CN203685341U - Internal-combustion engine - Google Patents
Internal-combustion engine Download PDFInfo
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- CN203685341U CN203685341U CN201320596245.6U CN201320596245U CN203685341U CN 203685341 U CN203685341 U CN 203685341U CN 201320596245 U CN201320596245 U CN 201320596245U CN 203685341 U CN203685341 U CN 203685341U
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- bent axle
- disc plate
- actuation gear
- oil filter
- combustion engine
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Abstract
The utility model provides an internal-combustion engine. The internal-combustion engine comprises a centrifugal oil filter capable of reducing the axial size of a crankshaft easily. The internal-combustion engine comprises a crankcase (21), a crankshaft (23) and a drive gear (35), wherein the crankshaft (23) can be rotationally supported on a right bearing (33) arranged in the crankcase (21) and is contained in the crankcase (21); the drive gear (35) is arranged on a part protruding from the right bearing (33) of the crankshaft (23) so as to transmit the driving force of the crankshaft (23); and a disc-shaped centrifugal oil filter (34) is arranged on the crankshaft (23) between the right bearing (33) and the drive gear (35).
Description
Technical field
The utility model relates to a kind of internal-combustion engine.
Background technique
All the time, known a kind of internal-combustion engine that comprises centrifugal oil filter, this centrifugal oil filter utilizes the driving force of bent axle to rotate, and utilizes by rotating the centrifugal force that produces impurity such as being supplied to dust in the machine oil of internal combustion engines is separated to (with reference to patent documentation 1).
Patent documentation 1:(Japan) JP 2010-151003 communique
In the internal-combustion engine of above-mentioned patent documentation 1, bent axle can be supported on the bearing being located in crankcase rotatably, and centrifugal oil filter is located at the front end from the outstanding position of bearing of bent axle.Therefore, need to guarantee significantly Crankshaft size upwards, make Crankshaft size upwards become larger.
Model utility content
The utility model is made in view of above-mentioned actual conditions, and its object is to provide a kind of internal-combustion engine centrifugal oil filter, that can be easy to reduce Crankshaft size upwards that comprises.
As the solution of the problems referred to above, the scheme that technological scheme 1 is recorded is a kind of internal-combustion engine, and this internal-combustion engine comprises: crankcase 21; Bent axle 23, it can be supported on the bearing 33 being located in described crankcase 21 rotatably, is housed in described crankcase 21; Actuation gear 35, its be arranged on described bent axle 23 from the outstanding position of described bearing 33, transmit the driving force of described bent axle 23; Described internal-combustion engine is characterised in that, discoid centrifugal oil filter 34 is installed on described bent axle 23 between described bearing 33 and described actuation gear 35.
On the basis of the internal-combustion engine of recording in technological scheme 1, the scheme that technological scheme 2 is recorded is characterised in that, described centrifugal oil filter 34 extend to the driven gear 37 that engages with described actuation gear 35, and described crankcase 21 in the axial direction of described bent axle 23 with in the space between the opposed wall 21R of portion of this driven gear 37, and, when along axially the observing of described bent axle 23, described centrifugal oil filter 34 and described driven gear 37 overlapping configuration.
On the basis of the internal-combustion engine of recording in technological scheme 1 or 2, the scheme that technological scheme 3 is recorded is characterised in that, also comprise crankcase cover 55, the side of these crankcase cover 55 coated described crankcases 21, and coated described bent axle 23 from the outstanding position of described bearing 33, on described crankcase cover 55, be formed with the containing room 61 of accommodating oil pump 60, drive the oil pump actuation gear 63 of described oil pump 60 to engage with described actuation gear 35, when along axially the observing of described bent axle 23, this oil pump actuation gear 63 and described centrifugal oil filter 34 overlapping configuration.
On the basis of the internal-combustion engine that any one is recorded in technological scheme 1～3, the scheme that technological scheme 4 is recorded is characterised in that, described centrifugal oil filter 34 by described bearing 33 and described actuation gear 35 along being installed on described bent axle 23 under the state of the axial compression of described bent axle 23.
On the basis of the internal-combustion engine that any one is recorded in technological scheme 1～4, the scheme that technological scheme 5 is recorded is characterised in that, described centrifugal oil filter 34 comprises: the first disc plate 82, it is configured in described bearing 33 sides, central authorities are formed with through hole 80, and peripheral portion is formed with the reflex part 81 turning back to described through hole 80 sides outside; The second disc plate 84, it is configured in described actuation gear 35 sides, central authorities are formed with through hole 83, and inner circumference edge portion is formed as the belleville spring shape staggering in the axial direction of described through hole 83 with periphery edge, and its external diameter is set as less than the external diameter of described the first disc plate 82; Axle sleeve 85, is embedded in described bent axle 23 outside it, and passes in described the first disc plate 82 and described the second disc plate 84 described through hole 80,83 separately; in the end of leaning on described bearing 33 sides in the axial direction of described bent axle 23 of described axle sleeve 85, be formed with the lip part 86 outstanding to the radial outside of described bent axle 23, in the end of leaning on described actuation gear 35 sides in the axial direction of described bent axle 23 of described axle sleeve 85, circumferential whole region at described axle sleeve 85 is formed with stepped part 87, this stepped part 87 is recessed to the radially inner side of described bent axle 23, and open to described actuation gear 35 sides in the axial direction of described bent axle 23, the inner circumference edge portion of described the first disc plate 82 in the axial direction of described bent axle 23 with described lip part 86 butts, described the second disc plate 84 is configured to more close described the first disc plate 82 sides than its inner circumference edge portion with its periphery edge in the axial direction of described bent axle 23, and its periphery edge is entrenched in the inner side of the described reflex part 81 of described the first disc plate 82, its inner circumference edge portion by described actuation gear 35 to described the first disc plate 82 thrusters press and with the state of described actuation gear 35 butts, be housed in the space being surrounded by described stepped part 87 and described actuation gear 35, described the second disc plate 84 is compressed in the axial direction of described bent axle 23 by being pushed by described actuation gear 35, and make its inner circumference edge portion be resisted against described actuation gear 35 by elastic force.
On the basis of the internal-combustion engine of recording in technological scheme 5, the scheme that technological scheme 6 is recorded is characterised in that, described centrifugal oil filter 34 is configured to: described axle sleeve 85 is passed by described bent axle 23, described the first disc plate 82 is passed by described axle sleeve 85 in the mode of its inner circumference edge portion and described lip part 86 butts, described the second disc plate 84 is passed by described axle sleeve 85 than the state of more close described the first disc plate 82 sides of its inner circumference edge portion with its periphery edge, and the periphery edge that makes described the second disc plate 84 is entrenched in the inner side of the reflex part 81 of described the first disc plate 82, and described actuation gear 35 is passed by described bent axle 23, enter described the second disc plate 84 to described the first disc plate 82 thrusters.
The scheme of recording according to technological scheme 1, compared with the situation that is located at the crankshaft front end outstanding from bearing, can be easy to suppress centrifugal oil filter at upwards outstanding of Crankshaft with centrifugal oil filter, therefore can be easy to reduce Crankshaft size upwards.
The scheme of recording according to technological scheme 2, can utilize idle space to guarantee the capacity of centrifugal oil filter.
The scheme of recording according to technological scheme 3, can utilize idle space to guarantee the capacity of centrifugal oil filter.
The scheme of recording according to technological scheme 4, can install centrifugal oil filter by simple method.In addition, the dismounting of centrifugal oil filter is easy, can carry out efficiently the operation such as clean grade of centrifugal oil filter.
According to the scheme of technological scheme 5,6 records, can guarantee by easy structure the sealing of centrifugal oil filter.
Brief description of the drawings
Fig. 1 is the left surface figure that has represented to carry the two-wheeled vehicle of the internal-combustion engine of the utility model mode of execution.
Fig. 2 is the sectional arrangement drawing of above-mentioned internal-combustion engine.
Fig. 3 is the expansion sectional drawing along A-A line of Fig. 2.
Fig. 4 is the expansion sectional drawing along B-B line of Fig. 2.
Fig. 5 is the enlarged view of Fig. 4.
Fig. 6 (A)～Fig. 6 (D) is the figure that the assembling method of the centrifugal oil filter of above-mentioned internal-combustion engine is located in explanation.
Description of reference numerals
20 internal-combustion engines
21 crankcases
23 bent axles
33 right bearings (bearing)
34 centrifugal oil filters
35 actuation gears
37 driven gears
55 right crankcase covers (crankcase cover)
60 oil pumps
61 oil pump containing rooms (containing room)
63 oil pump actuation gears
80 through holes
81 reflex parts
82 first disc plates
83 through holes
84 second disc plates
85 axle sleeves
86 lip parts
87 stepped part
Embodiment
Below, based on brief description of the drawings mode of execution of the present utility model.If there is no special records, the direction such as all around in following explanation is identical with the direction on vehicle.In addition, in figure, arrow FR represents vehicle front, and arrow LH represents vehicle left, and arrow UP represents vehicle top.In addition, in the present embodiment, will the direction of internal-combustion engine be described by the direction of vehicle, but the direction of internal-combustion engine of the present utility model is not limited to the direction of vehicle.
Fig. 1 is the left surface figure that has represented to carry the two-wheeled vehicle 1 of the internal-combustion engine of the utility model mode of execution.First, this two-wheeled vehicle 1 is described, the vehicle frame 2 of two-wheeled vehicle 1 have be positioned at the head tube 3 of front end, from head tube 3 is rearward extended again downwards extend main car frame 4 and the decline frame 5 extending downwards from head tube 3.In head tube 3, can turn to ground axle suspension to have pair front-wheel 6 to carry out the pairing left and right front fork 7 of axle supporting via deflecting bar 8.On the top of deflecting bar 8, the Joystick 9 that turns to use is installed.On the other hand, in the lower end of main car frame 4, be provided with the pivot plate 10 extending downwards, on pivot plate 10, be supported with and omit illustrated swing arm in the mode that direction swings up and down.
In above-mentioned two-wheeled vehicle 1, the internal-combustion engine 20 of present embodiment is configured between pivot plate 10 and decline frame 5.Internal-combustion engine 20 is air-cooled single-cylinder engines, comprises crankcase 21 and the upper lateral part outstanding cylinder portion 22 in top forward from crankcase 21.
Internal-combustion engine 20 is by making the front portion of crankcase 21 be supported on decline frame 5 and making the rear support of crankcase 21 be supported in vehicle frame 2 in pivot plate 10.In crankcase 21, contain bent axle 23 in its front side inside, and contain speed changer M at the rear of bent axle 23., internal-combustion engine 20 becomes driving source and the so-called power unit type of speed changer shape all-in-one-piece.
With reference to Fig. 2, in cylinder block 24, be formed with cylinder hole 26.In figure, L1 represents the cylinder axis axis in cylinder hole 26, and cylinder axis axis L1 slightly forwards rolls tiltedly with respect to Vertical direction.In figure, C1 represents the central axis (following, to be called crankshaft center line) of bent axle 23.In addition, crankshaft center line C1 extends along overall width direction.In addition, in the cylinder head 25 of present embodiment, the wall portion of its forward end works as so-called valve mechanism cover, and cylinder head 25 has the structure of valve mechanism cover and cylinder head with becoming one.It should be noted that, although in the present embodiment, cylinder block 24 forms as one with bent axle 21, cylinder block 24 and the structure of cylinder head 25 for linking removably, and cylinder block 24 and bent axle 21 can be also the structure of split link.
With reference to Fig. 1 and Fig. 2, on the rear wall of cylinder head 25, be formed with the suction port 25IN connecting for one end of suction tude in the lump, on the antetheca of cylinder head 25, be formed with the relief opening 25EX connecting for one end of outlet pipe 29.The other end of suction tude is connected with the downstream side of the air inflow regulating devices such as Carburetor, and outlet pipe 29 extends to rear view of vehicle from the antetheca of cylinder head 25.
With reference to Fig. 2 and Fig. 3, in the cylinder hole 26 of cylinder block 24, can be embedded with slidably piston 30, piston 30 links via connecting rod 31 and bent axle 23.Connecting rod 31 converts the to-and-fro motion of piston 30 to bent axle 23 rotatablely move.
As shown in Figure 2, one end makes the other end separately to firing chamber 42 openings that are formed in cylinder head 25 in the suction port 25IN of the rear wall upper shed of cylinder head 25 and one end at the relief opening 25EX of the antetheca upper shed of cylinder head 25.Firing chamber 42 is formed on the elongation line on the bottom surface of cylinder head 25 of cylinder axis axis L1, is also communicated with it towards cylinder hole 26.The opening of firing chamber 42 1 sides of suction port 25IN and relief opening 25EX can be closed by intake valve 43, exhaust valve 44 respectively.The on-off action of the suction port 25IN being undertaken by intake valve 43 is undertaken by the swing of intake rocker 45, the on-off action of the relief opening 25EX being undertaken by exhaust valve 44 is undertaken by the swing of exhaust rocker arm 46, and intake rocker 45 and exhaust rocker arm 46 are swung by single camshaft 47.
As shown in Figure 3, crankcase 21 has the opposed left wall 21L of portion and the right wall 21R of portion across motor width direction central authorities (being the position on straight line CL in figure), utilizes these left wall 21L of portion and the right wall 21R of portion supporting crankshaft 23.Particularly, bent axle 23 passes in chimeric right bearing 33 at the left bearing chimeric with being formed through left retaining hole 101 on the left wall 21L of portion of crankcase 21 and with being formed through right retaining hole 102 on the right wall 21R of portion, and can be supported rotatably by these bearings.
In bent axle 23 from right bearing 33 to overall width direction outside outstanding right part, be provided with centrifugal oil filter 34 and actuation gear 35, in bent axle 23 from left bearing 32 to overall width direction outside outstanding left part, be provided with generator G.
In the present embodiment, speed changer M is mainly made up of main shaft 36, countershaft 40 and change gear train 39.In addition, in Fig. 2, reference character 41 represents the switching mechanism of the speed change gear that switches speed changer M.In addition, as shown in Figure 2, countershaft 40 is configured in the rear lower side of main shaft 36.
At this, above-mentioned driven gear 37 separates in the axial direction of bent axle 23 with the right wall 21R of portion, between these driven gears 37 and the right wall 21R of portion, forms space.And above-mentioned centrifugal oil filter 34 extends in the space between the right wall 21R of portion of driven gear 37 and crankcase 21, and, when along axially the observing of bent axle 23, above-mentioned centrifugal oil filter 34 and driven gear 37 overlapping configuration.
In addition, in the internal-combustion engine 20 of present embodiment, at the left wall 21L of portion of crankcase 21, left crankcase cover 54 is installed, at the right wall 21R of portion, right crankcase cover 55 is installed.Left crankcase cover 54 is coated from the left wall 21L(of portion left bearing 32) outstanding bent axle 23 left parts and generator G.On the other hand, right crankcase cover 55 is coated from the right wall 21R(of portion right bearing 33) outstanding bent axle 23 right parts, centrifugal oil filter 34, actuation gear 35 and clutch 38 etc.The front end of bent axle 23 right parts is inserted into the bearing portion 55A being formed on right crankcase cover 55 inwalls, can be supported on rotatably this bearing portion 55A.
With reference to Fig. 2, reference character 60 represents the oil pump of the below that is configured in bent axle 23, and as shown in Figure 4, this oil pump 60 is housed in the oil pump containing room 61 being formed on right crankcase cover 55 inwalls.Oil pump 60 is trochoid oil pumps, and pump shaft 62 is extended to the right wall 21R of the portion side of crankcase 21, and the oil pump actuation gear 63 that is located at pump shaft 62 front ends engages with actuation gear 35, is driven by actuation gear 35.
At this, the front end of pump shaft 62 and oil pump actuation gear 63 separate in the axial direction of bent axle 23 with the right wall 21R of portion, between the front end of these pump shafts 62 and oil pump actuation gear 63 and the right wall 21R of portion, form space.And at this, centrifugal oil filter 34 extends in the space forming between the front end of pump shaft 62 and oil pump actuation gear 63 and the right wall 21R of portion, in addition, when along axially the observing of bent axle 23, oil pump actuation gear 63 and centrifugal oil filter 34 overlapping configuration.
Continue with reference to Fig. 4, be formed with introduce stream 65 in the inside of right crankcase cover 55, this introducing stream 65 makes the internal communication of the food tray 64 with the oil pump containing room 61 that are formed on crankcase 21 bottoms.In addition, be also formed with discharge stream 67 in the inside of right crankcase cover 55, this discharge stream 67 makes oil pump containing room 61 be communicated with to grease chamber 66 with the axle head being formed in right crankcase cover 55 on the axially-extending line of bent axle 23.And oil pump 60 can, by driving, be introduced by introducing stream 65 machine oil storing in food tray 64, is sent to axle head to grease chamber 66, and supplies with machine oil to grease chamber 66 via axle head in centrifugal oil filter 34.
Particularly, offer upstream side primary flow path 68 in the inside of bent axle 23 right parts, this upstream side primary flow path 68 is formed on the crankshaft center line C1 of bent axle 23, is communicated with, and extends to grease chamber's 66 side direction centrifugal oil filter 34 sides from axle head with axle head to grease chamber 66.In addition, also offer upstream side secondary flow road 69 in the inside of bent axle 23 right parts, this upstream side secondary flow road 69 is along with the end of centrifugal oil filter 34 1 sides from upstream side primary flow path 68 is extended and extended to motor width direction center side to the radial outside of bent axle 23, with the internal communication of centrifugal oil filter 34.That is, axle head is to grease chamber 66 by the internal communication of upstream side primary flow path 68 and upstream side secondary flow road 69 and centrifugal oil filter 34, and thus, oil pump 60 can be supplied with machine oil to grease chamber 66 to centrifugal oil filter 34 from axle head.Particularly, upstream side secondary flow road 69 is via the internal communication that as a structure member of centrifugal oil filter 34 is axle sleeve 85 and centrifugal oil filter 34, and the structure of this axle sleeve 85 sees below.
And centrifugal oil filter 34 utilizes the driving force of bent axle 23 to rotate, utilize by rotating and produce centrifugal force and discharge and be isolated to its inner radial outside being supplied to the impurity such as dust in inner machine oil.And centrifugal oil filter 34 is supplied to machine oil the outside of bent axle 23 by being formed on the first secondary flow road 70, downstream side, downstream side primary flow path 71 and the downstream control second mate stream 72 of bent axle 23 inside.Particularly, centrifugal oil filter 34 is that axle sleeve 85 is communicated with the first secondary flow road 70, downstream side via its structure member, and the structure of this axle sleeve 85 sees below.
The first secondary flow road 70, downstream side in the connection position of leading to centrifugal oil filter 34 from upstream side secondary flow road 69 along the position axially separating to motor width direction center side of bent axle 23 and the internal communication of centrifugal oil filter 34, along with the radially inner side from centrifugal oil filter 34 to bent axle 23 extends and extends to motor width direction center side, be communicated with downstream side primary flow path 71.
Downstream side primary flow path 71 is formed on the crankshaft center line C1 of bent axle 23, extends to motor width direction center side in the connection position being communicated with the first secondary flow road 70, downstream side.And, downstream control second mate stream 72 is communicated with downstream side primary flow path 71, along with the connection position from being communicated with downstream side primary flow path 71 is extended and extended to motor width direction center side to the radial outside of bent axle 23, and in crankpin 23A through and to the outside opening of bent axle 23.So, in the present embodiment, become from crankpin 23A to its outside machine oil of supplying with.
With reference to Fig. 5, amplify and represented centrifugal oil filter 34.Below, centrifugal oil filter 34 is described in detail.Centrifugal oil filter 34 comprises the first disc plate 82, the second disc plate 84 and axle sleeve 85, the first disc plate 82, section is hat-shaped, is configured in right bearing 33 sides, central authorities are formed with through hole 80, and its periphery edge is formed with the reflex part 81 turning back to through hole 80 sides; The second disc plate 84 is configured in actuation gear 35 sides, and central authorities are formed with through hole 83, and its inner circumference edge portion is formed as the belleville spring shape staggering in the axial direction of through hole 83 with its periphery edge, and its external diameter is set as less than the external diameter of the first disc plate 82; Axle sleeve 85 is outer is embedded in bent axle 23, and passes in the first disc plate 82 and the second disc plate 84 through hole 80,83 separately.
In the end of bearing 33 sides of keeping right on axially at bent axle 23 of axle sleeve 85, be formed with the lip part 86 outstanding to the radial outside of bent axle 23, in the end of leaning on actuation gear 35 sides on bent axle 23 is axial of axle sleeve 85, circumferential whole region at axle sleeve 85 is formed with stepped part 87, this stepped part 87 is recessed to the radially inner side of bent axle 23, and opens to actuation gear 35 sides on bent axle 23 is axial.
And, in centrifugal oil filter 34, the inner circumference edge portion of the first disc plate 82 bent axle 23 axially on lip part 86 butts.In addition, the second disc plate 84 is configured to more close the first disc plate 82 sides than its inner circumference edge portion with its periphery edge on bent axle 23 is axial, and its periphery edge is entrenched in the inner side of the reflex part 81 of the first disc plate 82, its inner circumference edge portion by actuation gear 35 to the first disc plate 82 thrusters press and with the state of actuation gear 35 butts, be housed in the space being surrounded by stepped part 87 and actuation gear 35.
And the second disc plate 84 is compressed bent axle 23 is axial by being pushed by actuation gear 35, and makes its inner circumference edge portion be resisted against actuation gear 35 by elastic force., centrifugal oil filter 34 by right bearing 33 and actuation gear 35 along being installed on bent axle 23 under the state of the axial compression of bent axle 23.
In such centrifugal oil filter 34, the inner circumference edge portion of the second disc plate 84 is resisted against driving gear 35 by elastic force, therefore can guarantee the sealing of the inner circumference edge portion of the second disc plate 84 and the abutting part office of actuation gear 35.In addition, the face towards centrifugal oil filter 34 sides of actuation gear 35 is connected to the inner circumference edge portion of the second disc plate 84, and be crimped on axle sleeve 85 on the face of actuation gear 35 sides, thereby also can guarantee sealing in axle sleeve 85 and the abutting part office of actuation gear 35.
In addition, the second disc plate 84 is compressed on axially at bent axle 23 by being pushed by actuation gear 35, and its periphery edge is also resisted against the periphery edge of the first disc plate 82 by elastic force, accompany therewith, its inner circumference edge portion also by lip part 86 against.Therefore, between the periphery edge of the second disc plate 84 and the periphery edge of the first disc plate 82 and the inner circumference edge portion of the first disc plate 82 and lip part 86 between, also can guarantee sealing.
And, on axle sleeve 85, be formed with and be taken into opening 88 and discharge aperture 89, be taken into opening 88 and upwards connect and be communicated with upstream side secondary flow road 69 in bent axle 23 footpaths, discharge aperture 89 upwards connects and is communicated with the first secondary flow road 70, downstream side in bent axle 23 footpaths.At this, to utilize and be taken into opening 88, the internal communication of upstream side secondary flow road 69 and centrifugal oil filter 34, utilizes discharge aperture 89, and centrifugal oil filter 34 is communicated with the first secondary flow road 70, downstream side.From being taken into the position axially separating to motor width direction center side along bent axle 23, position that opening 88 is communicated with upstream side secondary flow road 69, discharge aperture 89 is communicated with the first secondary flow road 70, downstream side.
In the centrifugal oil filter 34 of said structure, from axle head to grease chamber 66 by upstream side primary flow path 68, upstream side secondary flow road 69 and be taken into opening 88 to inner supplying machine oil, centrifugal oil filter 34 is discharged to radial outside in centrifugal oil filter 34 inside by being rotated the impurity making in machine oil.Then, supply with machine oil by the first secondary flow road 70, downstream side, downstream side primary flow path 71 and downstream control second mate stream 72 to the outside of bent axle 23 from discharge aperture 89.
At this, from being taken into the position axially separating to motor width direction center side along bent axle 23, position that opening 88 is communicated with upstream side secondary flow road 69, discharge aperture 89 is communicated with the first secondary flow road 70, downstream side, the machine oil of therefore, being discharged by discharge aperture 89 becomes the power of being centrifuged and separates the machine oil of impurity.; in centrifugal oil filter 34; due to from being taken into machine oil along the opening 88 that is taken into that is positioned at upstream side to flowing of the machine oil of grease chamber 66 from axle head; from along above-mentioned flow and be positioned at be taken into opening 88 more the discharge aperture 89 in downstream side discharge machine oil; so the machine oil of being discharged by discharge aperture 89 is subject to the impact of centrifugal force, therefore can discharge from discharge aperture 89 machine oil that separates impurity.
Then, with reference to Fig. 6, the assembling method of above-mentioned centrifugal oil filter 34 is described.
First,, as shown in Fig. 6 (A), axle sleeve 85 is passed by the right part of bent axle 23.Now, in the present embodiment, the end face of formation lip part 86 1 sides of axle sleeve 85 is by right retaining hole 102 and right bearing 33 butts on the right wall 21R of portion of being formed on of crankcase 21.
In addition, now, the opening 88 that is taken into of axle sleeve 85 is alignd with upstream side secondary flow road 69, and discharge aperture 89 is alignd with the first secondary flow road 70, downstream side.Axle sleeve 85 is can not counterrotating mode being installed on bent axle 23.As making the axle sleeve 85 can not counterrotating method, can be pressed into, by spline carry out chimeric, pin that spline uses etc. is set.
Then,, as shown in Fig. 6 (B), the first disc plate 82 is passed by axle sleeve 85 in the mode of its inner circumference edge portion and lip part 86 butts.
Then,, as shown in Fig. 6 (C), the second disc plate 84 is more passed by axle sleeve 85 by the state of the first disc plate 82 sides than its inner circumference edge portion with its periphery edge, and make its periphery edge be entrenched in the inner side of the reflex part 81 of the first disc plate 82.At this, under this state, as shown in Fig. 6 (C), the second disc plate 84 is in not compressed in the axial direction state.
Then, as shown in Fig. 6 (D), actuation gear 35 is passed by bent axle 23, the second disc plate 84 is entered to the first disc plate 82 thrusters via its inner circumference edge portion.Thus, the second disc plate 84 is in the axial compressed state along bent axle 23, and its inner circumference edge portion is resisted against actuation gear 35.
In the internal-combustion engine 20 of the above present embodiment of recording, compared with the situation that is located at bent axle 23 front ends outstanding from right bearing 33 with centrifugal oil filter, can be easy to suppress centrifugal oil filter 34 at bent axle 23 outstanding on axially, therefore can be easy to reduce the size of bent axle 23 on axially.
In addition, in this internal-combustion engine 20, centrifugal oil filter 34 extend to driven gear 37 that same actuation gear 35 engages, and crankcase 21 in the axial direction of bent axle 23 with in the space between the opposed right wall 21R of portion of this driven gear 37, and when along axially the observing of bent axle 23, this centrifugal oil filter 34 and driven gear 37 overlapping configuration, so can utilize idle space (effectively utilizing space) to guarantee the capacity of centrifugal oil filter 34.
In addition, in this internal-combustion engine 20, the side of right crankcase cover 55 coated crankcases 21, and coated bent axle 23 from the outstanding position of right bearing 33, in right crankcase cover 55, be formed with oil pump containing room 61, drive the oil pump actuation gear 63 of oil pump 60 to engage with actuation gear 35, when along axially the observing of bent axle 23, this oil pump actuation gear 63 and centrifugal oil filter 34 overlapping configuration, so can utilize idle space (effectively utilizing space) to guarantee the capacity of centrifugal oil filter 34.
In the internal-combustion engine 20 of present embodiment, centrifugal oil filter 34 by right bearing 33 and actuation gear 35 along being installed on bent axle 23 under the state of the axial compression of bent axle 23, can centrifugal oil filter 34 be installed by simple method, can seek the efficient activity of installation exercise.In addition, the dismounting of centrifugal oil filter 34 is easy, can carry out efficiently the operation such as clean grade of centrifugal oil filter 34.
In addition, because centrifugal oil filter 34 is made up of the first disc plate 82, the second disc plate 84 and axle sleeve 85, there is the structure that just can guarantee sealing without specially welding etc., can guarantee sealing by easy structure, can suppress manufacture cost.
Above each mode of execution of the present utility model is illustrated, but the utility model is not limited to above-mentioned mode of execution, in the scope that departs from purport of the present utility model, can gives various changes.
For example, in the above-described embodiment, internal-combustion engine 20 erects the structure of setting upward for cylinder portion 22 upper lateral part from crankcase 21, but also can be made as the horizontal air cylinder structure that cylinder portion 22 forwards gives prominence to from crankcase 21.
Claims (9)
1. an internal-combustion engine, comprising:
Crankcase (21);
Bent axle (23), it can be supported on the bearing (33) being located in described crankcase (21) rotatably, and is housed in described crankcase (21);
Actuation gear (35), its be arranged on described bent axle (23) from the outstanding position of described bearing (33), transmit the driving force of described bent axle (23);
Described internal-combustion engine is characterised in that,
Discoid centrifugal oil filter (34) is installed on described bent axle (23) between described bearing (33) and described actuation gear (35).
2. internal-combustion engine as claimed in claim 1, is characterized in that,
Described centrifugal oil filter (34) extend to the driven gear (37) of described actuation gear (35) engagement, with described crankcase (21) axially go up with the space between this driven gear (37) opposed wall portion (21R) at described bent axle (23), and, when along axially the observing of described bent axle (23), described centrifugal oil filter (34) and described driven gear (37) overlapping configuration.
3. internal-combustion engine as claimed in claim 1, is characterized in that,
Also comprise crankcase cover (55), the side of the coated described crankcase (21) of this crankcase cover (55), and coated described bent axle (23) from the outstanding position of described bearing (33),
On described crankcase cover (55), be formed with the containing room (61) of accommodating oil pump (60),
Drive the oil pump actuation gear (63) of described oil pump (60) to engage with described actuation gear (35), when along axially the observing of described bent axle (23), this oil pump actuation gear (63) and described centrifugal oil filter (34) overlapping configuration.
4. internal-combustion engine as claimed in claim 2, is characterized in that,
Also comprise crankcase cover (55), the side of the coated described crankcase (21) of this crankcase cover (55), and coated described bent axle (23) from the outstanding position of described bearing (33),
On described crankcase cover (55), be formed with the containing room (61) of accommodating oil pump (60),
Drive the oil pump actuation gear (63) of described oil pump (60) to engage with described actuation gear (35), when along axially the observing of described bent axle (23), this oil pump actuation gear (63) and described centrifugal oil filter (34) overlapping configuration.
5. the internal-combustion engine as described in any one in claim 1～4, is characterized in that,
Described centrifugal oil filter (34) by described bearing (33) and described actuation gear (35) along being installed on described bent axle (23) under the state of the axial compression of described bent axle (23).
6. the internal-combustion engine as described in any one in claim 1～4, is characterized in that,
Described centrifugal oil filter (34) comprising:
The first disc plate (82), it is configured in described bearing (33) side, and central authorities are formed with through hole (80), and peripheral portion is formed with the reflex part (81) turning back to described through hole (80) side outside;
The second disc plate (84), it is configured in described actuation gear (35) side, central authorities are formed with through hole (83), and inner circumference edge portion is formed as the belleville spring shape staggering in the axial direction of described through hole (83) with periphery edge, its external diameter is set as less than the external diameter of described the first disc plate (82);
Axle sleeve (85), is embedded in described bent axle (23) outside it, and passes in described the first disc plate (82) and described the second disc plate (84) described through hole (80,83) separately;
Described axle sleeve (85) in the axially upper end by described bearing (33) side of described bent axle (23), be formed with the lip part (86) outstanding to the radial outside of described bent axle (23),
In the axially upper end by described actuation gear (35) side at described bent axle (23) of described axle sleeve (85), be formed with stepped part (87) in the circumferential whole region of described axle sleeve (85), this stepped part (87) is recessed to the radially inner side of described bent axle (23), and open to described actuation gear (35) side in the axially upper of described bent axle (23)
The inner circumference edge portion of described the first disc plate (82) axially goes up and described lip part (86) butt described bent axle (23),
Described the second disc plate (84) is configured to than more close described the first disc plate of its inner circumference edge portion (82) side with its periphery edge in the axial direction of described bent axle (23), and its periphery edge is entrenched in the inner side of the described reflex part (81) of described the first disc plate (82), its inner circumference edge portion by described actuation gear (35) to described the first disc plate (82) thruster press and with the state of described actuation gear (35) butt, be housed in the space being surrounded by described stepped part (87) and described actuation gear (35)
Described the second disc plate (84) is compressed axially going up of described bent axle (23) by being pushed by described actuation gear (35), and makes its inner circumference edge portion be resisted against described actuation gear (35) by elastic force.
7. internal-combustion engine as claimed in claim 5, is characterized in that,
Described centrifugal oil filter (34) comprising:
The first disc plate (82), it is configured in described bearing (33) side, and central authorities are formed with through hole (80), and peripheral portion is formed with the reflex part (81) turning back to described through hole (80) side outside;
The second disc plate (84), it is configured in described actuation gear (35) side, central authorities are formed with through hole (83), and inner circumference edge portion is formed as the belleville spring shape staggering in the axial direction of described through hole (83) with periphery edge, its external diameter is set as less than the external diameter of described the first disc plate (82);
Axle sleeve (85), is embedded in described bent axle (23) outside it, and passes in described the first disc plate (82) and described the second disc plate (84) described through hole (80,83) separately;
Described axle sleeve (85) in the axially upper end by described bearing (33) side of described bent axle (23), be formed with the lip part (86) outstanding to the radial outside of described bent axle (23),
In the axially upper end by described actuation gear (35) side at described bent axle (23) of described axle sleeve (85), be formed with stepped part (87) in the circumferential whole region of described axle sleeve (85), this stepped part (87) is recessed to the radially inner side of described bent axle (23), and open to described actuation gear (35) side in the axially upper of described bent axle (23)
The inner circumference edge portion of described the first disc plate (82) axially goes up and described lip part (86) butt described bent axle (23),
Described the second disc plate (84) is configured to than more close described the first disc plate of its inner circumference edge portion (82) side with its periphery edge in the axial direction of described bent axle (23), and its periphery edge is entrenched in the inner side of the described reflex part (81) of described the first disc plate (82), its inner circumference edge portion by described actuation gear (35) to described the first disc plate (82) thruster press and with the state of described actuation gear (35) butt, be housed in the space being surrounded by described stepped part (87) and described actuation gear (35)
Described the second disc plate (84) is compressed axially going up of described bent axle (23) by being pushed by described actuation gear (35), and makes its inner circumference edge portion be resisted against described actuation gear (35) by elastic force.
8. internal-combustion engine as claimed in claim 6, is characterized in that,
Described centrifugal oil filter (34) is configured to:
Described axle sleeve (85) is passed by described bent axle (23),
Described the first disc plate (82) is passed by described axle sleeve (85) in the mode of its inner circumference edge portion and described lip part (86) butt,
Described the second disc plate (84) is passed by described axle sleeve (85) than the state of more close described the first disc plate of its inner circumference edge portion (82) side with its periphery edge, and the periphery edge that makes described the second disc plate (84) is entrenched in the inner side of the reflex part (81) of described the first disc plate (82)
And described actuation gear (35) is passed by described bent axle (23), enter described the second disc plate (84) to described the first disc plate (82) thruster.
9. internal-combustion engine as claimed in claim 7, is characterized in that,
Described centrifugal oil filter (34) is configured to:
Described axle sleeve (85) is passed by described bent axle (23),
Described the first disc plate (82) is passed by described axle sleeve (85) in the mode of its inner circumference edge portion and described lip part (86) butt,
Described the second disc plate (84) is passed by described axle sleeve (85) than the state of more close described the first disc plate of its inner circumference edge portion (82) side with its periphery edge, and the periphery edge that makes described the second disc plate (84) is entrenched in the inner side of the reflex part (81) of described the first disc plate (82)
And described actuation gear (35) is passed by described bent axle (23), enter described the second disc plate (84) to described the first disc plate (82) thruster.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-217280 | 2012-09-28 | ||
| JP2012217280A JP5923020B2 (en) | 2012-09-28 | 2012-09-28 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685341U true CN203685341U (en) | 2014-07-02 |
Family
ID=50746021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320596245.6U Expired - Fee Related CN203685341U (en) | 2012-09-28 | 2013-09-26 | Internal-combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5923020B2 (en) |
| CN (1) | CN203685341U (en) |
| BR (1) | BR102013025004A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9506382B2 (en) | 2015-03-30 | 2016-11-29 | Caterpillar Inc. | Variable valve actuator |
| JP2017115751A (en) | 2015-12-25 | 2017-06-29 | ヤマハ発動機株式会社 | Saddle-riding type vehicle |
| AT521603B1 (en) * | 2018-12-03 | 2020-03-15 | Avl List Gmbh | Fast rotating shaft with dirt trap |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588884Y2 (en) * | 1979-08-13 | 1983-02-17 | 本田技研工業株式会社 | Centrifugal oil filter for engines |
| JPS5660825A (en) * | 1979-10-23 | 1981-05-26 | Yamaha Motor Co Ltd | Revolution take-out device from engine |
| JPS5943607U (en) * | 1982-09-14 | 1984-03-22 | スズキ株式会社 | Centrifugal filter device for small engines |
| JPS6140408A (en) * | 1984-07-31 | 1986-02-26 | Suzuki Motor Co Ltd | Centrifugal oil filter |
| JPH0349310U (en) * | 1989-09-20 | 1991-05-14 | ||
| JP2779695B2 (en) * | 1990-07-19 | 1998-07-23 | 本田技研工業株式会社 | Oil supply device for 4-cycle engine |
| US7175771B2 (en) * | 2003-12-19 | 2007-02-13 | Honeywell International, Inc. | Multi-stage centrifugal debris trap |
| JP2010151003A (en) * | 2008-12-25 | 2010-07-08 | Honda Motor Co Ltd | Centrifugal separator for small engine |
-
2012
- 2012-09-28 JP JP2012217280A patent/JP5923020B2/en active Active
-
2013
- 2013-09-26 CN CN201320596245.6U patent/CN203685341U/en not_active Expired - Fee Related
- 2013-09-27 BR BRBR102013025004-0A patent/BR102013025004A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP5923020B2 (en) | 2016-05-24 |
| BR102013025004A2 (en) | 2015-09-01 |
| JP2014070568A (en) | 2014-04-21 |
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