WO2002066812A1 - Procede permettant d'estimer la quantite d'air se trouvant dans les tubulures d'admission et d'echappement d'un moteur a combustion interne pourvu d'un dispositif rge - Google Patents

Procede permettant d'estimer la quantite d'air se trouvant dans les tubulures d'admission et d'echappement d'un moteur a combustion interne pourvu d'un dispositif rge Download PDF

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Publication number
WO2002066812A1
WO2002066812A1 PCT/IB2002/000540 IB0200540W WO02066812A1 WO 2002066812 A1 WO2002066812 A1 WO 2002066812A1 IB 0200540 W IB0200540 W IB 0200540W WO 02066812 A1 WO02066812 A1 WO 02066812A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
air
tubular housing
filtering
connection
Prior art date
Application number
PCT/IB2002/000540
Other languages
English (en)
Other versions
WO2002066812A8 (fr
Inventor
Gaetano Bergami
Original Assignee
Bmc S.R.L.
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 S.R.L. filed Critical Bmc S.R.L.
Priority to AU2002234822A priority Critical patent/AU2002234822A1/en
Priority to JP2002566104A priority patent/JP2004524471A/ja
Publication of WO2002066812A1 publication Critical patent/WO2002066812A1/fr
Publication of WO2002066812A8 publication Critical patent/WO2002066812A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge 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
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02483—Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/201—Conical shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to devices for relates to devices for filtering the combustive air for engine for instance internal combustion engine.
  • the present invention refers to a device for filtering the intake air of internal combustion, supercharged and aspirated, engines especially with high performances.
  • the known air filters are normally flattened, cylindrical or conical shaped and are contained into 0 a related case with inlet openings of the environmental air and outlet openings of the filtered air.
  • filters for the use in sporting engines the usually called “sprint filter”, which have filters truncated cone shaped which are enclosed in metallic containers shaped as almost conic or truncated-conic portions.
  • the filtering elements of said known filters are made of 5 polyester or paper and have heavy flanges and/or caps generally made of polyurethane.
  • the main drawback of said known devices consists in that the filter polyurethane flange can be detached from the filtering portion because cracks and yielding due to the aging of the material so causing the non-filtering of the air, the possible obstruction of the ducts with motor stop and 0 the possible entry into the motor of fragments of the same filter or its support.
  • Another drawback consists in the high air flow resistance downstream the filter caused by the turbulence.
  • a further drawback consists in that the polyurethane flanges and caps are too heavy and expensive and cannot withstand temperatures greater than 90° C, possible in the high performance engines.
  • Another drawback consists in the too high temperature achieved inside the known device containers because the metallic material used for said containers.
  • the main object of the present invention is to propose a device for filtering the intake air of internal combustion engines which is very sturdy and reliable, fit to withstand typical mechanical stresses of the sporting vehicles and temperatures up to around 250° C and at the same time light and suitable to reduce air flow resistances.
  • Further object of the present invention is to propose a device fit to thermally insulate the crossing air flow, without the sponge effect and having a high air filtering value and a low production cost.
  • Further object is to propose a device having a life greater than a distance of about 300.000 km, however usable with a very low maintenance and having a filter easy to dispose, because primarily made of a natural material.
  • Another object is to propose a device having small external dimensions still preserving the most wide internal volume.
  • figure 1 shows a longitudinal section view of the preferred embodiment of the device object of the present invention
  • figure 2 shows a section view according to the plane II-II of the figure 1 device, in which some parts have been removed for better underlining others
  • figures from 3 to 6 show longitudinal section views of corresponding variants of the device
  • figure 7 shows a plan view of the device of figure 6
  • - figure 8 shows a section view according to the plane VHI-V ⁇ i of figure 7.
  • numeral 1 indicates a device for filtering the intake air of internal combustion engine including a filter 33, a tubular housing 2 for the filter 33 and support means 4.
  • the tubular housing 2 right cylindrical shaped, has opening portions lower 9 and upper 10 and is made preferably of carbon fiber.
  • duct means 8 are fixed to the tubular housing 2 through fastener means 15, for instance consisting of screws or pins; the duct means 8 have an upper mouthpiece 18 extending outwardly the housing 2 and an upper opening 7 for the air flow.
  • Fillet means 11 are carried out in the duct means 8 and consist of a curved fillet surface which conveys the aerodynamic air flow.
  • the fillet means 11 of the duct means 8 form a shoulder 24 with the upper opening portion 10.
  • the filter 33 includes at least a filtering element 3, for instance made of cotton saturated with low viscosity oil enclosed between two layers of metallic net, for instance made of aluminium.
  • the wall of the filtering element 3 is refolded several time at saw teeth in order to increase the surface and is approximately cylinder shaped.
  • An end of the filter 33 is fixed, for instance by means of resins, to an annular housing of the support means 4 that are made of, for instance, carbon fibre or nylon strengthened with glass fibre.
  • the support means 4 have a lower mouthpiece 17 which extends outwardly the housing 2 and has a lower opening 5 for the air flow.
  • the free end 20 of the filter 33 is connected to at least a three connection means 21 which mate the inner wall of the housing 2 in correspondence of the upper opening portion 10.
  • connection between the free end 20 of the filter 33 and each of the connecting means 21, is carried out by an annular mean annular mean 22 fixed to said free end 20, for instance by means of resins.
  • the support means 4 are fixed to the lower opening portion 9 of the tubular housing 2 through fastener means 15, for instance consisting of screws or clamps 16, and the connection means 21 match the shoulder 24.
  • the annular mean 22 is centrally provided with air deflectors 6 having a conic shape with concave profile 6a or convex 6b or triangular 6c.
  • the air deflectors 6 obstruct completely the free end 20 of the filter 33 and protrude inwardly this latter.
  • the profile shape of the air deflectors 6 is defined according to the air speed and the dimensional characteristics of the filter 33.
  • connection means 21, the annular mean 22 and the air deflectors 6 are made in a single body of carbon fibre or nylon strengthened with glass fibre.
  • connection means 21 can be fixed to the tubular housing 2 or to the duct means 8 and that in the assemblage condition M, the connection means 21 may match the annular mean 22.
  • connection mean 21 is shaped like an aerodynamic fin having a leading edge 23 directed in the air flow direction.
  • Each leading edge 23 has a substantially radial development with respect to the filter 33.
  • each connection mean 21 The chord, the profile and the possible twist of each fin, constituting each connection mean 21, depend on the dimensional characteristics of the device 1 and on the air speed and, generally they have values inversely proportional to said speed.
  • the operation of the preferred embodiment of the device 1, provides that the upper mouthpiece 18 is connected, for instance through clamps, to an intake collector of the combustive air of a combustion engine.
  • the engine starting provokes the air flow which is sucked, by depression, through the lower opening 5 entering inside the filter 33.
  • the air deflectors 6 contribute to the homogeneous distribution of the air flow through the filtering element 3. This latter holds dusts and generally the impurities carried by the air flow flowing in the hollow space between the filtering element 3 and the tubular housing 2.
  • connection means 21 whose aerodynamic fin shape contributes to regularize said flow and to reduce its turbulence and, therefore to reduce the aerodynamic resistance.
  • the fillet means 11 direct the flow up to the upper opening 7 and, thus in the engine collector.
  • connection means 21 avoid radial oscillations of the free end 20 of the filter 33 and the matching of the connection means 21 against the shoulder 24 avoids axial movements of the filter 33. Therefore the connection means 21 avoid that the mechanical stresses, such as shocks and vibrations, of the mean on which the device 1 is installed, stress excessively the junction between the filtering element 3 and the support means 4.
  • connection means 21 advantageously strengthen the device.
  • tubular housing 2 and/or the filter have a truncated conical shape and/or an oval section.
  • connection means 21 and the annular mean 22 are carried out in a single body made of carbon fibre or nylon strengthened with glass fibre and the air deflectors 6 are fixed to the annular mean and are carried out in cotton interposed between two metallic nets.
  • This variant provides an advantageous increase of the filtering surface and a reduction of the depression downstream the air deflectors 6, partially filled by the flow crossing them, with advantageous effects on the regularity of the flow and the flow rate.
  • the air deflectors 6 are external to the filtering element 3 and the tubular housing 2, the duct means 8 and the upper opening portion 7 are carried out in a single body and have a truncated conical shape.
  • the filter 33 has a truncated conical shape as well.
  • the lower mouthpiece 17 is connected to the engine collector and has a filleted shape, for instance a trombone shape, to convey the filtered air toward said collector.
  • the air flow enters in the device 1 from the upper opening 7.
  • the variant of figure 4 differs from the variant of figure 3 in that the tubular housing 2 is cylindrical and with a separated body from the duct means 8.
  • the variant of figure 5 differs from the variant of figure 4 in that the filter 33 and the lower mouthpiece 17 have a cylindrical shape.
  • the variant shown in the figures 6, 7 and 8 differs from the main embodiment of figure 1 in that includes fixing means 28, carried out in the duct means 8 in proximity of the upper opening 7 and fit for connecting the filtering device 1 to a flange 31 of a pressure gauge or a flowmeter 32, of known type for instance an hot-wire anemometer.
  • the flowmeter 32 is interposed between the upper mouthpiece 18 of the device 1 and an intake collector of the combustive air of a combustion engine and is fit to measure the flow rate of the air coming out from the filtering device 1.
  • the fixing means 28 consist substantially of a couple of threaded holes, carried out on corresponding protrusions, carried out in single body on the duct means 8, at the opposite sides of the upper opening 7.
  • the duct means 8 further have in correspondence of the upper opening 7, an annular seat 29, fit for housing a related gasket in order to guarantee the seal connection between the device 1 and the flowmeter 32.
  • duct means 8 It is provided on the duct means 8 a hollow protrusion 30 for the connection to possible engine devices or members, for instance for connecting a hose for the recovery of the oil vapours.
  • the protrusion 30 has a blind longitudinal hole 31 that, if required for allowing the flow communication, can be easily full perforated during the assemblage phase of the device 1 on the related engine. It is evident that in case the lower mouthpiece 17 is connected to the intake collector of the engine, the air flow entering into the device 1 through the upper opening 7, the fixing means 28, the annular seat 29, the protrusion 30 are carried out in the support means 4.
  • the main advantage of the present invention is to provide a device for filtering the intake air of internal combustion engines which is very sturdy and reliable, fit to withstand high mechanical stresses and temperatures up to around 250° C and at the same time light and suitable to reduce air flow resistances.
  • Further advantage of the present invention is to provide a device fit to thermally insulate the crossing air flow, without the sponge effect and having a high air filtering value, a low production cost, and a life greater than a distance of about 300.000 km, and having a filter easy to dispose.
  • Another advantage is to provide a device having small external dimensions still preserving the most wide internal volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

Cette invention concerne un dispositif servant à filtrer l'air d'admission de moteurs à combustion, et comportant un filtre (33) servant à intercepter l'air circulant le long d'un logement tubulaire (2) du filtre (33). Une extrémité de ce filtre est reliée à un embout (9) inférieur du logement (2) au moyen d'un élément de maintient (4). Ce dispositif (1) comporte une pluralité d'éléments de liaison (21) interposés entre les extrémités libres (20) dudit filtre (33) et le logement (2). Les éléments de liaison (21), qui se présentent sous la forme d'ailettes, servent à renforcer la liaison entre le logement tubulaire (2) et le filtre (33) et peuvent réguler la circulation d'air à l'intérieur du dispositif.
PCT/IB2002/000540 2001-02-23 2002-02-21 Procede permettant d'estimer la quantite d'air se trouvant dans les tubulures d'admission et d'echappement d'un moteur a combustion interne pourvu d'un dispositif rge WO2002066812A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002234822A AU2002234822A1 (en) 2001-02-23 2002-02-21 Device for filtering the intake air of combustion engines
JP2002566104A JP2004524471A (ja) 2001-02-23 2002-02-21 内燃機関の吸気を濾過するためのデバイス

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2001A000100 2001-02-23
IT2001BO000100A ITBO20010100A1 (it) 2001-02-23 2001-02-23 Dispositivi di filtraggio dell'aria di alimentazione di motori a combustione

Publications (2)

Publication Number Publication Date
WO2002066812A1 true WO2002066812A1 (fr) 2002-08-29
WO2002066812A8 WO2002066812A8 (fr) 2003-09-25

Family

ID=11439137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/000540 WO2002066812A1 (fr) 2001-02-23 2002-02-21 Procede permettant d'estimer la quantite d'air se trouvant dans les tubulures d'admission et d'echappement d'un moteur a combustion interne pourvu d'un dispositif rge

Country Status (4)

Country Link
JP (1) JP2004524471A (fr)
AU (1) AU2002234822A1 (fr)
IT (1) ITBO20010100A1 (fr)
WO (1) WO2002066812A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1621757A1 (fr) * 2004-07-29 2006-02-01 Jui-Fa HUANG Dispositif de filtrage d'air vertical avec une structure d'entrée d'air à haut debit et bidirectionnel
US7637972B2 (en) * 2004-02-12 2009-12-29 Bmc S.R.L. Low resistance air filter device
CN106139768A (zh) * 2015-03-27 2016-11-23 大南集团有限公司 一种吸收电离辐射的方法和组合物

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012112311A (ja) * 2010-11-25 2012-06-14 Toyota Boshoku Corp エアフィルタ及びエアクリーナ
JP5983374B2 (ja) * 2012-12-07 2016-08-31 株式会社デンソー エアクリーナ
KR102535969B1 (ko) * 2021-07-15 2023-05-26 대우조선해양 주식회사 선박의 연료공급시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD255673A1 (de) * 1986-11-05 1988-04-13 Ilka Luft & Kaeltetechnik Filterpatrone
US5106397A (en) * 1990-12-26 1992-04-21 Ford Motor Company Air cleaner/noise silencer assembly
US5549722A (en) * 1994-12-30 1996-08-27 Dana Corporation Air filter assemblies and a frustoconical air filter element for use with the assemblies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD255673A1 (de) * 1986-11-05 1988-04-13 Ilka Luft & Kaeltetechnik Filterpatrone
US5106397A (en) * 1990-12-26 1992-04-21 Ford Motor Company Air cleaner/noise silencer assembly
US5549722A (en) * 1994-12-30 1996-08-27 Dana Corporation Air filter assemblies and a frustoconical air filter element for use with the assemblies

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7637972B2 (en) * 2004-02-12 2009-12-29 Bmc S.R.L. Low resistance air filter device
EP1621757A1 (fr) * 2004-07-29 2006-02-01 Jui-Fa HUANG Dispositif de filtrage d'air vertical avec une structure d'entrée d'air à haut debit et bidirectionnel
CN106139768A (zh) * 2015-03-27 2016-11-23 大南集团有限公司 一种吸收电离辐射的方法和组合物

Also Published As

Publication number Publication date
AU2002234822A1 (en) 2002-09-04
ITBO20010100A0 (it) 2001-02-23
ITBO20010100A1 (it) 2002-08-23
JP2004524471A (ja) 2004-08-12
WO2002066812A8 (fr) 2003-09-25

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