WO2009122826A1 - Oil path structure - Google Patents
Oil path structure Download PDFInfo
- Publication number
- WO2009122826A1 WO2009122826A1 PCT/JP2009/053420 JP2009053420W WO2009122826A1 WO 2009122826 A1 WO2009122826 A1 WO 2009122826A1 JP 2009053420 W JP2009053420 W JP 2009053420W WO 2009122826 A1 WO2009122826 A1 WO 2009122826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- oil passage
- downstream
- upstream
- passage
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/12—Gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/20—Amount of lubricant
- F16N2270/22—Amount of lubricant with restrictions
Definitions
- a first coupled member having a first joint surface and a second coupled member having a second joint surface are coupled to each other with a gasket interposed between the first and second joint surfaces.
- An upstream oil passage member that opens to the joint surface is provided in the first coupled member, and opens to one or the other of the first and second joint surfaces and communicates with the upstream oil passage and the first downstream oil passage and the first oil passage member.
- the two downstream oil passages are configured so that the distance between the second downstream oil passage and the upstream oil passage is larger than the distance between the first downstream oil passage and the upstream oil passage, and the first and second coupled members And an oil passage structure in which at least one of the first and second downstream oil passages is provided in the second coupled member.
- crankcase side oil passage provided in the crankcase is opened to the connecting surface of the crankcase to the cylinder block at the approximate center of the two stud bolts connecting the crankcase and the cylinder block.
- the oil passages are configured such that oil guided from the oil passages is diverted to the both stud bolts by an oil groove provided on the cylinder block side, and the oils are respectively guided to the annular oil passages formed between the stud bolts and the cylinder block.
- the structure is known from US Pat. Japanese Patent No. 3797501
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide an oil passage structure capable of evenly distributing oil to two downstream oil passages while increasing the degree of freedom in layout. .
- a first coupled member having a first joint surface and a second coupled member having a second joint surface sandwich a gasket between the first and second joint surfaces.
- an upstream oil passage that is coupled to each other and that opens to the first joint surface is provided in the first coupled member, and that opens to one or the other of the first and second joint surfaces and communicates with the upstream oil passage.
- the first downstream oil passage and the second downstream oil passage have a distance between the second downstream oil passage and the upstream oil passage larger than a distance between the first downstream oil passage and the upstream oil passage;
- the first joint surface has an upstream side Communicating the oil passage A first oil groove is provided, and a second oil groove is provided on the second joint surface so that at least a part thereof faces the first oil groove, and the first and second downstream oil paths from the upstream oil path.
- a communication hole is provided in the gasket for disposing a downstream end along the flow direction upstream of the first downstream oil passage in the flow direction of oil toward the first port and communicating between the first and second oil grooves.
- the first downstream oil passage is opened to one of the first and second oil grooves, and the second downstream oil passage is opened to the other of the first and second oil grooves.
- the oil from the upstream oil passage flows through the first oil groove and flows to the first downstream oil passage or the second downstream oil passage side, and the communication hole of the gasket is provided.
- the second oil groove and circulates in the second oil groove to the second downstream oil passage or the first downstream oil passage, and the oil flow direction does not change greatly.
- the oil flow rate of one of the first downstream oil passage and the second downstream oil passage is not significantly smaller than the other, and the oil is evenly distributed to the first downstream oil passage and the second downstream oil passage. Since it becomes easy, the freedom degree of a layout increases.
- FIG. 1 is a right side view of the internal combustion engine of the first embodiment.
- (First embodiment) 2 is a cross-sectional view taken along line 2-2 of FIG.
- FIG. 3 is an enlarged view of a main part of FIG.
- (First embodiment) 4 is a cross-sectional view taken along line 4-4 of FIG.
- (First embodiment) 5 is a cross-sectional view taken along line 5-5 of FIG.
- FIG. 6 is a cross-sectional view corresponding to FIG. 4 of the second embodiment.
- crankcase halves 28, 78 which are second coupled members, gasket 29, clutch cover 46, which is the first coupled member, third oil passage 55, which is an upstream oil passage.
- Fifth oil passage 56 as a first downstream oil passage
- Sixth oil passages 61 and 74 as second downstream oil passages ...
- First joining surfaces 62 and 76 ... second joining Surfaces 68, 82 ... first oil grooves 69, 83 ... second oil grooves 70 ... second communication holes 70a, 85a that are communication holes ... downstream ends 75 of the communication holes ... first Second member 79 ... upstream oil passage 80 ... first downstream oil passage 81 ... second downstream oil passage 85 ... communication hole
- 1 to 5 show a first embodiment of the present invention.
- an engine body 11 of an internal combustion engine mounted on a motorcycle includes a crankcase 13 for rotatably supporting a crankshaft 12 having an axis extending in the width direction of the motorcycle, and a front side of the crankcase 13.
- a cylinder block 14 that is coupled to the upper part and rises forward is provided, a cylinder head 15 that is coupled to the upper part of the cylinder block 14, and a head cover 16 that is coupled to the cylinder head 15.
- crankcase 13 includes a pair of crankcase halves 13a and 13b which are coupled to each other by a mating surface 10 orthogonal to the axis of the crankshaft 12, and the crankshaft 12 is composed of both crankcase halves 13a. 13b are rotatably supported via bearing members 17 and 18, respectively.
- a balancer 19 having an axis parallel to the crankshaft 12 is rotatably supported on the crankcase 13 in front of the crankshaft 12 (to the right in FIG. 1). Is transmitted via the gear mechanism 20.
- the gear mechanism 20 includes a drive gear 21 fixed to the crankshaft 12 on the outer side of the left crankcase half 13b and the outer side of the crankcase half 13b.
- a driven gear 22 is provided at one end of the balancer 19 and meshes with the drive gear 21.
- a water pump 23 is connected to the other end of the balancer 19.
- a plurality of stages of gear trains are alternatively provided between the main shaft 25 and the counter shaft 26 having an axis parallel to the crankshaft 12 in the crankcase 13 behind the crankshaft 12.
- a gear speed change mechanism 27 provided to be established is accommodated.
- a clutch cover 29 is fastened to the right crankcase half 13a of both the crankcase halves 13a and 13b via a gasket 28, and a clutch is accommodated between the crankcase half 13a and the clutch cover 29.
- a chamber 30 is formed.
- the clutch housing chamber 30 houses a clutch (not shown) provided between the main shaft 25 and the crankshaft 12 and arranged coaxially with the main shaft 25 and an oil pump 31.
- the oil pump 31 is of a trochoid type in which an inner rotor 35 and an outer rotor 36 are accommodated in a pump housing 32, and is disposed in the lower part of the clutch accommodating chamber.
- the pump housing 32 includes a bowl-shaped housing main body 33 and a cover plate 34 that closes the opening of the housing main body 33.
- the pump housing 32 is sandwiched between the crankcase half 13 a and the housing main body 33. Coupled to the crankcase half 13a.
- the inner rotor 35 is fixed to a pump shaft 37 rotatably supported on the pump housing 31, and a driven gear 38 is fixed to a projecting portion of the pump shaft 37 from the pump housing 32.
- the driven gear 38 is engaged with a drive gear 39 fixed to the crankshaft 12, and rotational power from the crankshaft 12 is input to the pump shaft 37.
- an oil storage chamber 40 is formed in the lower portion of the crankcase 13, and the oil in the oil storage chamber 40 is transferred by an oil pump 31 via an oil strainer 41 mounted on the lower portion of the crankcase half 13a.
- a drive gear 21 of a gear mechanism 20 for transmitting rotational power from the crankshaft 12 to the balancer 19 side is disposed above the oil storage chamber 40, and the rotational wind pressure generated by the rotation of the drive gear 21.
- the left crankcase half 13b has a protrusion 42 disposed between the oil storage chamber 40 and the drive gear 21.
- the protrusion 42 is formed in an arc shape so as to surround the drive gear 21 from below.
- the oil discharged from the oil pump 31 is guided to an oil filter 43 attached to the front surface of the right crankcase half 13a through a first oil passage 44 provided in the crankcase half 13a.
- the oil purified by the filter 43 is guided to a third oil passage 46 provided in the clutch cover 29 through a second oil passage 45 provided in the crankcase half 13a.
- the third oil passage 46 is provided in the clutch cover 29 so as to extend in the vertical direction, and an intermediate portion of the third oil passage 46 communicates with a fourth oil passage 47 provided coaxially with the crankshaft 12.
- the oil introduced into the fourth oil passage 47 is used for lubricating the needle bearing 50 interposed between the connecting rod large end portion 48 and the crank pin 49.
- the upper portion of the third oil passage 46 is one of a plurality of through bolts 51, 51... That couple the cylinder head 15 sandwiching the cylinder block 14 between the crankcase 13 and the crankcase 13.
- a fifth oil passage that communicates with the annular oil passage 52 formed between the cylinder block 14 and the cylinder head 15 via the first orifice 53 and guides oil to the main shaft 25 of the gear transmission mechanism 27.
- 55 and a sixth oil passage 56 that guides oil to the countershaft 26 of the gear transmission mechanism 27 through a second orifice 54.
- the sixth oil passage 56 is arranged such that the distance from the third oil passage 46 is larger than the distance between the fifth oil passage 55 and the third oil passage 46.
- the cylinder head 15 and the head cover 16 accommodate a valve gear 59 having a pair of camshafts 57 and 58, and the annular oil passage 52 guides oil to the valve gear 59 side.
- a seventh oil passage 60 provided in the cylinder head 15 communicates with the seventh oil passage 60.
- the communication structure between the third oil passage 46 and the fifth and sixth oil passages 55 and 56 is configured according to the present invention, and the clutch cover 29 corresponds to the first coupled member of the present invention.
- the crankcase half 13a corresponds to the second coupled member of the present invention
- the third oil passage 46 corresponds to the upstream oil passage of the present invention
- the fifth oil passage 55 corresponds to the first downstream oil of the present invention.
- the sixth oil passage 56 corresponds to the second downstream oil passage of the present invention.
- the clutch cover 29 is provided with a first joint surface 61 that contacts the gasket 28, and the crankcase half 13a is provided with a second joint surface 62 that contacts the gasket 28 from the opposite side of the clutch cover 29.
- the third oil passage 46 is open to the first joint surface 61.
- the fifth and sixth oil passages 55 and 56 are provided in one or the other of the clutch cover 29 and the crankcase half 13a so that at least one is provided in the crankcase half 13a.
- both the fifth and sixth oil passages 55 and 56 are provided in the crankcase half 13a.
- the first joint surface 61 is provided with a first recess 63 that opens the third oil passage 46, and a second recess 64 that is disposed at a distance from the first recess 63 toward the fifth oil passage 55,
- the crankcase half 13 a is provided with a third recess 65 corresponding to the first and second recesses 63 and 64.
- the gasket 28 is provided with a first communication hole 66 that allows the first recess 63 to communicate with the third recess 65, and the third recess 65 and the annular oil passage 52 are connected to each other in the first crankcase half 13 a.
- a first orifice 53 is interposed in the middle of the oil passage 60.
- a second orifice 54 is sandwiched between the clutch cover 29 and the crankcase half 13a so as to be interposed between the third recess 65 and the second recess 64, and the second recess 64 includes the second orifice 54, the second The third oil passage 46 is communicated with the third recess 65, the first communication hole 66, and the first recess 63.
- the first joint surface 61 is provided with a first oil groove 68 extending through one end of the second recess 64 to a portion corresponding to the sixth oil passage 56, and the second joint surface 62.
- the fifth oil passage 55 is provided in the crankcase half 13 a so as to communicate with the second oil groove 69, and the sixth oil passage 56 is connected to the first oil groove via the third communication hole 71 provided in the gasket 28. 68.
- the second communication hole 70 is in the flow direction 72 of oil in the flow direction 72 of oil from the third oil passage 46 toward the fifth and sixth oil passages 55, 56 and upstream of the fifth oil passage 55.
- the downstream end 70a is disposed on the gasket 28 so as to communicate with the first and second oil grooves 68 and 69.
- Oil from the third oil passage 46 reaches the second recess 64 via the first recess 63, the first communication hole 66, the third recess 65, and the orifice 54. From the second recess 64, the gas flows through the first oil groove 68 to the sixth oil passage 56 and enters the second oil groove 69 through the second communication hole 70 of the gasket 28. Since the oil flows in the fifth oil passage 55 and the oil flow direction does not change greatly, the amount of oil in one of the fifth and sixth oil passages 55 and 56 is significantly smaller than the other. In other words, it becomes easy to evenly distribute the oil to the fifth and sixth oil passages 55 and 56, and the degree of freedom in layout increases.
- FIG. 6 shows a second embodiment of the present invention.
- a first coupled member 75 having a first joining surface 74 and a second coupled member 77 having a second joining surface 76 are both joined surfaces 74. , 76 are connected to each other with a gasket 78 interposed therebetween, and an upstream oil passage 79 that opens to the first joint surface 74 is provided in the first joined member 75, and opens to the first joint surface 74 to open the upstream side.
- a first downstream oil passage 80 communicating with the oil passage 79 is provided in the first coupled member 75, and a distance between the upstream oil passage 79 and a distance between the first downstream oil passage 80 and the upstream oil passage 79 is set.
- a larger second downstream oil passage 81 is provided in the second coupled member 77 so as to open to the second joint surface 76.
- the first joint surface 74 is provided with a first oil groove 82 having an upstream oil passage 79 opened, and the second joint surface 76 is at least partially facing the first oil groove 82.
- An oil groove 83 is provided, and the upstream side of the first upstream oil passage 80 in the oil flow direction 84 from the upstream oil passage 79 toward the first and second downstream oil passages 80, 81.
- a communication hole 85 is provided in the gasket 78 so as to communicate with the first and second oil grooves 82 and 83 by arranging a downstream end 85 a along the flow direction 84, and the first downstream oil passage 80 is formed in the first oil groove 82.
- the second downstream oil passage 81 is opened to the second oil groove 83.
- oil from the upstream oil passage 79 flows through the first oil groove 82 and flows into the first downstream oil passage 80 and enters the second oil groove 83 through the communication hole 85 of the gasket 78. Since the oil flows in the second oil groove 83 toward the second downstream oil passage 81 and the oil flow direction does not change significantly, the oil in one of the first and second downstream oil passages 80 and 81 is not changed. The flow rate is not significantly reduced compared to the other, and the oil is easily evenly distributed to the first and second downstream oil passages 80 and 81, so that the degree of freedom in layout increases.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
28,78・・・ガスケット
29・・・第1被結合部材であるクラッチカバー
46・・・上流側オイル通路である第3オイル通路
55・・・第1下流側オイル通路である第5オイル通路
56・・・第2下流側オイル通路である第6オイル通路
61,74・・・第1接合面
62,76・・・第2接合面
68,82・・・第1オイル溝
69,83・・・第2オイル溝
70・・・連通孔である第2連通孔
70a,85a・・・連通孔の下流端
75・・・第1被結合部材
77・・・第2被結合部材
79・・・上流側オイル通路
80・・・第1下流側オイル通路
81・・・第2下流側オイル通路
85・・・連通孔 13a,
Claims (1)
- 第1接合面(61,74)を有する第1被結合部材(29,75)と、第2接合面(62,76)を有する第2被結合部材(13a,77)とが第1および第2接合面(61,74;62,76)間にガスケット(28,78)を挟んで相互に結合され、第1接合面(61,74)に開口する上流側オイル通路(46,79)が第1被結合部材(29,75)に設けられ、第1および第2接合面(61,74;62,76)の一方または他方に開口して前記上流側オイル通路(46,79)に通じる第1下流側オイル通路(55,80)および第2下流側オイル通路(56,81)が、第2下流側オイル通路(56,81)および上流側オイル通路(46,79)間の距離を第1下流側オイル通路(55,80)および上流側オイル通路(46,79)間の距離よりも大きくして、第1および第2下流側オイル通路(55,80;56,81)の少なくとも一方が第2被結合部材(13a,77)に設けられるようにして第1および第2被結合部材(29,75;13a,77)の一方または他方に設けられるオイル通路構造において、第1接合面(61,74)には、上流側オイル通路(46,79)を連通させた第1オイル溝(68,82)が設けられ、第2接合面(62,76)には少なくとも一部を第1オイル溝(68,82)に向い合わせる第2オイル溝(69,83)が設けられ、前記上流側オイル通路(46,79)から前記第1および第2下流側オイル通路(55,80;56,81)に向けてのオイルの流通方向で前記第1下流側オイル通路(55,80)よりも上流側に前記流通方向に沿う下流端(70a,85a)を配置して第1および第2オイル溝(68,82;69,83)間を連通する連通孔(70,85)が前記ガスケット(28,78)に設けられ、第1下流側オイル通路(55,80)が第1および第2オイル溝(68,82;69,83)の一方に開口され、第2下流側オイル通路(56,81)が第1および第2オイル溝(68,82;69,83)の他方に開口されることを特徴とするオイル通路構造。 A first coupled member (29, 75) having a first joining surface (61, 74) and a second coupled member (13a, 77) having a second joining surface (62, 76) are first and first. An upstream oil passage (46, 79) that is joined to each other with a gasket (28, 78) sandwiched between two joining surfaces (61, 74; 62, 76) and opens to the first joining surface (61, 74). It is provided in the first coupled member (29, 75), opens to one or the other of the first and second joint surfaces (61, 74; 62, 76), and communicates with the upstream oil passage (46, 79). The first downstream oil passage (55, 80) and the second downstream oil passage (56, 81) have a distance between the second downstream oil passage (56, 81) and the upstream oil passage (46, 79). The first downstream oil passage (55, 80) and the upstream oil passage ( 6, 79) so that at least one of the first and second downstream oil passages (55, 80; 56, 81) is provided in the second coupled member (13a, 77). In the oil passage structure provided in one or the other of the first and second coupled members (29, 75; 13a, 77), the upstream oil passage (46, 79) is provided on the first joint surface (61, 74). ) Communicated with each other, and a second oil groove (68, 82) that at least partially faces the first oil groove (68, 82) is provided on the second joint surface (62, 76). 69, 83), and the first oil flow direction from the upstream oil passage (46, 79) toward the first and second downstream oil passages (55, 80; 56, 81). Downstream oil passage (55, 80) Further, the downstream end (70a, 85a) along the flow direction is arranged on the upstream side, and the communication hole (70, 85) communicating between the first and second oil grooves (68, 82; 69, 83) is provided in the gasket. (28, 78), the first downstream oil passage (55, 80) is opened in one of the first and second oil grooves (68, 82; 69, 83), and the second downstream oil passage ( 56, 81) is opened to the other of the first and second oil grooves (68, 82; 69, 83).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801113396A CN101981280B (en) | 2008-03-31 | 2009-02-25 | Oil path structure |
BRPI0909298-6A BRPI0909298B1 (en) | 2008-03-31 | 2009-02-25 | structure for oil passage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-093954 | 2008-03-31 | ||
JP2008093954A JP4954133B2 (en) | 2008-03-31 | 2008-03-31 | Oil passage structure |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009122826A1 true WO2009122826A1 (en) | 2009-10-08 |
Family
ID=41135222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/053420 WO2009122826A1 (en) | 2008-03-31 | 2009-02-25 | Oil path structure |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP4954133B2 (en) |
CN (1) | CN101981280B (en) |
AR (1) | AR070537A1 (en) |
BR (1) | BRPI0909298B1 (en) |
WO (1) | WO2009122826A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3187707A1 (en) * | 2015-12-28 | 2017-07-05 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine and straddled vehicle having the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5998832B2 (en) * | 2012-10-15 | 2016-09-28 | スズキ株式会社 | Internal combustion engine |
JP6056090B2 (en) * | 2013-02-28 | 2017-01-11 | 本田技研工業株式会社 | Lubricating oil supply structure in vehicle internal combustion engine |
WO2015125390A1 (en) * | 2014-02-19 | 2015-08-27 | 本田技研工業株式会社 | Drive force distribution device for automobile |
WO2016052396A1 (en) * | 2014-09-29 | 2016-04-07 | 本田技研工業株式会社 | Lubricating oil passage structure for internal combustion engine |
CN104564784B (en) * | 2014-12-26 | 2018-01-19 | 珠海格力电器股份有限公司 | Pressure balance structure for oil tank and air suction port of centrifugal compressor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61137831U (en) * | 1985-02-15 | 1986-08-27 | ||
JP2004150377A (en) * | 2002-10-31 | 2004-05-27 | Toyota Motor Corp | Fluid passage structure in internal combustion engine |
JP3797501B2 (en) * | 1996-12-27 | 2006-07-19 | 本田技研工業株式会社 | Oiling device for valve mechanism |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8429709D0 (en) * | 1984-11-23 | 1985-01-03 | Alcan Int Ltd | Halogen-containing organic compounds |
JP4169414B2 (en) * | 1999-02-02 | 2008-10-22 | 本田技研工業株式会社 | Crankshaft lubricating oil supply passage structure |
CN2516696Y (en) * | 2001-12-04 | 2002-10-16 | 杭州摩托车总厂 | Lubricating mechanism for engine of motorcycle |
JP3954941B2 (en) * | 2002-09-11 | 2007-08-08 | 本田技研工業株式会社 | Oil passage structure in the engine |
-
2008
- 2008-03-31 JP JP2008093954A patent/JP4954133B2/en not_active Expired - Fee Related
-
2009
- 2009-02-25 WO PCT/JP2009/053420 patent/WO2009122826A1/en active Application Filing
- 2009-02-25 CN CN2009801113396A patent/CN101981280B/en not_active Expired - Fee Related
- 2009-02-25 BR BRPI0909298-6A patent/BRPI0909298B1/en not_active IP Right Cessation
- 2009-02-27 AR ARP090100691A patent/AR070537A1/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61137831U (en) * | 1985-02-15 | 1986-08-27 | ||
JP3797501B2 (en) * | 1996-12-27 | 2006-07-19 | 本田技研工業株式会社 | Oiling device for valve mechanism |
JP2004150377A (en) * | 2002-10-31 | 2004-05-27 | Toyota Motor Corp | Fluid passage structure in internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3187707A1 (en) * | 2015-12-28 | 2017-07-05 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine and straddled vehicle having the same |
Also Published As
Publication number | Publication date |
---|---|
JP4954133B2 (en) | 2012-06-13 |
AR070537A1 (en) | 2010-04-14 |
BRPI0909298B1 (en) | 2021-01-26 |
BRPI0909298A2 (en) | 2020-06-23 |
CN101981280B (en) | 2012-07-18 |
CN101981280A (en) | 2011-02-23 |
JP2009243438A (en) | 2009-10-22 |
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