EP1382834A1 - Lufteintrittsystem für ein Motorrad - Google Patents

Lufteintrittsystem für ein Motorrad Download PDF

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Publication number
EP1382834A1
EP1382834A1 EP02425466A EP02425466A EP1382834A1 EP 1382834 A1 EP1382834 A1 EP 1382834A1 EP 02425466 A EP02425466 A EP 02425466A EP 02425466 A EP02425466 A EP 02425466A EP 1382834 A1 EP1382834 A1 EP 1382834A1
Authority
EP
European Patent Office
Prior art keywords
motorcycle
induction
induction unit
box
induction 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Withdrawn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
EP02425466A
Other languages
English (en)
French (fr)
Inventor
Pierre Terblanche
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.)
Ducati Motor Holding SpA
Original Assignee
Ducati Motor Holding SpA
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 Ducati Motor Holding SpA filed Critical Ducati Motor Holding SpA
Priority to EP02425466A priority Critical patent/EP1382834A1/de
Publication of EP1382834A1 publication Critical patent/EP1382834A1/de
Withdrawn legal-status Critical Current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
    • F02M35/16—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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir

Definitions

  • the present invention relates to an induction unit for a motorcycle.
  • the induction unit according to the present invention is positioned under the fuel tank and comprises an air intake duct and a large induction box through which the air enters the motorcycle engine.
  • Induction units of this type are known, for example, from patent publication EP-1 083 330.
  • This document describes an air cleaner located in the space under the motorcycle fuel tank and made in such a way as not to alter the mounting height of the fuel tank itself and so as to provide the engine with a large induction box.
  • Japanese patent application JP-11-192989 discloses an intake duct which carries air to a filter box and which is designed to be easily fixable and adaptable to the internal and external structure of the motorcycle.
  • the present invention therefore has for an object to provide a motorcycle engine induction unit which accommodates within its mounting space other accessories or components of the motorcycle and which can be easily preassembled and fitted within the motorcycle structure.
  • the present invention discloses an induction unit for a motorcycle as described in the independent claim below.
  • the numeral 1 denotes an induction unit for a motorcycle.
  • the motorcycle induction unit 1 comprises at least one intake duct 2, 3, an induction box 4 connected to the intake duct 2, 3 and at least one container 5, 6 for auxiliary systems 7,8.
  • the left container 5 houses a device (or canister) for the recovery of fuel vapours from a fuel tank 8, and the container 6 is a coolant expansion tank connected to a radiator 7.
  • the induction unit 1 comprises two intake ducts 2, 3, which are connected to the induction box 4 through appropriate fixing means 9, for example a set of screws 10, and which come from the front 11 of the motorcycle.
  • the ducts 2, 3 are slotted in appropriate seats 11a made in the front 11 which in practice consists of a fairing 12.
  • Each duct 2, 3 has one end 13 connected to the induction box 4 and a second end 14 connected to the fairing 12.
  • each duct 2, 3 has an air cleaning element 15 which may be pre-assembled and which is mounted between each duct 2, 3 and the induction box 4.
  • the air cleaning element 15 is substantially in the shape of an oblique prism with a triangular base and rounded edges. This shape constitutes an optimum compromise between the need to limit the space occupied by the cleaning element 15 in the induction box 4 and the need to provide the largest possible filtering surface.
  • Suitable openings 16, 17 are made in the induction box 4 to accommodate the air cleaning element 15. These openings 16, 17 are slightly larger in size than the air cleaning element 15 so that the latter can be easily inserted into and removed from the induction box 4.
  • the air cleaning element 15 has a sealed edge 15a that fits between the induction box 4 and the respective intake duct 2, 3.
  • Changing the air cleaning element 15 is therefore very easy not only because the induction box 4 need not be opened but also because the openings 16, 17 are located on the sides and it is not therefore necessary to remove the parts above the induction box 4, for example, the fuel tank 8.
  • the induction box 4 comprises a base 18 and a lid 19, on which a part of the fuel mixing means 20 may be mounted.
  • the fuel mixing means 20 may comprise injectors 21, air chokes 22 and throttle bodies 22a or carburettors (not illustrated).
  • Figure 4 shows an air choke 22 and the related injector 21 fitted to it.
  • the injectors 21 are mounted on the lid 19 through holes 23 made in the lid 19 itself, while the throttle bodies 22a are mounted on the base 18 through holes 24 made in the base 18 itself.
  • the throttle bodies 22a also serve as a support for the entire induction box 4 and since the throttle bodies 22a (or the carburettors) are in turn supported by the induction manifolds of the motorcycle engine, it follows that the induction box 4 is also supported by the engine.
  • This arrangement is particularly convenient in engines with cylinders arranged in a Vee configuration where the induction manifolds are centrally positioned between the two cylinder banks.
  • This configuration also facilitates connection between the motorcycle engine and the induction box 4 since the latter is not fixed to the motorcycle frame and is therefore not affected by the relative dimensional variations and tolerances between the frame fastenings, the induction box 4 itself and the engine induction manifolds.
  • each injector 21 faces the inside of the induction box 4 at all times and is coaxial with the respective air choke 22 and throttle body 22a.
  • the body of the injector 21 fits inside and seals the hole 23. This solution also improves the flow of air entering the engine because the absence of injector support elements means there is less load loss.
  • the injectors 21 can be easily and directly accessed from the outside of the induction box 4 for substitution and maintenance without having to open the box 4 itself.
  • the lid 19 is fixed to the base 18 by a plurality of fixing screws 19a.
  • the outer edge 24 of the base 18 has a groove 26 made in it, where an elastomer seal 25 is fitted (see Fig. 1A).
  • the seal 25 in the edge 24 is preferably made by a co-injection process. This process involves making the base 18 by injecting a hard plastic material into a mould matching the shape of the base 18 without the seal 25.
  • the base 18 made in this way is then placed in the same mould after removing an element corresponding to the shape of the seal 25 from the mould, or the base 18 is placed in another mould that includes a cavity corresponding to the seal 25.
  • the elastomeric material is injected into the mould to make the seal 25. This process effectively binds the seal 25 to the base 18 and achieves a perfect seal.
  • the seal 25 cooperates with a rib 27 made on the lid 19 (Fig.1A) to achieve a perfect airtight seal.
  • the positions of the seal 25 and of the rib 27 may be exchanged, that is to say, the seal may be located on the lid 19 and the rib 27 on the base 18.
  • the lid 19 has a substantially flat, horizontal upper surface so as not to interfere with parts of the motorcycle that are above it, even when these parts are not aligned lengthways with the induction box 4, or when these parts can move lengthways, for example where the position of the tank 8 can be adjusted lengthways.
  • An expansion chamber 28 located on one side of the induction box 4 and connected to the latter through a pipe 29 permits the expansion of the gases from the engine crankcase.
  • the induction box 4 has holes 30, 31 made in it to enable maintenance to be performed on the components 21, 22, 22a located inside the induction box 4 without removing the lid 19.
  • the holes 30, 31 are closed by appropriate plugs (not illustrated) made of an elastic material and having the shape of suction cups to provide an airtight seal.
  • the vacuum inside the induction box 4 further improves the effect of the airtight seal by causing the suction cup parts of the plugs to adhere more closely.
  • second openings 38 may be provided to house other accessories or systems, for example, to feed fuel to the mixing means 20, without unduly complicating the shape of the mould for the base 18.
  • concertinaed covers (not illustrated) so as to hold the accessory or system within the induction box 4.
  • the concertinaed covers may have passing through them the ducts for fluids (for example, fuel) and/or for electrical power lines and/or data transmission lines for the accessories and/or systems located inside the induction box 4.
  • the intake ducts 2, 3 slot into the fairing 12 with their first ends 13 and into the induction box 4 with their second ends 14. Again, the ducts 2, 3 are not affected by dimensional variations and tolerances between the fastenings of the fairing and of the induction box 4 itself and are easy to adapt thanks to the seats 11a in the fairing 12.
  • the ducts 2, 3 also comprise the containers 5, 6 moulded in a single piece.
  • each duct 2, 3 consists of two half casings 32, 33, 34, 35, made in a single piece with the respective part of the containers 5, 6, which are also made in two halves.
  • the half casings 32, 33, 34, 35 are then joined in pairs in such a way as to form the ducts 2, 3 and including the containers 5, 6.
  • the half casings 32, 33, 34, 35 can be joined by gluing or welding and are preferably joined by ultrasound welding which uses ultrasound waves to generate vibrations capable of locally heating only the parts of the half casings 32, 33, 34, 35 to be joined.
  • the containers 5, 6 comprise at least one fastening 36, 37 used to mount the auxiliary systems 7.
  • the fastening 36, 37 is used to support and adjust the position of the radiator 7.
  • the radiator 7 is therefore positioned and angled with reference to the fairing 12 and is independent of dimensional variations and tolerances of fastening points on the frame because, thanks to the fastenings 36, 37 of the containers 5, 6 connected to the ducts 2, 3, the entire unit is referenced to the fairing 12.
  • the containers 5, 6 have an inside surface 51, 61 that is substantially flat and aligned with the lateral edges of the radiator 7, so as to channel the air flow towards the radiator 7.
  • the invention achieves important advantages.
  • the motorcycle engine induction unit according to the present invention is well integrated with the other parts of the motorcycle.
  • it incorporates the coolant container and the canister.
  • the induction unit according to the present invention can be easily fitted to the motorcycle because the induction box 4 is supported by the throttle bodies 22a (or the carburettors), which are in turn supported by the induction manifolds of the motorcycle engine, thus avoiding problems due to dimensional variations and tolerances of the components adjacent to the induction unit and of fastening points on the frame.
  • the ducts 2, 3 - since they are supported by the fairing 12 and the induction box 4 - are also independent of dimensional variations and tolerances of the adjacent components.
  • the ducts 2, 3 are in turn used as a reference for the radiator 7 which is thus exactly positioned and angled relative to the fairing 12.
  • the motorcycle induction unit according to a preferred embodiment of the present invention enables the fuel injectors to be mounted directly on the lid 19 of the induction box 4.
  • the special structure of the induction box 4 ensures quick and easy access to the fuel mixing means 20 and to the cleaning elements 15, thus facilitating maintenance and enabling the cleaning elements 15 to be conveniently changed without removing the lid 19 or the tank 8.

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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)
EP02425466A 2002-07-16 2002-07-16 Lufteintrittsystem für ein Motorrad Withdrawn EP1382834A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02425466A EP1382834A1 (de) 2002-07-16 2002-07-16 Lufteintrittsystem für ein Motorrad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425466A EP1382834A1 (de) 2002-07-16 2002-07-16 Lufteintrittsystem für ein Motorrad

Publications (1)

Publication Number Publication Date
EP1382834A1 true EP1382834A1 (de) 2004-01-21

Family

ID=29762764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425466A Withdrawn EP1382834A1 (de) 2002-07-16 2002-07-16 Lufteintrittsystem für ein Motorrad

Country Status (1)

Country Link
EP (1) EP1382834A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710428A1 (de) * 2005-03-31 2006-10-11 HONDA MOTOR CO., Ltd. Ansaugtraktanordnung
CN101832202A (zh) * 2009-03-11 2010-09-15 本田技研工业株式会社 自动二轮车的吸附罐配置结构
CN101397958B (zh) * 2007-09-28 2011-12-21 雅马哈发动机株式会社 自动二轮车用空气滤清装置
JP2019202758A (ja) * 2018-05-09 2019-11-28 ケーティーエム アーゲーＫｔｍ Ａｇ 内燃機関を備えた車両用の吸気装置
JP2019210894A (ja) * 2018-06-07 2019-12-12 川崎重工業株式会社 鞍乗型車両

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164694A (ja) * 1987-12-21 1989-06-28 Honda Motor Co Ltd 自動二輪車のエアクリーナ装置
JPH10331733A (ja) * 1997-05-28 1998-12-15 Yamaha Motor Co Ltd 自動二輪車の吸気装置
JPH11192989A (ja) 1998-01-06 1999-07-21 Suzuki Motor Corp 自動二輪車の吸気ダクト装置
EP1083330A2 (de) 1999-09-07 2001-03-14 Honda Giken Kogyo Kabushiki Kaisha Luftreinigungssystem für Motorrad
JP2002048021A (ja) * 2000-07-31 2002-02-15 Honda Motor Co Ltd 自動二輪車の吸気ダクト

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164694A (ja) * 1987-12-21 1989-06-28 Honda Motor Co Ltd 自動二輪車のエアクリーナ装置
JPH10331733A (ja) * 1997-05-28 1998-12-15 Yamaha Motor Co Ltd 自動二輪車の吸気装置
JPH11192989A (ja) 1998-01-06 1999-07-21 Suzuki Motor Corp 自動二輪車の吸気ダクト装置
EP1083330A2 (de) 1999-09-07 2001-03-14 Honda Giken Kogyo Kabushiki Kaisha Luftreinigungssystem für Motorrad
JP2002048021A (ja) * 2000-07-31 2002-02-15 Honda Motor Co Ltd 自動二輪車の吸気ダクト

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 177 (M - 818) 26 April 1989 (1989-04-26) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 17 5 June 2001 (2001-06-05) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710428A1 (de) * 2005-03-31 2006-10-11 HONDA MOTOR CO., Ltd. Ansaugtraktanordnung
CN100434336C (zh) * 2005-03-31 2008-11-19 本田技研工业株式会社 进气管道构造
CN101397958B (zh) * 2007-09-28 2011-12-21 雅马哈发动机株式会社 自动二轮车用空气滤清装置
CN101832202A (zh) * 2009-03-11 2010-09-15 本田技研工业株式会社 自动二轮车的吸附罐配置结构
CN101832202B (zh) * 2009-03-11 2012-10-10 本田技研工业株式会社 自动二轮车的吸附罐配置结构
JP2019202758A (ja) * 2018-05-09 2019-11-28 ケーティーエム アーゲーＫｔｍ Ａｇ 内燃機関を備えた車両用の吸気装置
JP7007325B2 (ja) 2018-05-09 2022-01-24 ケーティーエム アーゲー 内燃機関を備えた車両用の吸気装置
JP2019210894A (ja) * 2018-06-07 2019-12-12 川崎重工業株式会社 鞍乗型車両

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