CN1111642C - V-shape internal combustion engine for motor bike - Google Patents

V-shape internal combustion engine for motor bike Download PDF

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Publication number
CN1111642C
CN1111642C CN99118811A CN99118811A CN1111642C CN 1111642 C CN1111642 C CN 1111642C CN 99118811 A CN99118811 A CN 99118811A CN 99118811 A CN99118811 A CN 99118811A CN 1111642 C CN1111642 C CN 1111642C
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CN
China
Prior art keywords
unit
rear portion
combustion engine
bent axle
crankcase
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Expired - Fee Related
Application number
CN99118811A
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Chinese (zh)
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CN1247937A (en
Inventor
神户敬司
野村明史
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
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Publication of CN1247937A publication Critical patent/CN1247937A/en
Application granted granted Critical
Publication of CN1111642C publication Critical patent/CN1111642C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

In the V-shape internal combustion engine for motor bike, by reasonably disposing lubrication oil pump and cooling water pump, can suppress the whole maximization of machine, and can make the miniaturization of crankcase rear portion, guaranteeing has sufficient interval between crankcase rear portion and the rear part exhaust pipe, reduces the influence of the heat radiation of this outlet pipe to crankcase.To front and rear unit (4 1, 4 2) lubricated portion supply with the lubrication oil pump (57) of oil and to front and rear unit (4 1, 4 2) water jacket (24 1, 24 2) cooling waterpump (62) of supplying with cooling water is configured in the front upper place of bent axle (15), can realize the miniaturization at crankcase 21 rear portions, guaranteeing has sufficient interval between crankcase rear portion and the rear part exhaust pipe.

Description

V-shape internal combustion engine for motor bike
The present invention relates to V-shape internal combustion engine for motor bike.Be particularly related to improvement to following internal-combustion engine.This internal-combustion engine has anterior unit and rear portion unit at the state that is contained on the vehicle frame, and this front portion unit and rear portion unit are the center with the bent axle along the left and right directions configuration, and V font ground, front and back is opening.At the rear portion of the crankcase of accommodating bent axle, be connected with the gearbox portion of accommodating speed changer integratedly, forwardly the front portion of unit is connecting anterior outlet pipe, is connecting the rear part exhaust pipe at the rear portion of rear portion unit.
Above-mentioned V-shape internal combustion engine for motor bike, for example open in Japanese kokai publication sho 58-96130 number.
In the existing V-shape internal combustion engine for motor bike, lubrication oil pump and cooling water pump are disposing up and down at the rear portion of crankcase, so, have to form the rear portion of crankcase darker.
Like this, the rear portion of crankcase is very approaching with the rear part exhaust pipe that is connected unit rear portion, rear portion, is subjected to the influence of this outlet pipe heat radiation easily.
The present invention makes in view of the above problems, its purpose is to provide a kind of V-shape internal combustion engine for motor bike, in this internal-combustion engine, by reasonably disposing lubrication oil pump and cooling water pump, can suppress the maximization of motor integral body, and make crankcase rear structure compactness, guaranteeing has abundant interval between bent axle rear portion and the rear part exhaust pipe, can reduce the influence of the heat radiation of this outlet pipe to crankcase.
To achieve these goals, the V-shape internal combustion engine for motor bike of the present invention's the 1st feature is loaded in state on the vehicle frame at it, has anterior unit and rear portion unit, this front portion unit and rear portion unit are the center with the bent axle along the left and right directions configuration, and V font ground, front and back is opening.Be connected with the gearbox portion of accommodating speed changer integratedly at the rear portion of the crankcase of accommodating bent axle, forwardly the front portion of unit is connecting anterior outlet pipe, connecting the rear part exhaust pipe at the rear portion of rear portion unit, it is characterized in that, lubricated portion to the front and rear unit is supplied with the lubrication oil pump of oil and supplies with the cooling waterpump of cooling water to the water jacket of front and rear unit, about the front upper place of bent axle, be located on the crankcase with being configured.
According to the 1st feature, because oil pump and water pump are configured in the front upper place of bent axle, so, can not form the rear portion of crankcase fully intrusively compactly with above-mentioned two pumps.Therefore, can guarantee has sufficient interval between crankcase rear portion and the rear part exhaust pipe, reduces the influence of the heat radiation of this outlet pipe to crankcase.
And because the above-mentioned configuration of two pumps, though the front portion of crankcase is the shape that how much bloats, its bellying is configured in the free space of anterior unit below, so, can not cause the maximization of internal-combustion engine E.
The 2nd feature of the present invention is to increase following characteristics on the basis of above-mentioned the 1st feature,, with respect to anterior unit, the adjacent spaces of the connecting rod of rear portion unit and two units is biased in accordingly a side of left and right directions that is; At the biased direction opposition side of rear portion unit with respect to anterior unit, muffler is configured in a side of trailing wheel, on face unit rear portion, rear portion, the muffler side, the outlet of the relief opening of this unit is set, connecting the rear part exhaust pipe that links to each other with muffler in this outlet port.
According to the 2nd feature, can reduce the curved part of rear part exhaust pipe, reduce its pipe resistance, improve output performance.
The 3rd feature of the present invention, be on the basis of the 1st or the 2nd feature, to increase following characteristics, promptly, bent axle, with an end of muffler opposition side on be adjacent to be connected regularly transmission device of front and rear, this front and rear regularly transmission device drives the moving valve camshaft of front and rear unit respectively.
According to the 3rd feature, can with front and rear regularly transmission device without any disposing the rear part exhaust pipe intrusively compactly.
The 4th feature of the present invention is to increase following characteristics on the 1st or the 2nd feature, that is, gearbox portion, the rear portion regularly transmission device side sidewall than the rear portion regularly transmission device be biased with more relying on the muffler side.
According to the 4th feature, by crankcase main body portion and gearbox portion are setovered slightly at left and right directions, even do not set the back rake angle of rear portion unit little especially, the chain stretcher can be installed on the rear wall of rear portion unit intrusively with adjustable lever and gearbox portion yet.
The 5th feature of the present invention is to increase following characteristics on the 3rd feature, that is, gearbox portion, the rear portion regularly transmission device side sidewall than the rear portion regularly transmission device be biased with more relying on the muffler side.
According to the 5th feature, by crankcase main body portion and gearbox portion are setovered slightly at left and right directions, even do not set the back rake angle of rear portion unit little especially, the chain stretcher can be installed on the rear wall of rear portion unit intrusively with adjustable lever and gearbox portion yet.
The 6th feature of the present invention is to increase following characteristics on the 1st or 2 features,, with being configured in the rear of bent axle before and after the input shaft of speed changer and the output shaft, simultaneously, the upper wall of accommodating their gearbox portion is formed flat condition that is.
According to the 6th feature, can guarantee has sufficient interval between gearbox portion and the rear part exhaust pipe, can reduce the influence of the heat radiation of this outlet pipe to gearbox portion.
The 7th feature of the present invention is to increase following characteristics on the 3rd feature,, with being configured in the rear of bent axle before and after the input shaft of speed changer and the output shaft, simultaneously, the upper wall of accommodating their gearbox portion is formed flat condition that is.
According to the 7th feature, can guarantee has sufficient interval between gearbox portion and the rear part exhaust pipe, can reduce the influence of the heat radiation of this outlet pipe to gearbox portion.
The 8th feature of the present invention is to increase following characteristics on the 4th feature,, with being configured in the rear of bent axle before and after the input shaft of speed changer and the output shaft, simultaneously, the upper wall of accommodating their gearbox portion is formed flat condition that is.
According to the 8th feature, can guarantee has sufficient interval between gearbox portion and the rear part exhaust pipe, can reduce the influence of the heat radiation of this outlet pipe to gearbox portion.
Fig. 1 is the profile that the motor bike of V-type internal combustion engine of the present invention is housed.
Fig. 2 is the side view of above-mentioned internal-combustion engine.
Fig. 3 is the amplification longitudinal section of 3-3 line among Fig. 2.
Fig. 4 is a 4-4 line sectional view among Fig. 3.
Fig. 5 is a 5-5 line sectional view among Fig. 2.
Fig. 6 is the cooling water system figure of above-mentioned internal-combustion engine.
Fig. 7 is a 7-7 line sectional view among Fig. 2.
Fig. 8 is the front and rear timing transmission device enlarged view all around of Fig. 3.
Fig. 9 is the speed changer enlarged view all around of Fig. 3.
Figure 10 is the plan view of the vent systems periphery of above-mentioned internal-combustion engine.
Figure 11 is the cylinder head plan view of the rear portion unit of above-mentioned internal-combustion engine.
Figure 12 is 12 direction views among Fig. 9.
Below, with reference to description of drawings one embodiment of the invention.
Fig. 1 is the side view that the motor bike of V-type internal combustion engine of the present invention is housed.Fig. 2 is the side view of above-mentioned internal-combustion engine.Fig. 3 is the amplification longitudinal section of 3-3 line among Fig. 2.Fig. 4 is a 4-4 line sectional view among Fig. 3.Fig. 5 is a 5-5 line sectional view among Fig. 2.Fig. 6 is the cooling water system figure of above-mentioned internal-combustion engine.Fig. 7 is a 7-7 line sectional view among Fig. 2.Fig. 8 is the front and rear timing transmission device enlarged view all around of Fig. 3.Fig. 9 is the enlarged view of the speed changer periphery of Fig. 3.Figure 10 is the plan view of the vent systems periphery of above-mentioned internal-combustion engine.Figure 11 is the cylinder head plan view of the rear portion unit of above-mentioned internal-combustion engine.Figure 12 is 12 direction views among Fig. 9.
In the following description, all around is that the vehicle body with motor bike is a benchmark.
(unitary construction of motor bike (seeing Fig. 1, Fig. 2))
At the front end of the vehicle frame 1 of motor bike M, but connecting the front fork (all not shown) of the supporting front-wheel of steering.At the rear portion of vehicle frame 1, connecting the back vent 3 of the supporting wheels 2 that can swing up and down, be folded with posterior bumper 7 between each rearward end of this back vent 3 and vehicle frame 1.
At the intermediate portion of vehicle frame 1, loading and have front and rear unit 4 1, 4 2V-type internal combustion engine E, fuel tank 5 is installed above it.At the rear portion of vehicle frame 1, main vehicle seat 6a and back seat 6b are installed continuously with the rear end of fuel tank 5.
Chain-driven unit 10 is configured in the left side of trailing wheel 2, between the output shaft 97 of this speed changer that chain-driven unit 10 is connected and internal-combustion engine E is connected with 8 and the wheel hub of trailing wheel 2.Starter motor 11 is configured in the front lower place of bent axle 15.
Front portion and rear portion unit 4 at internal-combustion engine E 1, 4 2Between paddy portion 28 places, be provided with the front and rear vaporizer 12 that is connecting with corresponding unit 1, 12 2Forwardly unit 4 1Front and rear portion unit 4 2The rear portion, connecting anterior outlet pipe 13 respectively 1With rear part exhaust pipe 13 2, this front portion outlet pipe 13 1With rear part exhaust pipe 13 2Be connected in the set of the front end of common muffler 14 and with it, this common muffler 14 is being held trailing wheel 2 ground under the arm and is being configured in the side opposite with chain-driven unit 10, is trailing wheel 2 right sides.
(unitary construction of internal-combustion engine (seeing Fig. 2, Fig. 3, Fig. 5, Fig. 8))
The anterior unit 4 of internal-combustion engine E 1With rear portion unit 4 2, around the bent axle 15 that disposes along left and right directions, disposing with opening front and back, 90 ° of ground.Bent axle 15 have a crank portion 16 and with the pairing left and right axle journal 17,18 of its two end part adjacency, crank portion 16 has crankpin 16a.This axle journal 17,18 is bearing on the crankcase 21 by ball bearing 19,20 respectively.
Front and rear unit 4 1, 4 2Have the cylinder block 22 on the inclined-plane, front and back, dihedral top that respectively bent axle 15 is bonded on crankcase 21 1, 22 2With the cylinder head 23 that engages in the top 1, 23 2, in each cylinder block 22 1, 22 2With cylinder head 23 1, 23 2On, form the water jacket 24 that is communicated with 1, 24 2
Chimeric each cylinder block 22 that is installed in 1, 22 2Cylinder thorax 25 1, 25 2Interior piston 26 1, 26 2, by connecting rod 27 1, 27 216a is connected with crankpin.At this moment, the rear portion unit 4 2Connecting rod 27 2 Unit 4 forwardly on crankpin 16a 1Connecting rod 27 1Left be adjacent to disposing, with these connecting rods 27 1, 27 2Left and right directions Offset S (Fig. 8) accordingly, rear portion unit 4 2Axis with respect to anterior unit 4 1Axis setover to left.
As shown in Figure 5, bent axle 15 from right axle journal 18 on the right part that foreign side stretches out, from its inboard the free wheel device 53 of starting transmission gear 94 and the actuation gear 54a of a transmission device 54 that links to each other with clutch 100 are installed successively, and they are disposing adjacent to each other.At this moment, the exterior part of free wheel device 53 is combining with bent axle 15 splines, is setting firmly starting gear 52 on its inner piece.Actuation gear 54a and bent axle 15 bonds are closed.
As shown in Figure 8, bent axle 15 from left axle journal 17 on the left part that foreign side stretches out, be used to drive anterior unit 4 from its inboard being installed with successively 1Moving valve cam axle 41 1Anterior regularly transmission device 46 1Driving timing sprocket wheel 42 1, be used to drive rear portion unit 4 2Moving valve cam axle 41 2Rear portion transmission device 46 regularly 2Driving timing sprocket wheel 42 2And the rotor 31 of generator 30, and they are disposing adjacent to each other.At this moment, rotor 31 closes with bent axle 15 bonds.About two driving timing sprocket wheels 42 1, 42 2Mounting construction will illustrate below.
The stator 32 of rotor 31 circumjacent generators 30 is fixed on the inwall of left side cover 33, and this left side is covered 33 and engaged with the left side of crankcase 21.
In the position of rotor 31 outer circumferential faces, forming projection 35, the crankshaft position sensor 36 that detects the rotational position of bent axle 15 synergistically with this projection is installed in the left side of crankcase 21.The output signal of this crankshaft position sensor 36 is used as the control signal of ignition mechanism and the input signal of tachometer.
On bent axle 15 and right parts generator 30 opposition sides, supporting starting gear 52 by free wheel device 53, in addition, be adjacent to closing actuation gear 54a one time with bond with this starting gear 52 with right side axle journal 18 adjacent ground connection.
According to above-mentioned structure,, can assemble regularly transmission device 46 of front and rear in the lump in the left part of bent axle 15 side 1, 46 2, its assembling performance is good.In addition, carrying out regularly transmission device 46 of front and rear 1, 46 2Maintenance the time, as long as the generator 30 in their outsides is unloaded from bent axle 15, do not have with other parts and anyly can easily keep in repair intrusively.And, since with two transmission devices 46 regularly of generator 30 1, 46 2Disposed adjacent, so, under steam from two timing transmission devices 46 1, 46 2The oily foam that disperses out splashes on the generator 30, can be effectively with its cooling.
In addition, owing to, disposing regularly transmission device 46 of front and rear in the left side of crankcase 21 1, 46 2With generator 30, disposing starting transmission gear 94, a transmission device 54 and a clutch 100 in the other side, so the weight balancing of crankcase 21 both sides is good, therefore, and when being loaded on the vehicle frame 1, the easy balance of left and right sides weight of motor bike M.
(moving valve system (seeing Fig. 2 to Fig. 4, Fig. 8, Fig. 9))
At each unit 4 1, 4 2Cylinder head 23 1, 23 2In, be provided with Aspirating valves 37 1, 37 2With outlet valve 38 1, 38 2, Aspirating valves 37 1, 37 2Near two units 4 1, 4 2Between the 28 side settings of paddy portion.In addition, in each cylinder head 23 1, 23 2In, also respectively by ball bearing 50,50 ' supporting camshaft 41 1, 41 2Two end part, this camshaft 41 1, 41 2Parallel with bent axle 15, by rocking arm 39 1, 39 2, 40 1, 40 2The suction of driven for opening and closing correspondence, outlet valve 37 1, 37 2, 38 1, 38 2Timing chain 44 1, 44 2Be wound on driving timing sprocket wheel 42 1, 42 2With passive timing sprocket wheel 43 1, 43 2On.This driving timing sprocket wheel 42 1, 42 2Be installed in the left part of bent axle 15, this passive timing sprocket wheel 43 1, 43 2Be installed in each unit 4 1, 4 2Camshaft 41 1, 41 2The left part.Above-mentioned two driving timing sprocket wheels 42 1, 42 2Have common wheel hub 45, this wheel hub 45 is pressed in abutting connection with the outer end of the left side axle journal 17 of bent axle 15.
Anterior unit 4 1Driving timing sprocket wheel 42 1, timing chain 44 1With passive timing sprocket wheel 43 1, constitute anterior regularly transmission device 46 1, this front portion is transmission device 46 regularly 1Pass to corresponding camshaft 41 after the rotational delay 1/2 with bent axle 15 1It is configured in anterior unit 4 1, the anterior regularly Transmission Room 47 on the sidewall that is formed on generator 30 sides 1In.Rear portion unit 4 2Driving timing sprocket wheel 42 2, timing chain 44 2With passive timing sprocket wheel 43 2, constitute regularly transmission device 46 of rear portion 2, this rear portion is transmission device 46 regularly 2Pass to corresponding camshaft 41 after the rotational delay 1/2 with bent axle 15 2It is configured in rear portion unit 4 2, be formed on the rear portion Transmission Room 47 regularly on the generator 30 side sidewalls 2In.
At this moment, rear portion timing transmission device 46 2, be configured in anterior regularly transmission device 46 1The axle direction outside, i.e. generator 30 sides.
Bent axle 15 shown in arrow R among Fig. 4 towards counterclockwise rotation, therefore, each timing chain 44 1, 44 2Rear side become slack-side.For these slack-side are applied certain force of strain, at each timing chain 44 1, 44 2Slack-side, butt arc chain stretcher 48 slidably 1, 48 2, these chain stretchers 48 1, 48 2Axle props up on crankcase 21 swingably.With known stretcher adjustable lever 49 1, 49 2Be installed in each unit 4 with bolt 109 respectively 1, 4 2Cylinder block 22 1, 22 2On the attachment face of back.This stretcher adjustable lever 49 1, 49 2With certain loading with chain stretcher 48 1, 48 2The length direction intermediate portion towards the timing chain 44 of correspondence 1, 44 2Pushing.
Crankcase 21 is split into left half chests body 21a and right half chests body 21b at its left and right directions central part, the outer ring of above-mentioned ball bearing 19,20 is installed on this left and right sides half chests body with being pressed in advance, left and right sides half chests body 21a, 21b in conjunction with the time, the left and right sides axle journal 17,18 of bent axle 15 gently is pressed into the inner ring of above-mentioned ball bearing 19,20 respectively, at this moment, in order to make adjacent and common wheel hub 45 to be pressed into the driving timing sprocket wheel 42 of bent axle 15 with the outside of left side axle journal 17 1, 42 2Can be by the inner ring of left side ball bearing 19, with driving timing sprocket wheel 42 1, 42 2 Outside diameter d 1 be set at the inner ring inner diameter d 2 that is slightly smaller than ball bearing 19.Therefore, when bent axle 15 is monomer, can be with two driving timing sprocket wheels 42 1, 42 2 Wheel hub 45 be pressed into, this is pressed into operation and can easily carries out.In addition,, can in machine run, suppress the vibration of ball bearing 19,20, reduce noise by ball bearing 19,20 gently being pressed on left and right sides half chests body 21a, 21b and the left and right sides crankshaft journal 17,18.
(vent systems (seeing Fig. 2, Figure 10 and Figure 11))
Anterior unit 4 1Relief opening 51 1Outlet, in its cylinder head 23 1The front opening mouthful, connecting anterior outlet pipe 13 here 1The upper reaches end.Rear portion unit 4 2Relief opening 51 2Outlet, in its cylinder head 23 2The rear portion, with rear portion transmission device 46 regularly 2Open mouth on the right flank of opposition side, on this, connecting rear part exhaust pipe 13 2The upper reaches end.
Anterior outlet pipe 13 1With rear part exhaust pipe 13 2, all be located at front and rear chain-driven unit 46 1, 46 2Opposition side, internal-combustion engine E right side side, be configured abreast up and down, and dirty end set back is connected with the muffler 14 that is configured in trailing wheel 2 right side sides.
Above-mentioned internal-combustion engine E, rear portion unit 4 2With respect to anterior unit 4 1One sidepiece of biased direction side, concentrated area are setting regularly transmission device 46 of front and rear 1, 46 2, on the other hand, in another side of internal-combustion engine, centralized configuration front and rear outlet pipe 13 abreast up and down 1, 13 2So,, can avoid two timing transmission devices 46 1, 46 2With two outlet pipes 13 1, 13 2Interference, the constriction of can trying one's best comprises two outlet pipes 13 1, 13 2The overall with of internal-combustion engine E.
At rear portion unit 4 2Cylinder head 23 2The relief opening 51 of rear portion right flank upper shed 2On connecting the rear part exhaust pipe 13 that is configured in motor bike M right side side 2So,, reduced rear part exhaust pipe 13 2Curved part, thereby reduce its pipe resistance, can improve output performance.
(transmission system (seeing Fig. 2, Fig. 3 and Fig. 9))
On crankcase 21, forming at rear portion unit 4 2The gearbox portion 95 that leans out of bottom, in this gearbox portion 95, accommodating the input shaft 96 and the output shaft 97 of speed changer 8, this input shaft 96 and output shaft 97 are in the back of bent axle 15 and in parallel, front and back are side by side.Their two ends respectively by a pair of ball bearing 98,98 ', 99,99 ' be bearing on the left and right sides wall of gearbox portion 95.The right part of input shaft 96 spline in conjunction with the inner piece 101 of clutch 100, the right side cover 34 that this clutch 100 is engaged with crankcase 21 right flanks is covered with, the inner at the exterior part 102 of clutch 100, driven gear 54b is installed one time, this driven gear 54b and above-mentioned actuation gear 54a engagement constitute No. one time transmission device 54.Between input shaft 96 and output shaft 97, selectively setting some level (being 5 grades among the figure) speed change gear group G1～G5.
The left side wall 95a (see figure 9) that is supporting the gearbox portion 95 of input shaft 96 and output shaft 97 left parts is offset to rear portion unit 4 2 Timing transmission device 46 2Right-hand.Therefore, rear portion unit 4 2 Timing transmission device 46 2In stretcher adjustable lever 49 2Be installed in rear portion unit 4 2Cylinder block 22 2During the back, can avoid interference with gearbox portion 95.
Because rear portion unit 4 2 Timing transmission device 46 2Be configured in anterior unit 4 1 Timing transmission device 46 1Foreign side, be left, so, gearbox portion 95 can be suppressed can realize the miniaturization of internal-combustion engine E for minimum towards right-hand Offset with respect to crankcase 21.
(vehicle speed sensor (seeing Fig. 2, Fig. 9 and Figure 12))
On the rear wall of gearbox portion 95, be provided with mounting hole 103, vehicle speed sensor 105 be fixed on the rear wall of gearbox portion 95 with bolt 110.The detection unit 105a of this vehicle speed sensor 105 stretches in the gearbox portion 95 by mounting hole 103.The detection unit 105a of this vehicle speed sensor 105 and end shelves driven gear, be that the crown of the driven gear 104 of top gear group G5 relatively is configured.
End shelves driven gear 104 splines are entrenched on the output shaft 97, by to the left gear shift and double as is the change gear that 2 fast gear train G2 are established, by its gear shift, make this outer peripheral gear not break away from the surveyed area of vehicle speed sensor 105.The corresponding signal of the number of teeth of the end shelves driven gear 104 in front of its detection unit of 105 of vehicle speed sensor and crosscut, export to the computer that figure does not show, calculate the speed of a motor vehicle according to input signal in this computer, the velocimeter on the instrument panel that the figure of motor bike M does not show (figure does not show) is gone up and is shown.
Like this, vehicle speed sensor 105 detects the rotation number with the end shelves driven gear 104 of output shaft 97 rotation always as the speed of a motor vehicle, because this vehicle speed sensor 105 is installed in the rear wall of gearbox portion 95, so it is installed not and the rear portion 4 of inclining towards gearbox portion 95 rear flank 2Disturb, also do not hinder the rear part exhaust pipe 13 that is installed in its rear portion 2
Form the rib 106 that covers below the vehicle speed sensor 105 on the back of gearbox portion 95, wearing through hole 107 in the central authorities of this rib 106, the lead 108 of vehicle speed sensor 105 passes this through hole 107.
As shown in Figure 2, on the back of gearbox portion 95 prominent integratedly establishing pairing left and right, on the suspension bracket portion 112 of next group 1, 112 2, in the front of crankcase 21, the prominent integratedly pairing left and right suspension bracket portion 112 that establishing 3, when internal-combustion engine E is loaded on the vehicle frame 1, these suspension bracket portions 112 1, 112 2, 112 3Combine with vehicle frame 1.Utilization is by the two groups of suspension bracket portions 112 in rear portion 1, 112 2Free space configuration vehicle speed sensor 105 that surround, gearbox portion 95 rears, so, space availability ratio can be improved.
Above-mentioned rib 106 plays the effect of protection vehicle speed sensor 105, defence when motor bike M travels from below sudden sand etc.In addition, the through hole 107 of wearing lead 108 also plays and will immerse the effect of rainwater in the rib 106, exhaust port that rinse water is discharged.
(lubrication system and cooling system (seeing Fig. 2, Fig. 3, Fig. 5 and Fig. 6))
As Fig. 2, Fig. 3 and shown in Figure 5, be combined in bond on the actuation gear 54a of bent axle 15 right parts, meshing pump driver gear 56 and a driven gear 54b at two different positions of its all direction.
Pump driver gear 56 bonds are combined on the pump shaft 61, and this pump shaft 61 is bearing on the right side cover 34 by bearing 86, and this right side cover 34 is bonded on the right side of crankcase 21.This pump shaft 61 is parallel to bent axle 15, and is configured in the front upper place of bent axle 15.
Setting firmly lubricated internal rotor 58 in the inner of pump shaft 61, setting firmly the impeller 63 of cooling water pump 62 in the outer end with Trochoidal oil pump 57.Accommodate the pump case 60 of the external rotor 59 of oil pump 57, be fixed on the next door 65 crankcase 21, rotating bearing ball bearing 20 with screw.Accommodate the pump case 64 of impeller 63, be fixed on the outer side surface of right side cover with bolt 87.Like this, oil pump 57 and water pump 62 are configured in last the place ahead of bent axle 15 coaxially.In addition, oil pump 57 in abutting connection with free wheel device 53 radial direction foreign sides be located in the crankcase 21.
At the suction port of oil pump 57, connecting strainer 67 by last suction pipe 68, this strainer 67 is arranged on the trapped fuel portion 66 interior (Fig. 2) of crankcase 21 bottoms.Exhaust port is by fuel feeding road 69 and bent axle 15 and each unit 4 1, 4 2 Camshaft 41 1, 41 2Lubricated portion and other lubricated portion be communicated with.
In the way on fuel feeding road 69, be provided with and be positioned at the oil strainer 70 of bent axle 15 directly over roughly.This oil strainer 70 is installed in the filter chamber 71 that is formed on the right side cover 34, and the lid 72 of closing the opening port of this chamber 71 is installed on the right side cover 34.In filter chamber 71, the 71a of inlet of oil strainer 70 outer circumferential sides is communicated with the exhaust port of oil pump 57 by the 69a of upper reaches portion that is formed on the fuel feeding road 69 on the crankcase 21.In addition, the 71b of room of outlet of all sides is communicated with 2 the oil circuit 69a of branch, 69c being formed on the fuel feeding road of covering on 72 69 in the oil strainer 70.The one oil circuit 69b of side branch is communicated with the lubricated portion 73 of bent axle 15 systems, and branch oil circuit 69d, the 69e of the oil circuit 69c of the opposing party branch before and after the place, mating face of crankcase 21 and right side cover 34 is branched off into again and comprises front and rear unit 4 1, 4 2Each camshaft 41 1, 41 2The lubricated portion 74 of moving valve system 1, 74 2Be communicated with.
Therefore, by the rotation of bent axle 15, when oil pump 57 was driven by pump driver gear 56 and pump shaft 61, the oil in the trapped fuel portion 66 was sent to filter chamber 71 after strainer 67 is sucted, after oil strainer 70 filtrations, supply with lubricated portion 73 and each unit 4 of bent axle 15 systems 1, 4 2The lubricated portion 74 of moving valve system 1, 74 2, can they are lubricated.And, because the above-mentioned configuration and the structure on oil pump 57, filter chamber 71, oil strainer 70 and fuel feeding road 69 can do one's utmost to shorten the length on fuel feeding road 69, simultaneously with front and rear unit 4 1, 4 2Lubrication system form the slightly structure of symmetry, can be with two units 4 1, 4 2Lubricated equably.
Oil strainer 70 is provided with safety valve 70b, and when having served as filter element part 70a obstruction, this safety valve 70b makes short circuit between 71a of inlet and the 71b of room of outlet.
In water pump 62, as shown in Figure 6, its suction pipe 75 is by water pipe 77 1Connect with the outlet of radiator 29 (as shown in Figure 1, being provided in the place ahead of internal-combustion engine E), discharge tube 76 is by water pipe 77 2With anterior unit 4 1Water jacket 24 1The bottom connect.
As previously mentioned, the front and rear unit 4 1, 4 2, in each cylinder block 22 1, 22 2With cylinder head 23 1, 23 2On, have the water jacket 24 of connection 1, 24 2In addition, at rear portion unit 4 2Cylinder head 23 2On, form chamber, interflow 80, water jacket 24 towards the front opening 2Top be communicated with this chamber, interflow 80.
Forwardly with rear portion unit 4 1, 4 2Opposing side on, prominent integratedly establishing and corresponding water jacket 24 1, 24 2The bottom joint 78 that is communicated with of bottom 1, 78 2, these joints 78 1, 78 2On connecting the bottom that is configured in paddy portion 28 and be communicated with water pipe 77 3Two ends.
Forwardly unit 4 1The back, form and its water jacket 23 1The top sub 79 that is communicated with of top 1At rear portion unit 4 2Cylinder head 23 2Go up below with screw and fixing the top sub 79 that is communicated with chamber 80, interflow 2Flange, the rear portion that is configured in paddy portion 28 is communicated with water pipe 77 4Two ends and these top subs 79 1, 79 2Connect.
In chamber 80, interflow, thermostat 82 is being set, and, keep this thermostat 82 and cover the thermostat lid 81 that collaborates chamber 80 opening portions, be bonded on cylinder head 23 2The front on.
Forming the outlet connection 83 that is communicated with the outlet of thermostat 82 on thermostat lid 81, this outlet connection 83 is by water pipe 77 5Be connected with the inlet of radiator 29.
At top sub 79 2On forming bypass outlet connection 84, this bypass pass-out mouth joint 84 by access 84 ' with collaborate chamber 80 and be communicated with.This bypass outlet connection 84 is by bypass water pipe 85, successively with rear portion unit 4 2 Vaporizer 12 2Hot room, anterior unit 4 1 Vaporizer 12 1Hot room and suction pipe 75 be communicated with.The diameter of bypass outlet connection 84 is little more a lot of than the outlet connection 83 of thermostat lid 81.
Water temperature when chamber 80, interflow becomes predetermined temperature when following, and thermostat 82 will collaborate to block between chamber 80 and the thermostat lid 81, simultaneously, open the access 84 that collaborates 84 of chamber 80 and bypass outlet connections '.When water temperature becomes set point of temperature when above, then thermostat 82 will collaborate chamber 80 and be communicated with 81 on thermostat lid, close simultaneously above-mentioned access 84 '.
Therefore, rotation by bent axle 15, when water pump 62 is driven by pump driver gear 56 and pump shaft 61, if the water temperature of chamber 80, interflow is lower, then thermostat 82 will collaborate blocking-up between chamber 80 and the thermostat lid 81, open simultaneously access 84 ', so cooling water is delivered to anterior unit 4 from discharge tube 76 earlier by water pump 62 1Water jacket 24 1, then, half directly is communicated with water pipe 77 through the bottom summary of this cooling water 3Move on to rear portion unit 4 2Water jacket 24 2Passed through anterior unit 4 1Water jacket 24 1Cooling water, be communicated with water pipe 77 through top 4After move on to rear portion unit 4 2Chamber, interflow 80, and passed through rear portion unit 4 2Water jacket 24 2Cooling water interflow, come out from bypass outlet connection 84 through access 84 ' backs from chamber 80, interflow, more successively through rear portion vaporizer 12 2With anterior vaporizer 12 1Hot room, return the suction pipe 75 of water pump 62, same repeatedly later on circulation because this cooling water is without radiator 29 circulations, thus can promote the warming-up of internal-combustion engine E, simultaneously, the vaporizer 12 of heating 1, 12 2, can prevent that their fuel nozzle from freezing on every side.
Along with the carrying out of the warming-up of internal-combustion engine E, when by two units 4 1, 4 2Water jacket 24 1, 24 2When the back surpasses specified value in the water temperature of the cooling water at 80 interflow, chamber, interflow, thermostat 82 will collaborate 81 on chamber 80 and thermostat lid and be communicated with, close simultaneously access 84 ', so, above-mentioned cooling water flow is to outlet connection 83 sides, through returning the suction pipe 75 of water pump 62 behind the radiator 29.After, same repeatedly circulation, so, use by the chilled cooling water of the thermolysis of radiator 29, can cool off two units 4 effectively 1, 4 2
Bottom and top are communicated with water pipe 77 3, 77 4Relatively shorter getting final product is because can be configured in two units 4 1, 4 2Between paddy portion, hidden at two units 4 1, 4 2Between, unshowy, do not destroy the outward appearance of internal-combustion engine E.
Thermostat 82 is arranged on and has cooled off front and rear unit 4 1, 4 2The chamber, interflow 80 at cooling water interflow in, so thermostat 82 is perception two units 4 conscientiously 1, 4 2Average water temperature, can be to two units 4 1, 4 2Carry out suitable water temperature control.And, do not need thermostat 82 pipe arrangements, pipe arrangement is oversimplified.
Because at rear portion unit 4 2Upper front, engaging thermostat lid 81, this thermostat lid 81 has forwards outstanding outlet connection 83, so, the water pipe 77 that this outlet connection 83 and radiator 29 are entered the mouth and be communicated with 5Bending few, can reduce its flow path resistance, and can improve aesthetic appearance.
Because at rear portion unit 4 2Top sub 79 2On, form than its diameter bypass outlet connection 84 little, that be communicated with chamber 80, interflow, so, top sub 79 2Past rear portion unit 4 with bypass outlet connection 84 2On installation can carry out in the lump.Can realize the simplification of pipe distribution operation.
In addition, because oil pump 57 and water pump 62 arranged coaxial are used by the common pump shaft 61 of an actuation gear 54a driving, drive these pumps, so the drive system of these pumps can be oversimplified.
And, because oil pump 57 is being configured in abutting connection with free wheel device 53 ground also because oil pump 57 and water pump 62 arranged coaxial can suppress the horizontal width increase of internal-combustion engine E at radial direction.
Owing to oil pump 57 and water pump 62 are configured in the place ahead and the top of bent axle 15, so, can make the rear portion of crankcase 21 and coupled gearbox portion 95 not form compact structure intrusively fully with oil pump 57 and water pump 62, the height off the ground of internal-combustion engine E can be guaranteed, and the height of occupant can be reduced easily with vehicle seat 6a, 6b.At this moment, by the above-mentioned configuration of oil pump 57 and water pump 62, even the front portion of crankcase 21 is the shape that bloats slightly, its bellying is also by anterior unit 4 1The dead space of below absorbs, so, do not hinder the miniaturization of internal-combustion engine E.
And, owing to occupy the drive system of two pumps 57,62 of bent axle 15 top positions, can avoid being immersed in the oil of trapped fuel portion 66, so this drive system does not stir oil, help to reduce power loss.
In addition, with the input shaft 96 of speed changer 8 and output shaft 97 and above-mentioned oil pump 57 and water pump 62 complete interference-free horizontal arrangement rear at bent axle 15, can realize the miniaturization of gearbox portion 95, and its upper wall can be formed flat condition, like this, can guarantee gearbox portion 95 and rear part exhaust pipe 13 fully 2Between distance, can easily avoid from rear part exhaust pipe 13 2The gearbox portion 95 and the variable-speed motor 8 of accommodating are within it produced heat affectings.
(starting system (seeing Fig. 2 and Fig. 7))
Recess 88 is accommodated in anterior bottom surface formation at crankcase 21, is disposing starter motor 11 here, and the parallel axes of starter motor 11 is in bent axle 15.The shell 89 of this starter motor 11, the tubular support 89a liquid of one end thickly is entrenched in the through hole 90, this through hole 90 is formed on above-mentioned end wall of accommodating recess 88, simultaneously, the installation wrist 89b of the other end is fastened on the crankcase 21 with bolt 111, like this, starter motor 11 is installed on the crankcase 21.The running shaft 91 of starter motor 11, its front end stretches in the crankcase 21, and the small gear 92 that is formed on its front end drives starting gear 52 by train of reduction gears 93.Starting gear 52, free wheel device 53 and train of reduction gears 93 constitute starting transmission gear 94, and starting transmission gear 94 is communicated with between starter motor 11 and the bent axle 15.
As mentioned above, owing to the front lower place that starter motor 11 is configured in bent axle 15, so, this starter motor 11 does not hinder the rear portion of crankcase 21 and the miniaturization of gearbox portion 95 yet, and, absorbed by the dead space of anterior unit 41 belows, so, do not hinder the miniaturization of internal-combustion engine E.In addition, by the above-mentioned configuration of starter motor 11, though train of reduction gears 93 is immersed in the oil in the trapped fuel portion 66 of crankcase 21 bottoms, but it only moves when machine start, in machine run, be failure to actuate, thus can not stir oil, thus do not cause power loss.
The invention is not restricted to the various embodiments described above, in the scope that does not break away from its main idea, can do various design alterations.
According to the 1st feature of the present invention, because the lubricated section to the front and rear unit is supplied with The oil pump for lubrication of oil and supply with the cold of cooling water to the water collar of front and rear unit But be located on the crankcase about the front upper place of bent axle with water pump with being configured, so, can With fully intrusively can the compact rear portion that forms crankcase with above-mentioned two pumps. Therefore, can be true Protecting between crankcase rear portion and the rear part exhaust pipe has sufficient interval, reduces loosing of this blast pipe Heat is to the impact of crankcase. And, because the above-mentioned configuration of two pumps, although crankcase before Section is the shape that how much bloats, but its bellying is configured in the free space of anterior unit below In, so, do not cause the maximization of internal combustion engine E.
According to the 2nd feature of the present invention, because adjacent with the connecting rod of rear portion unit and two units The interval is biased in a side of left and right directions accordingly with respect to anterior unit; In rear portion unit phase For the biased direction opposition side of anterior unit, muffler is configured in a side of trailing wheel; Unit rear portion, rear portion, on the muffler side side, the exhaust outlet of offering this unit goes out Mouthful, because connecting the rear part exhaust pipe that links to each other with muffler in this exit, so, Can reduce the bend of rear part exhaust pipe, reduce its pipe resistance, improve output performance.
According to the 3rd feature of the present invention and since bent axle, with the muffler opposition side Be adjacent to connecting the front and rear timing transmission device on one end, this front and rear is fixed The time transmission device drive respectively the moving valve camshaft of front and rear unit, so, can with The front and rear timing transmission device is without any disposing compactly intrusively the rear part exhaust pipe.
According to the 4th feature of the present invention since gearbox section, rear portion timing transmission device side Sidewall is being biased than rear portion timing transmission device with more relying on the muffler side, so, By crankcase body and gearbox section are setovered slightly at left and right directions, even not special Set the back rake angle of rear portion unit little, also can be with chain stretcher adjusting rod and gearbox Section is not installed on the rear wall of rear portion unit intrusively.
According to the 5th feature of the present invention, owing to power shaft and the ground, output shaft front and back with speed changer Be configured in the rear of bent axle, simultaneously, form the upper wall of accommodating their gearbox section flat Smooth shape is so can guarantee has sufficient interval between gearbox section and the rear part exhaust pipe, can Reduce the heat radiation of this blast pipe to the impact of gearbox section.

Claims (8)

1. V-shape internal combustion engine for motor bike is loaded in state on the vehicle frame (1) at it, has anterior unit (4 1) and rear portion unit (4 2), this front portion unit (4 1) and rear portion unit (4 2) be the center with bent axle (15) along left and right directions configuration, V font ground, front and back is opening, and is being connected with the gearbox portion (95) of accommodating speed changer (8) integratedly at the rear portion of the crankcase of accommodating bent axle (15) (21), and forwardly unit (4 1) the front portion connecting anterior outlet pipe (13 1), at rear portion unit (4 2) the rear portion, connecting rear part exhaust pipe (13 2), it is characterized in that,
To front and rear unit (4 1, 4 2) lubricated portion supply with the lubrication oil pump (57) of oil and to front and rear unit (4 1, 4 2) water jacket (24 1, 24 2) cooling waterpump (62) of supplying with cooling water is located on the crankcase (21) being configured to land about the front upper place of bent axle (15).
2. V-shape internal combustion engine for motor bike as claimed in claim 1 is characterized in that, with two units (4 1, 4 2) connecting rod (27 1, 27 2) adjacent spaces (S) accordingly with rear portion unit (4 2) with respect to anterior unit (4 1) be biased in a side of left and right directions, at rear portion unit (4 1) with respect to anterior unit (4 1) biased direction opposition side muffler (14) be configured in a side of trailing wheel (2), at rear portion unit (4 2) offering this unit (4 on the side rear portion, muffler (14) side 2) relief opening (51 2) outlet, connecting the rear part exhaust pipe (13 that links to each other with muffler (14) in this outlet port 2).
3. V-shape internal combustion engine for motor bike as claimed in claim 1 or 2 is characterized in that, bent axle (15), with an end of muffler (14) opposition side on be adjacent to be connected regularly transmission device (46 of front and rear 1, 46 2), this front and rear is transmission device (46 regularly 1, 46 2) drive front and rear unit (4 respectively 1, 4 2) moving valve with camshaft (41 1, 41 2).
4. V-shape internal combustion engine for motor bike as claimed in claim 1 or 2 is characterized in that, gearbox portion (95), rear portion transmission device (46 regularly 2) sidewall (95a) of side is than rear portion transmission device (46 regularly 2) be biased with more relying on muffler (14) side.
5. V-shape internal combustion engine for motor bike as claimed in claim 3 is characterized in that, gearbox portion (95), rear portion transmission device (46 regularly 2) sidewall (95a) of side is than rear portion transmission device (46 regularly 2) be biased with more relying on muffler (14) side.
6. V-shape internal combustion engine for motor bike as claimed in claim 1 or 2, it is characterized in that, be configured in the rear of bent axle (15) before and after the input shaft (96) of speed changer (8) and the output shaft (97), simultaneously, the upper wall of accommodating their gearbox portion (95) forms flat condition.
7. V-shape internal combustion engine for motor bike as claimed in claim 3, it is characterized in that, be configured in the rear of bent axle (15) before and after the input shaft (96) of speed changer (8) and the output shaft (97), simultaneously, the upper wall of accommodating their gearbox portion (95) forms flat condition.
8. V-shape internal combustion engine for motor bike as claimed in claim 4, it is characterized in that, be configured in the rear of bent axle (15) before and after the input shaft (96) of speed changer (8) and the output shaft (97), simultaneously, the upper wall of accommodating their gearbox portion (95) forms flat condition.
CN99118811A 1998-09-14 1999-09-13 V-shape internal combustion engine for motor bike Expired - Fee Related CN1111642C (en)

Applications Claiming Priority (2)

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JP26070498A JP3954732B2 (en) 1998-09-14 1998-09-14 V-type internal combustion engine for motorcycles
JP260704/1998 1998-09-14

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CN1111642C true CN1111642C (en) 2003-06-18

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KR (1) KR100360810B1 (en)
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JP2003083161A (en) * 2001-09-10 2003-03-19 Honda Motor Co Ltd V-type engine for motorcycle
JP3953298B2 (en) 2001-10-26 2007-08-08 本田技研工業株式会社 Vehicle power unit
JP2004092423A (en) * 2002-08-29 2004-03-25 Yamaha Motor Co Ltd Motorcycle engine
JP4757060B2 (en) 2006-02-28 2011-08-24 本田技研工業株式会社 Auxiliary structure of internal combustion engine for motorcycle
ES2348430B1 (en) * 2007-03-28 2011-11-28 Honda Motor Co, Ltd INTERNAL COMBUSTION MOTOR FOR VEHICLE.
JP4846679B2 (en) * 2007-08-31 2011-12-28 本田技研工業株式会社 V-type engine for vehicles
JP5903263B2 (en) 2011-03-31 2016-04-13 本田技研工業株式会社 Water-cooled V-type engine
JP2014125930A (en) * 2012-12-26 2014-07-07 Honda Motor Co Ltd Casing structure of water-cooled internal combustion engine
JP6102265B2 (en) * 2013-01-09 2017-03-29 スズキ株式会社 Balancer device for vehicle engine

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EP0987413A2 (en) 2000-03-22
CO4850638A1 (en) 1999-10-26
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BR9904103A (en) 2000-09-26
CN1247937A (en) 2000-03-22
EP0987413B1 (en) 2003-10-01
AR015321A1 (en) 2001-04-18
JP2000087758A (en) 2000-03-28
KR100360810B1 (en) 2002-11-13
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DE69911708D1 (en) 2003-11-06
JP3954732B2 (en) 2007-08-08

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