EP1683959A1 - Filtre à air pour un véhicule - Google Patents

Filtre à air pour un véhicule Download PDF

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Publication number
EP1683959A1
EP1683959A1 EP05026458A EP05026458A EP1683959A1 EP 1683959 A1 EP1683959 A1 EP 1683959A1 EP 05026458 A EP05026458 A EP 05026458A EP 05026458 A EP05026458 A EP 05026458A EP 1683959 A1 EP1683959 A1 EP 1683959A1
Authority
EP
European Patent Office
Prior art keywords
air cleaner
filter element
disposed
air
vehicle
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
EP05026458A
Other languages
German (de)
English (en)
Other versions
EP1683959B1 (fr
Inventor
Kenichi Misaki
Yoichi Shihozawa
Jiro Morita
Masashi Koyanagi
Tsuyoshi Mochizuki
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1683959A1 publication Critical patent/EP1683959A1/fr
Application granted granted Critical
Publication of EP1683959B1 publication Critical patent/EP1683959B1/fr
Expired - Fee Related 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
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/162—Motorcycles; All-terrain vehicles, e.g. quads, snowmobiles; Small vehicles, e.g. forklifts
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10039—Intake ducts situated partly within or on the plenum chamber housing
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft

Definitions

  • the present invention relates to an air cleaner structure for a vehicle, which is suitable for a vehicle, such as a motorcycle, on which a V-type engine is mounted.
  • An air cleaner structure is publicly known, in which: an air cleaner is disposed above a V-type engine; an inlet portion is hanged into a V-bank valley positioned under the center of the bottom of the air cleaner; an air intake duct extending rearward from the vehicle front side is connected to the inlet portion; and suction funnels are extended downward in such positions as to sandwich the inlet portion and a filter element, which is connected to the inlet portion, from the front and rear thereof and are connected to front and rear cylinders, respectively (see Patent Document 1).
  • Patent Document 1 Japanese Patent Laid-Open Publication No. 2002-160686
  • the present invention has an object to enable the air cleaner box to be disposed at a position as low as possible.
  • Claim 1 concerning an air cleaner structure for a vehicle of the present application for solving the above problems is characterized in that, in a vehicle on which a V-type engine is mounted and in which an air cleaner is disposed above the engine, a plurality of suction funnels for sending cleaned air to each bank of cylinders of the V-type engine are disposed in an air cleaner box in such a manner that respective axes of the funnels intersect each other, and a tubular filter element is disposed so as to overlap one of the suction funnels.
  • Claim 2 is, in the above claim 1, characterized in that the filter element is vertically positioned, and is held by sandwiching the filter element by means of a vertically split air cleaner box from above and below.
  • Claim 3 is, in the above claim 1, characterized in that: the V-type engine is such that the banks of cylinders are disposed along a fore-and-aft direction; and the air cleaner is such that the filter element is disposed in the vehicle-body front side of the air cleaner box and that fresh air is introduced into the filter element from an opening provided in a front portion of the air cleaner box.
  • Claim 4 is, in the above claim 3, characterized by comprising an air intake duct curvedly extending from the opening provided in the air cleaner box toward the front of the vehicle body.
  • the suction passages can be made to have a substantially linear shape by allowing the axes of the plurality of suction funnels to intersect each other, the suction efficiency increases, and, at the same time, the total height of the air cleaner box can be lowered by virtue of the inclination of the suction funnels.
  • the suction funnels in the air cleaner box, it is made possible to lower the total height of the engine including the air cleaner box, and to lower the total height of the vehicle body.
  • the filter element in such a manner that it overlaps one of the intersecting suction funnels, it is possible to utilize the space in the air cleaner box without waste.
  • the columnar filter element is vertically positioned, and is held by sandwiching the filter element by means of the vertically split air cleaner box from above and below, the filter element can be fixed only with the air cleaner box, and another supporting member becomes unnecessary.
  • the filter element is disposed in the vehicle-body front side of the air cleaner box, and fresh air is introduced from the opening provided in a front lower portion of the air cleaner box, it becomes unnecessary to house the air intake duct in the bank valley. Accordingly, it is possible to arrange the air cleaner box close to the engine correspondingly, and to lower the total height of the engine including the air cleaner box.
  • the air intake duct is provided, which is connected to the opening provided in the front portion of the air cleaner box and curvedly extends toward the front of the vehicle body, it is possible to dispose the air intake duct with good space efficiency, and to introduce the fresh air efficiently because the air intake duct can be made relatively short.
  • Fig. 1 is a left side view of a motorcycle to which the present invention is applied.
  • a left-right pair of front forks 2 supporting a front wheel 1 at lower end portions thereof are connected to a head pipe 3 at upper portions thereof, and are freely steerable by using a handlebar 4.
  • the head pipe 3 is attached to a front end of a main frame 5.
  • the main frame 5 is extended in a left-right pair shape, opening rearward from the head pipe 3.
  • a pivot plate 6 is attached to each of rear end portions of the main frame 5.
  • the pivot plates 6 are provided in a left-right pair, each of which has a substantially L shape in a side view, and support both end portions of a pivot shaft 7 laid laterally therebetween.
  • the main frame 5 and the pivot plates 6 constitute, of a body frame, a frame main-body portion supporting an engine.
  • a front end of a rear swing arm 8 is freely swingably supported by the pivot shaft 7.
  • a rear wheel 9 is supported at rear ends of the rear swing arm 8.
  • the engine 10 is such as to drive the rear wheel 9 via a chain, and is supported by the main frame 5 and the pivot plates 6 as well as down tubes 11 extending rearward and obliquely downward from the head pipe 3.
  • Stays 12 protruding upward are provided in a left-right pair integrally to the respective rear portions of the left and right main frames 5.
  • a rear cushion 13 being a constituent of a rear wheel suspension is connected between an upper face of a front portion of the rear swing arm 8 and the stays 12.
  • a front end portion of a seat-rail upper portion 14 is attached to an upper portion of each of the stays 12.
  • the seat-rail upper portions 14 support a two-seater seat 15.
  • Reference numeral 16 indicates a seat-rail lower portion; 17, a rear cover; and 18, a side trunk.
  • a fuel tank 19 is disposed above the engine 10 to the front of the seat 15, and is supported by the main frame 5 and upper end portions of the stays 12.
  • An air cleaner 20 is incorporated inside a front portion of the fuel tank 19, and supplies air to a front cylinder 23 and a rear cylinder 24 of the engine 10 after cleaning the outside air sucked from an air intake duct 21 through a filter element 22.
  • a front exhaust pipe 25 and a rear exhaust pipe 26 extend from the exhaust ports of the front and rear cylinders 23 and 24 respectively, gather under the engine 10, and are connected to a rear muffler 27.
  • a radiator 28 is supported by the down tubes 11, and water-cools the front and rear cylinders 23 and 24.
  • the front of the body is covered with a front cowl 29.
  • FIG. 2 is a side view showing the vicinity of the air cleaner 20 in an enlarged manner.
  • An air cleaner box 30 being a constituent of the air cleaner 20 has a vertically split construction constituted of an upper case 31 and a lower case 32.
  • the upper case 31 has a substantially dome shape, and is housed in a downward open space 19a formed under the front of the fuel tank 19.
  • a first funnel 33 and a second funnel 34 are disposed with a space between them in the vehicle width direction, and are disposed so that a rear end portion and a lower end portion thereof overlap each other in a side view.
  • the first funnel 33 is disposed in such a forward-tilted manner as to be oriented rearward and obliquely downward from the vehicle front side.
  • the lower end portion of the first funnel 33 protrudes downward from a bottom portion of the lower case 32 and is connected to a throttle body 35, which is an electronic fuel-supply system.
  • the throttle body 35 is a publicly known electronic fuel-supply system including a throttle valve provided therein and an injector which is an electronic fuel-injection valve.
  • the lower end portion of the throttle body 35 is attached to an attachment seat 36 provided on the front face of the cylinder head of the rear cylinder 24, and is thereby connected to a suction port of the rear cylinder 24.
  • the second funnel 34 is similar, but it is disposed in such a backward-tilted manner as to be oriented forward and obliquely downward.
  • the lower portion of the second funnel 34 protrudes from a bottom portion of the lower case 32, and is connected to a throttle body 37.
  • the throttle body 37 is attached to an attachment seat 38 provided on the back face of the cylinder head of the front cylinder 23, and is thereby connected to a suction port of the front cylinder 23.
  • the attachment seats 36 and 38 are protrudingly arranged so as to face a bank valley 39 sandwiched by the front cylinder 23 and the rear cylinder 24 from the front and rear thereof, being disposed by utilizing the space of the bank valley 39.
  • C1 and C2 are central axes of the first and second funnels 33 and 34, intersecting in a substantially X shape above the bank valley 39.
  • the suction passages for the suction ports of the front and rear cylinders 23 and 24 are formed substantially linearly along these axes C1 and C2.
  • the air intake duct 21 with a relatively short pipe length protrudes downward in a substantially L shape.
  • a duct upper portion 21a is fitted in an opening 40 provided in the front bottom portion of the lower case 32 at a position more forward than the first funnel 33, and is thereby connected to a through hole 43 (see Fig. 4) of the filter element 22 fixed in the air cleaner box 30 so as to communicate therewith from below.
  • a duct lower portion 21b curvedly protrudes from the duct upper portion 21a downward and forward. The tip of the duct lower portion 21b becomes substantially horizontal above the front cylinder 23, and opens forward substantially on the body center line (see Fig. 3).
  • the air intake duct 21 sucks the wind caused by traveling coming from the front of the body in the vicinity of the body center line where wind pressure is high, and introduces the wind into the air cleaner box 30 through the space above the front cylinder 23.
  • the outside air introduced from the air intake duct 21 into the air cleaner box 30 is cleaned through the filter element 22, and thereafter branches into the first and second funnels 33 and 34 and is sent to the corresponding throttle bodies 35 and 37. Furthermore, the outside air is sent to the respective suction ports of the front and rear cylinders 23 and 24.
  • Fig. 3 is a diagram schematically showing the planer configuration of the air cleaner 20.
  • the air cleaner 20 is so disposed that almost whole of the air cleaner 20 except for a front portion thereof overlaps a front portion of the fuel tank 19.
  • the filter element 22 has an elliptical shape in a plan view shown in the drawing.
  • the filter element 22 is disposed so as to be oriented laterally in the vehicle width direction, and is disposed so as to be offset to the vehicle right side of the body center line C.
  • the first funnel 33 is disposed so as to be long in the fore-and-aft direction.
  • the front end portion of the first funnel 33 overlaps the filter element 22 when viewed along the vehicle width direction, and the rear end portion thereof substantially coincides with the position of the lower end portion of the second funnel 34 when viewed along the vehicle width direction.
  • the second funnel 34 is disposed at a substantially vertical inclination so as to be disposed side by side with the filter element 22 to the rear thereof along the fore-and-aft direction, in a vehicle right-side portion of the air cleaner 20.
  • the air cleaner 20 is asymmetric in the vehicle width direction, expanding in such a manner that the vehicle right-side portion thereof is larger in volume. Note that each of the center axes C1 and C2 of the first and second funnels 33 and 34 is inclined so as to intersect the body center line C obliquely in a plan view.
  • Fig. 4 is a perspective view of the air cleaner 20 shown in a state where the upper case 31 is removed.
  • a substantially columnar attachment boss 41 is integrally formed at the center of the bottom of the lower case 32 so as to protrude upward, and the center of the upper case 31 is fastened thereto via a bolt.
  • the first and second funnels 33 and 34 are disposed along the vehicle width direction with the attachment boss 41 interposed therebetween.
  • Attachment portions 42a are formed at appropriate intervals in an attachment flange 42 formed around the lower case 32, to which the periphery of the upper case 31 is attached via screws.
  • the through hole 43 is formed through the center of the filter element 22.
  • the space in the through hole 43 is a dirty side 45 communicating with the air intake duct 21.
  • the filter element 22 is vertically disposed with the through hole 43 oriented along an up-and-down direction.
  • the space in the air cleaner 20 surrounding the filter element 22 is a clean side 46.
  • the outside air introduced from the air intake duct 21 enters the dirty side 45.
  • the air then passes through the filter element 22 while being cleaned, and enters the clean side 46. Thereafter, the air flows into the first and second funnels 33 and 34.
  • the outside air is introduced from the front of the vehicle above the front cylinder 23, cleaned by passing through the filter element 22, and then sent to the suction ports of the front and rear cylinders 23 and 24 from the first and second funnels 33 and 34.
  • the suction passages are relatively short, having a substantially linear shape, so that it is possible to increase the suction efficiency.
  • the air intake duct 21 is disposed above the front cylinder 23 outside the bank valley 39, almost the whole space within the bank valley 39 can be used as the space to dispose the throttle bodies 35 and 37. Accordingly, it is made possible to place the air cleaner 20 close to the front and rear cylinders 23 and 24, to lower the total height of the engine 10 including the air cleaner 20, and therefore to lower the vehicle height.
  • the air intake duct 21 curves and opens to the vicinity of the body center line, the relatively cool outside air above the front cylinder 23 can be sucked at a position where wind pressure is high, so that it is possible to increase the suction efficiency.
  • curving the air intake duct 21 it is possible to introduce the outside air from the body center line side even if the filter element 22 is offset to one side of the body, and it becomes easy to dispose the air intake duct 21 with the interference with the other components avoided and with good space efficiency.
  • the air cleaner 20 can be disposed low.
  • the filter element 22 in such a manner that it overlaps the first funnel 33 in a side view, it is possible to dispose the whole inside of the air cleaner 20 compactly.
  • Figs. 5 and 6 show another embodiment.
  • Fig. 5 is a side view of the embodiment corresponding to Fig. 2
  • Fig. 6 is a plan view thereof corresponding to Fig. 3.
  • the filter element 22 is disposed laterally with the through hole oriented along the fore-and-aft direction, the front end portion thereof is attached to a lid 50, and the lid 50 is freely removably attached to a front face of the air cleaner box 30, so that the filter element 22 together with the lid 50 is removable.
  • the arrangement of the first and second funnels 33 and 34 is similar to that in the previous embodiment.
  • the air cleaner 20 With this configuration, a compact structure of the air cleaner 20 can be expected as in the case of the previous embodiment. At the same time, when the lid 50 is removed, it becomes possible to remove and replace the filter element 22 without removing the upper case 31. Accordingly, the air cleaner becomes excellent in terms of ease of maintenance.
  • the air intake duct 21 can open to the vicinity of the body center line by curving. Accordingly, the suction efficiency can be increased as in the case of the previous embodiment, and it becomes easy to dispose the air intake duct 21 with good space efficiency. Moreover, the outside-air introduction to the laterally positioned filter element 22 becomes easy.
  • the V-type engine includes not only one for a motorcycle but also one for various kinds of vehicles.
  • the V-type engine includes not only a fore-and-aft bank type but also a lateral bank type. Accordingly, in some cases, the overlap between the suction funnel and the filter element would be exhibited not only in the side view but also in a view along the fore-and-aft direction.
  • the filter element it is sufficient for the filter element to have a tubular shape.
  • the cross-sectional shape of the filter element may be an arbitrary shape, such as a circular shape or an elliptical shape.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP20050026458 2005-01-11 2005-12-05 Filtre à air pour un véhicule Expired - Fee Related EP1683959B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005004066A JP4488422B2 (ja) 2005-01-11 2005-01-11 車両用エアクリーナ構造

Publications (2)

Publication Number Publication Date
EP1683959A1 true EP1683959A1 (fr) 2006-07-26
EP1683959B1 EP1683959B1 (fr) 2007-11-14

Family

ID=35999470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050026458 Expired - Fee Related EP1683959B1 (fr) 2005-01-11 2005-12-05 Filtre à air pour un véhicule

Country Status (4)

Country Link
EP (1) EP1683959B1 (fr)
JP (1) JP4488422B2 (fr)
DE (1) DE602005003324T2 (fr)
ES (1) ES2296052T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112018005365T5 (de) * 2017-09-21 2020-10-01 Honda Motor Co., Ltd. Fahrzeug des sattelsitztyps

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364340A (en) * 1980-02-08 1982-12-21 Yamaha Hatsudoki Kabushiki Kaisha Vehicular engine
JPS6193264A (ja) * 1985-09-20 1986-05-12 Yamaha Motor Co Ltd 自動二輪車の吸気装置
US4799569A (en) * 1985-08-23 1989-01-24 Honda Giken Kogyo Kabushiki Kaisha Motorcycle
EP1520978A2 (fr) * 2003-09-30 2005-04-06 HONDA MOTOR CO., Ltd. Dispositif d'admission d'air pour un véhicule, et motocyclette comprenant un tel dispositif

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194787B2 (ja) * 1992-05-03 2001-08-06 本田技研工業株式会社 自動２輪車の吸気装置
JPH0632271A (ja) * 1992-07-14 1994-02-08 Honda Motor Co Ltd 自動２輪車の走行風導入装置
JP3189994B2 (ja) * 1993-10-19 2001-07-16 本田技研工業株式会社 エアクリーナケースの製造方法
JP3745041B2 (ja) * 1996-08-09 2006-02-15 本田技研工業株式会社 自動二輪車の吸気装置
JP2000085666A (ja) * 1998-09-08 2000-03-28 Yamaha Motor Co Ltd 自動二輪車のエアクリーナ装置
JP3520857B2 (ja) * 2001-03-29 2004-04-19 スズキ株式会社 自動二輪車のｖ型エンジンの吸気装置
JP3552690B2 (ja) * 2001-09-13 2004-08-11 スズキ株式会社 自動二輪車のエアクリーナー装置
JP3975076B2 (ja) * 2001-11-22 2007-09-12 本田技研工業株式会社 スクータ型自動二輪車
JP4145694B2 (ja) * 2003-03-31 2008-09-03 本田技研工業株式会社 小型車両用エンジンの吸気装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364340A (en) * 1980-02-08 1982-12-21 Yamaha Hatsudoki Kabushiki Kaisha Vehicular engine
US4799569A (en) * 1985-08-23 1989-01-24 Honda Giken Kogyo Kabushiki Kaisha Motorcycle
JPS6193264A (ja) * 1985-09-20 1986-05-12 Yamaha Motor Co Ltd 自動二輪車の吸気装置
EP1520978A2 (fr) * 2003-09-30 2005-04-06 HONDA MOTOR CO., Ltd. Dispositif d'admission d'air pour un véhicule, et motocyclette comprenant un tel dispositif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 270 (M - 517) 13 September 1986 (1986-09-13) *

Also Published As

Publication number Publication date
JP4488422B2 (ja) 2010-06-23
EP1683959B1 (fr) 2007-11-14
JP2006194101A (ja) 2006-07-27
DE602005003324D1 (de) 2007-12-27
DE602005003324T2 (de) 2008-09-11
ES2296052T3 (es) 2008-04-16

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