EP1359314B1 - Calibrated injector assembly for feeding an internal-combustion engine, particularly for electric power generators - Google Patents

Calibrated injector assembly for feeding an internal-combustion engine, particularly for electric power generators Download PDF

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Publication number
EP1359314B1
EP1359314B1 EP03008777A EP03008777A EP1359314B1 EP 1359314 B1 EP1359314 B1 EP 1359314B1 EP 03008777 A EP03008777 A EP 03008777A EP 03008777 A EP03008777 A EP 03008777A EP 1359314 B1 EP1359314 B1 EP 1359314B1
Authority
EP
European Patent Office
Prior art keywords
holes
cavity
fuel
duct
assembly according
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.)
Expired - Fee Related
Application number
EP03008777A
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German (de)
French (fr)
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EP1359314A1 (en
Inventor
Vincenzo Mazza
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.)
ELETTROMECCANICA GASPERINI Srl
Original Assignee
ELETTROMECCANICA GASPERINI Srl
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Filing date
Publication date
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Publication of EP1359314A1 publication Critical patent/EP1359314A1/en
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Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/1019—Two-stroke engines; Reverse-flow scavenged or cross scavenged engines
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric 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
    • F02M35/10—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
    • F02M35/10045—Multiple plenum chambers; Plenum chambers having inner separation walls
    • 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
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • 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
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/1017—Small engines, e.g. for handheld tools, or model engines; Single cylinder engines
    • 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
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10177—Engines having multiple fuel injectors or carburettors per cylinder
    • 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
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • 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
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • the present invention relates to a calibrated injector assembly for feeding internal-combustion engines, particularly for electric power generators, therefore for engines adapted to run at a constant speed.
  • Electric power generators are known which are powered by a single-cylinder internal-combustion engine and are typically used to recharge batteries of campers or the like.
  • the engines used in such electric power generators are characterized in that they have their maximum conversion efficiency by turning at a constant rotation rate, at which the efficiency of the entire electric power generator is optimized.
  • the aim of the present invention is therefore to provide a fuel injector assembly that has a considerably simplified structure with respect to conventional carburetors used in internal-combustion engines.
  • An object of the present invention is to reduce the intake noise caused by the shock wave that follows the combustion stroke of the engine.
  • Another object of the present invention is to provide an injector assembly that is particularly suitable for mixing gaseous fuel.
  • the present calibrated injector assembly for feeding internal-combustion engines, particularly for electric power generators, characterized in that it comprises a box-like body that forms internally a cavity, a duct for connecting said cavity to a combustion chamber of said engine, at least one nozzle for feeding fuel into said box-like body proximate to the inlet to said duct, and a plurality of holes formed in said box-like body for feeding combustion-supporting air into said cavity, said holes being formed in order to ensure a given stoichiometric ratio with respect to said fuel.
  • the reference numeral 1 generally designates a calibrated injector assembly for feeding two-stroke internal-combustion engines, particularly for electric power generators.
  • Such assembly 1 feeds the two-stroke internal-combustion engine 2, to which it is rigidly fixed by means of a bracket 3.
  • the internal-combustion engine is not shown in detail, since it is fully conventional.
  • the multiple injector assembly 1 is constituted by a metallic box-like body, which is substantially shaped like a prism with a rectangular base and is composed of a tray 4 which encloses a cavity 6 together with a lid 5.
  • the tray 4 and the lid 5 are fixed one another by way of screws (not shown), which engage in threaded holes 8 of a peripheral wall 7 of the tray 4.
  • the tray 4 comprises a substantially rectangular bottom 9, in a portion 10 of which there are multiple calibrated holes 11 arranged along multiple rows.
  • the longitudinal walls of the tray 4 form, at the hole for entering the duct 13, two respective bends 14 and 15, which ideally divide the cavity 6 into two chambers 16 and 17, the first whereof is smaller than the second.
  • a calibrated nozzle 18 is arranged on a lateral surface of the chamber 16 and is suitable to introduce the fuel.
  • a second calibrated nozzle 19 is fixed to the duct 13, and oil for lubricating the combustion chamber of the internal-combustion engine 2 is introduced through the second nozzle.
  • Three partitions 20 are provided inside the cavity 6 and are arranged transversely to the length of the box-like body; two of such partitions extend from one side wall 7 of the tray 4 to the other and are fixed to the tray 4, while the remaining partition, which also has the same dimensions, is fixed to the lid 5.
  • Operation of the invention is as follows: air is aspirated through the calibrated holes 11 into the cavity 6, at the end of the chamber 17; the calibration is such that the holes 11 allow the inflow of an amount of air that is equal to the amount required in order to provide the correct stoichiometric ratio with the fuel, particularly gaseous fuel, introduced with a constant flow-rate by the calibrated nozzle 18.
  • the path is such that every fluid thread of the air stream is subjected to an alternated sequence of positive and negative accelerations and of direction changes owing to the presence of the partitions 20; the motion of said fluid thread is of the turbulent type.
  • the air after entering the chamber 17 of the cavity 6, mixes with the fuel introduced through the nozzle 18 into the chamber 16. It should be noted that the larger quantity of air that arrives from the chamber 17 gathers, due to the suction of the engine, directly in the duct 13, facilitating correct mixing.
  • the resulting mix of air and fuel is aspirated into the intake duct 13, where the nozzle 19 introduces the lubricating oil at a constant flow-rate.
  • the mix of air and fuel in which the lubricating oil is suspended advances along the intake duct until it is introduced in the cylinder of the two-stroke internal-combustion engine 2.
  • the invention allows to provide a carburetor that has no moving parts (comparable to the throttle valve of conventional internal-combustion engines) and is therefore constructively extremely simple and highly effective in obtaining an explosive air-gas mix.
  • Such a condition is achieved by providing a larger number of calibrated holes in the lower surface of the tray 4, in the portion 10.
  • Those holes can be partially closed, according to a number of variations equal to the number of said operating states of the engine, by means of a partition that is actuated in a gate-like fashion: said partition can, for example, be able to slide within a guide and can be locked along said guide in the positions that correspond to each one of the partial closures of the holes that provide the air supply that is required in each instance.
  • the number of the calibrated nozzles for introducing fuel is equal to the number of said operating states of the engine that one wishes to provide: only one of said nozzles might operate in order to provide the minimum-speed condition (which corresponds to the minimum opening of the calibrated holes on the part of the movable partition), or two or more of said nozzles, taken in pairs, can operate simultaneously for the other operating states, which are characterized by higher engine speeds (which correspond to larger openings of the calibrated holes on the part of the movable partition).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

  • The present invention relates to a calibrated injector assembly for feeding internal-combustion engines, particularly for electric power generators, therefore for engines adapted to run at a constant speed.
  • Electric power generators are known which are powered by a single-cylinder internal-combustion engine and are typically used to recharge batteries of campers or the like.
  • The engines used in such electric power generators are characterized in that they have their maximum conversion efficiency by turning at a constant rotation rate, at which the efficiency of the entire electric power generator is optimized.
  • Therefore, since the rotation rate of electric power generators is affected by limited variations with respect to an optimum value, the parts of the carburetor that are designed to mix air and fuel in the intended quantities and proportions appear to be susceptible of constructive simplifications.
  • The aim of the present invention is therefore to provide a fuel injector assembly that has a considerably simplified structure with respect to conventional carburetors used in internal-combustion engines.
  • An object of the present invention is to reduce the intake noise caused by the shock wave that follows the combustion stroke of the engine.
  • Another object of the present invention is to provide an injector assembly that is particularly suitable for mixing gaseous fuel.
  • This aim and these and other objects are achieved by the present calibrated injector assembly for feeding internal-combustion engines, particularly for electric power generators, characterized in that it comprises a box-like body that forms internally a cavity, a duct for connecting said cavity to a combustion chamber of said engine, at least one nozzle for feeding fuel into said box-like body proximate to the inlet to said duct, and a plurality of holes formed in said box-like body for feeding combustion-supporting air into said cavity, said holes being formed in order to ensure a given stoichiometric ratio with respect to said fuel.
  • Further features and advantages will become better apparent from the detailed description of a preferred but not exclusive embodiment of a calibrated multiple injector assembly according to the invention, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
    • Figure 1 is a sectional view of the injector assembly of the invention, taken along a longitudinal plane;
    • Figure 2 is a sectional view, taken along the line II-II of Figure 1.
  • With reference to the figures, the reference numeral 1 generally designates a calibrated injector assembly for feeding two-stroke internal-combustion engines, particularly for electric power generators. Such assembly 1 feeds the two-stroke internal-combustion engine 2, to which it is rigidly fixed by means of a bracket 3. The internal-combustion engine is not shown in detail, since it is fully conventional.
  • The multiple injector assembly 1 is constituted by a metallic box-like body, which is substantially shaped like a prism with a rectangular base and is composed of a tray 4 which encloses a cavity 6 together with a lid 5. The tray 4 and the lid 5 are fixed one another by way of screws (not shown), which engage in threaded holes 8 of a peripheral wall 7 of the tray 4.
  • The tray 4 comprises a substantially rectangular bottom 9, in a portion 10 of which there are multiple calibrated holes 11 arranged along multiple rows. A duct 13, provided with the bracket 3 for fixing to the internal-combustion engine 2, extends from an opposite end 12 of the bottom 9.
  • The longitudinal walls of the tray 4 form, at the hole for entering the duct 13, two respective bends 14 and 15, which ideally divide the cavity 6 into two chambers 16 and 17, the first whereof is smaller than the second. A calibrated nozzle 18 is arranged on a lateral surface of the chamber 16 and is suitable to introduce the fuel. A second calibrated nozzle 19 is fixed to the duct 13, and oil for lubricating the combustion chamber of the internal-combustion engine 2 is introduced through the second nozzle. Three partitions 20 are provided inside the cavity 6 and are arranged transversely to the length of the box-like body; two of such partitions extend from one side wall 7 of the tray 4 to the other and are fixed to the tray 4, while the remaining partition, which also has the same dimensions, is fixed to the lid 5.
  • Operation of the invention is as follows: air is aspirated through the calibrated holes 11 into the cavity 6, at the end of the chamber 17; the calibration is such that the holes 11 allow the inflow of an amount of air that is equal to the amount required in order to provide the correct stoichiometric ratio with the fuel, particularly gaseous fuel, introduced with a constant flow-rate by the calibrated nozzle 18.
  • The path is such that every fluid thread of the air stream is subjected to an alternated sequence of positive and negative accelerations and of direction changes owing to the presence of the partitions 20; the motion of said fluid thread is of the turbulent type.
  • The air, after entering the chamber 17 of the cavity 6, mixes with the fuel introduced through the nozzle 18 into the chamber 16. It should be noted that the larger quantity of air that arrives from the chamber 17 gathers, due to the suction of the engine, directly in the duct 13, facilitating correct mixing.
  • The resulting mix of air and fuel is aspirated into the intake duct 13, where the nozzle 19 introduces the lubricating oil at a constant flow-rate. The mix of air and fuel in which the lubricating oil is suspended advances along the intake duct until it is introduced in the cylinder of the two-stroke internal-combustion engine 2.
  • It has thus been shown that the invention allows to provide a carburetor that has no moving parts (comparable to the throttle valve of conventional internal-combustion engines) and is therefore constructively extremely simple and highly effective in obtaining an explosive air-gas mix.
  • The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
  • For example, if it is necessary to provide a plurality of stable operating states of the engine, each characterized by a different rotation rate of the engine, it is necessary to provide a number of different flow-rates of the explosive mix, provided by the assembly according to the invention, that is equal to the number of said operating states.
  • Such a condition is achieved by providing a larger number of calibrated holes in the lower surface of the tray 4, in the portion 10. Those holes can be partially closed, according to a number of variations equal to the number of said operating states of the engine, by means of a partition that is actuated in a gate-like fashion: said partition can, for example, be able to slide within a guide and can be locked along said guide in the positions that correspond to each one of the partial closures of the holes that provide the air supply that is required in each instance.
  • The number of the calibrated nozzles for introducing fuel is equal to the number of said operating states of the engine that one wishes to provide: only one of said nozzles might operate in order to provide the minimum-speed condition (which corresponds to the minimum opening of the calibrated holes on the part of the movable partition), or two or more of said nozzles, taken in pairs, can operate simultaneously for the other operating states, which are characterized by higher engine speeds (which correspond to larger openings of the calibrated holes on the part of the movable partition).
  • Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.

Claims (7)

  1. A calibrated injector assembly (1) for feeding internal-combustion engines (2), particularly for electric power generators, characterized in that it comprises a box-like body (4, 5) that forms internally a cavity (6), a duct (13) for connecting said cavity (6) to a combustion chamber of said engine (2), at least one first nozzle (18) for feeding fuel into said box-like body (4, 5) proximate to an inlet to said duct, and a plurality of holes (11) formed in said box-like body (4, 5) for feeding combustion-supporting air into said cavity (6), said holes (11) being formed in order to ensure a given stoichiometric ratio with respect to said fuel.
  2. The assembly according to claim 1, characterized in that it comprises at least one second nozzle (19), which is installed in said connecting duct (13) and is adapted to introduce lubricating oil.
  3. The assembly according to claim 1, characterized in that said first nozzle (18) is adapted to feed gaseous fuel.
  4. The assembly according to claim 1, characterized in that said calibrated holes (11) are formed in a surface of the box-like body (4, 5) and can be controlled partially by means of a partition that can be actuated in a gate-like fashion in order to control the quantity of aspirated air.
  5. The assembly according to one of claims 1 to 3, characterized in that said box-like body (4, 5) is substantially shaped like a prism with a rectangular base and is composed of a tray-like element (4) and of a lid (5) which encloses said cavity (6) together with said element, said cavity (6) comprising two chambers between which said duct (13) is arranged, one of said chambers being connected to the outside by means of said plurality of holes (11), said fuel supply nozzle (18) leading into the other chamber.
  6. The assembly according to claim 5, characterized in that it comprises at least two calibrated nozzles (18) that can be selected in order to feed fuel according to the intended quantity, said holes (11) being controlled by said partition so as to achieve the stoichiometric ratio with respect to said quantity of fuel.
  7. The assembly according to one of the preceding claims, characterized in that partitions protrude into said cavity, are interposed between said plurality of holes and said duct, and form a labyrinth-like intake path.
EP03008777A 2002-04-30 2003-04-22 Calibrated injector assembly for feeding an internal-combustion engine, particularly for electric power generators Expired - Fee Related EP1359314B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002BO000251A ITBO20020251A1 (en) 2002-04-30 2002-04-30 CALIBRATED INJECTOR GROUP FOR THE POWER OF A COMBUSTION ENGINE IN PARTICULAR FOR GENERATOR SETS
ITBO20020251 2002-04-30

Publications (2)

Publication Number Publication Date
EP1359314A1 EP1359314A1 (en) 2003-11-05
EP1359314B1 true EP1359314B1 (en) 2007-08-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03008777A Expired - Fee Related EP1359314B1 (en) 2002-04-30 2003-04-22 Calibrated injector assembly for feeding an internal-combustion engine, particularly for electric power generators

Country Status (3)

Country Link
EP (1) EP1359314B1 (en)
DE (1) DE60315214D1 (en)
IT (1) ITBO20020251A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105927430B (en) * 2016-06-21 2018-11-06 刘联合 Power fuel automatic synchronization adjusts converter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602514B2 (en) * 1978-07-07 1985-01-22 三菱自動車工業株式会社 Internal combustion engine intake passage structure
JPS56113042A (en) * 1980-02-08 1981-09-05 Yamaha Motor Co Ltd Engine for vehicle
DE3167556D1 (en) * 1981-04-29 1985-01-17 Yamaha Motor Co Ltd Intake device for internal combustion engines
DE19521025A1 (en) * 1995-06-13 1996-12-19 Mann & Hummel Filter Tube module
JP2000130274A (en) * 1998-10-27 2000-05-09 Toyota Motor Corp Intake device for engine
JP2000220544A (en) * 1999-01-28 2000-08-08 Haruo Wada Intake device of engine
JP2000345932A (en) * 1999-06-03 2000-12-12 Toyota Auto Body Co Ltd Intake sound reducing device for vehicle

Non-Patent Citations (1)

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

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Publication number Publication date
ITBO20020251A1 (en) 2003-10-30
EP1359314A1 (en) 2003-11-05
DE60315214D1 (en) 2007-09-13
ITBO20020251A0 (en) 2002-04-30

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