-05-13 氢山(北京)氢内燃机技术研究院有限公司 用于车辆氢内燃机的进气系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875427A (en) * 1932-09-06 Aib cleaneb
DE1665873U (de) * 1953-02-18 1953-10-29 Mann & Hummel Filter Loesbare verbindung fuer die gehaeuseteile von luftfiltern bzw. sauggeraeuschdaempfern.
US3048959A (en) * 1959-10-27 1962-08-14 Novo Ind Corp Air cleaning device and method
US3319404A (en) * 1965-04-21 1967-05-16 Novo Ind Corp Dust unloader
US3385034A (en) * 1966-02-17 1968-05-28 Farr Co Two-stage filter housing and seal arrangement
DE1665873C3 (de) * 1966-02-23 1978-04-06 A. Salvi & C. S.P.A., Mailand (Italien) Abstandhalter für Hochspannungsfreileitungen
US3429108A (en) * 1967-03-03 1969-02-25 Donaldson Co Inc Automatic-unloading dust valve for centrifugal air cleaners
US3423909A (en) * 1967-09-28 1969-01-28 Novo Ind Corp Air cleaner with improved filter element assembly
US3508383A (en) * 1968-02-15 1970-04-28 Wix Corp Air filter
US3442067A (en) * 1968-02-26 1969-05-06 Deere & Co Air cleaner
US3672130A (en) * 1970-04-02 1972-06-27 Donaldson Co Inc Retention means for air cleaner element
US4006000A (en) * 1974-06-06 1977-02-01 United Filtration Corporation All dry air cleaner
US4197101A (en) * 1978-02-27 1980-04-08 Fram Corporation Air cleaner
JPS608469A (ja) * 1983-06-27 1985-01-17 Nippon Denso Co Ltd 内燃機関の過渡時点火進角補正制御方法

Also Published As

Publication number Publication date
DE3918347A1 (de) 1990-12-13
BR9002445A (pt) 1991-08-06
DE59000075D1 (de) 1992-05-07
AR240505A1 (es) 1990-04-30
US5042999A (en) 1991-08-27
EP0401471A1 (de) 1990-12-12
ATE74404T1 (de) 1992-04-15
ES2031715T3 (es) 1992-12-16
DE3918347C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-01-23

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