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1. WO2007137911 - AIR FILTER UNIT COMPRISING AT LEAST ONE MAIN AIR FILTER AND AN ADDITIONAL AIR FILTER

Publication Number WO/2007/137911
Publication Date 06.12.2007
International Application No. PCT/EP2007/053760
International Filing Date 18.04.2007
IPC
F02M 35/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
35Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
02Air cleaners
04specially arranged with respect to engine; Mounting thereon
CPC
B01D 2267/40
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2267Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
40Different types of filters
B01D 2279/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2279Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
30for treatment of exhaust gases from IC Engines
B01D 46/0024
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
0019with multiple filtering elements, characterised by their mutual disposition
0023connected in series
0024arranged concentrically or coaxially
F02M 35/024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
35Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
02Air cleaners
024using filters, e.g. moistened
F02M 35/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
35Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
02Air cleaners
04specially arranged with respect to engine ; , to intake system or specially adapted to vehicle; Mounting thereon ; ; Combinations with other devices
Applicants
  • MANN+HUMMEL GMBH [DE]/[DE] (AllExceptUS)
  • RIEGER, Mario [DE]/[DE] (UsOnly)
Inventors
  • RIEGER, Mario
Priority Data
10 2006 025 231.429.05.2006DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) LUFTFILTEREINHEIT MIT WENIGSTENS EINEM HAUPTLUFTFILTER UND EINEM ZUSATZLUFTFILTER
(EN) AIR FILTER UNIT COMPRISING AT LEAST ONE MAIN AIR FILTER AND AN ADDITIONAL AIR FILTER
(FR) ENSEMBLE FILTRE À AIR COMPRENANT AU MOINS UN FILTRE À AIR PRINCIPAL ET UN FILTRE À AIR SUPPLÉMENTAIRE
Abstract
(DE)
Bei einer Luftfiltereinheit (10) mit wenigstens einem Hauptluftfilter (1) und einem Zusatzluftfilter (2), welcher über eine Luftleitung (3) mit dem Hauptluftfilter (1) verbunden ist und wenigstens ein Zusatzfilterelement aufweist, ist das Zusatzfilterelement durch eine wenigstens teilweise poröse Wandung der ansaugseitig abgeschlossenen Luftleitung (3) auf der Rohluftseite des Hauptluftfilters (1) gebildet. Im umgekehrten Fall, bei Anbringung auf der Reinluftseite, ist das Zusatzfilterelement innerhalb der mit dem Hauptluftfilter verbundenen Luftleitung angeordnet.
(EN)
The invention relates to an air filter unit (10) comprising at least one main air filter (1) and an additional air filter (2) which is connected to the main air filter (1) by means of an air line (3) and comprises at least one additional filter element. The additional filter element is formed, on the untreated air side of the main air filter (1), by an at least partially porous wall of the air line which is closed on the suction side. Conversely, when the additional filter element is applied to the treated air side, it is arranged inside the air line connected to the main air filter.
(FR)
L'invention concerne un ensemble filtre à air (10) comprenant au moins un filtre à air principal (1), et un filtre à air supplémentaire (2) qui est relié au filtre à air principal (1) par l'intermédiaire d'une conduite d'air (3) et qui comporte au moins un élément de filtrage supplémentaire. La présente invention est caractérisée en ce que cet élément de filtrage supplémentaire est formé par une paroi au moins partiellement poreuse de la conduite d'air (3), laquel est fermée côté admission, et est disposé côté air non traité du filtre à air principal (1). A l'inverse, lorsqu'il est disposé côté air traité, l'élément de filtrage supplémentaire se trouve dans la conduite à air qui est reliée au filtre à air principal.
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