CN101153551A - Oil passage structure - Google Patents

Oil passage structure Download PDF

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Publication number
CN101153551A
CN101153551A CNA2007101617865A CN200710161786A CN101153551A CN 101153551 A CN101153551 A CN 101153551A CN A2007101617865 A CNA2007101617865 A CN A2007101617865A CN 200710161786 A CN200710161786 A CN 200710161786A CN 101153551 A CN101153551 A CN 101153551A
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CN
China
Prior art keywords
oil
crankcase
oil circuit
cylinder
supply passage
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Granted
Application number
CNA2007101617865A
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Chinese (zh)
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CN101153551B (en
Inventor
新妻桂一郎
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority claimed from JP2006267116A external-priority patent/JP2008088821A/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of CN101153551A publication Critical patent/CN101153551A/en
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Publication of CN101153551B publication Critical patent/CN101153551B/en
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Abstract

To provide oil passage structure where a manhour and a cost for assembly is reduced, securing the sealing performance of each oil passage on a division plane of a crankcase and each oil passage can be easily made to communicate, avoiding the large-sizing of an engine. An oil outflow passage 72 and a main oil passage 76 respectively extended across the division plane of the crankcase substantially in parallel with a crankshaft are provided, a communicating groove 75 that connects the oil outflow passage 72 and the main oil gallery 76 is formed on the division plane of at least one divided body (a left case half 21a) of the crankcase, and an endless sealing member 78 that integrally surrounds the peripheries of the followings is provided to the oil outflow passage 72, the main oil gallery 76 and the communicating groove 75 each half of which is mutually opposite on the division plane.

Description

Oil channel structures
Technical field
The present invention relates to the oil channel structures of the motor of motorcycle and other vehicles.
Background technique
In the oil channel structures of common form, when each the bar oil circuit that separates on the branch boundary plane at crankcase was connected to each other, oil circuit was connected (for example, referring to patent documentation 1) hermetically by sleeve pipe with Sealing.
[patent documentation 1] JP-A No.2001-342816
When having two oil circuits that separate on the branch boundary plane at crankcase, need be individually formed communication paths, to be communicated with two oil circuits.Will produce following problem like this, promptly owing to will fix another oil circuit, institute is complexity so that motor becomes, and size becomes big easily simultaneously, and also increase the man-hour of manufacturing communication paths.In addition, also cause and need use two Sealings to seal surface separately, and the problem of the man-hour of feasible assembling thus and cost increase.
In addition, disclose a kind of like this oil channel structures, wherein oil circuit forms (for example, referring to patent documentation 2) from two ends to each crankshaft bearing along the axially extended main oil duct of bent axle the crankcase.Supply with the machine oil of each crankshaft bearing, around cylinder and cylinder head supply camshaft, perhaps by around the bent axle supply connecting rod.
[patent documentation 2] JP-A No.2001-280111
In above-mentioned oil channel structures, the machine oil by oil purifier enters the lubricant oil supply passage that extends in parallel with bent axle, and the oil circuit by meeting at right angles and extend with the lubricant oil supply passage basically, supplies with crankshaft bearing.
Yet, machine oil need be supplied with various piece, for example not only need to supply with crankshaft bearing, and want balance and supply with the generator that for example is arranged in the crankcase cover sufficiently and the camshaft that drives by the cam chain on the side that is arranged on cylinder and cylinder head (cam train).Therefore wish to realize a kind of simple and compact layout, wherein make and to simplify leading to processing such as a plurality of oil circuits of the various piece of generator and camshaft.
Summary of the invention
Therefore, the invention provides a kind of oil channel structures, wherein can reduce the man-hour and the cost of assembling, guarantee the sealability of each oil circuit on the branch boundary plane of crankcase, and each oil circuit can easily be communicated with, avoid size of engine to increase.
Therefore, the invention provides a kind of oil channel structures, wherein can be and each part of supply engine sufficiently with the machine oil balance, and many oil circuits can simply and compactly be arranged.
In order to deal with problems, according to a kind of motor of the present invention is based on of claim 1 (for example, motor E among the embodiment) oil channel structures, wherein supporting crankshaft (for example, bent axle 31 among the embodiment) crankcase (for example, crankcase 21 among the embodiment) crank axially on be separated, described oil channel structures is provided with: the branch boundary plane that passes described crankcase (for example, branch boundary plane B1 among the embodiment) first and second oil circuits (for example, oily outflow pathway 72 among the embodiment and main oil duct 76) that extend in parallel with described bent axle basically; The connectivity slot (for example, the connectivity slot 75 among the embodiment) that connects each oil circuit, this connectivity slot are formed on the branch boundary plane of at least one main body of separating (for example, the left half chests body 21a among the embodiment) of described crankcase; Integrally center on the lip ring (for example, the Sealing 78 among the embodiment) of the periphery of described oil circuit, for its each half part oil circuit respect to one another and connectivity slot on minute boundary plane are provided with described lip ring.
In the present invention according to claim 2, the oil purifier of filter cartridge type (cartridge type) (for example, oil purifier 68 among the embodiment) is connected to a side of crankcase, the oil outlet of first oil circuit and oil purifier (for example, oil outlet 68d among the embodiment) is communicated with, and (for example, each crankshaft bearing 36a among the embodiment 36b) is communicated with the crankshaft bearing of second oil circuit and crankcase.
In the present invention according to claim 3, the oil channel structures of motor (for example, the motor E among the embodiment) also is provided with: from the outstanding cylinder (for example, the cylinder among the embodiment 32) of crankcase; The cylinder head that is connected with the end of this cylinder (for example, the cylinder head among the embodiment 33); Cover the crankcase cover (for example, the right case lid 21c among the embodiment) of a side of crankcase; With the generator (generator) (for example, the generator among the embodiment 37) that is arranged in the crankcase.In addition, the present invention according to claim 3 also is provided with: from a crankshaft bearing (for example, left crankshaft bearing 36a among the embodiment), by cylinder and cylinder head, with the engine oil supplying camshaft (for example, camshaft 52 among the embodiment) the camshaft lubrication oil supply passage around (for example, the oil of the camshaft lubrication among embodiment supply passage 120); From another crankshaft bearing (for example right crankshaft bearing 36b the embodiment), by bent axle, with the oil of the connecting rod lubrication around the engine oil supplying connecting rod (for example, the connecting rod among the embodiment 35) supply passage (for example, the oil of the connecting rod lubrication among embodiment supply passage 48); By crankcase cover, with the engine lubricating oil supply passage (for example engine lubricating oil supply passage 46 among the embodiment) of engine oil supplying generator; With the main oil duct (for example, the main oil duct 76 among the embodiment) that axially further extends to the outside of each crankshaft bearing along bent axle.This main oil duct branches into: first oil circuit (for example, the lubricant oil supply passage 42a in the left bearing among the embodiment) that is communicated with camshaft lubrication oil supply passage; Second oil circuit (for example, the lubricant oil supply passage 42b in the right bearing among the embodiment) that is communicated with connecting rod lubrication oil supply passage; With the 3rd oil circuit that is communicated with the engine lubricating oil supply passage (for example, embodiment's the oil circuit that starts pusher side 44).
In the present invention according to claim 4, cylinder be provided with cylinder and cylinder head be fastened on the crankcase the bolt-inserting hole that is used for stud bolt (for example, bolt-inserting hole 114 among the embodiment), camshaft lubrication oil supply passage by this bolt-inserting hole from cam chain (for example, cam chain 54 among the embodiment) crankshaft bearing on the reverse side is communicated with cylinder head, and machine oil by the sidewall on the reverse side that is located at cylinder head convexity endless chain (for example, left side wall 33b among the embodiment) around the oil circuit in the lid on (for example, the inclination oil circuit 118 in vertical oil circuit in the lid among the embodiment 117 and the lid) the supply camshaft.
In the present invention according to claim 5, the oil circuit that is communicated with the upstream side of main oil duct (for example, the oily outflow pathway 72 among the embodiment) is provided with near water jacket (for example, the cooling water communication paths 74 among the embodiment).
In the present invention, between crankshaft bearing on motor (for example, the right crankshaft bearing 36b among the embodiment) and the motor cam chain and oil pump chain (for example, the chain among the embodiment 85) are set according to claim 6.
The present invention according to claim 1, by when the separate section of each oil circuit of sealing on minute boundary plane, utilize lip ring integrally to seal each oil circuit and the separate section of connectivity slot on minute boundary plane, the sealability of each oil circuit on minute boundary plane can be guaranteed, and the man-hour and the cost of assembling can be reduced.Because only by on the branch boundary plane of crankcase, forming connectivity slot, each oil circuit is communicated with, so oil channel structures is simple, the layout degrees of freedom of each oil circuit improves, and can avoid the size of motor to increase and reduce the man-hour of processing communication paths.
The present invention according to claim 2, when the exhaust port of the oiler of oil purifier and oil pump is oppositely arranged, second oil circuit of the main oil duct that first oil circuit that is communicated with the oil outlet of oil purifier and conduct are communicated with crankshaft bearing can divide be arranged (arrange off), but because in this case, each oil circuit is communicated with, so can form effective oil channel structures, and the layout degrees of freedom of each oil circuit can improve.
The present invention according to claim 3, because with oil supply with camshaft around first oil circuit, with oil supply with connecting rod around second oil circuit and the 3rd oil circuit of oily supply generator directly come out from main oil duct branch, so can reduce the coiling of oil circuit, can reduce flow resistance, increase the circulating load of oil, can be evenly with each part of engine oil supplying motor, and can be simply and arrange a plurality of oil circuits compactly.The processing that forms a plurality of oil circuits is simplified.
The present invention according to claim 4, the part of camshaft lubrication oil supply passage can utilize the bolt-inserting hole of cylinder easily to form.In addition, by the oil circuit in the lid of camshaft lubrication oil supply passage is located in the sidewall of cylinder head, can be so that the end of camshaft lubrication, and can be simply and be arranged in oil circuit in the lid compactly.In addition, by the oil circuit in the lid of camshaft lubrication oil supply passage being located on the sidewall in the cylinder head and reverse side cam chain, can avoid the interference with cam chain etc., and can form the oil circuit in the lid easily.
The present invention according to claim 5, because machine oil is by the cooling of water mantle on the upstream side of main oil duct, thus can be with each part of the engine oil supplying motor of lower temperature, thus the cooling performance of motor strengthened.
The present invention according to claim 6, because each chain on bent axle concentrates on a side, so the assembling operability of each chain is improved, and because each chain is arranged on the side of motor, so can make oil pocket spatial concentration (intensive).
Description of drawings
Fig. 1 is the left view that the motorcycle that is equivalent to one embodiment of the present of invention is shown;
Fig. 2 is the expansion sectional view that the motor of motorcycle is shown;
Fig. 3 is the expansion sectional view that another cross section of motor is shown;
Fig. 4 is the left view that the right-hand part of engine crankcase is shown;
Fig. 5 is the right elevation that the left side of engine crankcase is shown;
Fig. 6 is the enlarged view that the major component among Fig. 5 is shown;
Fig. 7 is the sectional view of the line A-A intercepting in Fig. 6;
Fig. 8 is the sectional view of the line B-B intercepting in Fig. 6; Fig. 8 (a) illustrates the correct state of installing of leaf valve; Fig. 8 (b) illustrates the state that the leaf valve mistake is installed;
Fig. 9 is the observed view of direction shown in the arrow A from Fig. 5;
Figure 10 is the sectional view of the line A-A intercepting in Fig. 9;
Figure 11 illustrates along the cylinder of the observed motor of cylinder axis;
Figure 12 illustrates along the cylinder head of the observed motor of cylinder axis;
Figure 13 is the sectional view of the line A-A intercepting in Figure 12.
Embodiment
One embodiment of the present of invention are described with reference to the accompanying drawings.If it is do not specialize, in the following description, identical with the direction of indication with regard to vehicle such as the direction of front, rear, left and right one class.Arrow FR among the figure points to the place ahead of vehicle, and arrow LH points to the left side of vehicle, and arrow UP points to the top of vehicle.
Pedal motorcycle 1 shown in Figure 1 is a low pedal vehicle, and wherein the front end in vehicle frame F is provided with head pipe (head pipe) 13, and front fork 11 and the direction handgrip 12 of axle journal connection (journal) front-wheel WF can guide to supporting by head pipe 13.On the downside at the rear portion of vehicle frame F, an integrated oscillating type power unit (hereinafter being called swing bodies) U is set, in the front portion of this swing bodies U the power plant of motor E as motorcycle 1 are set, and, be provided as the axle S of the trailing wheel WR of driving wheel at the rear portion of swing bodies U.
The downside of the front portion of swing bodies U via coupling rod parts 61 by the rear portion of vehicle frame F vertical support swingably.Simultaneously, the rear end of swing bodies U is via the rear portion cushion pad 7 of seat shock absorber, by the back end bearing of vehicle frame F.Swing bodies U can vertically swing with trailing wheel WR, because 61 pivot action of coupling rod parts, and constitute so-called unit oscillating rear suspension.
Vehicle frame F is provided with on the pairing left and right underframe under the underframe 14 and pairing left and right, from the beginning described upward underframe 14 is managed 13 and is extended downwards backward and along the diagonal angle, described down underframe 15 is positioned at the downside of underframe 14, from the beginning manages 13 beginnings in its bending and extending back after the diagonal angle extends downwards.The rear portion of following underframe 15 is the 15a of rear-inclined portion, this rear-inclined portion bending, and extend upward backward and along the diagonal angle, the downside of the rear end of underframe 14 and each 15a of rear-inclined portion connects (bond) on each.
Pairing left and right seat crosspiece 16 tilts backward and along the diagonal angle, and its front end links to the rear portion of underframe 14 on each; And the upper end of each 15a of rear-inclined portion links to the intermediate portion of each seat crosspiece 16.The bearing support 10 that plays the diagonal brace effect is located between the intermediate portion of the rear portion of each seat crosspiece 16 and each 15a of rear-inclined portion.Vehicle frame F mainly is made of head pipe 13, last underframe 14, following underframe 15, seat crosspiece 16 and bearing support 10.
Cover with main body cover 19 around the vehicle frame F.Upside at the rear portion of main body cover 19 is provided with occupant's front and back seat 20, makes to raise this seat.The object case 18 that can place the helmet and other things is arranged on the downside of occupant seat 20 and at the upside of power unit U.
Swing bodies U is linked to be an integral body with the motor E of front portion and the driving mechanism M of left rear side.
Motor E is the OHC single-cylinder engine of water-cooled 4 strokes, the rotational axis C1 of its bent axle 31 arranges along horizontal (width direction of main body), and cylinder part 22 is essentially horizontally given prominence to (being in forward in detail, and acclivitous a little state) from the place ahead of the front end of crankcase 21.Label C2 represents the axis (cylinder axis) of cylinder part 22.
And for example shown in Figure 2, crankcase 21 is divided into left and right sides two halves casing 21a, 21b.The main body 23a of left box body extends back after the left side, rear portion overhangs left at it, and the left half chests body 21a of this main body and crankcase 21 becomes an integral body.The main body 23a of left box body constitutes the transmission case 23 among the driving mechanism M with the left case lid 23b in the left side of the main body that is connected to left box body.Right case lid 21c is connected to the right side of the right half chests body 21b of crankcase 21, and generator 37 is arranged in the right case lid 21c coaxially with bent axle 31.Label B1 represents that the transverse center (position of cylinder axis C2) of crankcase 21 locates perpendicular to horizontal branch boundary plane.
The reducing gear train that driving mechanism M is provided with belt constantly variable transmission 24 and does not illustrate, described transmission device 24 is the driving force of switching engine E continuously, and described reducing gear train lowers the speed of the output of belt constantly variable transmission 24, and this output is output to axle S.Belt constantly variable transmission 24 is along vertical placement of transmission case 23, and reducing gear train is placed on the right side at rear portion of transmission case 23 (inboard on the body width direction).Axle S is outstanding to the right from reducing gear train, and trailing wheel WR is connected to a S.
The skull 33a that the cylinder 32 that cylinder part 22 mainly is connected by the front end with crankcase 21, the cylinder head 33 that is connected with the front end of cylinder 32 are connected with front end with cylinder head 33 constitutes.
But be contained in the cylinder 32 to piston 34 to-and-fro motion.The smaller diameter end 35b of connecting rod 35 couples by wrist pin and piston 34, and the crank pin 31e of the larger diameter end 35a of connecting rod 35 and bent axle 31 couples.The left and right sides axle journal 31a of bent axle 31,31b are by metal bearing (plane bearing) 39a, and 39b is by left and right sides crankshaft bearing 36a, and 36b supports pivotally, and this bearing 36a, 36b be by left right-hand part casing 21a, the left and right sides inwall 41a of 21b, and 41b constitutes.
The rotary motive power of bent axle 31 is passed to a S by driving mechanism M.
In the belt constantly variable transmission 24 of driving mechanism M, vee-belt 103 is on drive pulley 101 and driven pulley 102, and the reduction speed ratio of rotary motive power changes in predetermined scope continuously according to the variation of the rotating speed of bent axle 31.Drive pulley 101 and bent axle 31 are arranged on the front end of transmission case 23 coaxially, and driven pulley 102 is arranged on the back of drive pulley, promptly at the rear portion of transmission case 23.
Engine shaft 31c further extends to the right from the right axle journal 31b on bent axle 31 right sides, and supporting is contained in the external rotor 37a of the motor 37 among the right case lid 21c.External rotor 37a is open to the right cup type, and is arranged among the external rotor 37a by the stator coil 37b of right case lid 21c supporting.
The driving sprocket wheel 51 that is used for drive cam shaft 52 in the cylinder head 33 is arranged on the base side of engine shaft 31c coaxially.Driving sprocket wheel 82 (see figure 3)s that drive oil pump 81 closely are located at the left side of driving sprocket wheel 51.In addition, the starter driven gear 37c that is connected with the starter that does not illustrate is connected by overrunning clutch 37d on the right side of external rotor 37a of generator 37.
In cylinder head 33, camshaft 52 be arranged in parallel (promptly at horizontal direction) with bent axle 31, and both sides are by cylinder head 33 rotatably supports.Driven sprocket 53 is located at the left end of camshaft 52 coaxially, and because cam chain 54 on driven sprocket 53 and be positioned on the driving sprocket wheel 51 on the bent axle 31, so camshaft 52 rotates synchronously with bent axle 31.On the right side of cylinder head 33 and cylinder 32, the cam chain chamber 55 of laying cam chain 54 is set.
Air inlet and exhaust cam 52a, 52b are arranged side by side the horizontal middle part at camshaft 52; And the Rocker arm 5 6a on air inlet side and exhaust side, the input end of 56b is against air inlet and exhaust cam 52a, 52b.When camshaft 52 rotates as mentioned above, each Rocker arm 5 6a, 56b is according to air inlet and exhaust cam 52a, and the cam face of 52b waves, the intake ﹠ exhaust valves work that does not illustrate, and air inlet on the cylinder head 33 and exhaust port opening and closing.Label 38 expression igniter plugs.
Further extend left from left axle journal 31a in the left side of bent axle 31, forms drive belt wheel shaft 31d, and the drive pulley 101 of drive belt wheel shaft 31d supporting belt constantly variable transmission 24, makes drive pulley integrally to rotate.The active semi-wheel 101b that drive pulley 101 is provided with the axial outside that is positioned at the drive belt wheel shaft and is fixed on fixed semi-wheel (pulley half) 101a on the drive belt wheel shaft 31d and is positioned at axial inboard and can moves on drive belt wheel shaft 31d vertically.Vee-belt 103 is taken turns 101a around being formed on two and half, among the V-arrangement formula groove 101c between the 101b.Active semi-wheel 101b is pressed against on the side that active semi-wheel and fixed semi-wheel 101a separate.A plurality of balance rollers (weight roller) 104 are arranged on active semi-wheel 101b inside.
When the rotation of drive pulley 101 stops (when the rotation of bent axle 31 stops), active semi-wheel 101b and fixed semi-wheel 101a separate, and the width of X-shaped groove 101c enlarges, and inwardly move in the position that vee-belt 103 is reeled.When drive pulley 101 rotates (when bent axle 31 rotates), each balance roller 104 is outwards motion under its centrifugal action, active semi-wheel 101b is near fixed semi-wheel 101a, the narrowed width of V-shaped groove 101c, and outwards move in the position that vee-belt 103 is reeled.According to the variation of winding position, vee-belt 103 also changes around the position on the driven pulley 102, and the reduction speed ratio between two belt pulleys 101,102 changes automatically and continuously.
Left side at drive pulley 101 forms cooling fan 107, and when driving motor, this fan rotates with drive pulley 101.Like this, the air inlet port 23e of the air inlet duct 23c of ambient air from the anterior right side that is connected transmission case 23 enters the transmission case 23, forces the transmission device 24 of cooling belt continuous variable etc.In air inlet duct 23c, engine air sucks path and transmission device cooling air passway branch is arranged.
The oil purifier 68 of filter cartridge type is connected to left side (the left half chests body 21a) (see figure 1) of crankcase 21 bottoms.
As shown in Figure 3, oil purifier 68 holds an element in the band cylindricality casing 68a at the end, the opening of casing 68a is by the pressing plate 68b sealing of a plate-like, and this casing is fixed, make the central axis of casing 68a be provided with, and the side of the opening of casing 68a is relative with 71 (the left half chests body 21a) of the left side wall 21d of crankcase 21 along laterally (bent axle axially).
Oil outlet (oil outlet) 68d is formed on pressing plate 68b center, and is arranged on circumferencial direction around it along a plurality of oilers of circumferential arrangement (oil inflow port) 68c.Receive the machine oil of inflow casing 68a from each oiler 68c at oil purifier 68 after, oil passes to the inside of described element from the outside and is filtered.Oil flows out casing 68a from oil outlet 68d.Label 69 expression oil sensors, this oil sensor are used to detect near oily temperature or the oil pressure the oil purifier 68 on the left side wall 21d of crankcase 21.Label 69a represents to regulate the breathing pipe of the internal pressure in the crankcase 21.
In crankcase 21, form an oily outflow pathway 72, it is basically parallel to bent axle 31 (basic parallel with crank axis C1) center (part opposite with the oil outlet 68d of oil purifier 68) (towards inboard transversely) extension to the right from seat 71 in the horizontal.By making the ozzle 72a that is communicated with oily outflow pathway 72 outstanding left from the center of seat 71, screw the screw thread of ozzle 72 outsides and the screw thread of oil outlet 68d inner face, and fastening oil purifier 68 itself, make it around its rotational, oil purifier 68 removably can be connected to seat 71, oily outflow pathway 72 and oil outlet 68d are communicated with.
With relatively form annular oil groove 71a with each oiler 68c of oil purifier 68 on the seat 71.The part of the oil groove 71a exhaust port with oil pump 81 in the horizontal is opposite, and is positioned at the oil circuit 73 of discharging on the side along laterally forming in crankcase 21, makes oil groove 71a be connected by the shortest distance with exhaust port.
Be used to make the oil pump 81 of oil circulation to be arranged in the bottom of right half chests body 21b, make its live axle 83 along horizontal direction.Driven sprocket 84 is located on the live axle 83 of oil pump 81 coaxially, and by on driven sprocket 84 and driving sprocket wheel 82, making oil pump 81 along with bent axle 31 revolutions endless chain 85.
Be used to make engine cooling water circuit water pump 86 to be arranged on the right side, bottom of right half chests body 21b, make its live axle 87 coaxial with the live axle 83 of oil pump 81.The left end of the live axle 87 of water pump 86 cooperates with the right-hand member of the live axle 83 of oil pump 81, makes to relatively rotate, and when driving oil pump 81, equally also drives water pump 86.The cooling water that comes out from water pump 86 is by passing left and right sides half chests body 21a, and the cooling water communication paths 74 of 21b enters the cylinder part 22 from the left side of crankcase 21.Cooling water communication paths 74 is arranged near oily outflow pathway 72.Label 58 expressions are used to couple the coupling that is positioned at described unit one side of the coupling rod parts 61 that is positioned at swing bodies U underside of forward.
The oil circuit 73a that is positioned at the suction side that is communicated with food tray in crankcase 21 bottoms is connected with the suction opening of oil pump 81, and is connected with the exhaust port of oil pump 81 with the oil circuit 73 that is positioned at the discharge side of the oiler connection of oil purifier 68.
When driving oil pump 81, be stored in the machine oil in the food tray, be inhaled into oil pump 81 by the oil circuit 73a that is arranged in the suction side that is formed among the right half chests body 21b, and the oil of discharging from oil pump 81, by passing left and right sides half chests body 21a, the oil circuit 73 that is positioned at the discharge side of 21b flows among the oil groove 71a of seat 71, and directly flows into oil purifier 68 from each oiler 68c by oil groove 71a.
In oil purifier 68 by and the oil that is filtered directly flow into the oily outflow pathway 72 by ozzle 72a from oil outlet.Oil outflow pathway 72 passes left and right sides half chests body 21a, 21b (in detail, making its right-hand member reach right half chests body 21b).The right-hand member of oil outflow pathway 72 is communicated with the lateral middle of main oil duct 76 by the connectivity slot 75 that is recessed to form on the branch boundary plane B1 in right half chests body 21b, this main oil duct 76 is basically parallel to bent axle 31 ground and extends through left and right sides half chests body 21a in the crankcase 21,21b.That is, flow into the oil of oily outflow pathway 72, flow into the lateral middle of main oil duct 76 by connectivity slot 75.Connectivity slot 75 also can form in left half chests body 21a, and also can be at left and right sides half chests body 21a, and 21b forms in the two simultaneously.
As shown in Figure 6, at left and right sides half chests body 21a, the branch boundary plane B1 of 21b goes up main oil duct 76, oily outflow pathway 72 and connectivity slot 75 relative a plurality of parts places the single lip ring 78 that integrally surrounds periphery is set.That is, Sealing 78 centers on the periphery that divides the connected part that comprises main oil duct 76, oily outflow pathway 72 and connectivity slot 75 on the boundary plane B1 along periphery, as left and right sides half chests body 21a, and the timing of 21b integral installation, connected part can be easy and sealed reliably.
And for example shown in Figure 7, main oil duct 76 and oily outflow pathway 72 part that is separated on minute boundary plane B1 is passed through each sleeve pipe 76c, and 72c connects.The part of the periphery of the above-mentioned connected part in the left half chests body 21a is the counterbore recessed portion.Sealing 78 is packed in the groove that periphery by this recessed portion and each sleeve pipe forms, thus the formation connected part.Along this connectivity slot longitudinally wall 75a on the width direction of connectivity slot 75 in two side-prominent, Sealing 78 is coupled to the groove that is formed by each wall 75a and recessed portion, thereby forms connected part.Simultaneously, the periphery of the connected part in right half chests body 21b has and does not have rough smooth seal face.Separate section on the branch boundary plane B1 that discharges the oil circuit on the side 73, cooling water communication paths 74 and off-load path 77 pass through each sleeve pipe 73c, 74c1, and 77c connects, and by each Sealing (the O shape circle) 73d that is located on each sleeve pipe (seeing Fig. 3,5,6) periphery, 74d1, the 77d sealing.
As shown in Figure 3, left and right sides bearing 42a, the lubricant oil supply passage among the 42b is connected with the two ends, the left and right sides of main oil duct 76, and described left and right sides bearing 42a, 42b are formed on left and right sides half chests body 21a, form left and right sides crankshaft bearing 36a among the 21b, and the left and right sides inwall 41a of 36b is among the 41b.Lubricant oil supply passage 42a in the bearing of the left and right sides, 42b and bent axle 31 (crank axis C1) substantially vertically extend, and with left and right sides crankshaft bearing 36a, the lubricant oil in the 36b is supplied with groove 43a, 43b is communicated with.Like this, the machine oil that flows in the main oil duct 76 is supplied to left and right sides metal bearing 39a, the slidingsurface of 39b.
The left end of main oil duct 76 extends on the left side of left inwall 41a (left crankshaft bearing 36a), and the Detecting element of oil sensor 69 is relative with this left end.Simultaneously, the oil circuit 44 that is positioned at generator one side that extends in parallel with bent axle 31 basically is connected to the right-hand member of the main oil duct 76 on the right side that is positioned at right inwall 41b (right crank slot bearing 36b).Oil circuit 44 on the motor be formed on right case lid 21c on lid 45 in oil circuit be communicated with.
In the oil circuit of lid in 45, suitably form and the relative pouring orifice 45a of generator 37 in the right case lid 21c.Like this, the part oil in the main oil duct 76 is by the oil circuit supply generator 37 in oil circuit on the motor 44 and the lid 45.Hereinafter, the oil circuit in the lid 45 can be described as the lubricant oil supply passage 46 of generator.
Between right half chests body 21b and the right case lid 21c perpendicular to horizontal branch boundary plane (cooperation plane) on, the oil circuit 44 of motor one side is connected by sleeve pipe 44c with the separate section that covers the oil circuit in 45, and by being located at Sealing (O shape circle) the 44d sealing on this sleeve pipe periphery.Divide the separate section of the cooling water communication paths 74 on the boundary plane to connect by sleeve pipe 74c2, and by being located at Sealing (O shape circle) the 74d2 sealing on this sleeve pipe periphery.
Oil circuit 79 (see figure 5)s that are positioned at cylinder one side of a part of oil that is supplied to left crankshaft bearing 36a by forming on left half chests body 21a etc. are supplied with the valve system of (in valve pocket) in the cylinder head 33.Oil in the cylinder head 33 is back to the food tray of the bottom of crankcase 21 by being positioned at the cam chain chamber 55 on cylinder part 22 right sides.The interior oil of the inside of crankcase 21 and transmission case 23 separates hermetically, does not have oil to be supplied to belt constantly variable transmission 24.Label 39c represents to be arranged in abutting connection with the axial outside of left crankshaft bearing 36a and the oil sealing of oil seal ground left crankshaft bearing 36a of sealing and left axle journal 31a.
Simultaneously, supply with the part oil of right crankshaft bearing 36b, the oilhole 47a of right axle journal 31b by radially penetrating bent axle 31, radially penetrate the oilhole 47a of crank pin 31e and be connected each oilhole 47a along the diagonal angle, the oilhole 47c of 47b, the slidingsurface of the metal bearing in the larger diameter end 35a of supply connecting rod 35.
That is, form mainly by each oilhole 47a, 47b, the connecting rod lubrication oil supply passage 48 that 47c forms is used for machine oil around right crankshaft bearing 36b supply connecting rod 35.On the internal surface of the periphery of right axle journal 31b and right metal bearing 39b, form the circular groove that makes oil flow respectively.Supply with the part oil of the larger diameter end 35a of connecting rod 35,, supply with slidingsurface and other element of the metallic brush in the smaller diameter end 35a by the inside of connecting rod 35.
As shown in Figure 4, oil pump 81 is arranged on the front end of the diagonal downside of the bent axle 31 (crank axis C1) among the right half chests body 21b.Basically parallel with bent axle 31 and cross left and right sides half chests body 21a, the off-load path 77 of 21b is arranged on the left side of the off-load mouth of oil pump 81.
As shown in Figure 5, on the left side wall 21d of left half chests body 21a, seat 71 (oil purifiers 68) are arranged on the place ahead of the diagonal downside of bent axle 31.The oily outflow pathway 72 that is communicated with the oil groove 71a of seat 71 is arranged on the left side of the exhaust port of oil pump 81.
Discharge oil circuit 73, oily outflow pathway 72, off-load path 77, the main oil duct 76 on the side and cross left and right sides half chests body 21a, the cooling water communication paths 74 of 21b is arranged in the place ahead of the diagonal downside of bent axle 31 thick and fast in crankcase 21.The whole lip ring 78 that surrounds the periphery of above-mentioned part is set on main oil duct 76, oily outflow pathway 72 and connectivity slot 75, and half part of each of described part is at left and right sides half chests body 21a, (see figure 5) relatively on the branch boundary plane of 21b.
Shown in Fig. 6 and 8 (a), in left half chests body 21a, leaf valve 91 is set at the rear of the diagonal downside of bent axle 31, its separation is provided with the printing ink P in the bottom of the space K (crank is provided with the space) of the bent axle 31 in the crankcase 21 and crankcase 21.Leaf valve 91 is substantially horizontal plate, and the Sealing 94 that the center has the elastic plate 93 of the frame plate 92 of square intercommunicating pore 92a, lower surface that a side is fixed to frame plate 92 and covers the periphery of this frame plate 92 forms whole.
The elastic plate 93 of rectangle is bigger than intercommunicating pore 92a, and the short side part of its front end utilizes pair of screws 95 to be fixed on the frame plate 92.When application of load not and when the time from the downside application of load, elastic plate 93 sealing intercommunicating pore 92a, and when from the upside application of load,, open intercommunicating pore 92a by offseting downward.Like this, according to the to-and-fro motion of piston 34, the internal pressure that makes crank that space K is set changes, and can suitably open and close leaf valve 91, and friction reduces, and crank is provided with capable of circulation the entering among the food tray P of machine oil among the K of space.That is, when because motor E work when making the crank of sealing that pressure change among the K of space is set, the switching of leaf valve 91 intermittent type ground, the oil that makes crank be provided with among the K of space flows downward, and promptly flows among the food tray P.
In plan view, take the shape of the letter U and be located at the food tray P and the crank that separate among the left half chests body 21a parting on the left side on the 96a of next door of space K is set at the open otch 97 of minute boundary plane B1 one side.Open cross section is a U-shaped in the otch 91 in the interior week of otch 97, and remains in this otch under air-proof condition at the leaf valve 91 that is provided with Sealing 94 on its periphery.One side of leaf valve 91 is relative with branch boundary plane B1, and the side that parts next door 96b on the right side of right half chests body 21b abuts against under air-proof condition on the above-mentioned side.
Leaf valve 91 is essentially rectangle in plan view, and the across corner on depth direction one side of otch 97 is relative with the across corner on dividing boundary plane B1, and chamfering becomes the bigger circular arc of radius.Each bight on otch 97 depth directions one side of being positioned at as for leaf valve 91, the back vertex angle part chamfering relative with front end corner part becomes the bigger circular arc of radius, therefore, can prevent from when being fixed on flat leaf valve 91 on the crankcase 21, to take place such as assembling along the mistake of the opposite way round connection leaf valve 91 1 classes.
The vertical width (height of each screw 95) that is fixed to the part of elastic plate 93 on leaf valve 91 rear sides is set as bigger than the vertical width in the U-shaped part in the interior week of otch 97, and the degree of depth of the U-shaped of otch 97 rear sides part is set as bigger than the degree of depth of the part of the U-shaped on otch 97 front sides.Like this, even shown in Fig. 8 (b), the assembly direction mistake of leaf valve 91 in otch 97, each screw 95 is interfered in interior week with otch 97 rear sides, and leaf valve can not be packed in the otch, thereby can prevent the mistake assembling of leaf valve 91.
As mentioned above, the oil channel structures suitable with the foregoing description is based on following motor E oil channel structures, wherein, the crankcase 21 of supporting crankshaft 31 crank axially on be separated, and be provided with oily outflow pathway 72 and the main oil duct 76 of the branch boundary plane B1 that crosses crankcase 21 respectively, this oil outflow pathway 72 is parallel with bent axle 31 basically with main oil duct 76, go up at the branch boundary plane B1 of at least one main body of separating (left half chests body 21a) of bent axle chest and to form the connectivity slot 75 that connects oily outflow pathway 72 and main oil duct 76, and be oily outflow pathway, oily outflow pathway 72 is integrally surrounded in main oil duct and connectivity slot setting, the lip ring 78 of the periphery of main oil duct 76 and connectivity slot 75, described oily outflow pathway, half part of each of main oil duct and connectivity slot on minute boundary plane B1 toward each other.
According to this structure, by utilize lip ring 78 with outflow pathway 72 and main oil duct 76 with connectivity slot 75 integral sealings, when separate section on minute boundary plane B1 of sealing oil outflow pathway 72 and main oil duct 76, the man-hour and the cost of assembling can be reduced, and oily outflow pathway 72 and the sealability of main oil duct 76 on minute boundary plane can be guaranteed.In addition, because only need on the branch boundary plane B1 of crankcase 21, to form connectivity slot 75, oily outflow pathway 72 and main oil duct 76 are communicated with, therefore oil channel structures is simple, the degrees of freedom of arranging each oil circuit can increase, can avoid size of engine to increase, and can reduce the man-hour of processing communication paths.
In addition, in this oil channel structures, the oil purifier 68 of filter cartridge type is connected to crankcase 21 1 sides, oily outflow pathway 72 is communicated with the oil outlet 68d of oil purifier 68, each crankshaft bearing 36a of main oil duct 76 and crankcase 21, and 36b is communicated with.
According to this structure, when the exhaust port of the oiler 68c of oil purifier 68 and oil pump 81 is oppositely arranged, the oil outlet 72 that is communicated with the oil outlet 68d of oil purifier 68 and with each crankshaft bearing 36a, the main oil duct 76 that 36b is communicated with can divide and is arranged.Yet, in this case, because oily outflow pathway 72 and main oil duct 76 can easily be communicated with, thus can form effective oil channel structures, and can improve the degrees of freedom of each oil circuit layout.
As shown in Figures 9 and 10, on the downside of the front end of left half chests body 21a, be provided with the part of cooling water inlet 112 as the water jacket in the cylinder 32 111 (seeing Figure 11).The left end of cooling water communication paths 74 is connected with cooling water inlet 112, and the cooling water inlet is opened to cylinder fitting plane (plane of the pedestal of assembly cylinder 32) T1 in left half chests body 21a.Cooling water sucks in the water jacket 111 that surrounds the cylinder barrel periphery in open-top (open deck) the formula cylinder 32 by cooling water inlet 112.
Because cooling water inlet 112 extends back, make the cooling water inlet near the oil circuit 73 and the oily outflow pathway 72 that lay respectively at the waste side of back, cooling water inlet, and be provided with the extension 112a that between oil circuit 73 of discharging side and oily outflow pathway 72, extends, so the cooling of circuit machine oil in crankcase 21 is improved.Cooling water in the water jacket 111 of cylinder 32 is after the Transverse plane of cylinder 32 (plane of the pedestal of cylinder head 33 is installed) T2 enters the water jacket of cylinder head 33, cooling water is got back to water pump 86 from the coolant outlet 113 (seeing Figure 12) of the upper right of cylinder head 33 by the radiator that does not illustrate.
Shown in Figure 11 and 12, on the upside of cylinder 32 and downside, bolt-inserting hole 114 is set respectively on the left and right sides, be used to insert the lag bolt that does not illustrate that stretches out forward from crankcase 21 along cylinder axis C2.Equally, on the upside of cylinder head 33 and downside, on the left and right sides, be provided with and each bolt-inserting hole 114 corresponding bolts patchhole 115 respectively.By stud bolt (stud bolt) is inserted in each bolt-inserting hole 114,115, from valve pocket one side with nut screwing clamping on each bolt, can integrally cylinder 32 and cylinder head 33 be fixed on the crankcase 21.
And for example shown in Figure 13, the oil circuit 79 of cylinder one side is open in the upper left side of cylinder fitting plane T1 among the left half chests body 21a.Simultaneously, form the connectivity slot 116 that is positioned at pedestal one side on the base plane of cylinder 32, this connectivity slot 116 makes the bolt-inserting hole 114 of upper left side be communicated with the oil circuit 79 of cylinder one side.
In cylinder head 33, on the upper left side of left side wall 33b near bolt-inserting hole 115, form vertical oil circuit 117, this oil circuit in lid along cylinder axis C2 from cylinder head 33 base extension to the height of the axis C3 of camshaft 52; And the left camshaft bearing 121 from the end of the vertical oil circuit 117 head to the left end that supports camshaft 52 forms inclination oil circuits 118, this oil circuit when cylinder axis is observed with respect to axis C3 inclination, and straight-line extension.Because the inclination oil circuit 118 in vertical oil circuit 117 in the lid and the lid is positioned at the left side of cylinder head 33, promptly be positioned on the side opposite, so its layout is not subjected to the influence of cam chain 54 and driven sprocket 53 with cam chain 54.
On the Transverse plane T2 of cylinder 32, the side in the end forms a connectivity slot 119, and it is communicated with the bolt-inserting hole 114 of upper left side and vertical oil circuit 117 of a side of lid.Therefore, a part of oil of supplying with left crankshaft bearing 36a is by entering in the left camshaft bearing 121 at the connectivity slot 119 of the connectivity slot 116 of the oil circuit 79 of cylinder one side, pedestal one side, bolt-inserting hole 114, end one side, vertical oil circuit 117 in the lid and the inclination oil circuit 118 in the lid, after this part oil entered its inner space from the left end of camshaft 52, this part oil was by inner space suitably each sliding parts and the other parts of supply valve system (valve train).
That is to say that the bolt-inserting hole 114 of the upper left side of cylinder 32 plays the effect with vertical oil circuit 114a of engine oil supplying valve system in cylinder.Be used for the camshaft lubrication oil supply passage 120 main oil circuits 79 by cylinder one side of (valve system) around the engine oil supplying camshaft 52, vertical oil circuit 114a (bolt-inserting hole 114) of cylinder, vertical oil circuit 117 and the inclination oil circuit in the lid 118 the lid being constituted (see figure 2)s from left crankshaft bearing 36a.
As mentioned above, the above-mentioned oil channel structures that is equivalent to embodiment is based on the oil channel structures of following motor E, wherein this motor E be provided with supporting crankshaft 31 crankcase 21, from the outstanding cylinder 32 of crankcase 21, be connected to cylinder 32 ends cylinder head 33, cover crankcase 21 a side right case lid 21c and be arranged on generator 37 in the crankcase 21.In addition, the described oil channel structures that is equivalent to embodiment is provided with camshaft lubrication oil supply passage 120, connecting rod lubrication oil supply passage 48, engine lubricating oil supply passage 46 and main oil duct 76, wherein, described camshaft lubrication oil supply passage 120 from left crankshaft bearing 36a by cylinder 32 and cylinder head 33 with around the engine oil supplying camshaft 52, described connecting rod lubrication oil supply passage 48 passes through bent axle 31 with around the engine oil supplying connecting rod 35 from right crankshaft bearing 36b, described engine lubricating oil supply passage 46 passes through right case lid 21c with engine oil supplying motor 37, and described main oil duct 76 along the axial direction of bent axle at each crankshaft bearing 36a, further extend on the outside of 36b.Main oil duct 76 branches into the lubricant oil supply passage 42a that is arranged in left bearing handle and camshaft lubrication oil supply passage 120 and is communicated with, be arranged in the lubricant oil supply passage 42b that the right bearing handle is communicated with the oily supply passage 48 of connecting rod lubrication and be positioned at the oil circuit 44 that motor one side handle is communicated with engine lubricating oil supply passage 46.
According to above-mentioned structure, because in the left bearing oil supplied with in lubricant oil supply passage 42a around the camshaft 52, the right bearing on the lubricant oil supply passage 42b that oil supplied with around the connecting rod 35 and motor one side oil circuit 44 of oily supply engine is directly come out from main oil duct 76 branches, so can reduce the coiling of oil circuit, reduce flow resistance, increase the circulating load of oil, machine oil is each part of supply engine evenly, and can be simply and arrange a plurality of oil circuits compactly.In addition, can simplify the processing of a plurality of oil circuits.
In addition, for oil channel structures, cylinder 32 is provided with cylinder 32 and cylinder head 33 is fixed on the bolt-inserting hole that is used for stud bolt 114 on the crankcase 21, camshaft lubrication oil supply passage 120 from cam chain 54 opposite sides on left crankshaft bearing 36a is communicated with cylinder head 33 by bolt-inserting hole 114, and machine oil by provide respectively in the cylinder head 33 be arranged in cam chain 54 opposite sides on left side wall 33b on vertical oil circuit 117 of lid and the inclination oil circuit 118 supply camshafts 52 that cover around.
According to said structure, the part of camshaft lubrication oil supply passage 120 can easily utilize the bolt-inserting hole 114 of cylinder 32 to form.In addition, by vertical oil circuit 117 in the lid and the inclination oil circuit 118 in the lid are provided respectively in the camshaft lubrication on the left side wall 33b of the cylinder head 33 oil supply passage 120, can realize lubricated to camshaft 52 ends easily, and the inclination oil circuit 118 in vertical oil circuit in the lid 117 and the lid can be arranged simply and compactly.In addition, by in cylinder head 33, with cam chain 54 opposite sides on left side wall 33b on camshaft lubrication oil supply passage 120 in, vertical oil circuit 117 in the lid and the inclination oil circuit 118 in the lid are provided respectively, the interference with cam chain 54 grades can be avoided, and vertical oil circuit 117 in the lid and the inclination oil circuit 118 in the lid can be easily formed.
In addition, in above-mentioned oil channel structures, when cooling water communication paths 74 cooling machine oils that utilize in the upstream of main oil duct 76, because the oily outflow pathway 72 that is communicated with the upstream of main oil duct 76 is near cooling water communication paths 74, so can be, thereby can strengthen the cooling performance of motor with each part of the engine oil supplying motor of lower temperature.
In addition, in oil channel structures, because cam chain 54 and oil pump chain 85 are located between the right crankshaft bearing 36b and motor 37 of a side of motor 37, so each chain 54,85 on bent axle 31 concentrates on the side, each chain 54,85 assembling operability is improved, and, can make the oil pocket spatial concentration by each chain 54,85 is located on the side of motor 37.
The invention is not restricted to the embodiments described, for example, can be applied to unit oscillating motor in addition, as multicylinder engine or DOHC motor; Say nothing of, the present invention also can be applicable on the motorcycle and three-wheel or four-wheel wagon except scooter.In the scope that does not depart from the object of the invention, can make various changes.
1-motorcycle (saddle riding type vehicle)
The 21-crankcase
Left half casing (main body of separating) of 21a-
Right half casing of 21b-
The right case lid of 21c-(crankcase cover)
The 31-bent axle
The 32-cylinder
The 33-cylinder cover
33b-left side wall (sidewall)
The 35-connecting rod
The left bearing of the crank pin of 36a-(bearing of the crank pin)
The right bearing of the crank pin of 36b-(another bearing of the crank pin, the bearing of the crank pin on engine one side)
The 37-generator
Lubricating oil supply passageway in the 42a-left bearing (first oil circuit)
Lubricant oil supply passage in the 42b-right bearing (second oil circuit)
Oil circuit on 44-generator one side (the 3rd oil circuit)
46-generator lubricant oil supply passage
48-connecting rod lubrication oil supply passage
The 52-camshaft
The 54-cam chain
The 68-oil purifier
72-oil outflow pathway (first oil circuit)
74-cooling water communication paths (water jacket)
The 75-connectivity slot
76-master's oil duct (second oil circuit)
The 78-Sealing
85-chain (oil pump chain)
The 114-bolt-inserting hole
Vertical oil circuit (oil circuit in the lid) in the 117-lid
Inclination oil circuit (oil circuit in the lid) in the 118-lid
120-camshaft lubrication oil supply passage
The E-motor
B1-divides boundary plane

Claims (6)

1. the oil channel structures of a motor (E), wherein, the crankcase (21) of supporting crankshaft (31) crank axially on be separated, this oil channel structures comprises:
First and second oil circuits (72,76) that the branch boundary plane (B1) that passes described crankcase (21) extends in parallel with described bent axle (31) basically;
The connectivity slot (75) that connects each oil circuit, this connectivity slot (75) are formed on the branch boundary plane (B1) of at least one main body of separating (21a) of described crankcase (21);
Integrally center on the lip ring (78) of the periphery of described oil circuit and connectivity slot (75), for described lip ring (78) being set at its each half part oil circuit respect to one another of a minute boundary plane (B1) and connectivity slot (75).
2. oil channel structures as claimed in claim 1, wherein, a filter cartridge type oil purifier (68) is connected to a side of described crankcase (21);
Described first oil circuit (72) is communicated with the oil outlet (68d) of described oil purifier (68); And
(36a 36b) is communicated with the crankshaft bearing of described second oil circuit (76) and described crankcase (21).
3. oil channel structures as claimed in claim 1 or 2 wherein, also comprises: from the outstanding cylinder (32) of described crankcase (21); Be connected to the cylinder head (33) of the end of described cylinder (32); Cover the crankcase cover (21c) of a side of described crankcase (21); With the generator (37) that is arranged in the described crankcase (21), this oil channel structures also comprises:
From a crankshaft bearing (36a) by described cylinder (32) and cylinder head (33) with the oily supply passage (120) of the camshaft lubrication around the engine oil supplying camshaft (52);
Pass through described bent axle (31) with the oil of the connecting rod lubrication around the engine oil supplying connecting rod (35) supply passage (48) from another crankshaft bearing (36b);
By the generator lubricant oil supply passage (46) of described crankcase cover (21c) with the described generator of engine oil supplying (37); With
Along described bent axle (31) axially each crankshaft bearing (36a, the main oil duct (76) that further extends on outside 36b),
Wherein, described main oil duct (76) branches into first oil circuit (42a) that is communicated with described camshaft lubrication oil supply passage (120), second oil circuit (42b) that is communicated with described connecting rod lubrication oil supply passage (48) and the 3rd oil circuit (44) that is communicated with described generator lubricant oil supply passage (46).
4. oil channel structures as claimed in claim 3, wherein,
Described cylinder (32) is provided with the bolt-inserting hole (114) that is used for described cylinder (32) and cylinder head (33) are fastened to the stud bolt of described crankcase (21);
Described camshaft lubrication oil supply passage (120) is communicated with described cylinder head (33) from the crankshaft bearing that is positioned on the opposite side with cam chain (54) by described bolt-inserting hole (114); And
Machine oil by be arranged in the described cylinder head (33) oil circuit (117,118) in the lid on the sidewall (33b) on the opposite side with described cam chain (54) be supplied to described camshaft (52) around.
5. as claim 3 or 4 described oil channel structures, wherein, the oil circuit (72) that is communicated with the upstream side of described main oil duct (76) is provided with near water jacket (74).
6. as claim 4 or 5 described oil channel structures, wherein, a described cam chain (54) and an oil pump chain (85) are arranged between the crankshaft bearing (36b) and described generator (37) on described generator (37) one sides.
CN2007101617865A 2006-09-29 2007-09-26 Oil passage structure Expired - Fee Related CN101153551B (en)

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JP2006267118A JP2008088822A (en) 2006-09-29 2006-09-29 Oil passage structure
JP2006267116A JP2008088821A (en) 2006-09-29 2006-09-29 Oil passage structure
JP267118/06 2006-09-29

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