CN1107158C - V-shape internal combustion engine for motor bike - Google Patents
V-shape internal combustion engine for motor bike Download PDFInfo
- Publication number
- CN1107158C CN1107158C CN99118813A CN99118813A CN1107158C CN 1107158 C CN1107158 C CN 1107158C CN 99118813 A CN99118813 A CN 99118813A CN 99118813 A CN99118813 A CN 99118813A CN 1107158 C CN1107158 C CN 1107158C
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- CN
- China
- Prior art keywords
- unit
- bent axle
- combustion engine
- crankcase
- pump
- 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.)
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Classifications
-
- 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
- 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]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
Abstract
To provide a V-type internal combustion engine for a motorcycle, having a front bank and a rear bank, which is capable of compactly forming a rear portion of a crank case and a mission case portion continuous thereto without any interference with a lubricating oil pump and a cooling water pump. A lubricating oil pump (57) for supplying oil to portions to be lubricated of a front bank and a rear bank (41,42), and a cooling water pump (62) for supplying cooling water to water jackets (241,242) of the front and rear banks (41,42) are provided in a crank case (21) in such a manner as to be laterally disposed in front of and over a crank shaft (15).
Description
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 that front and back, center V font opens with the bent axle along the left and right directions configuration.At the rear portion of the crankcase of accommodating bent axle, be connected with the gearbox portion of accommodating speed changer integratedly.
Above-mentioned V-shape internal combustion engine for motor bike, in the prior art, as the motor vehicular engine and known (for example in Japanese kokai publication hei 6-173832 number open).
In the existing V-shape internal combustion engine for motor bike, lubrication oil pump and cooling water pump dispose along the vertical direction at the rear portion of crankcase, so, have to form the rear portion of crankcase darker.In addition, for fear of the interference of these pumps and speed changer, speed changer case portion must be leant out widely towards the crankcase rear.Cause the maximization of internal-combustion engine like this, be not easy to guarantee the road clearance of internal-combustion engine and reduce the height of occupant with vehicle seat.
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, can there be any crankcase rear portion and speed changer case portion of forming intrusively, compactly with lubrication oil pump and cooling water pump, can guarantee the road clearance of internal-combustion engine, reduce the height of occupant with vehicle seat.
To achieve these goals, the V-shape internal combustion engine for motor bike of the present invention's the 1st feature, be loaded in state on the vehicle frame at it, have anterior unit and rear portion unit, this front portion unit and rear portion unit are that front and back, center V font opens with the bent axle along the left and right directions configuration, rear portion at the crankcase of accommodating bent axle, be connected with the speed changer case portion of accommodating speed changer integratedly, it is characterized in that, lubrication oil pump from oil to the lubricated portion of front and rear unit that supply with, and supply with the cooling waterpump of cooling water to the water jacket of front and rear unit, be located on the crankcase along left and right directions in the front upper place of bent axle with arranging.
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 and coupled gearbox portion intrusively compactly fully with above-mentioned two pumps, can easily guarantee the road clearance of internal-combustion engine, reduce the height of occupant with vehicle seat.At this moment, by the above-mentioned configuration of oil pump and water pump, though the front portion of crankcase is the shape that bloats slightly, 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, that is, lubrication oil pump and cooling water pump be configured in coaxial on, simultaneously, the two ends of the single pump shaft that is often driven by bent axle are connected on these pumps.
According to the 2nd feature, can drive above-mentioned oil pump and water pump always by common transmission system by bent axle, this delivery system is oversimplified.And, occupying the drive system of two pumps of bent axle top position, can avoid being impregnated in the oil of crankcase trapped fuel portion, so this drive system does not stir oil, can reduce power loss.
The 3rd feature of the present invention is to increase following characteristics on the basis of the 1st or the 2nd feature, that is, starter motor is connected with bent axle by starting transmission gear, and this starter motor is installed on the crankcase with being positioned at position, bent axle front lower place.
According to the 3rd feature, be configured in the starter motor of bent axle front lower place, do not hinder the miniaturization of crankcase rear portion and gearbox portion yet, and, owing to be configured in the free space of anterior unit below, so, do not cause the maximization of internal-combustion engine.In addition, because the above-mentioned configuration of starter motor, though starting transmission gear is immersed in the oil in the trapped fuel portion of crankcase bottom, its start when machine start is failure to actuate in the operation of a machine, so can not stir oil, does not cause power loss.
The 4th feature of the present invention, be on the basis of the 1st or the 2nd feature, to increase following characteristics, promptly, occupy bent axle directly over position ground the filter chamber is formed on the crankcase, oil strainer is installed in the filter chamber, the filter chamber is divided into inlet that links to each other with the exhaust port of lubrication oil pump and the room of outlet that links to each other with the lubricated portion of front and rear portions unit with this oil strainer.
According to the 4th feature, by the above-mentioned configuration of oil pump, filter chamber and oil strainer, can do one's utmost to shorten the length on fuel feeding road, can roughly constitute the lubrication system of front and rear unit simultaneously symmetrically, make two units impartial lubricated.
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 speed changer enlarged view all around of Fig. 3.
Figure 10 is the vent systems plan view all around 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
2Unit 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.
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
IThe 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.
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))
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, by anterior unit 4
1The dead space of below absorbs, 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, internal-combustion engine is loaded in the state on the vehicle frame, has anterior unit and rear portion unit, and this front portion unit and rear portion unit are open V font before and after the center is with the bent axle along the left and right directions configuration.Be connected with the gearbox portion of accommodating speed changer integratedly at the rear portion of the crankcase of accommodating bent axle, because the cooling water pump of the lubricated portion to the front and rear unit being supplied with the lubrication oil pump of oil and supplying with cooling water to the water jacket of front and rear unit is located on the crankcase along left and right directions in the front upper place of bent axle with arranging, so the rear portion of crankcase and coupled gearbox portion can not be formed with above-mentioned two pumps fully intrusively compactly.Therefore, can guarantee the road clearance of internal-combustion engine and the height that the reduction occupant uses vehicle seat.And because the above-mentioned configuration of oil pump and water pump, though the front portion of crankcase is the shape that bloats slightly, its bellying is configured in the free space of anterior unit below, so, do not cause the maximization of internal-combustion engine E.
According to the 2nd feature of the present invention, because lubrication oil pump and cooling water pump arranged coaxial, the two ends of the single pump shaft that is often driven by bent axle are connected on these pumps, so, can often drive above-mentioned oil pump and water pump by common transmission system by bent axle, this transmission system is oversimplified.And the drive system that occupies two pumps of bent axle top position is not impregnated in the oil of crankcase trapped fuel portion, so this drive system does not stir oil, can help to reduce power loss.
According to the 3rd feature of the present invention, because the starter motor that is connected with bent axle by starting transmission gear, be installed on the crankcase with occupying the bent axle lower position, so, starter motor does not hinder the miniaturization of crankcase rear portion and gearbox portion yet, and, owing to be configured in the free space of anterior unit below, so, do not cause the maximization of internal-combustion engine.In addition, because the above-mentioned configuration of starter motor, though starting transmission gear is immersed in the oil of trapped fuel portion of crankcase bottom, it is failure to actuate in machine run, so, can not stir oil, can not cause power loss yet.
According to the 4th feature of the present invention, owing to ground, position directly over the summary that occupies bent axle is formed on the filter chamber on the crankcase, oil strainer is installed in the filter chamber, the filter chamber is divided into inlet that links to each other with the exhaust port of lubrication oil pump and the room of outlet that links to each other with the lubricated portion of front and rear part unit with this oil strainer.So, can do one's utmost to shorten the length on fuel feeding road, can omit the lubrication system that constitutes the front and rear unit symmetrically simultaneously, make two units impartial lubricated.
Claims (4)
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), 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) supply with the cooling waterpump (62) of cooling water, be located on the crankcase (21) along left and right directions in bent axle (15) front upper place with arranging.
2. V-shape internal combustion engine for motor bike as claimed in claim 1, it is characterized in that, with lubrication oil pump (57) and cooling water pump (62) be configured in coaxial on, on this two pump (57,62), connecting the two ends of the single pump shaft (61) that is often driven by bent axle (15).
3. V-shape internal combustion engine for motor bike as claimed in claim 1 or 2, it is characterized in that, starter motor (11) is connected with bent axle (15) by starting transmission gear (94), this starter motor (11) occupy bent axle (15) the position, front lower place be installed on the crankcase (21).
4. V-shape internal combustion engine for motor bike as claimed in claim 1 or 2, it is characterized in that, occupy bent axle (15) directly over position ground go up at crankcase (21) and form filter chamber (71), oil strainer (70) is installed in this filter chamber (71), with this oil strainer (70) with filter chamber (71) be divided into the inlet (71a) that is communicated with the exhaust port of lubrication oil pump (57) and with front and rear part unit (4
1, 4
2) the room of outlet (71b) that is communicated with of lubricated portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP260065/1998 | 1998-09-14 | ||
| JP26006598A JP4021068B2 (en) | 1998-09-14 | 1998-09-14 | V-type internal combustion engine for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1247939A CN1247939A (en) | 2000-03-22 |
| CN1107158C true CN1107158C (en) | 2003-04-30 |
Family
ID=17342829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99118813A Expired - Fee Related CN1107158C (en) | 1998-09-14 | 1999-09-13 | V-shape internal combustion engine for motor bike |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0987416B1 (en) |
| JP (1) | JP4021068B2 (en) |
| KR (1) | KR100360809B1 (en) |
| CN (1) | CN1107158C (en) |
| AR (1) | AR015318A1 (en) |
| BR (1) | BR9904097A (en) |
| CO (1) | CO4850635A1 (en) |
| DE (1) | DE69915199T2 (en) |
| ES (1) | ES2217659T3 (en) |
| TW (1) | TW404917B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410103A (en) * | 2011-09-30 | 2012-04-11 | 洛阳北方企业集团有限公司 | Crankcase structure of motorcycle engine |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3820970B2 (en) | 2001-11-28 | 2006-09-13 | スズキ株式会社 | Lubricating oil cooling structure for motorcycles |
| JP3989716B2 (en) * | 2001-11-28 | 2007-10-10 | ヤマハ発動機株式会社 | Lubricating oil supply structure for engine |
| JP2007218173A (en) * | 2006-02-16 | 2007-08-30 | Yamaha Motor Co Ltd | Engine |
| JP4430658B2 (en) | 2006-12-22 | 2010-03-10 | 本田技研工業株式会社 | V type engine |
| JP5219883B2 (en) * | 2009-02-24 | 2013-06-26 | 本田技研工業株式会社 | Starter motor arrangement structure of internal combustion engine |
| JP5339604B2 (en) * | 2009-03-30 | 2013-11-13 | 本田技研工業株式会社 | Motorcycle |
| GB0910152D0 (en) * | 2009-06-12 | 2009-07-29 | Mcfarlane Stephen R | Starter motor arrangement |
| CN110520613B (en) * | 2017-03-28 | 2022-04-12 | 本田技研工业株式会社 | Internal combustion engine |
| CN109209628B (en) * | 2018-09-26 | 2021-02-26 | 河北华北柴油机有限责任公司 | Diesel engine with reduced height |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497293A (en) * | 1981-11-28 | 1985-02-05 | Honda Giken Kogyo Kabushiki Kaisha | Internal combustion engine of motorcycle |
| JPS6173832A (en) * | 1984-09-19 | 1986-04-16 | Kawasaki Steel Corp | Manufacture of grain oriented silicon steel sheet having low iron loss |
| US4903483A (en) * | 1988-02-17 | 1990-02-27 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system for V-type engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4960081A (en) * | 1988-12-16 | 1990-10-02 | Yamaha Hatsudoki Kabushiki Kaisha | Belt driven camshaft mechanism for internal combustion engine |
| JP3189020B2 (en) | 1992-12-08 | 2001-07-16 | ヤマハ発動機株式会社 | Motorcycle engine |
-
1998
- 1998-09-14 JP JP26006598A patent/JP4021068B2/en not_active Expired - Fee Related
-
1999
- 1999-08-12 TW TW088113829A patent/TW404917B/en not_active IP Right Cessation
- 1999-08-31 ES ES99117155T patent/ES2217659T3/en not_active Expired - Lifetime
- 1999-08-31 EP EP99117155A patent/EP0987416B1/en not_active Expired - Lifetime
- 1999-08-31 DE DE69915199T patent/DE69915199T2/en not_active Expired - Lifetime
- 1999-09-13 CO CO99057883A patent/CO4850635A1/en unknown
- 1999-09-13 AR ARP990104573A patent/AR015318A1/en active IP Right Grant
- 1999-09-13 CN CN99118813A patent/CN1107158C/en not_active Expired - Fee Related
- 1999-09-13 BR BR9904097-2A patent/BR9904097A/en not_active IP Right Cessation
- 1999-09-14 KR KR1019990039309A patent/KR100360809B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497293A (en) * | 1981-11-28 | 1985-02-05 | Honda Giken Kogyo Kabushiki Kaisha | Internal combustion engine of motorcycle |
| JPS6173832A (en) * | 1984-09-19 | 1986-04-16 | Kawasaki Steel Corp | Manufacture of grain oriented silicon steel sheet having low iron loss |
| US4903483A (en) * | 1988-02-17 | 1990-02-27 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system for V-type engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410103A (en) * | 2011-09-30 | 2012-04-11 | 洛阳北方企业集团有限公司 | Crankcase structure of motorcycle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000023138A (en) | 2000-04-25 |
| EP0987416A2 (en) | 2000-03-22 |
| CN1247939A (en) | 2000-03-22 |
| CO4850635A1 (en) | 1999-10-26 |
| BR9904097A (en) | 2000-09-26 |
| AR015318A1 (en) | 2001-04-18 |
| EP0987416B1 (en) | 2004-03-03 |
| EP0987416A3 (en) | 2000-12-13 |
| JP4021068B2 (en) | 2007-12-12 |
| DE69915199T2 (en) | 2004-07-29 |
| ES2217659T3 (en) | 2004-11-01 |
| TW404917B (en) | 2000-09-11 |
| DE69915199D1 (en) | 2004-04-08 |
| KR100360809B1 (en) | 2002-11-13 |
| JP2000087755A (en) | 2000-03-28 |
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| CF01 | Termination of patent right due to non-payment of annual fee |