EP2275664A1 - Dispositif de filtration d'air d'aspiration d'un moteur pour un véhicule - Google Patents

Dispositif de filtration d'air d'aspiration d'un moteur pour un véhicule Download PDF

Info

Publication number
EP2275664A1
EP2275664A1 EP10166231A EP10166231A EP2275664A1 EP 2275664 A1 EP2275664 A1 EP 2275664A1 EP 10166231 A EP10166231 A EP 10166231A EP 10166231 A EP10166231 A EP 10166231A EP 2275664 A1 EP2275664 A1 EP 2275664A1
Authority
EP
European Patent Office
Prior art keywords
air
engine
filtering device
cavity
box
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.)
Withdrawn
Application number
EP10166231A
Other languages
German (de)
English (en)
Inventor
Gaetano Bergami
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.)
BMC SRL
Original Assignee
BMC SRL
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 BMC SRL filed Critical BMC SRL
Publication of EP2275664A1 publication Critical patent/EP2275664A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • 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
    • F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face

Definitions

  • the present invention relates to a filtering device for the air taken in by the engine of a vehicle.
  • the filtering device for the air taken in by the engine comprises an air-box which is typically of a parallelepiped shape and internally houses a filtering element; the filtering element divides the air-box into an intake chamber, which is arranged upstream of the filtering element and communicates with the external environment via an intake opening, and an outlet chamber, which is arranged downstream of the filtering element and communicates with the suction system of the engine via an outlet opening.
  • the filtering element must have a clear passage large enough to ensure a sufficiently limited pressure drop (i.e. difference in pressure between the air upstream and downstream of the filtering device) in that the greater the drop in pressure due to the filtering device the greater the reduction in the maximum power that can be generated by the engine.
  • the volume of the outlet chamber must be big enough in order for it to act as a lung of the suction system, i.e. to store a sufficiently large amount of air to absorb any fluctuations in the amount of air that is taken in by the suction system.
  • WO2007131497A1 and EP1308373A1 describe a filtering device for the air taken in by an engine of a vehicle housed in an engine compartment of said vehicle.
  • the filtering device is provided with: an air-box internally comprising a cavity provided with an intake opening towards the external environment and an outlet opening towards a suction system of the engine, and a filtering element housed inside the air-box and arranged between the intake opening and the outlet opening; the air-box has a flattened form which reproduces in plan view the horizontal section of the engine compartment and is suitable to be arranged inside said engine compartment above the engine so as to form an upper cover of the engine and constitute an upper closing of the engine compartment.
  • the object of the present invention is to provide a filtering device for the air taken in by the engine of a vehicle, said filtering device overcoming the drawbacks described above and, at the same time, being easy and inexpensive to produce.
  • a road vehicle 1 in particular a car
  • an engine compartment 2 arranged in a front position and closed at the top by a pivotally attached bonnet 3, and an internal combustion engine 4 (illustrated in figure 2 ) housed inside the engine compartment 2.
  • the engine 4 comprises a suction system 5 provided with an intake butterfly valve 6 that regulates the flow of fresh air into an intake manifold 7 that communicates with the cylinders (not illustrated) of the engine 4 via respective intake ducts 8.
  • the engine 4 is provided with a filtering device 9 for the air taken in by the engine 4.
  • the filtering device 9 comprises an air-box 10 internally comprising a cavity 11 having at least one intake opening 12 towards the external environment and at least one outlet opening 13 towards the suction system 5 of the engine 4; the filtering device 9 also comprises at least one filtering element 14 that is housed inside the air-box 10 and is arranged between the intake opening 12 and the outlet opening 13.
  • the filtering element 9 divides the cavity 11 into an intake chamber, which is arranged upstream of the filtering element 14 and communicates with the external environment via the intake opening 12, and an outlet chamber, which is arranged downstream of the filtering element 14 and communicates with the suction system 5 of the engine 4 via the outlet opening 13.
  • the air-box 10 has a flattened form which reproduces in plan view the horizontal section of the engine compartment 2 and is suitable to be arranged inside said engine compartment 2 above the engine 4 so that it constitutes an upper cover of the engine 4 and an upper closure of the engine compartment 2.
  • the vertical thickness of the air-box 10 in correspondence with the cavity 11 is much smaller than a horizontal extension; for example the vertical thickness of the air-box 10 in correspondence with the cavity 11 is in the region of some centimetres and is generally between 3 and 10 cm while the horizontal extension of the air-box 10 is in the region of some tens of centimetres on each side and the transverse width is between 80 and 150 cm and the longitudinal length is between 50 and 120 cm.
  • the air-box 10 has a variable vertical thickness so that it can adapt to the vertical dimensions of the engine 4 and the air-box 10 thus has a vertical thickness that is lower at the centre and higher at the ends; in this way, the air-box 10 achieves a cavity 11 with a large volume while taking up a minimum amount of space inside the engine compartment 2.
  • the air-box 10 has a more or less parallelepiped form and comprises a horizontal upper wall 15, a horizontal lower wall 16 which is parallel and opposite to the upper wall 15, a vertical front wall 17, a vertical back wall 18 which is opposite to the front wall 17, and two vertical side walls 19 which are opposite to each other.
  • the intake opening 12 is arranged in proximity to the front wall 17 and preferably through the front wall 17 and the outlet opening 13 is arranged in proximity to the back wall 18 and preferably through the lower wall 16; in this way the outlet opening 13 can be arranged immediately above the butterfly valve 6 and the air-box 10 can thus discharge directly into the butterfly valve 6 without any need for connecting ducts.
  • the intake opening 12 is suitable to receive the air from a dynamic air intake 20 obtained through a front wall 21 of the vehicle 1; in particular, the filtering device 9 comprises a tubular intake pipe 22, which is suitable to connect the intake opening 12 to the dynamic air intake 20 obtained through the front wall 21 of the vehicle 1. It is important to note that the intake opening 12 is very close to the dynamic air intake 20 so that, if necessary, the intake pipe 22 is very short and thus results in extremely reduced pressure drops.
  • the pressure of the air against the front wall 21 of the vehicle 1 generates an overpressure inside the cavity 11 which is greater the faster the vehicle 1 is travelling; this overpressure inside the cavity 11 results in increased filling of the cylinders of the engine 4 and thus increased power generated by said engine 4.
  • the filtering element 14 is arranged in correspondence with the intake opening 12; in this embodiment the intake chamber is practically non-existent and the entire cavity 11 coincides with the outlet chamber.
  • the filtering element 14 is arranged inside the cavity 11 (closer to the intake opening 12 in the embodiment shown in figure 5 , closer to the outlet opening 13 in the embodiment shown in figure 6 ); in this embodiment the cavity 11 contains both the intake chamber and the outlet chamber.
  • the filtering element 14 is arranged in correspondence with the outlet opening 13; in this embodiment the outlet chamber is practically non-existent and the entire cavity 11 coincides with the intake chamber (this configuration is not disadvantageous in that the intake chamber has a very large volume and is arranged immediately upstream of the filtering element 14 and thus capable of acting as a lung of the suction system 5).
  • FIGS 8 and 9 illustrate a further alternative embodiment of the filtering device 9, in which the cavity 11 is provided with two intake openings 12 towards the external environment arranged side by side and a single outlet opening 13 towards the suction system 5 of the engine 4; the filtering element 14 is arranged inside the cavity 11 and in the vicinity of the outlet opening 13.
  • the cavity 11 of the air-box 10 substantially extends over the entire area of the air-box 10.
  • the cavity 11 of the air-box 10 only extends over a limited part of the air-box 10; in this embodiment, the remaining part 23 of the air-box 10, over which the cavity 11 does not extend, is internally solid and has a smaller vertical thickness (normally less than 1 cm) compared to the vertical thickness of the part of the air-box 10 over which the cavity 11 extends.
  • the air-box 10 has some raised and internally hollow parts which define the cavity 11 and other lower and internally solid parts 23 which are arranged around the cavity 11 (i.e. the parts 23 are substantially flat).
  • the cavity 11 comprises two main tubular portions 11a and 11b, each of which is provided with its own intake opening 12 separate and independent from the intake opening 12 of the other and is provided internally with its own filtering element 14 separate and independent from the filtering element 14 of the other.
  • the cavity 11 comprises a tubular connecting portion 11c that receives the air from both of the main tubular portions 11a and 11b and ends in correspondence with the outlet end 13; the tubular connecting portion 11c carries the air passing through the two main tubular portions 11a and 11b towards the outlet end 13.
  • the two main tubular portions 11a and 11b are parallel to one another; alternatively, the two main tubular portions 11a and 11b could be arranged in a V-shape and converge towards one another in correspondence with the tubular connecting portion 11c.
  • tubular connecting portion 11c is shaped differently with respect to that illustrated in figures 10 to 12 and the outlet opening 13 is arranged at the centre of the tubular connecting portion 11c.
  • the cavity 11 comprises a single tubular portion that extends from the intake opening 12 to the outlet opening 13; in other words, in this embodiment the cavity 11 is tubular in shape and extends from the intake opening 12 to the outlet opening 13.
  • the filtering device 9 described above has an air-box 10 with a very large volume (thus suitable to house a filtering element 14 with a large clear passage) while taking up very little or even no space in the engine compartment 2.
  • This result is achieved thanks to the fact that the air-box 10 is flat (i.e. "board"-shaped) so that it can be arranged above the engine 4 to constitute an upper cover for the engine and to constitute an upper closure of the engine compartment 2; in other words, the air-box 10 is shaped so as to occupy the space within the engine compartment 2 that is normally free (i.e. not used by any other devices) and thus does not actually take up any space inside the engine compartment 2.
  • the air-box 10 performs two functions: it guarantees the supply of fresh air to the engine 4 and constitutes an upper closure of the engine compartment 2.
  • the latter function is not secondary or useless; on the contrary, it is important in that the current tendency is to build an aesthetically "ugly" engine 4 in order to cut costs (i.e. without having to consider the appearance of the engine and thus avoiding the use of expensive materials, not having to hide electric wiring and hydraulic/pneumatic hoses or to choose less rational but more "attractive" layouts) and at the same time to provide the engine compartment 2 with a cover screen having a suitably finished upper surface (in the present invention the air-box 10 acts as the cover screen).
  • the function of acting as an upper closure of the engine compartment 2 is not only an advantage in terms of appearance, but is also useful for reducing the noise emissions of the engine 4 as it constitutes a valid acoustic screen (for that purpose the engine-box 10 can be further soundproofed by applying sound-absorbing materials).

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)
  • Compressor (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP10166231A 2009-06-17 2010-06-16 Dispositif de filtration d'air d'aspiration d'un moteur pour un véhicule Withdrawn EP2275664A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO2009A000390A IT1394274B1 (it) 2009-06-17 2009-06-17 Dispositivo filtrante per l'aria aspirata da un motore di un veicolo

Publications (1)

Publication Number Publication Date
EP2275664A1 true EP2275664A1 (fr) 2011-01-19

Family

ID=41694906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10166231A Withdrawn EP2275664A1 (fr) 2009-06-17 2010-06-16 Dispositif de filtration d'air d'aspiration d'un moteur pour un véhicule

Country Status (2)

Country Link
EP (1) EP2275664A1 (fr)
IT (1) IT1394274B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2860384A1 (fr) * 2013-10-10 2015-04-15 Hyundai Motor Company Épurateur d'air dans un véhicule
FR3015389A1 (fr) * 2013-12-19 2015-06-26 Cera Montage d’un ecran de protection acoustique sur un moteur de vehicule automobile
FR3015390A1 (fr) * 2013-12-19 2015-06-26 Cera Architecture de protection acoustique par un ecran dispose sur un moteur de vehicule automobile

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864109A (en) * 1973-02-02 1975-02-04 Inter Nation Research Corp Air filter
US6251151B1 (en) * 1998-09-10 2001-06-26 Honda Giken Kogyo Kabushiki Kaisha Air cleaner having a curved guide surface for airflow to an air cleaning element
FR2806999A1 (fr) * 2000-03-28 2001-10-05 Solvay Couvercle de compartiment moteur d'un vehicule
DE10063778A1 (de) * 2000-12-21 2002-09-12 Opel Adam Ag Sicherheitseinrichtung als Fussgängeraufprallschutz an Kraftfahrzeugen
EP1308373A1 (fr) 2001-11-06 2003-05-07 Dario Di Camillo Récipient multifonctionel pour le compartiment moteur d'un véhicule automobile
EP1745968A2 (fr) * 2005-07-19 2007-01-24 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Groupe motopropulseur à filtre à air pour automobile
WO2007131497A1 (fr) 2006-05-17 2007-11-22 Montaplast Gmbh Boîtier pouvant être fixé sur un véhicule automobile, à fonction intégrée de protection des piétons

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864109A (en) * 1973-02-02 1975-02-04 Inter Nation Research Corp Air filter
US6251151B1 (en) * 1998-09-10 2001-06-26 Honda Giken Kogyo Kabushiki Kaisha Air cleaner having a curved guide surface for airflow to an air cleaning element
FR2806999A1 (fr) * 2000-03-28 2001-10-05 Solvay Couvercle de compartiment moteur d'un vehicule
DE10063778A1 (de) * 2000-12-21 2002-09-12 Opel Adam Ag Sicherheitseinrichtung als Fussgängeraufprallschutz an Kraftfahrzeugen
EP1308373A1 (fr) 2001-11-06 2003-05-07 Dario Di Camillo Récipient multifonctionel pour le compartiment moteur d'un véhicule automobile
EP1745968A2 (fr) * 2005-07-19 2007-01-24 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Groupe motopropulseur à filtre à air pour automobile
WO2007131497A1 (fr) 2006-05-17 2007-11-22 Montaplast Gmbh Boîtier pouvant être fixé sur un véhicule automobile, à fonction intégrée de protection des piétons

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DWORSCHAK, NEUHAUSER, RECHBERGER, STASTNY: "Der neue Sechszylinder-Dieselmotor von BMW", MTZ, vol. 70, February 2009 (2009-02-01), pages 108 - 115, XP002570855 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2860384A1 (fr) * 2013-10-10 2015-04-15 Hyundai Motor Company Épurateur d'air dans un véhicule
CN104564444B (zh) * 2013-10-10 2018-12-07 现代自动车株式会社 车辆中的空气滤清器
FR3015389A1 (fr) * 2013-12-19 2015-06-26 Cera Montage d’un ecran de protection acoustique sur un moteur de vehicule automobile
FR3015390A1 (fr) * 2013-12-19 2015-06-26 Cera Architecture de protection acoustique par un ecran dispose sur un moteur de vehicule automobile

Also Published As

Publication number Publication date
ITBO20090390A1 (it) 2010-12-18
IT1394274B1 (it) 2012-06-06

Similar Documents

Publication Publication Date Title
CN104653266B (zh) 用于cda发动机的双排放系统的结构
US20120006306A1 (en) Housing for an Internal Combustion Engine with a PCV Valve for Crankcase Ventilation, and a Method for Attaching a PCV Valve to a Housing
US7686130B1 (en) Dual mode vehicle exhaust system and associated method
ES2181646T3 (es) Sistema de aspiracion de aire para un motor de combustion interna.
JP4254349B2 (ja) 内燃機関の吸気装置
EP2275664A1 (fr) Dispositif de filtration d'air d'aspiration d'un moteur pour un véhicule
EP1469175A3 (fr) Système d'admission d'un moteur à combustion interne
CN203570402U (zh) 一种工程机械用消音器
US8516986B2 (en) Intake system for a vehicle
EP3029288B1 (fr) Dispositif de traitement de fuite des gaz pour moteur à combustion interne
JP2016535201A (ja) 動力車両
RU2565487C2 (ru) Устройство глушителя и автотранспортное средство, содержащее такое устройство глушителя
JP5525276B2 (ja) 内燃機関の吸気装置
JP4243832B2 (ja) エンジンの吸気構造
US10578089B2 (en) Air compressor noise dampener
CN100510373C (zh) 内燃机的进气装置
EP1433947A2 (fr) Dispositif de filtrage d'air pour moteur à combustion interne
JP4235946B2 (ja) エンジンの吸気構造
JP2003193923A (ja) エンジンの吸気装置
KR102024029B1 (ko) 자동차 흡기량 증가 장치
KR100966615B1 (ko) 자동차용 가변 흡기계
KR20120000208A (ko) 차량용 흡기매니폴드의 솔레노이드밸브 일체형 액추에이터
CN112696292A (zh) 用于发动机进气系统中的空气滤清器装置及其使用方法
JP6823481B2 (ja) 内燃機関
JP2002317719A (ja) エンジンのエアクリーナ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110720