CN104702047B - Internal combustion engine generator cooling structure - Google Patents

Internal combustion engine generator cooling structure Download PDF

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Publication number
CN104702047B
CN104702047B CN201410743299.XA CN201410743299A CN104702047B CN 104702047 B CN104702047 B CN 104702047B CN 201410743299 A CN201410743299 A CN 201410743299A CN 104702047 B CN104702047 B CN 104702047B
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China
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lubricating oil
generator
internal combustion
combustion engine
tubular support
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CN201410743299.XA
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CN104702047A (en
Inventor
山西辉英
渡边觉
高桥仁
高桥一仁
小笠原诚
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides an internal combustion engine generator cooling structure capable of discharging lubrication oil in the generator and reducing energy loss caused by lubrication oil resistance in the generator; the internal combustion engine generator cooling structure comprises a generator shield having a cylinder support portion, a generator stator supported by the cylinder support portion, and a cup-shape rotor driven by driving force of the internal combustion engine; the upper portion of the cylinder support portion is provided with a lubrication oil guide path used for guiding the lubricating oil into the cylinder support portion; the cylinder support portion is provided with a lubrication oil discharge path arranged in a position far away from the lubrication oil guide path and used for discharging the lubrication oil from the cylinder support portion; an opening of the lubrication oil discharge path is arranged in a side face of the cylinder support portion, and arranged lower than a position of an opening of the lubrication oil guide path.

Description

The generator cooling structure of internal combustion engine
Technical field
The present invention relates to a kind of generator cooling structure, it is cooled down using lubricating oil to the generator of internal combustion engine.
Background technology
Internal combustion engine possesses the generator for supplying the required electric energy such as the charging of battery.Such usual structure of generator Turn into, generator cover is installed on the outside of the crankcase of internal combustion engine and Dynamo Room is constituted, prominent to the Dynamo Room One end of bent axle, is fixed with the rotor for being formed as cup-shaped and permanent magnet being provided with the inside of its barrel, with the rotor The stator with coil of interior relative configuration is fixed on generator cover.Such generator operationally generates heat, and due to hair Motor is sealing, it is difficult to heat is discharged from inside, therefore using utilizing profit by the way that lubricating oil is directed into generator Lubricating oil carrys out the cooling means of cooled electric generator.
For example, Patent Document 1 discloses the generator cooling structure using lubricating oil.In the cooling knot of the generator In structure, stator is supported with the central cylinder portion of generator cover, and otch or opening portion is formed on the top in central cylinder portion, The oily guide portion that lubricating oil is directed to these otch or opening portion is formed with generator cover, and is formed with generator cover The spray-hole of lubricating oil is sprayed to stator, generator is will attach to by using the otch or opening portion that are formed in central cylinder portion The lubricating oil that cover is flowed down is directed to generator, or the lubricating oil sprayed from jet is directly sprayed to generator, from And generator is cooled down.
In such generator cooling structure, substantial amounts of lubricating oil is directed in generator to carry cooling effect Height, but it is held in the lubricating oil in generator and is difficult to be discharged to outside generator, and the resistance of substantial amounts of lubricating oil causes generator Energy loss increase during generating.
Patent document 1:No. 4647420 publications of Japanese Patent Publication No.
The content of the invention
The present invention be in view of such technical problem and make, it is intended that lubricating oil is drawn with simple structure Lead in generator and improve cooling effect, and discharged by the lubricating oil more than regulation that makes to be stored in generator, make Energy loss reduction caused by the resistance of lubricating oil during electrical power generators.
The present invention solves above-mentioned technical task, the generator cooling structure of the internal combustion engine of the invention described in technical scheme 1, It possesses:Generator cover, it is formed as concavity, is fixed on the outside of crankcase and is internally formed Dynamo Room concave, and And it is provided with the tubular support from concave inwall inwardly projecting;The stator of generator, it is supported on the tubular support; Rotor, it is formed as cup-shaped, opposed with the stator with being set to, and is rotated by the drive force of internal combustion engine, the internal combustion engine Generator cooling structure be characterised by, on the top of the tubular support, be formed with the connection tubular support The internal lubricating oil with inside outside and that lubricating oil is imported the tubular support imports oil circuit, in tubular supporting Portion is formed with lubricating oil discharge oil circuit, the inside and outside of tubular support described in the lubricating oil discharge oil communication, sets The position of oil circuit is imported the lubricating oil is left, and lubricating oil is discharged from the inside of the tubular support, the profit In the side of the tubular support, the opening portion for importing oil circuit than the lubricating oil is more located at for the opening portion of lubricating oil discharge oil circuit Lower section.
Invention described in technical scheme 2 on the basis of the generator cooling structure of the internal combustion engine described in technical scheme 1, its It is characterised by, the auxiliary equipment that the top that the generator cover possesses the opening portion for importing oil circuit to the lubricating oil expands is received Portion, the lubricating oil for importing the inside of the tubular support is auxiliary from what is be made up of the auxiliary equipment incorporating section and the crankcase Equipment accommodation space is helped to import.
Invention described in technical scheme 3 on the basis of the generator cooling structure of the internal combustion engine described in technical scheme 2, its It is characterised by, is equipped with the auxiliary equipment accommodation space for making the starter motor of engine starting and by the starting horse The power for reaching is delivered to the power transmitting gear of bent axle, and the lubricating oil for importing the inside of the tubular support is to use from described The lubricating oil that starter motor and the power transmitting gear disperse.
Invention described in technical scheme 4 on the basis of the generator cooling structure of the internal combustion engine described in technical scheme 3, its It is characterised by, is provided with the lubricating oil dispersed in auxiliary equipment accommodation space guiding in the auxiliary equipment accommodation space The guide plate of the opening portion of oil circuit is imported to the lubricating oil, the bottom of the guide plate is disposed of positioned at the opening portion Top near.
Invention described in technical scheme 5 on the basis of the generator cooling structure of the internal combustion engine described in technical scheme 4, its It is characterised by, the guide plate is to cover the packing ring extended to from the stator positioned at the top of the auxiliary equipment accommodation space Distribution cap assembly, the guide plate is formed as importing oil circuit towards the lubricating oil from the installation portion of the guide plate to be opened Oral area is inclined.
The generator cooling structure of the internal combustion engine according to technical scheme 1, on the top of tubular support, the company of being formed with The inside of logical tubular support imports oil circuit with the lubricating oil of inside outside and by lubricating oil importing tubular support, and It is formed with tubular support and is located off the position of lubricating oil importing oil circuit and the inside of connection tubular support and outside And the lubricating oil discharge oil circuit of removal of lubricant, lubricating oil discharges the opening portion of oil circuit in the side of tubular support, than lubrication The opening portion that oil imports oil circuit is more located at lower section, so if importing stream by the lubricating oil of tubular support from Dynamo Room The amount of lubricating oil for flowing into generator via the inside of tubular support reaches more than ormal weight, then can by lubricating oil from Generator passes through the opening portion of the lubricating oil discharge oil circuit of the position for being formed in lower than the opening portion that lubricating oil imports oil circuit Discharge, the cooling performance of generator is ensured therefore, it is possible to lubricating oil is directed into generator with simple structure, and Lubricant drag institute when can make to be held in the lubricating oil more than ormal weight of generator discharge and make electrical power generators The friction loss reduction for bringing, can make the energy loss of drive device reduces.
The generator cooling structure of the internal combustion engine according to technical scheme 2, because generator cover possesses towards lubricating oil The auxiliary equipment accommodation space that the top of the opening portion of oil circuit expands is imported, so being captured in delay of being dispersed in the space of expansion Lubricating oil and more lubricating oil can be collected, therefore, it is possible to substantial amounts of lubricating oil is directed in generator, it is not necessary in order to The a plurality of lubricant passage way for guiding lubricating oil is cooled down and set, can reduce manufacturing cost.Even if in addition, by substantial amounts of lubricating oil It is directed in generator, it is also possible to by the discharge of remaining lubricating oil, maintain the optimised quantity for oil cooled lubricating oil, make internal combustion The energy loss of machine is further reduced, and more effectively cooled electric generator.
The generator cooling structure of the internal combustion engine according to technical scheme 3, is equipped in auxiliary equipment accommodation space For making the starter motor of engine starting and the power that the power of starter motor passes to bent axle being transmitted into reduction gearing, therefore Starter motor and power transmission reduction gearing and the lubrication discharged, dispersed in the expansion space of generator cover can be fed into Oil is effectively directed to generator from tubular support, being capable of effectively cooled electric generator.And, in internal combustion engine operation In, dispersing for the lubricating oil that the gear of starting system causes being prevented, more lubricating oil can be directed in generator.
The generator cooling structure of the internal combustion engine according to technical scheme 4, being provided with will fly in auxiliary equipment accommodation space Scattered lubricating oil is directed to the guide plate of inlet opening part, and the importing for being set to be located at tubular support is matched somebody with somebody in the bottom of the guide plate Near the top of opening portion, therefore, it is possible to be efficiently collected in the lubricating oil dispersed in auxiliary equipment accommodation space, along guide plate 98, the inlet opening part of tubular support is effectively directed to, therefore, it is possible to substantial amounts of lubricating oil is transported into generator, The effect for cooling down generator further increases.
The generator cooling structure of the internal combustion engine according to technical scheme 5, guide plate is using covering from stator to being located at The cap assembly of the distribution that the packing ring on the top of auxiliary equipment accommodation space extends, installation portion direction profit of the cap assembly from guide plate The opening portion that lubricating oil imports oil circuit is arranged obliquely, therefore need not increase the increase that number of components is just prevented from manufacturing cost, Effectively lubricating oil is imported in generator and cooling effect is improved.
Brief description of the drawings
Fig. 1 is the saddle riding type machine for representing the internal combustion engine for being equipped with the generator cooling structure for possessing an embodiment of the present invention The overall left side view of dynamic cart.
Fig. 2 is the left side view of the internal combustion engine for possessing generator cooling structure of the invention.
Fig. 3 is the skeleton diagram of the left surface of internal combustion engine.
Fig. 4 is the IV-IV profile stretch-out views of Fig. 3.
Fig. 5 is the V-V profile stretch-out views of Fig. 3.
Fig. 6 is the VI-VI profile stretch-out views of Fig. 3.
Fig. 7 is the VII-VII profile stretch-out views of Fig. 3.
Fig. 8 is the right side view seen from the crankshaft side of generator cover.
Fig. 9 is the partial enlarged drawing in the arrow IX directions of Fig. 8.
Figure 10 is the partial enlarged drawing of the arrow X-direction of Fig. 8.
Figure 11 is the figure that guide plate is loaded in generator cover.
Figure 12 is the figure of the stator that guide plate and generator are installed in generator cover.
Figure 13 is the plan of guide plate.
Figure 14 is the XIV direction views of Figure 13.
Figure 15 is the XV-XV profiles of Figure 14.
Figure 16 is the partial enlarged drawing of the tubular support installation stator in generator cover.
Description of reference numerals
1 ... saddle riding type is two-wheeled,
20 ... internal combustion engines,
22 ... crankcases,
23 ... casees covers,
31 ... bent axles,
33 ... cylinder bodies,
34 cylinder caps,
35 ... cylinder head covers,
50 ... oil pumps,
60 ... starter motors,
61 ... start and deceleration gears,
62 ... reduction gear shafts,
63 ... start driven gear,
80 ... Dynamo Rooms,
81 ... generators,
82 ... rotors,
83 ... stators,
88 ... auxiliary equipment accommodation spaces,
90 ... generator covers,
91 ... bowl-shaped parts,
91a ... bottom surfaces,
The radial ribs of 91b ...,
91c ... lubricating oil guiding ribs,
91d ... guide plate guiding ribs,
92 ... auxiliary equipment incorporating sections,
92a ... bottoms,
22d, 92b ... reduction gearing e axle supporting are raised,
92c ... impulse generators install raised,
92d ... guide plates install raised,
92f ... convex portions,
93 ... balance weight cover portions,
94 ... outside wall portions,
95 ... tubular supports,
95a ... cylindrical portions,
95d ... imports notch,
95e ... discharges notch,
95f ... lubricating oil imports oil circuit,
95f1... opening portion,
95g ... lubricating oil discharges oil circuit,
95g1... opening portion,
98 ... guide plates,
98d ... bottoms,
100 ... stator distributions,
101 ... impulse generator distributions,
102 ... packing rings.
Specific embodiment
Hereinafter, one embodiment of the present invention is illustrated based on Fig. 1 to Figure 16.
Fig. 1 is the overall side view of the saddle riding type two-wheeled 1 for being applicable one embodiment of the present invention, and Fig. 2 is only table Show left side view of the internal combustion engine 20 relative to the carrying state of vehicle frame 2.It should be noted that in specification of the invention and power In the scope of sharp claim, direction all around is in accordance with the two-wheeled 1 advance side of the saddle riding type of present embodiment To the usual benchmark for front.
As shown in Figures 1 and 2, the main frame 4 of the vehicle frame 2 of this saddle riding type two-wheeled 1 from head tube 3 in overall width direction Centre extend with being rearward slightly slanted after, bend downwards and form main high-dipping portion 4a, and underframe 5 from head tube 3 in car The oblique back lower place of cross direction mediad extends.
The anterior of crankcase 22 in internal combustion engine 20 is installed on the bottom of underframe 5 using bolt 8 at upper and lower two positions Frame support bracket 5b, and the rear portion of crankcase 22 is installed on the main high-dipping portion of main frame 4 using bolt 9 at upper and lower two positions The frame support bracket 4b of the bottom of 4a, internal combustion engine 20 is supported on vehicle frame 2.
Pair of right and left vehicle seat track 6 rearward extends from the bending section of main frame 4 and forms bent halfway portion, and linking should The supporting saddle guide rail 6 of after-poppet 7 of the bending section of vehicle seat track 6 and the central portion of main high-dipping portion 4a.
In with upper frame 2, there is front fork 10 in the pivot suspension of head tube 3, have front-wheel 11 in the lower end e axle supporting of front fork 10, The upper end of the pivot of front fork 10 is provided with bogie car 12, and front end e axle supporting is in after the pivot 13 for being arranged on the bottom of main frame 4 Fork 14 rearward extends, and its rear end pivot suspension has trailing wheel 15, and is provided between the central portion and after-poppet 7 of back vent 14 Posterior bumper 16.In main frame 4, fuel tank 17 sets up across the left and right sides, and vehicle seat 18 sets branch at the rear of fuel tank 17 Hold in vehicle seat track 6.
The internal combustion engine 20 for being equipped on vehicle frame 2 is SOHC type list cylinder quartastroke engines, and the internal combustion engine 20 is so that bent axle 31 Point to width of the carbody direction relative to car body, and cylinder slightly lean forward erect attitude suspension.
Front shroud 19f covers internal combustion engine 20 and vehicle seat 18 from the top of the underframe 5 of left and right sides covering vehicle frame 2, side cover 19s Between the left and right sides, back cover 19r covering vehicle seat track 6 it is latter half of.
As shown in Fig. 2 the body of the internal-combustion engine 21 of internal combustion engine 20 is overlapped successively in the oblique upper of the crankcase 22 of left and right segmentation Cylinder body 24 and cylinder cap 25 and be fastened as a whole by stud, be coated with cylinder head cover 26 on cylinder cap 25, cylinder body 24, cylinder cap 25, Cylinder head cover 26 is provided projectingly with leaning forward from crankcase 22 gently towards front.
As shown in Figures 4 and 5, in the lateral direction bent axle 31, main shaft 33, countershaft 34, balancer axle 48 is by left and right point The right crankcase 22a and left crankcase 22b of the crankcase 22 for cutting rotate freely ground axle suspension.Outside the crankcase 22 of left and right segmentation Side is covered by right case cover 55, left case cover 56 and is fastened as a whole using bolt 85 respectively.
The cylinder sleeve 27 that piston 28 can be slidably embedded with of the cylinder body 24 protruded obliquely upward from crankcase 22 is to bent axle It is prominent in the crankshaft room 22c of case 22.Connecting rod 32 link cylinder sleeve 27 in reciprocating piston 28 be erected at cranking arm for bent axle 31 Crank-pin 31p between 31w, 31w, the action corresponding to piston 28 carrys out rotation driving bent axle 31.
In the bottom of cylinder cap 25 and the top of piston 28, combuster 29, the insertion cylinder cap 25 in combustion chamber 29 are formed It is provided with ignition spark plug 30 wall.Suction and exhaust ports (not shown) are formed with combustion chamber 29, driving are provided with cylinder cap 25 and are used In the valve mechanism 40 of the air inlet-exhaust valve (not shown) of the suction and exhaust ports opening for being opened and closed the combustion chamber 29.In the combustion chamber of cylinder cap 25 29 top can rotatably be supported with camshaft 41, and be provided with driven sprocket 42 in the left part of the camshaft 41. The left side of internal combustion engine 20 is formed with cam chain room 46.It is being integrally attached to the drive sprocket 43 and the driven sprocket 42 of bent axle 31 Upper erection cam chain 44, the power of bent axle 31 passes to camshaft 41 via cam chain 44, along with the rotation of camshaft 41, profit Each Rocker arm 45 for making suction and discharge with the cam surface 41b of the cam 41a being formed on camshaft 41 swings, shaft end and Rocker arm 45 The air inlet-exhaust valve that abuts of sliding surface be opened and closed with the timing that specifies.
Gear shift 35 is set to be located at the rear of bent axle 31.Gear shift 35 is advised to be transmitted to trailing wheel 15 Regulation is changed into fixed torque, the engagement that multiple gears of main shaft 33 and countershaft 34 will be arranged on using gear (not shown) Gear ratio.The rotary driving force of bent axle 31 passes to main shaft 33 via clutch 36, is become by gear shift 35 Speed and transmitted from main shaft 33 to countershaft 34, using the power being erected on the sprocket wheel 37 and trailing wheel 15 being fastened as a whole with countershaft 34 Transfer tape 38, power is transmitted to trailing wheel 15.
As depicted in figs. 3 and 5, balancer mechanism 47 is set to be located at the front of bent axle 31.Balancer mechanism 47 makes balance Block 49 is fixed on the two ends of the balancer axle 48 for being supported on crankcase 22, and balancer axle 48 is made using the power transmitted from bent axle 31 Rotation, the vibration caused by the piston 28 of internal combustion engine 20 is eliminated using the rotation of balance weight 49.It is disposed in the balance weight in left side 49 are accommodated in the balance block space 58 for being formed at the front of left crankcase 22b.
Starter motor 60 is disposed of, and positioned at the back upper place of bent axle 31, (does not scheme from battery when internal combustion engine 20 is started Show) receive power supply supply, rotate bent axle 31.
As shown in Figure 3 and Figure 6, oil pump 50 matches somebody with somebody the lower section for being set to be located at bent axle 31.Oil pump 50 is fastened by bolt (not shown) In the right flank of right crankcase 22a, the rotary driving force of bent axle 31 passes to oil pump shaft 51 via gear 52, so as to drive oil pump 50.In the lower section of crankcase 22, right crankcase 22a and left crankcase 22b is combined and constitutes food tray 53.In right crankcase 22a is formed with the supply oil circuit 54 for supplying lubricating oil to oil pump 50 upward from food tray 53.In oil pump 50 and supply oil circuit 54 Between keep oil rectifier 55 using right crankcase 22a and right case cover 23a.For the lubricating oil being held in food tray 53, Using oil pump from supply the force feed of oil circuit 54 lubricating oil by being formed at the supply oil circuit 56 of right case cover 23a and being formed at right bent axle The supply oil circuit 57 of case 22a, is transported to the main portion of the internal combustion engines such as bent axle 31, valve mechanism 40 for the purpose of lubricating and cool down Position, is sent to each position that the lubricating oil of main portions disperses and be delivered in internal combustion engine 20 in internal combustion engine and returns to food tray In 53, each position is sent to by oil pump 50 again.
As shown in figure 4, positioned at the left side of internal combustion engine 20 and for the supply power supply (not shown) of the battery to internal combustion engine 20 TRT be that generator 81 is disposed in Dynamo Room 80.Dynamo Room 80 utilizes fastening bolt 85 by left crankcase 22b And abutted with the outside of left crankcase 22b and realize fixing and utilizing as the left case cover 23b one of the effect of generator cover 90 Their Inner Constitution.Generator 81 possesses:Rotor 82, it is installed on from crankshaft room 22c to song prominent in Dynamo Room 80 The left end 31a of axle 31;Stator 83, it is relative with rotor 82 and is installed on generator cover 90.
Fig. 7 is the VII-VII line profiles of Fig. 3, is near amplidyne generator room 80 and the figure of generator 81.In internal combustion engine 20 operating when, the power of bent axle 31 is delivered to rotor 82 from flywheel 67, start when, the power from starter motor 60 via rise Dynamic reduction gearing 61, starting driven gear 63, mono-directional overrun clutch 65, clutch outer member 66, flywheel 67 are delivered to bent axle 31.
As shown in figure 3, starter motor 60 is disposed of positioned at the back upper place of left crankcase 22b.Start and deceleration gear 61 and Driven gear 63 is started to be disposed of positioned at the front lower place of starter motor 60.As shown in fig. 7, start and deceleration gear 61 is big footpath tooth Wheel 61a and small-diameter gear 61b abuts to form and makes the part that the rotating speed of starter motor 60 slows down, the output shaft of starter motor 60 The output gear 60b of 60a is engaged with the large diameter gear 61a of start and deceleration gear 61.Left crankcase 22b is installed in generator cover In the state of, the reduction gear shaft 62 of supporting start and deceleration gear 61 is using the reduction gear shaft branch for being formed in left crankcase 22b The reduction gearing e axle supporting projection 92b for holding raised 22d and being formed in generator cover 90 can rotatably be supported by.Start driven tooth Wheel 63 possesses with the small-diameter gear 61b meshed gears portion 63a of start and deceleration gear 61 and is supported on the lug boss of bent axle 31 63b, bent axle 31 can be rotatably supported on via needle bearing 64.
The rotor 82 of generator 81 is formed as the cylindric surrounding wall portion for possessing bottom 82a and being formed in around the 82a of bottom The cup-shaped of 82b, permanent magnet 82c is provided with the inner peripheral surface of cylindric surrounding wall portion 82b.
The flywheel 67 abutted with rotor 82 possesses lug boss 67a and gear part 67b, and gear part 67b is using riveting 69 and turns The bottom 82a of son 82 is fixed as one.The gear part 67b of flywheel 67 is fastened as a whole using bolt 70 with clutch outer member 66. Rotor 82, flywheel 67 and the clutch outer member 66 being integrally formed are inserted with bent axle 31, the clutch being fixed as one with flywheel 67 Shell 66 is supported on the lug boss 63b for starting driven gear 63 via mono-directional overrun clutch 65.Using key 68 to flywheel 67 Lug boss 67a is positioned, and flywheel 67 is installed on bent axle 31 using spline is chimeric, and is anchored on using packing ring 71 and nut 72 Bent axle 31.
As shown in Fig. 7 and Figure 12, the stator 83 for being opposed to arrange with the inner side of rotor 82 possesses:Be formed as the installation of annular Multiple coil rack portion 83c that plate 83a, the circumference from installing plate 83a radially extend, it is wound in the coil rack portion The coil portion 83d of 83c.The both ends of the coil line of coil portion 83d be connected with stator distribution 100 and with battery (not shown) Link.Equally spaced worn at three positions of installing plate 83a and penetrated plug (プ ラ グ) patchhole.
As shown in Fig. 7 and Figure 12, the pulse generation of the timing of the rotation of detection bent axle 31 is configured with Dynamo Room 80 Device 75.The outer peripheral face of the cylindric surrounding wall portion 82b of the rotor 82 of generator 81 puts up detected element with reserving predetermined distance 82d.The test section 75a of impulse generator 75 rotor 82 rotate and be detected element 82d positioned at assigned position when, be detected Element sub-prime 82d is opposed to be fixed on the inner side of aftermentioned generator cover 90.By rotating bent axle 31 and detecting test section 75a Close to detected element 82d, so that impulse generator 75 detects the timing of the rotation of bent axle 31.Impulse generator 75 is detected The signal for going out is sent to combustion engine control (not shown) by impulse generator distribution 101.
As shown in Fig. 2, Fig. 5, Fig. 7 and Fig. 8, installed in left crankcase 22b end face outside and with left crankcase 22b mono- Rise and form the generator cover 90 of Dynamo Room 80 and be formed as concavity.Generator cover 90 possesses:Bowl-shaped part 91, it is formed as cup-shaped simultaneously And generator 81 is received inside it;Auxiliary equipment incorporating section 92, it stretches out towards back upper place from bowl-shaped part 91 and internally receives Receive auxiliary equipment;Balance weight cover portion 93, its balance weight sky that left crankcase 22b is formed to be covered to receive balance weight 49 Between 58 mode in left side stretched out towards front from bowl-shaped part 91;Outside wall portions 94, it is formed as regulation in the periphery of above-mentioned part The wall-like of height and its end face is abutted with the end face of left crankcase 22b.
As shown in Figures 7 and 8, the center of the bottom surface 91a positioned at bowl-shaped part 91 and determining for support generator 81 are formed with The tubular support 95 of son 83.Tubular support 95 possesses:Cylindrical portion 95a, it is formed as cylindric and towards the song of interior side The side of axle box 22 protrudes;Lug boss 95b, it is circumferentially protruded at substantially equal intervals from the wall of cylindrical portion 95a at three positions And it is formed with screwed hole 95c.In the end face 95a of cylindrical portion 95a1Be formed with from the inner peripheral surface of cylindrical portion 95a with Rack to The convex portion 95a that the direction of crankcase 22 protrudes2.As shown in Fig. 4, Figure 12 and Figure 16, the perforate spiral shell of the installing plate 83a of stator 82 is inserted The tapping bolt 86 of bolt patchhole 83b is fastened with the screwed hole 95c of tubular support 95, so that stator 83 is fixed on tubular supporting Portion 95.
As shown in figure 8, being formed with the top of cylindrical portion 95a be open towards auxiliary equipment incorporating section 92 and from cylindrical portion The end face 95a of 95a1Importing notch 95d (reference picture 9) being cut.As shown in figure 16, notch 95d is imported in stator 82 In the case of being installed on generator cover 90, inside as connection cylindrical portion 95a with it is outside, and by lubricating oil from cylindrical portion The outside lubricating oil imported inside cylindrical portion 95a of 95a imports oil circuit 95f.As shown in figure 8, lubricating oil imports opening for oil circuit 95f Oral area 95f1 is open towards auxiliary equipment incorporating section 92, will attach to lubricating oil that auxiliary equipment incorporating section 92 flows down from cylindrical portion The inside of 95a imports the inside of generator 81.
And, in the side of the front side of cylindrical portion 95a, the position of the importing notch 95d is being left, it is formed with from circle The end face 95a of cylinder portion 95a1The discharge notch 95 for cutting out.Discharge notch 95e is more located at down than the importing notch 95d Side.Notch 95e is in the case where stator 82 is installed on generator cover 90 for discharge, the inside as connection cylindrical portion 95a with it is outer Portion and the lubricating oil discharge oil circuit 95g that lubricating oil is discharged to the outside from the inside of cylindrical portion 95a.As shown in figure 8, lubricating oil , in the front lateral opening of cylindrical portion 95a, flowing into, the lubricating oil in Dynamo Room 81 is more for the opening portion 95g1 of discharge oil circuit 95g In the case of, can be from lubricating oil discharge oil circuit 95g discharges.
In the bottom surface 91a in bowl dress portion 91, from being configured at the tubular support 95 in center towards the outside wall portions 94 of bowl-shaped part 91 Radially form the radial rib 91b of multiple specified altitudes.In radial rib 91b, bowl-shaped part is connected in outside wall portions 94 91 are formed as another with the vicinity of the connecting portion 94a of auxiliary equipment incorporating section 92, the lubricating oil guiding rib 91c engaged with one end of rib One end extends to the opening portion 95d for importing notch 95d of cylindrical portion 95a1Rear, can be by from auxiliary equipment incorporating section 92 The lubricating oil flowed down to bowl-shaped part 91 is guided to the opening portion 95f1 that lubricating oil imports oil circuit 95f.
The auxiliary equipment for being formed with the auxiliary equipments such as storage starter motor 60, start and deceleration gear 61 in generator cover 90 is received Receive portion 92, the auxiliary equipment incorporating section 92 turns into the opening portion 95f that oil circuit 95f is imported from bowl-shaped part 91, from lubricating oil1Upward The shape of expansion.It is formed with auxiliary equipment incorporating section 92:Bottom 92a;Reduction gearing e axle supporting projection 92b, it is from bottom 92a Inwardly the side of bent axle 31 of side protrudes, and supports start and deceleration gear with the reduction gearing e axle supporting projection 22d of left crankcase 22b 61 reduction gear shaft 62.
And, it is provided with auxiliary equipment incorporating section 92:A pair of impulse generators install projection 92c, and it is inside from bottom 92a Side is prominent, is provided with impulse generator 75;Guide plate installs projection 92d, and it is fastened for receiving empty to dispersing to auxiliary equipment Between the guide plate 98 that guides of lubricating oil in 88.Impulse generator installs projection 92c and guide plate is installed projection 92d and formed It is lower than the height of reduction gearing e axle supporting projection 92b.
In addition, the bottom 92a in auxiliary equipment incorporating section 92 is formed with rib 92e, 92g and guide plate of bearing guide plate 98 98 positioning convex portion 92f.Bottom 92a from the bottom surface 91a of bowl-shaped part 91 to auxiliary equipment incorporating section 92 is formed with guiding and leads To a pair of guiding rib 91d of plate 98.
In the outside wall portions 94 at the rear positioned at auxiliary equipment incorporating section 92, it is formed with and insertion arteries and veins with the shape shown in Figure 10 Rush the chimeric packing ring installation otch 94a of the packing ring 102 of generator distribution 101 and stator distribution 100.Stator distribution 100 and impulse generator distribution 101 pass through in the packing ring 102, the battery of the electric energy sent with storage generator 81 is (not Diagram), the connection such as combustion engine control (not shown).
As shown in Figure 12 to Figure 15, guide plate 98 possesses:Installation portion 98a;Oblique upper extension 98b, it is from installation portion 98a Extend with bypassing reduction gearing e axle supporting projection 92b to oblique back upper place;Obliquely downward extension 98c, its from installation portion 98a to tiltedly before Lower section extends;Surrounding wall portion 98e, its to surround surrounding in the way of be formed as specified altitude.
Oblique upper extension 98b and installation portion 98a extends on the same plane, and covers impulse generator distribution 101. Guide plate 98 is positioned by the convex portion 92f of auxiliary equipment incorporating section 92 and guide plate guiding rib 91d, and is formed on auxiliary equipment Rib 92e and the 92g supporting of incorporating section 92, the tapping bolt 99 of the bolt-inserting hole 98f of insertion installation portion 98a set by with auxiliary The guide plate of standby incorporating section 92 installs projection 92d and screws togather and be installed on auxiliary equipment incorporating section 92.
As shown in figure 5, obliquely downward extension 98c avoids the rotor 82 of generator 81 from installation portion 98a, so that bottom 98d imports the opening portion 95f of oil circuit 95f towards the lubricating oil of the cylindrical portion 95a of tubular support 951Top near side Formula, from terms of rear, extends from the obliquely downward of the lateral side of generator cover 90 of crankcase 22.And, as shown in figure 12, from from right flank When seeing, the bottom 98d of obliquely downward extension 98c imports the opening portion 95f of oil circuit 95f towards lubricating oil1Oliquely downward extend To the outer peripheral face of stator 83, guide plate 98 covers the stator distribution 100 extended from stator 83.
Embodiments in accordance with the present invention, on the top of the tubular support 95 of generator cover 90, are formed with connection tubular branch The inside of bearing portion 95 imports oil circuit 95f with the lubricating oil of inside outside and by lubricating oil importing tubular support 95, and, Tubular support 95 be formed with it is being set in the position for leaving lubricating oil and importing oil circuit 95f, in connection tubular support 95 Portion and outside and the lubricating oil of removal of lubricant discharge oil circuit 95g, the opening portion 95g of lubricating oil discharge oil circuit 95g1In tubular branch The side of bearing portion 95, the opening portion 95f1 for importing oil circuit 95f than lubricating oil is more located at lower section, therefore is dispersed in Dynamo Room 80 Substantial amounts of lubricating oil guided by lubricating oil guiding rib 91c, import the inside of oil circuit 95f by tubular support 95 from lubricating oil And flow into inside generator 81, if the amount of the lubricating oil inside generator 81 reaches more than ormal weight, lubricating oil can be made From inside generator 81 by importing the opening portion 95f of oil circuit 95f than lubricating oil1The lubricating oil discharge oil that low position is formed The opening portion 95g of road 95g1Discharge, can ensure generator so that lubricating oil is directed to the inside of generator 81 by simple structure 81 cooling performance, and can make to be held in the lubricating oil more than ormal weight inside generator 81 discharge and make generator 81 The friction loss reduction that lubricant drag during generating is brought, making the energy loss of internal combustion engine 20 reduces.
And, generator cover 90 possesses the opening portion 95f that oil circuit 95f is imported towards lubricating oil1Top expand auxiliary Equipment accommodation space 88.As shown in figure 3, in the usual operating of internal combustion engine, during from from terms of left surface, bent axle 31 revolves counterclockwise Turn, the lubricating oil for being held in the bottom of internal combustion engine 20 is flown using the grade of start and deceleration gear 61 towards auxiliary equipment accommodation space 88 Dissipate.And, from starter motor 60, start and deceleration gear 61, the lubricating oil of the auxiliary equipments such as driven gear 63 discharge is started auxiliary Help and dispersed in equipment accommodation space 88.By in the space for expanding by this way trapping disperse delay lubricating oil and can More lubricating oil are collected, therefore, it is possible to substantial amounts of lubricating oil is directed in generator 81, it is not necessary to set to cool down The a plurality of lubricant passage way of lubricating oil is guided, can reduce manufacturing cost.Even if in addition, substantial amounts of lubricating oil is directed into generating In machine 81, it is also possible to by the discharge of remaining lubricating oil, be able to maintain that the optimised quantity for oil cooled lubricating oil, and make internal combustion The energy loss of machine 20 is further reduced, more effectively cooled electric generator.
In addition, the guide plate 98 of the lubricating oil that guiding is dispersed is provided with auxiliary equipment accommodation space 88, the guide plate 98 Bottom 98d matches somebody with somebody the opening portion 95f that the lubricating oil for being set to be located at tubular support 95 imports oil circuit 95f1Top near, therefore The lubricating oil dispersed in auxiliary equipment accommodation space 88 can be efficiently collected in, along guide plate 98, tubular is effectively directed to The lubricating oil of support 95 imports the opening portion 95f of oil circuit 95f1, therefore, it is possible to substantial amounts of lubricating oil is transported into generator 81 Inside, the effect for cooling down generator 81 further increases.
Guide plate 98 has used covering to extend from stator 83 to the packing ring 102 positioned at the top of auxiliary equipment accommodation space 88 The stator cap assembly of distribution 100, and the opening of oil circuit 95f is imported towards lubricating oil from the installation portion 98a of guide plate 98 Portion 95f1It is arranged obliquely, therefore the increase that number of components is just prevented from manufacturing cost need not be increased, and effectively will profit Lubricating oil is imported in generator 81 and improves cooling effect.
In the described embodiment, it is by the circle in tubular support 95 that lubricating oil imports oil circuit and lubricating oil discharge oil circuit Cylinder portion 95a sets and imports notch 95d and discharge notch 95e and set, but the top of cylindrical portion 95a can also be entered Eleven punch 11 and formed lubricating oil import oil circuit, the front side of cylindrical portion 95a is perforated and formed lubricating oil discharge oil circuit.

Claims (4)

1. a kind of generator cooling structure of internal combustion engine, it possesses:
Generator cover (90), it is formed as concavity, is fixed on the outside of crankcase (22) and is internally formed generator concave Room (80), and it is provided with the tubular support (95) from concave inwall inwardly projecting;
The stator (83) of generator (81), it is supported on the tubular support (95);
Rotor (82), it is formed as cup-shaped, opposed with the stator (83) with being set to, and is driven by the driving force of internal combustion engine (20) Dynamic rotation,
The generator cooling structure of the internal combustion engine is characterised by,
On the top of the tubular support (95), it is formed with and connects the inside of the tubular support (95) with outside and general The lubricating oil that lubricating oil imports the inside of the tubular support (95) imports oil circuit (95f),
Lubricating oil being formed with the tubular support (95) and discharging oil circuit (95g), the lubricating oil discharges oil circuit (95g) connection The inside of the tubular support (95) and outside, are located off the position that the lubricating oil imports oil circuit (95f), and will Lubricating oil is discharged from the inside of the tubular support (95),
Opening portion (the 95g of lubricating oil discharge oil circuit (95g)1) in the side of the tubular support (95), than the lubrication Oil imports the opening portion (95f of oil circuit (95f)1) lower section is more located at,
The generator cover (90) possesses the opening portion (95f that oil circuit (95f) is imported to the lubricating oil1) top expand it is auxiliary Equipment incorporating section (92) is helped,
The lubricating oil of inside of the tubular support (95) is imported from by the auxiliary equipment incorporating section (92) and the bent axle The auxiliary equipment accommodation space (88) that case (22) is constituted is imported,
The lubricating oil that will be dispersed in the auxiliary equipment accommodation space (88) is provided with the auxiliary equipment accommodation space (88) It is directed to the opening portion (95f that the lubricating oil imports oil circuit (95f)1) guide plate (98).
2. the generator cooling structure of internal combustion engine according to claim 1, it is characterised in that
The starter motor (60) for starting internal combustion engine (20) is equipped in the auxiliary equipment accommodation space (88) and is incited somebody to action The power of the starter motor (60) is delivered to the power transmitting gear (61) of bent axle (31),
The lubricating oil for importing the inside of the tubular support (65) is to use to be passed from the starter motor (60) and the power Pass the lubricating oil that gear (61) disperses.
3. the generator cooling structure of internal combustion engine according to claim 2, it is characterised in that
The bottom (98d) of the guide plate (98) is disposed of positioned at the opening portion (95f1) top near.
4. the generator cooling structure of internal combustion engine according to claim 3, it is characterised in that
The guide plate (98) is that covering is extended to positioned at the upper of the auxiliary equipment accommodation space (88) from the stator (83) The cap assembly (98) of the distribution (100) of the packing ring (102) in portion,
The guide plate (98) is formed as importing oil circuit towards the lubricating oil from the installation portion (98a) of the guide plate (98) Opening portion (the 95f of (95f)1) incline.
CN201410743299.XA 2013-12-10 2014-12-08 Internal combustion engine generator cooling structure Active CN104702047B (en)

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JP2013-254912 2013-12-10
JP2013254912A JP6050220B2 (en) 2013-12-10 2013-12-10 Generator cooling structure for internal combustion engine

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BR102014030529B1 (en) 2022-06-21
BR102014030529A2 (en) 2016-03-15
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JP6050220B2 (en) 2016-12-21
IN2014DE03427A (en) 2015-08-21

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