EP4330535A1 - Luftfilteranordnung zur reinigung eines luftstroms für ein nutzfahrzeug - Google Patents
Luftfilteranordnung zur reinigung eines luftstroms für ein nutzfahrzeugInfo
- Publication number
- EP4330535A1 EP4330535A1 EP22724685.7A EP22724685A EP4330535A1 EP 4330535 A1 EP4330535 A1 EP 4330535A1 EP 22724685 A EP22724685 A EP 22724685A EP 4330535 A1 EP4330535 A1 EP 4330535A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- air
- air filter
- arrangement according
- fine
- 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
Links
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
- F02M35/0212—Multiple cleaners
- F02M35/0216—Multiple cleaners arranged in series, e.g. pre- and main filter in series
-
- 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
- F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
- F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
-
- 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
- F02M35/024—Air cleaners using filters, e.g. moistened
-
- 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
- F02M35/024—Air cleaners using filters, e.g. moistened
- F02M35/02441—Materials or structure of filter elements, e.g. foams
- F02M35/0245—Pleated, folded, corrugated filter elements, e.g. made of paper
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10104—Substantially vertically arranged ducts
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10111—Substantially V-, C- or U-shaped ducts in direction of the flow path
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
-
- 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
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/164—Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines
Definitions
- Air filter arrangement for cleaning an air flow for a utility vehicle
- the invention relates to an air filter arrangement for cleaning an air flow for a commercial vehicle, in particular for an agricultural tractor, comprising a pre-filter communicating with an air inlet and a first fine filter downstream of the pre-filter in the direction of the air flow.
- the first fine filter is followed by a redundant second fine filter, which is assigned to an air filter section running horizontally in a predetermined installation position of the air filter arrangement.
- Such multi-stage air filter assemblies are usually used in areas where the ambient air is heavily contaminated with dust. This is particularly the case with commercial vehicles from the forestry and agricultural sectors, but also from the construction sector.
- the ambient air to be cleaned is typically fed here to an intake tract of a diesel-powered internal combustion engine.
- the individual filters are housed as cartridges that can be removed individually for maintenance or cleaning purposes in a common filter housing that is installed horizontally in the commercial vehicle. If the cartridges are removed, this prevents dust particles that have penetrated the filter housing from being able to reach the subsequent intake tract of the combustion engine unhindered. This risk would exist above all if the filter housing were installed on the right.
- the air filter arrangement for cleaning an air flow for a commercial vehicle, in particular for an agricultural tractor comprises a pre-filter communicating with an air inlet and a first fine filter which is downstream of the pre-filter in the direction of the air flow and which, together with the pre-filter, is part of an air filter section which runs vertically in a predetermined installation position is assigned, with the first fine filter being followed in the direction of the air flow by a redundant second fine filter, which is assigned to an air filter section running horizontally in the specified installation position, the horizontally running air filter section being part of a siphon-like line area which starts from the redundant second fine filter arcuately increases in the direction of an air outlet.
- Pre-filter and the first fine filter are therefore arranged together in the vertically running air filter section un indirectly one after the other.
- Pre-filter and first fine filter form the main filter of the air filter assembly.
- the redundant second fine filter which is present for reasons of operational safety, is merely an additional filter and can therefore be located at a distance from the main filter in the following horizontally running air filter section.
- Such a structure takes into account the structural conditions prevailing in common commercial vehicles from the agricultural, forestry and construction machinery sectors, because here it is conceivable, among other things, to design the vertically running air filter section in the form of an intake snorkel located outside of an engine compartment, whereas the horizontal one running air filter section in an area below a combustion engine can enter the side of the engine compartment.
- the use of an intake snorkel allows an increase in the distance between the air intake and the ground and thus an intake of ambient air with a correspondingly lower dust load.
- the air filter arrangement according to the invention therefore makes it possible to make better use of the installation space that is typically available in a commercial vehicle.
- the installation position of the two air filter sections can be specified on the basis of an imaginary vehicle level. gene, which is spanned by a first axis oriented essentially in the longitudinal direction of the utility vehicle and a second axis oriented essentially in the transverse direction of the utility vehicle. Relative to this vehicle level, the vertically running air filter section is upright and the horizontal air filter section is arranged lying on the utility vehicle.
- the pre-filter is preferably designed as a centrifugal separator for separating coarse particles contained in the intake air flow.
- the centrifugal separator comprises a large number of air inlets, which are connected to a respective individual separator, which causes the air flow passing through to undergo a whirling motion in such a way that the coarse particles contained therein are thrown into a collection area surrounding the individual separators due to the centrifugal forces that occur.
- the collection area provided within the centrifugal separator communicates with a vacuum line for continuous suction of the separated coarse particles.
- the vacuum line can open into an intake region on the low-pressure side of an axial fan arrangement included in an engine cooling system, or it can be connected to a separate vacuum generator.
- the vertically running air filter section is connected to the horizontally running air filter section via a flexible bellows.
- the flexible bellows allow operational movements or vibrations to be compensated for between the two sections.
- the use of a flexible bellows also makes it possible to attach the vertically running air filter section to a driver's cab that is suspended in a spring-loaded manner in relation to a supporting vehicle chassis.
- At least one fastening element for mounting on a supporting structure of the driver's cab of the commercial vehicle can be seen easily on the vertically running air filter section.
- the fastening element is, for example, a holder that is formed in one piece on a plastic housing that is included in the air filter arrangement.
- the first fine filter comprises a folded nonwoven filter fabric as the filter-active element. During operation, dust particles become lodged in them, which cannot be removed even by cleaning, for example by blowing out with compressed air. In order to prevent degradation of the filter performance, the first fine filter can therefore be designed as a replaceable disposable filter cartridge.
- the disposable filter cartridge can also be equipped with a sensor-detectable individual identification feature, on the basis of which further use of the disposable filter cartridge after a specified period of use has expired is excluded.
- the identification mark sometimes it is an RFID tag, for example, which can be read using an on-board RFID receiver.
- the read identification feature is transmitted to a control unit which, based on an operating hours counter started for the relevant disposable filter cartridge, determines whether the specified service life has been exceeded. If this is the case, the control unit prevents the commercial vehicle from being started up again, while at the same time issuing corresponding driver information.
- the arcuately rising line area can be designed as an elastic shear air hose. This consists of a heat-resistant rubber compound, such as Viton. A possible transmission of operational movements of a connected vehicle assembly to the components of the vertically running air filter section can be largely ruled out.
- a connecting piece for connection to an intake tract of a vehicle assembly designed as an internal combustion engine is typically provided at the air outlet.
- the connection piece can be formed directly on the elastic air hose as part of the arcuately rising line area.
- the connecting piece is mounted in an airtight manner, for example by means of a hose clamp, on a connecting flange of the internal combustion engine communicating with the intake tract.
- air filter arrangement does not have to be limited to cleaning an air flow to be supplied to an internal combustion engine. Rather, other applications are also possible, where reliable filtering of the ambient air is required, for example in the case of air conditioning in a driver's cab that is hermetically sealed to protect against pesticides to be applied.
- Fig. 1 shows an embodiment of the air filter assembly according to the invention for cleaning an air flow for a commercial vehicle
- FIG. 2 shows a commercial vehicle designed as an agricultural tractor, comprising the air filter arrangement shown in FIG.
- Fig. 1 shows an embodiment of the air filter assembly 10 according to the invention, the structure and operation of which will be explained below with reference to the built-in state shown in FIG.
- the multi-stage air filter arrangement 10 comprises a pre-filter 16 communicating with an air inlet 14 and a first fine filter 20 downstream of the pre-filter 16 in the direction of an air flow 18 to be cleaned.
- the first fine filter 20, together with the pre-filter 16, is in a predetermined installation position 22 vertically running Lucasfil terabites 24 assigned.
- the first fine filter 20 is followed by a redundant second fine filter 26 in the direction of the air flow 18 to be cleaned.
- the redundant second fine filter 26 is assigned to a horizontal section 28 in the PRE-surrounded installation position 22 Heilfilterab.
- the horizontally extending air filter section 28 is part of a siphon-like area 30 which, starting from the redundant second Feinfil ter 26 in the direction of an air outlet 32, from which the cleaned air flow 18 emerges, rises in an arc.
- an imaginary vehicle plane 34 is taken as a basis, which consists of a first axis 36 oriented essentially in the longitudinal direction of the agricultural tractor 12 and a first axis 36 oriented essentially in the transverse direction of the agricultural tractor 12 oriented second axis 38 is clamped. Relative to this vehicle level 34 of the verti cal running air filter section 24 is upright and the hori zontal running air filter section 28 lying on the agricultural tractor 12 is arranged.
- the actual filtering of the air flow 18 is carried out by means of the pre-filter 16 and the first fine filter 20, these are therefore cut together in the vertically extending Gutfilterab 24 housed immediately one after the other. Upstream of filter 16 and the first fine filter 20 form the main filter 40 of the air filter assembly 10.
- the redundant second fine filter 26, which is present for operational safety reasons, is simply an additional filter and is located at a distance from the main filter 40 in the subsequent horizontal air filter section 28. As can best be seen in Fig.
- the vertically running air filter section 24 is, for example, in the form of an intake snorkel 44 located outside of an engine compartment 42 of the agricultural tractor 12, whereas the horizontally running air filter section 28 is in an area 46 below a out formed as an internal combustion engine 48 vehicle assembly laterally enters the engine compartment 42 enters.
- the use of an intake snorkel 44 allows an increase in the distance between the air inlet 14 and the ground 50 and thus an intake of ambient air with a correspondingly lower dust load.
- the vertically running air filter section 24 comprised by the intake snorkel 44 is connected to the horizontally running air filter section 28 via a flexible bellows 52 .
- the flexible bellows 52 enables operational movements or vibrations to be compensated for between the two sections 24, 28, particularly in the event that the vertically running air filter section 24, as here, is attached to a driver's cab 56 which is sprung and suspended in relation to a supporting vehicle chassis 54.
- At least one fastening element 58 for mounting on a support structure 60 of the driver's cab 56 of the agricultural tractor 12 is provided on the vertical section 24 of the air filter.
- the fastening element 58 is a holder 62 which is formed in one piece on a plastic housing 64 comprised by the air filter arrangement 10 in the area of the intake snorkel 44 .
- the arcuately rising line area 30 is designed as an elastic air hose 66 shear. This consists of one heat-resistant rubber compound, for example made of Viton.
- a connecting piece 68 for connection to an intake tract 70 of the internal combustion engine 48 is provided at the air outlet 32 .
- the connecting piece 68 is formed directly on the elastic air hose 66 as part of the arcuately rising Lei processing area 30 and is airtight by means of a hose clamp 72 on a communicating with the intake manifold 70 connecting flange 74 of the internal combustion engine 48 mon benefits.
- the pre-filter 16 is inserted into the plastic housing 64 in the form of a cassette-like insert 76 in an end region 78 of the intake snorkel 44 so that it is accessible from the outside.
- the cassette-like insert 76 is constructed in several parts and can be removed by hand for the purpose of disassembling and cleaning it.
- the pre-filter 16 is designed as a centrifugal separator 80 for separating out coarse particles contained in the intake air flow 18 .
- the centrifugal separator 80 includes a large number of air inlet openings 82, which are connected to a respective individual separator 84, which sets the air flow 18 passing through in a whirling motion in such a way that the coarse particles contained therein are transported to a collection area 86 surrounding the individual separators 84 due to the centrifugal forces that occur be thrown.
- the collection area 86 provided within the centrifugal separator 80 communicates with a vacuum line 88 for continuous suction of the separated coarse particles.
- the Vacuum line 88 here opens into an intake area 90 on the low-pressure side of an axial fan arrangement (not shown) comprised by an engine cooling system.
- the first fine filter 20 comprises a folded filter fleece (not shown) as the active filter element. During operation, dust particles settle in it, which can no longer be removed even by cleaning, for example by blowing out with compressed air.
- the first fine filter 20 is therefore designed as a replaceable disposable filter cartridge 92 .
- the disposable filter cartridge 92 is located in a receiving area within the plastic housing 64 that can be closed airtight by means of a cover 94.
- the arranged in the vertically extending line section 24 second fine filter 26 also forms an existing plastic transition piece 96, at one end of the flexible bellows 52 and the other end of the elastic air hose 66 is being introduced. If necessary, the transition piece 96 can be removed for the purpose of cleaning or replacing the second fine filter 26 or a filter-active element arranged therein, whereby the elastic air hose 66 rising in the direction of the air outlet 32, due to the force of gravity, allows the dust particles released in the process to pass over possibly have accumulated in this area, in the direction of the intake tract 70 largely excludes.
- the second fine filter 26 is preferably located at the lowest point of the siphon-like line area 30.
- the air filter arrangement 10 provides that the disposable filter cartridge 92 contained by the first fine filter 20 is equipped with an individual identification feature 98 that can be detected by sensors, on the basis of which further use of the disposable filter cartridge 92 after a specified period of use is excluded.
- the identification feature 98 is an RFID tag 100 which can be read out by means of an RFID receiver 102 on the vehicle.
- the read identification feature 98 is transmitted to a control unit 104 which, based on an operating hours counter started for the disposable filter cartridge 92 in question, determines whether the specified service life has been exceeded. If this is the case, then the control unit 104 prevents the agricultural tractor 12 from being put back into operation while at the same time outputting corresponding driver information. The latter takes place via a user interface 106 which is connected to the control unit 104 and is located in the driver's cab 56 of the agricultural tractor 12 .
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)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021111190.0A DE102021111190A1 (de) | 2021-04-30 | 2021-04-30 | Luftfilteranordnung zur Reinigung eines Luftstroms für ein Nutzfahrzeug |
| PCT/EP2022/060601 WO2022229002A1 (de) | 2021-04-30 | 2022-04-21 | Luftfilteranordnung zur reinigung eines luftstroms für ein nutzfahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4330535A1 true EP4330535A1 (de) | 2024-03-06 |
| EP4330535B1 EP4330535B1 (de) | 2025-05-07 |
Family
ID=81750877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22724685.7A Active EP4330535B1 (de) | 2021-04-30 | 2022-04-21 | Luftfilteranordnung zur reinigung eines luftstroms für ein nutzfahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12018632B1 (de) |
| EP (1) | EP4330535B1 (de) |
| BR (1) | BR112023017141A2 (de) |
| DE (1) | DE102021111190A1 (de) |
| WO (1) | WO2022229002A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750155B (zh) * | 2022-11-28 | 2024-04-19 | 东风柳州汽车有限公司 | 车用空滤装置及车辆 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2055719A (en) | 1979-08-07 | 1981-03-11 | Leyland Vehicles | Air intake for vehicle engine |
| US9957929B2 (en) * | 2014-07-08 | 2018-05-01 | Cnh Industrial America Llc | System and method for capturing cleaner intake air for use within an air intake system of a work vehicle |
| US9689334B2 (en) | 2014-11-14 | 2017-06-27 | Cnh Industrial America Llc | Air intake system for an off-road vehicle |
| CN113574266B (zh) | 2019-03-15 | 2023-06-13 | 沃尔沃卡车集团 | 车辆的空气滤清器壳体 |
-
2021
- 2021-04-30 DE DE102021111190.0A patent/DE102021111190A1/de active Pending
-
2022
- 2022-04-21 BR BR112023017141A patent/BR112023017141A2/pt unknown
- 2022-04-21 US US18/557,104 patent/US12018632B1/en active Active
- 2022-04-21 WO PCT/EP2022/060601 patent/WO2022229002A1/de not_active Ceased
- 2022-04-21 EP EP22724685.7A patent/EP4330535B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4330535B1 (de) | 2025-05-07 |
| BR112023017141A2 (pt) | 2023-11-21 |
| US12018632B1 (en) | 2024-06-25 |
| US20240218848A1 (en) | 2024-07-04 |
| WO2022229002A1 (de) | 2022-11-03 |
| DE102021111190A1 (de) | 2022-11-03 |
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