EP0233809A1 - Luftfilter, insbesondere für Brennkraftmaschinen - Google Patents

Luftfilter, insbesondere für Brennkraftmaschinen Download PDF

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Publication number
EP0233809A1
EP0233809A1 EP87400133A EP87400133A EP0233809A1 EP 0233809 A1 EP0233809 A1 EP 0233809A1 EP 87400133 A EP87400133 A EP 87400133A EP 87400133 A EP87400133 A EP 87400133A EP 0233809 A1 EP0233809 A1 EP 0233809A1
Authority
EP
European Patent Office
Prior art keywords
grid
air filter
sleeve
threaded rod
neck
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
Application number
EP87400133A
Other languages
English (en)
French (fr)
Other versions
EP0233809B1 (de
Inventor
Jacques Virgille
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
Aciers et Outillage Peugeot SA
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 Aciers et Outillage Peugeot SA, ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical Aciers et Outillage Peugeot SA
Publication of EP0233809A1 publication Critical patent/EP0233809A1/de
Application granted granted Critical
Publication of EP0233809B1 publication Critical patent/EP0233809B1/de
Expired 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
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • 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
    • F02M35/14—Combined air cleaners and silencers

Definitions

  • the present invention relates to an improved air filter in particular for an internal combustion engine.
  • air filters are known in the state of the art. These air filters generally include a box on which a cover is fixed.
  • the cover is fixed to the housing by means of a nut cooperating with one end of a threaded rod whose other end cooperates with for example the bottom of the case, to retain the cover on the case.
  • an air filter in particular for an internal combustion engine.
  • the cartridge of this air filter is connected by means of a central screw, in a leaktight manner, to the clean air tube.
  • the filter housing and the fresh air tube are made of plastic, the tube and the support surface of the cartridge being reinforced by a sheet metal sleeve incorporated in the molding and provided with an integrated collar.
  • the cuff has a cross-member which serves to receive the central screw while the integrated collar serves as a bearing surface for the cartridge.
  • Air filters for thermal engines comprising a box defining a resonator volume called a Helmoltz resonator, connected to an intake chamber by means of a roughly cylindrical neck.
  • a cover is fixed to said housing by means of a nut screwed onto a free end of a threaded rod, the other end of which having a head, generally prismatic, is fixed in the axis of the neck, for example by means of a certain number of ribs.
  • a vibratory and acoustic control grid is arranged on the end of the neck, opening into the intake chamber, around the threaded rod, and this grid is held in position by means of a spacer and a nut cooperating with the threaded rod.
  • this nut can be released from the threaded rod , no longer holding the cover in position, so that it can leave its closed position of the filter housing.
  • the object of the invention is therefore to solve the problems mentioned above.
  • the invention relates to an improved air filter, in particular for an internal combustion engine, comprising a filter box defining a resonator volume connected to an intake chamber by means of a nearly cylindrical neck, and a cover fixed on said case by means of a nut screwed onto a free end of a threaded rod, the other end of which is fixed in the axis of the neck, a vibratory and acoustic control grid being arranged on the end of the neck, opening into the inlet chamber, around the threaded rod, characterized in that said grid comprises a tubular central sleeve having: a tapped part cooperating with the threaded rod to hold said grid in position on said end of the neck.
  • the tapped portion of the sleeve is obtained by self-tapping a portion of reduced section of the inner surface of the sleeve, when it is placed on the threaded rod.
  • an air filter in particular for a heat engine, comprises a box 1 composed of a body 2 roughly cylindrical that connected to a bottom wall 3 in a sealed manner, generally by welding, to form a resonator volume 4 still known in physics under the name of Helmaltz resonator.
  • This resonator volume 4 is connected to an intake chamber 5 by means of a roughly cylindrical neck 6.
  • the filter also includes a cover 7 fixed to the housing 1 by means of a threaded rod 8, one of the ends of which has a head 9 fixed in the axis of the neck.
  • This head 9, generally prismatic, is embedded in a connecting piece 10, for example by overmolding or ultrasound, disposed on the axis of the neck and connected to the inner wall of this neck by means of ribs 11.
  • a grid 12 of vibratory and acoustic control is arranged on the end of the neck 6, opening into the intake chamber 5, around the threaded rod. As is known, this grid has a number of air passage holes between the resonator volume and the intake chamber.
  • This grid is held in position by a spacer 13 disposed around the threaded rod 8 and one end of which bears against this grid 12 and the other end of which receives the tightening action of a nut 14 making it possible to keep the spacer and the grid in position.
  • the cover is fixed to the housing, for example by means of a wing nut 15 and a washer 16, arranged on the free end of the threaded rod.
  • this grid fixing assembly has a certain number of drawbacks.
  • a grid 17 of vibratory and acoustic control is also arranged on the end of the neck 6, opening into the intake chamber 5, around the threaded rod 20.
  • This grid 17 includes a sleeve central tubular 18 extending around a part of the threaded rod and having a threaded part 19 cooperating with the threaded rod 20 to hold said grid in position on the corresponding end of the neck 6.
  • the threaded rod 20 is fixed so analogous to that which has already been described above, that is to say by means of a connecting piece 10 and ribs 11.
  • the cover 7 is also fixed to the body 2 of the filter housing by means of 'a nut 21 screwed onto the corresponding end of this threaded rod.
  • the threaded rod can be in different forms. For example, it can be threaded over its entire length or on its upper part only. In the latter case, the threaded part may have a diameter greater than the diameter of the non-threaded part. It goes without saying that this threaded part can be obtained by any known process, for example by rolling with a thumbwheel or threading with a die or with the cutting tool.
  • the inner surface of the tubular central sleeve 18 of the grid 17 presents a portion 19 of reduced cross section which, as has been J mentioned previously, is intended to cooperate with the threaded rod to maintain the grid in position on the end of the neck.
  • the grid and the sleeve are advantageously molded in one piece, for example made of plastic, which allows, during the positioning of the grid and the sleeve on the threaded rod, to obtain a self-tapping of the part 19 when this part comes into contact with the threaded rod.
  • this threaded rod behaves as a tap forming by deformation without cutting a thread in the part 19 and thereby mount the assembly on the threaded rod so Frei- n ed in opposing unscrewing of this assembly, of the threaded rod.
  • the grid 17 has on its circumference, an annular rim 22 for centering the grid on the neck.
  • the grid 17 is roughly flat and is arranged at one end of said sleeve.
  • Reinforcement ribs 23, 24 are provided between the grid and the sleeve, so as to stiffen the assembly. These ribs can be arranged radially around the sleeve or tangentially to it. These ribs make it possible to improve the resistance of the assembly to the forces which are applied to it, for example during assembly or disassembly of this assembly, and to operating forces such as for example pressure waves and phenomena. aeraulics.
  • the number of ribs is determined according to the forces which are exerted on 1 set and. as can be seen in Fig. 4. these ribs can for example be offset around the central tubular sleeve 18 so as to reduce the shear stresses during, for example, the screwing of the assembly onto the threaded rod. It goes without saying that the position of the ribs must take account of the fact that the pressure drops, depending on the shapes of the filter. must remain compatible with an operation correct from the intake line.
  • this grid 25 has a flared shape, for example of frustoconical section, of so that the profile thereof promotes the flow of air and thus minimizes the pressure drops of the filtration unit.
  • This grid 25 can be arranged at one end of the sleeve 26 comprising, as in the previous embodiment, an inner surface part 27 of reduced section.
  • the end of the sleeve close to the grid 25 can also be arranged roughly in the plane defined by the large base of this grid.
  • the grid also has an annular rim 28 for centering the latter on the neck.
  • the holes made in the grid can be parallel to the axis of the sleeve or angularly offset relative to the latter.

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)
  • Characterised By The Charging Evacuation (AREA)
EP19870400133 1986-01-24 1987-01-20 Luftfilter, insbesondere für Brennkraftmaschinen Expired EP0233809B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601041 1986-01-24
FR8601041A FR2593856B1 (fr) 1986-01-24 1986-01-24 Filtre a air perfectionne, notamment pour moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP0233809A1 true EP0233809A1 (de) 1987-08-26
EP0233809B1 EP0233809B1 (de) 1989-06-07

Family

ID=9331474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870400133 Expired EP0233809B1 (de) 1986-01-24 1987-01-20 Luftfilter, insbesondere für Brennkraftmaschinen

Country Status (4)

Country Link
EP (1) EP0233809B1 (de)
DE (1) DE3760229D1 (de)
ES (1) ES2008868B3 (de)
FR (1) FR2593856B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896148A2 (de) * 1997-05-08 1999-02-10 Siemens Canada Limited Kombinierter Luftfilter und Resonanzkammer
EP1582734A1 (de) * 2004-03-31 2005-10-05 Mann+Hummel Gmbh Ansaugsystem einer Brennkraftmaschine
FR2919826A1 (fr) * 2007-08-09 2009-02-13 Peugeot Citroen Automobiles Sa Circuit d'admission d'air possedant deux dispositifs de filtration
EP3757381A1 (de) * 2019-06-28 2020-12-30 Yamaha Hatsudoki Kabushiki Kaisha Grätschsitzfahrzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149836A (en) * 1935-11-04 1939-03-07 Gen Motors Corp Intake silencer
FR1040686A (fr) * 1951-04-12 1953-10-16 Filtres à air
FR75684E (fr) * 1959-05-06 1961-07-28 Normande D Emboutissage Soc Dispositif silencieux pour écoulement pulsatoire des gaz
FR1394278A (fr) * 1964-02-21 1965-04-02 Prec Mecanique Labinal Perfectionnements aux filtres pour fluides gazeux
FR1555136A (de) * 1967-02-23 1969-01-24

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149836A (en) * 1935-11-04 1939-03-07 Gen Motors Corp Intake silencer
FR1040686A (fr) * 1951-04-12 1953-10-16 Filtres à air
FR75684E (fr) * 1959-05-06 1961-07-28 Normande D Emboutissage Soc Dispositif silencieux pour écoulement pulsatoire des gaz
FR1394278A (fr) * 1964-02-21 1965-04-02 Prec Mecanique Labinal Perfectionnements aux filtres pour fluides gazeux
FR1555136A (de) * 1967-02-23 1969-01-24

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896148A2 (de) * 1997-05-08 1999-02-10 Siemens Canada Limited Kombinierter Luftfilter und Resonanzkammer
EP0896148A3 (de) * 1997-05-08 2000-01-05 Siemens Canada Limited Kombinierter Luftfilter und Resonanzkammer
EP1582734A1 (de) * 2004-03-31 2005-10-05 Mann+Hummel Gmbh Ansaugsystem einer Brennkraftmaschine
FR2919826A1 (fr) * 2007-08-09 2009-02-13 Peugeot Citroen Automobiles Sa Circuit d'admission d'air possedant deux dispositifs de filtration
EP3757381A1 (de) * 2019-06-28 2020-12-30 Yamaha Hatsudoki Kabushiki Kaisha Grätschsitzfahrzeug
US11015554B2 (en) 2019-06-28 2021-05-25 Yamaha Hatsudoki Kabushiki Kaisha Straddled vehicle

Also Published As

Publication number Publication date
FR2593856A1 (fr) 1987-08-07
EP0233809B1 (de) 1989-06-07
ES2008868B3 (es) 1989-08-16
FR2593856B1 (fr) 1988-05-27
DE3760229D1 (en) 1989-07-13

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