EP3480450B1 - Épurateur d'air - Google Patents

Épurateur d'air Download PDF

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Publication number
EP3480450B1
EP3480450B1 EP18203644.2A EP18203644A EP3480450B1 EP 3480450 B1 EP3480450 B1 EP 3480450B1 EP 18203644 A EP18203644 A EP 18203644A EP 3480450 B1 EP3480450 B1 EP 3480450B1
Authority
EP
European Patent Office
Prior art keywords
case
cap
inlet
connection portion
opening
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.)
Active
Application number
EP18203644.2A
Other languages
German (de)
English (en)
Other versions
EP3480450A1 (fr
Inventor
Tatsuya Oyama
Yasutoshi MASUMATA
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.)
Toyota Boshoku Corp
Original Assignee
Toyota Boshoku Corp
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 Toyota Boshoku Corp filed Critical Toyota Boshoku Corp
Priority to PL18203644T priority Critical patent/PL3480450T3/pl
Publication of EP3480450A1 publication Critical patent/EP3480450A1/fr
Application granted granted Critical
Publication of EP3480450B1 publication Critical patent/EP3480450B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • 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
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings

Definitions

  • An air cleaner of this type is also disclosed in post published document EP 3 339 623 A1 .
  • document JP 2016-121584 A discloses an air cleaner of this type.
  • Such an air cleaner includes a case with an inlet, a cap with an outlet, and a filter element.
  • the filter element is positioned between a case opening of the case and a cap opening of the cap that faces the case opening. Intake air suctioned from the inlet is filtered through the filter element and is then supplied from the outlet to the internal combustion engine.
  • the air cleaner described above may be large, and space is limited since it is placed in a narrow space in the engine compartment of a vehicle.
  • An air cleaner according to the invention includes a case including a case body and an inlet, wherein the case body includes a case opening and a case peripheral wall surrounding the case opening, and the inlet is connected to the case peripheral wall; a cap including an outlet and a cap opening that faces the case opening; and a filter element including a filter and an annular sealing portion arranged on a circumferential edge of the filter, wherein the filter element is arranged between the case opening and the cap opening.
  • the case includes an annular sealing surface disposed on a circumferential edge of the case opening on an outer surface of the case body, wherein the sealing portion of the filter element contacts the sealing surface.
  • the inlet includes a connection portion connected to the case body.
  • the sealing surface includes a part of an outer surface of the connection portion.
  • a part of the outer surface of the connection portion in the inlet for the case body constitutes a part of the sealing surface, so that the height of the peripheral wall (case peripheral wall) of the case body is reduced.
  • the air cleaner 11 is configured to serve as the air cleaner of an on-board internal combustion engine mounted in the engine compartment of a vehicle.
  • the front and the rear of the front and rear direction of the vehicle will be simply referred to as “the front” and “the rear”
  • the right side and the left side when the vehicle is seen from behind will be simply referred to as “the right side” and “the left side.”
  • the air cleaner 11 includes a case 12, a cap 14, and a filter element 17.
  • the case 12 has a case opening 15, which is formed on the upper portion of the case 12 and has a rectangular shape in a plan view.
  • the cap 14 has an outlet 13 and a cap opening 16, which is formed on the lower portion of the cap 14 and has a rectangular shape that faces the case opening 15.
  • the filter element 17 is arranged between the case opening 15 and the cap opening 16.
  • the filter element 17 includes a rectangular filter 18 and a rectangular loop-shaped sealing portion 19 arranged on the circumferential edge of the filter 18.
  • the filter 18 is formed by folding a filter material sheet such as nonwoven fabric or filter paper.
  • the sealing portion 19 is formed by an elastic member such as closed-cell polyurethane.
  • the case 12 includes a flat case body 22, an inlet 23, and a resonator 24.
  • the case body 22 includes the case opening 15, a case peripheral wall 20 surrounding the case opening 15, and a bottom wall 21.
  • the inlet 23 is connected to the case peripheral wall 20.
  • the resonator 24 is connected to an intermediate position of the inlet 23.
  • the inlet 23, as shown in Fig. 1 has a portion that acts as an intake duct that forms an intake passage.
  • the resonator 24 is integrally formed with the inlet 23.
  • a rectangular loop-shaped sealing surface 25 is formed on the entire circumferential edge of the case opening 15 on the upper surface (outer surface) of the case body 22.
  • the sealing portion 19 of the filter element 17 is brought into contact with the sealing surface 25.
  • the inlet 23 has a connection portion 26 connected to the case body 22.
  • the sealing surface 25 includes a part of the outer surface of the connection portion 26 in the inlet 23. That is, the part of the outer surface of the connection portion 26 in the inlet 23 constitutes a part of the sealing surface 25. Specifically, the part of the outer surface of the connection portion 26 in the inlet 23 constitutes a long side of the sealing surface 25 on the front.
  • connection portion 26 of the inlet 23 is connected to the front surface of the case peripheral wall 20.
  • the connection portion 26 is connected to a portion of the case peripheral wall 20 that corresponds to the front surface of the case body 22. That is, the connection portion 26 is connected, in the entire width of the case opening 15, to a portion of the case peripheral wall 20 that corresponds to one of the long sides of the case opening 15.
  • the circumferential edge of the inlet 23 extends from the connection portion 26 toward the left side in the vehicle width direction, and then makes a U-turn and extends toward the right side.
  • the case 12 is separately formed by a first case molding 30 and a second case molding 31 placed beneath the first case molding 30.
  • the first case molding 30 and the second case molding 31 may be made of a rigid synthetic plastic, but is not limited thereto.
  • the first case molding 30 includes a first case peripheral wall 32 surrounding the case opening 15, a first inlet half 33, which has a shape of a half tube and extends from the first case peripheral wall 32, and a first resonator half 34, which has a shape of a half tube and extends from the first inlet half 33.
  • the second case molding 31 includes the bottom wall 21, a second case peripheral wall 36 extending from the bottom wall 21, a second inlet half 37, which has a shape of a half tube and extends from the second case peripheral wall 36, and a second resonator half 38 that has a shape of a half tube and extends from the second inlet half 37.
  • the edge of the first case molding 30 and the edge of the second case molding 31 are joined together by vibration welding, for example, to form the case 12.
  • the edge of the first case peripheral wall 32 and the edge of the second case peripheral wall 36 are joined together to form the case body 22. Further, the edge of the first inlet half 33 and the edge of the second inlet half 37 are joined together to form the inlet 23. Further, the edge of the first resonator half 34 and the edge of the second resonator half 38 are joined together to form the Helmholtz resonator 24.
  • outer ribs 40 are formed on the outer surface of the upper wall of the connection portion 26 of the inlet 23 (first inlet half 33).
  • the outer surface of the upper wall of the connection portion 26 includes a portion that constitutes a part of the sealing surface 25, and a pair of outer ribs 40 is formed on both sides of that portion in the extension direction.
  • the extension direction corresponds to the right and left direction serving as the vehicle width direction.
  • the outer ribs 40 extend in the right and left direction.
  • the outer ribs 40 of each pair are arranged such that the outer ribs 40 are slightly spaced apart in the front and rear direction. In this case, the outer ribs 40 of each pair are arranged on the corner of one of the right and left ends of the connection portion 26 such that the outer ribs 40 reach the upper surface and the corresponding side surface of the outer surface of the connection portion 26.
  • a lattice rib 41 serving as an example of an inner rib, is arranged on the inner surface positioned on the reverse side of the outer surface of the upper wall of the connection portion 26 of the inlet 23 (first inlet half 33).
  • the lattice rib 41 is formed by arranging, in a lattice-like manner, plate-like first ribs 42 extending in a protruding direction of the connection portion 26 from the case body 22 and plate-like second ribs 43 extending in a direction orthogonal to (crossing) the protruding direction.
  • Figs. 4 , 6 , and 7 a lattice rib 41, serving as an example of an inner rib, is arranged on the inner surface positioned on the reverse side of the outer surface of the upper wall of the connection portion 26 of the inlet 23 (first inlet half 33).
  • the lattice rib 41 is formed by arranging, in a lattice-like manner, plate-like first ribs 42 extending in a
  • the protruding direction corresponds to the front direction and the direction orthogonal to (crossing) the front direction, which is the protruding direction, corresponds to the right and left direction.
  • the number of the first ribs 42 may be eleven and the number of the second ribs 43 may be three.
  • the three second ribs 43 are arranged to be adjacent to the case opening 15. Specifically, these three second ribs 43 extend to the full width in the right and left direction of the upper wall of the connection portion 26 such that they are evenly spaced apart in parallel in the front and rear direction. Both ends of each second rib 43 in the right and left direction are curved to reach the inner surface of the upper wall and the inner surfaces of the right and left side walls of the connection portion 26.
  • the eleven first ribs 42 are arranged to the full width in the right and left direction of the upper wall of the connection portion 26 such that they are evenly spaced apart in parallel in the right and left direction.
  • Each first rib 42 extends from the rearmost second rib 43 among the three second ribs 43 toward the front beyond the forwardmost second rib 43.
  • Each first rib 42 has a streamlined portion in the front beyond the forwardmost second rib 43 among the three second ribs 43. That is, each first rib 42 has a rear portion that forms a lattice with each second rib 43 and a streamlined front portion.
  • the cap 14 includes a flat cap body 47 and the outlet 13 integrally formed with the flat cap body 47.
  • the cap body 47 includes a cap peripheral wall 45 surrounding the cap opening 16 and a top wall 46.
  • a flange 48 is formed on the entire circumferential edge of the cap opening 16.
  • Four supports 49 for tiltably supporting the clamps 27 are arranged on positions that correspond to the corners of the cap body 47.
  • the outlet 13 is connected to the rear surface of the cap peripheral wall 45 of the cap body 47 and protrudes to the rear. The end of the downstream side of the outlet 13 is directed downward.
  • the cap 14 is separately formed by a first cap molding 50 and a second cap molding 51 placed on the first cap molding 50.
  • the first cap molding 50 and the second cap molding 51 may be made of a rigid synthetic plastic, but are not limited thereto.
  • the first cap molding 50 includes a first cap peripheral wall 52 surrounding the cap opening 16 and a first outlet molding 53 extending toward the rear from the first cap peripheral wall 52.
  • the first cap molding 50 includes an outer peripheral wall 54 for covering the outer surface of the cap body 47.
  • the outer peripheral wall 54 has the supports 49.
  • the second cap molding 51 includes the top wall 46 of the cap body 47, a second cap peripheral wall 55 extending from the top wall 46, and a second outlet molding 56 extending toward the rear from the second cap peripheral wall 55.
  • the edge of the first cap molding 50 and the edge of the second cap molding 51 are joined together by vibration welding, for example, to form the cap 14.
  • the edge of the first cap peripheral wall 52 and the edge of the second cap peripheral wall 55 are joined together to form the cap body 47. Further, the edge of the first outlet molding 53 and the edge of the second outlet molding 56 are joined together to form the outlet 13.
  • the sealing surface 25 of the case body 22 and the flange 48 of the cap 14 pinch the sealing portion 19 of the filter element 17, so that the space between the flange 48 of the cap 14 and the sealing portion 19 of the filter element 17 is sealed.
  • the sealing surface 25 of the case body 22 includes a part of the outer surface of the connection portion 26 in the inlet 23 for the case body 22. Further, the connection portion 26 is connected, in the entire width of the case opening 15, to a portion of the case peripheral wall 20 that corresponds to one of the long sides of the case opening 15. Accordingly, the connection portion 26 has a flat shape, which is long in the right and left direction, and the height of the case peripheral wall 20 of the case body 22 is reduced, so that the air cleaner 11 is reduced in size.
  • connection portion 26 When the air cleaner 11 is mounted in the engine compartment of the vehicle, where the temperature becomes high due to the heat of the engine, the upper wall of the connection portion 26 having the flat shape, which is long in the right and left direction, is likely to experience creep deformation such that the upper wall sags downward.
  • the connection portion 26 is reinforced on the inside and outside with the lattice rib 41 and the outer ribs 40. This effectively prevents the creep deformation of the connection portion 26.
  • the lattice rib 41 is arranged on the inner surface of the connection portion 26 out of the main flow of intake air. This prevents an increase in the pressure loss of the intake air by the lattice rib 41.
  • the case opening 15 of the case body 22 may not necessarily have a rectangular shape in a plan view. That is, the case opening 15 may have a square shape in a plan view, for example.
  • the inlet 23 does not necessarily need to be connected to a portion of the case peripheral wall 20 that corresponds to one of the long sides of the case opening 15. That is, the inlet 23 may be connected to a portion of the case peripheral wall 20 that corresponds to one of the short sides of the case opening 15.
  • connection portion 26 of the inlet 23 does not necessarily need to be connected, in the entire width of the case opening 15, to a portion that corresponds to one of the long sides of the case opening 15 in the case peripheral wall 20.
  • outer ribs 40 may be changed where necessary.
  • the outer ribs 40 may be omitted.
  • inner rib does not necessarily need to be the lattice rib 41. That is, the inner rib may be configured by the first ribs 42 alone or the second ribs 43 alone.
  • the number and the shape of the first ribs 42 and the second ribs 43 may be changed according to use.
  • the lattice rib 41 inner rib
  • the lattice rib 41 may be omitted.
  • the air cleaner 11 does not necessarily need to be the air cleaner of an onboard internal combustion engine mounted in the engine compartment of a vehicle. That is, the air cleaner 11 may be employed for a device other than onboard internal combustion engines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (3)

  1. Epurateur d'air comprenant :
    un boîtier (12) comprenant un corps de boîtier (22) et une entrée (23), dans lequel le corps de boîtier (22) comprend une ouverture de boîtier (15) et une paroi périphérique de boîtier (20) entourant l'ouverture de boîtier (15) et l'entrée (23) est raccordée à la paroi périphérique de boîtier (20) ;
    un capuchon (14) comprenant une sortie (13) et une ouverture de capuchon (16) qui fait face à l'ouverture de boîtier (15) ; et
    un élément de filtre (17) comprenant une filtre (18) et une partie d'étanchéité annulaire (19) agencée sur un bord circonférentiel du filtre (18), dans lequel l'élément de filtre (17) est agencé entre l'ouverture de boîtier (15) et l'ouverture de capuchon (16),
    dans lequel :
    le boîtier (12) comprend une surface d'étanchéité annulaire (25) disposée sur un bord circonférentiel de l'ouverture de boîtier (15) sur une surface externe du corps de boîtier (22), dans lequel la partie d'étanchéité (19) de l'élément de filtre (17) est en contact avec la surface d'étanchéité (25),
    l'entrée (23) comprend une partie de raccordement (26) raccordée au corps de boîtier (22), et
    la surface d'étanchéité (25) comprend une partie d'une surface externe de la partie de raccordement (26) ;
    caractérisé en ce qu'une nervure interne (41) est agencée sur une surface interne positionnée sur un côté inverse de la surface externe de la partie de raccordement (26),
    la nervure interne étant une nervure de treillis (41) ayant une forme de treillis, et
    la nervure de treillis (41) comprenant une pluralité de premières nervures (42) s'étendant dans une direction en saillie de la partie de raccordement (26) à partir du corps de boîtier (22) et une pluralité de secondes nervures (43) s'étendant dans une direction traversant la direction en saillie.
  2. Epurateur d'air selon la revendication 1, caractérisé en ce que la surface externe de la partie de raccordement (26) comprend une partie qui constitue une partie de la surface d'étanchéité (25), dans lequel une nervure externe (40) est formée des deux côtés de la partie dans une direction d'extension de la partie, la partie constituant la partie de la surface d'étanchéité (25) .
  3. Epurateur d'air selon la revendication 1 ou 2, caractérisé en ce que :
    l'ouverture de boîtier (15) a une forme rectangulaire sur une vue en plan, et
    l'entrée (23) est raccordée à une partie de la paroi périphérique de boîtier (20) qui correspond à l'un des côtés longs de l'ouverture de boîtier (15).
EP18203644.2A 2017-11-06 2018-10-31 Épurateur d'air Active EP3480450B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18203644T PL3480450T3 (pl) 2017-11-06 2018-10-31 Oczyszczacz powietrza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017213848A JP2019085906A (ja) 2017-11-06 2017-11-06 エアクリーナ

Publications (2)

Publication Number Publication Date
EP3480450A1 EP3480450A1 (fr) 2019-05-08
EP3480450B1 true EP3480450B1 (fr) 2020-09-23

Family

ID=64048886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18203644.2A Active EP3480450B1 (fr) 2017-11-06 2018-10-31 Épurateur d'air

Country Status (3)

Country Link
EP (1) EP3480450B1 (fr)
JP (1) JP2019085906A (fr)
PL (1) PL3480450T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110107432B (zh) * 2019-06-10 2024-03-01 瑞安市环嘉滤清器有限公司 一种空气滤清器及其滤芯

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4254349B2 (ja) * 2003-05-28 2009-04-15 スズキ株式会社 内燃機関の吸気装置
JP6028599B2 (ja) * 2013-02-06 2016-11-16 スズキ株式会社 エアークリーナー
JP2016121584A (ja) * 2014-12-24 2016-07-07 トヨタ紡織株式会社 エアクリーナーおよびフィルターエレメント
CN105402054B (zh) * 2015-12-30 2019-01-25 无锡开普机械有限公司 一种用于电喷数码发电机组的空滤组件
JP6790809B2 (ja) * 2016-12-26 2020-11-25 トヨタ紡織株式会社 内燃機関のエアクリーナ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3480450T3 (pl) 2021-01-25
EP3480450A1 (fr) 2019-05-08
JP2019085906A (ja) 2019-06-06

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