• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:ES2539467T9
    申请号:ES12174910.5T
    申请日:2012-07-04
    公开日:2015-07-23
    发明作者:Yoshikatsu Akita；Tetsuji Takeda
    申请人:Suzuki Motor Co Ltd；
    IPC主号:
    专利说明:

    Description
    BACKGROUND OF THE INVENTION
    [Field of the invention]
    The present invention relates to an exhaust pipe structure of an engine in a vehicle such as a motorcycle.
    [Description of related technique]
    A vehicle such as a motorcycle is provided with an exhaust emission control device in which an exhaust gas discharged from an engine is purified to be discharged into the atmosphere in an innocuous state. In relation to one that uses a catalyst as the exhaust emission control device mentioned above, in one described in Japanese Open Patent Publication No. 20120-083301 a catalyst unit is arranged in the middle of an exhaust pipe that It has one end of it connected to a motor and it has the other end of it connected to a silencer.
    As in the previous example, in the case where a catalyst is provided in an exhaust pipe 1 as illustrated in Fig. 8A and Fig. 8B, for example, a catalyst unit 2, on the water side above the exhaust thereof, it is connected to the exhaust pipe 1 through a conical tube 3 which is a connecting element, and the catalyst unit 2, on the downstream exhaust side thereof, is connected to the exhaust pipe 1 through a conical tube 4 which is a connecting element, respectively. Also, in catalyst unit 2, a catalyst 6 is mounted in a housing 5.
    However, conical tubes 3 and 4 have been required to ensure a certain length according to the difference in diameter between the exhaust pipe 1 and the catalyst unit 2. As a result, the length 1 of a linear part has been lengthened In general, including catalyst unit 2, and a significant restriction has had to be adopted in the installation of the exhaust pipe 1. For this reason, there have been problems that have limited the degree of freedom in the design of the exhaust pipe 1, which includes the catalyst unit 2, and the like.
    US Patent 4,925,634 A describes a catalytic converter for use with an internal combustion chamber. The catalytic converter comprises halves of housings that are divided among themselves in the direction of the length of the catalytic converter. The catalytic converter includes a structure part that has a generally cylindrical wall. The part of the structure is conical at opposite ends thereof to end in a pair of connecting parts whose diameter is smaller than the part of the structure. A honeycomb catalyst support that is housed in a retention member is placed in the parts of the housing halves structure. However, due to the cylindrical housing of the catalyst the degree of freedom in the design of the exhaust pipe including the catalyst unit is limited. JP 2000-234514 A describes a catalyst unit that has a rather complicated shape. The exhaust pipe is connected to the front of the catalyst unit and has a straight line shape. However, also in this catalyst unit the degree of freedom is limited. JP 2010-269725 A describes a catalyst unit with a substantially rectangular shape. However, in this catalyst unit the degree of freedom is also limited. EP 1 643 095 A1 describes an exhaust mounting structure for a motorcycle with a catalyst unit having a substantially cylindrical shape. However, in this catalyst unit the degree of freedom is also limited.
    SUMMARY OF THE INVENTION
    In consideration of such circumstances, the present invention aims to provide an exhaust pipe structure of an internal combustion engine capable of effectively improving the degree of freedom in the design of an exhaust pipe, and the like.
    An exhaust pipe structure of an internal combustion engine of the present invention that includes: an engine in which a cylinder arranged substantially horizontally is provided such that it is projected on a vehicle body frame; an exhaust pipe through which a combustion gas is discharged from a combustion chamber into a cylinder head in the engine; and a catalyst disposed in the middle of the exhaust pipe, the exhaust pipe structure includes: a catalyst holding part that holds an end part of the catalyst, in which the catalyst holding part is formed to be divided by a plane which passes through a central axis of the exhaust pipe.
    Furthermore, in the exhaust pipe structure of the internal combustion engine of the present invention, the catalyst holding part holds the catalyst on the upstream side of the exhaust.
    Furthermore, in the exhaust pipe structure of the internal combustion engine of the present invention, the part that supports the catalyst is formed to bend from a side immediately upstream of the catalyst.
    Furthermore, in the exhaust pipe structure of the internal combustion engine of the present invention, the catalyst holding part is formed such that a cross-sectional area thereof gradually increases towards the catalyst.
    Furthermore, in the exhaust pipe structure of the internal combustion engine of the present invention, the catalyst holding part is arranged under the engine.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Fig. 1 is a side view illustrating a general structure of a motorcycle according to the present invention; Fig. 2 is a side view illustrating a state in which a power unit according to the present invention is mounted on a vehicle; Fig. 3 is a bottom view illustrating the state in which the power unit according to the present invention is mounted on the vehicle; Fig. 4 is a front view of the power unit according to the present invention; Fig. 5 is a bottom view of the power unit according to the present invention; Fig. 6 is a perspective view of an essential part of an exhaust pipe structure according to the present invention; Fig. 7A and Fig. 7B illustrate the essential part of the exhaust pipe structure according to the present invention, in which Fig. 7A is a cross-sectional view along a longitudinal direction and Fig. 7B is a cross-sectional view taken along a line II in Fig. 7A; and Fig. 8A and Fig. 8B illustrate an essential part of a conventional exhaust pipe structure, in which Fig. 8A is a perspective view and Fig. 8B is a cross-sectional view taken along a line II-II in Fig. 8A.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    Next, a preferred embodiment will be explained in an exhaust pipe structure of an internal combustion engine in accordance with the present invention based on the drawings.
    Fig. 1 is a side view of a motorcycle according to the present invention. First, a general structure of the motorcycle will be explained with Fig. 1. Also, in the drawings that will be used in the following explanation including Fig. 1, the front part of a vehicle is indicated by an arrow Fr and the rear part of the vehicle is indicated by an arrow Rr, and in addition the right side part of the vehicle is indicated by an arrow R and the left side part of the vehicle is indicated by an arrow L as necessary.
    A vehicle 100 has a vehicle body structure composed of a plurality of vehicle body structures made of steel or aluminum alloy, and is structured through the assembly of various parts in the vehicle body structures. Likewise, as an example of the structure of the body of the vehicle, reference is made in Fig. 2 and Fig. 3. A downcomer 101 that is one of the structures of the body of the vehicle has a front end thereof attached to a steering tube (not illustrated) and extends substantially downward from the steering tube, and in the vicinity of a lower end portion of the downcomer 101, a pair of elements of the lower right and left chassis 102 are connected. These elements of the lower chassis 102 extend substantially rearward. On a rear end portion of the lower tube 101, a bridge tube 103 is fixed which extends in the right and left direction, and right and left the two ends of the upper bridge pipe 103, a pair of elements of the rear chassis Right and left 104 are fixed as one of the vehicle body structures, and the elements of the rear chassis 104 each obliquely extend substantially backward and upward.
    The steering tube described above rotatably supports a front fork 105, and the front fork 105 has a handlebar 106 fixed to an upper end thereof and has a front wheel 107 rotatably supported on the side of the lower end thereof.
    In addition, on the rear side of the bridge pipe 103, a tilting type power unit 10 is included which includes a motor 11 so that it is interposed between the pair of rear chassis elements 104. The power unit mentioned above It is made by unifying a cylinder assembly 12 of the engine 11, a crankcase 13, a power transmission device 14 containing a continuously variable transmission which is carried out using a belt and a pulley, and so on, and is supported oscillating in the upward and downward direction about an oscillation axis 108 which is a tilting axis on the side of the vehicle body frame formed by a pair of tensioners 15 extending forward from the crankcase 13. In In this embodiment, two tilting support points are provided, that is, a pair of supports 109 that support the oscillation axis 108 extend backward in the rear side of the bridge tube 103 with a space between them in the right and left directions, and these supports 109 are pivotally supported around a tilting shaft 108A. Also, the right side of the engine 11 is covered with an engine cover 16 as illustrated in Fig. 2.
    The power unit 10 rotatably supports a rear wheel 110 (see Fig. 1) through the power transmission device 14 on the rear side of the vehicle. For this reason, the power unit 10 and the rear wheel 110 rotate integrally around the oscillation axis 108, in other words, the power unit 10 as a whole functions as a swing arm. Also, the axle side of the rear wheel 110 and the rear frames 104 are coupled to each other by a shock absorber (not shown).
    In addition, as illustrated in Fig. 1, a seat 111 is provided for a pilot to feel above the power unit 10. A footrest 112 in which the pilot sitting in the seat 111 puts his feet it is supported on the lower frames 102 (Fig. 2 and Fig. 3) through a footrest structure that is not illustrated. Also, the footrest 112 is integrally formed with a body cover for the leg that constitutes an aspect of the vehicle. In addition, between the power unit 10 and the seat 111, a luggage box 113 (whose detailed illustration is omitted) is provided which is opened / closed by the seat 111 and which is formed as a space for the accommodation of objects and the like .
    As the appearance of the vehicle, various vehicle body covers are supported and fixed in appropriate places of the vehicle body frames and the like. A front leg guard 114 covers the side of the front surface of the vehicle and has flashing lights and the like mounted thereon, and continues towards the footrest 112 described above integrally. A rear chassis cover 115 covers this place from the bottom of the seat 111 to the rear side of the vehicle and has turn signals and brake lights mounted thereon. The space above the rear wheel 110 is covered with a rear fender 116.
    The power unit 10 includes the engine 11 and the transmission device 14 as described above, and is of the type in which the engine 11 and the transmission device 14 are integrated. The power unit 10 has an alignment structure in which, as illustrated in Fig. 2 and in Fig. 3, the cylinder assembly 12 of the engine 11, the crankcase 13, and the transmission device 14 are aligned in order from the front side of the vehicle in a state where the power unit 10 is mounted on the vehicle 100. In the power unit 10, the single-cylinder air-cooled engine 11 is provided arranged so that it protrudes from the body structure of the vehicle, and is arranged so that the axis of the engine cylinder 11 becomes substantially horizontal along the front and rear direction of the vehicle in this example.
    Next, the power unit 10 will be explained in greater depth with reference also to Fig. 4 and Fig. 5. The power unit 10 has an air filter (whose detailed illustration is omitted) mounted on the side of the upper surface of the power transmission device 14 placed on the rear side of the vehicle, and has an accelerator body 17 attached to the front part above the air filter. An intake tube 18 extends forward from the throttle body 17, and the mixed air is supplied to the engine 11 through the upper intake tube 18. Here, the cylinder assembly 12 of the engine 11 is manufactured such that a cylinder head cover 12A, a cylinder head 12B, and a cylinder 12C are sequentially attached to the side of the crankcase 13. The intake tube 18, as illustrated in Fig. 4, communicates with an intake port in the cylinder head 12B, and through an intake passage, purified air is supplied to the intake port in the cylinder head 12B from the air filter.
    In an engine exhaust system 11, on the lower surface side of the cylinder head 12B, an exhaust port is formed slightly to the left, and an exhaust pipe 19 connected to the aforementioned exhaust port extends towards back while curving. Also, the combustion gas is discharged into the exhaust pipe 19 from a combustion chamber in the cylinder head 12B. The exhaust pipe 19 is connected to a silencer 20 at the rear of the vehicle, and as illustrated in Fig. 2 through Fig. 5, a catalyst unit 21 is arranged in the center of the exhaust pipe 19. The catalyst unit 21, as illustrated in Fig. 5 and the like, is connected to the exhaust pipe 19 on the upstream side of the exhaust through a clamp member 22 which is a catalyst clamp, and It is connected to the exhaust pipe 19 on the downstream side of the exhaust through a fastener 23 which is a catalyst fastener.
    Here, in a fixing structure of the exhaust pipe 19, the silencer 20, and the like, the exhaust pipe 19, as illustrated in Fig. 5, has a front end thereof fastened and fixed to the cylinder head. 12B through a support 24 by means of a pair of bolts 25 in this example. In addition, the silencer 20, as illustrated in Fig. 2, is fastened and fixed in the vicinity of a rear part of the crankshaft housing 13 by means of a pair of bolts 27 through a support 26 firmly fixed to the silencer. 20 in order to extend forward. Likewise, a lower part of the support mentioned above 26 is also attached to the exhaust pipe 19.
    The exhaust pipe 19 connecting the engine 11 and the silencer 20 extends from the engine 11 as described above while bending backwards. The specific state of the exhaust pipe 19 that is curved in this embodiment will be explained together with the catalyst unit 21. First, as illustrated in Fig. 4 and the like, the exhaust pipe 19 bends to the right. to extend substantially horizontally on the side of the lower surface of the cylinder head 12B. The exhaust pipe 19 extends to the right side to a distance substantially equal to the width of the crankshaft housing 13 and bends backwards, and then goes to the rear as it is and crosses it below the right side of the crankcase 13 to be connected to a part of the front end of the silencer 20.
    In the present invention, in particular, the clamping member 22 on the upstream side of the exhaust is formed to be divided by a plane passing through a central axis Z of the exhaust pipe 19. In Fig. 6 and the Fig. 7A, an example of a structure of the proximity of the clamping member 22 is illustrated, and the clamping member 22 maintains the catalyst unit 21 on the upstream side of the catalyst unit 21. Here, the catalyst unit 21 it has a catalyst 21A housed in, for example, a cylindrical housing 28, and a cover 29 is attached to the circumference of the housing 28. The clamping member 22 is attached to the housing 28 such that one end of the clamping member 22 on the rear side is equipped on the outer circumference of a part of the front end of the housing 28, and the clamping member 22 is attached to the housing 28 such that the other end of the clamping member 22 on the front side is m on the outer circumference of the exhaust pipe 19. Also, the fastener 23 on the downstream side of the exhaust is attached to the housing 28 in such a way that it is compatible with the outer circumference of a part of the rear end of the housing 28. Here, the catalyst 21A is for early activation, and in the front end portion of the silencer 20, as illustrated in Fig. 2 and the like, a main catalyst 21B is equipped.
    In this example, the clamping member 22 has what is called a shell structure manufactured in such a way that usually, an upper half member 22A and a lower half member 22B into which the clamping member 22 is divided are joined with each other by welding, and in the joined parts 22a of the upper half member 22A and the lower half member 22B, the upper half member 22A joins the lower half member 22B in order to overlap the member from the bottom half 22B. Also, each of these members of upper half 22A and lower 22B are formed by pressing work.
    In addition, as described above, one end of the clamping member 22 on the rear side is equipped at the outer circumference of the front end portion of the housing 28, and the clamping member 22 is formed to bend to the left. from the upstream side immediately after catalyst 21A. In the previous case, the overall shape of the clamping member 22, as is the usual illustrated example, is formed in an arc shape having an arc length of about 1/4 of a circumference, for example, but the length , the curvature and the like above may be adjusted according to the type of vehicle or similar applicable as necessary.
    In addition, the clamping member 22 is formed to bend as described above, and, in addition, it is formed so that its cross-sectional area gradually increases towards the catalyst unit 21. In the previous case, as a method of changing the cross-sectional area of the clamping member 22, the cross-sectional area may be formed to be substantially proportional to the length of the clamping member 22, or it may also be formed to gradually increase by a method other than that of the formation of the cross-sectional area proportionally to the length.
    The clamping member 22 incorporated in the power unit 10 is arranged so that it is located under the engine 11, that is, under the cylinder head 12B and the crankcase 13, as illustrated in Fig. 4 and in Fig. 5. Furthermore, in a state in which the power unit 10 is mounted on the structure of the vehicle body, as illustrated in Fig. 2 or in Fig. 3, the clamping member 22 is arranged so that it enters the space between the oscillation axis 108 and the oscillation axis 108A in the front and rear direction and the space between the cylinder head 12B and the support 109 (right side) in the vertical direction from the side straight.
    In the exhaust system, in particular, of the power unit 10 having the structure described above, when the engine 11 is started, the combustion gas is discharged into the exhaust pipe 19 of the combustion chamber in the cylinder head. 12B cylinder through the exhaust port. The above-mentioned combustion gas passes through the interior of the retaining member 22 to flow into the catalyst unit 21. The catalyst 21A in the catalyst unit 21 is heated by the exhaust gases and thereby early activation is achieved. , and the additional exhaust gas passes through the silencer 20 to be finally discharged from an exhaust pipe 20a.
    In the exhaust pipe structure of the present invention, first, the clamping member 22 is formed to be divided into half of upper member 22A and half of lower member 22B. These halves of divided members can be formed separately by extremely easy and precise work in the press, and like the clamping member 22, the degree of freedom of the shape of the particular cross-sectional area is wide. That is, the clamping member 22 can be formed by establishing and changing the cross-sectional area of the clamping member 22 without limitations. Normally, when such an exhaust pipe is manufactured, it is formed by the use of a pipe bending apparatus, such as a bender, but it is extremely difficult to achieve qualities of shape, dimensional accuracy, and the like. In that case, an exhaust passage formed inside the manufactured exhaust pipe significantly affects the exhaust performance of a real vehicle. In accordance with the present invention, the clamping member 22 may be formed by press work as described above while ensuring a high degree of freedom of the cross-sectional area. This makes it possible to form the clamping member 22 with an optimal and effective cross-sectional area to improve the exhaust performance without taking into account the manufacturing capacity such as flexion, because the degree of freedom of the shape of the exhaust duct is wide at this time.
    In addition, the clamping member 22 is disposed on the upstream side of the catalyst unit 21, and the effect of the wide degree of freedom of the form obtained by which the clamping member 22 is formed to have one of two is appreciated. Pieces of split structure with respect to the upstream side. The clamping member 22 is disposed in the narrow and small space located near the exhaust port as described above, and the clamping member 22 can be formed in a way that can be easily placed even in such a narrow space and little. Therefore, the clamping member 22 is disposed in an effective position for the early activation of catalyst 21A, which causes the exhaust performance to be effectively improved. When the catalyst unit 21 is arranged as indicated above, an improvement in the degree of freedom of the arrangement of the catalyst unit 21 can be achieved.
    In addition, the clamping member 22 is formed to bend towards the exhaust port from the upstream side immediately after the catalyst 21A. In the case where an exhaust pipe and a catalyst are connected by the use of conical tubes as explained in a conventional example, a global linear part has had to be elongated. In contrast to this, in the present invention, the clamping member 22 is formed to have a structure divided into two pieces, so that such a linear part can be omitted in practice. Then, also in relation to this point, early activation of catalyst 21A can be achieved by shortening the length of the exhaust pipe 19 on the upstream side of catalyst 21A in particular, while improving the degree of freedom in the design of the catalyst unit 21.
    In addition, the clamping member 22 is formed such that the cross-sectional area thereof gradually increases towards the catalyst 21A. That is, the clamping member 22 is conically formed so that the diameter of the clamping member 22 is enlarged towards the catalyst 21A, and thus the exhaust resistance (inlet and outlet of exhaust gases towards and from catalyst 21A). This can be achieved because the degree of freedom of the form is increased due to the structure divided into two pieces. If the degree of flexion of the clamping member 22 is large, that is, a radius of curvature is initially small, the exhaust resistance is increased. However, the clamping member 22 is formed in a conical shape in which the diameter of the clamping member 22 increases towards the catalyst 21A, and therefore the cause of the increase in strength can be extremely reduced.
    In addition, the clamping member 22 is disposed under the motor 11. As described above, as regards the space under the motor 11, a plurality of peripheral members such as the oscillation axis 108 and the support 109 are arranged in the narrow and small space. The holding member 22 of the present invention has a wide degree of freedom in terms of its shape, so that the extremely large effect is shown with respect to such a narrow and small space in the design. In addition, the clamping member 22 is arranged under the motor, so E12174910
    07-16-2015
    that the holding member 22 is excellent in regard to the efficiency of early activation with respect to the catalyst 21A disposed immediately downstream of the exhaust port.
    Up to this point, the present invention has been explained with various embodiments, but the present invention is not limited only to these embodiments and can be modified within the scope of the present invention.
    For example, the example in which the holding member 22 is divided into the upper and lower members has been explained, but also includes a case in which the direction in which the holding member 10 is divided is moderately inclined from The address up and down.
    In accordance with the present invention, the catalyst holding piece can normally be formed by press work while ensuring a high degree of freedom in the cross-sectional area. This makes it possible to form the catalyst holding part with an optimum and effective cross-sectional area to improve the exhaust performance without taking into account the manufacturing capacity, such as bending. The catalyst holding part is arranged on the upstream side of the catalyst and can be formed so that it can be arranged in the narrow and small space located near the exhaust port, and therefore it is possible to effectively achieve an improvement in the degree of freedom of design while effectively improving the
    20 exhaust performance.
    权利要求:
    Claims (4)
    [1]
     Claims
      
    1. An exhaust pipe structure (19) of a tilting type power unit (10) that includes an internal combustion engine (11) which includes: an engine (11) in which a cylinder arranged substantially horizontally it is arranged so that it is projected on a vehicle body structure; an exhaust pipe (19) through which a combustion gas is discharged from a combustion chamber into a cylinder head (12B) in the engine; and a catalyst (21) disposed in the middle of the exhaust pipe (19), in which the exhaust pipe structure (19) comprises:
    a catalyst holding member (22) holding a part of the catalyst end (21A), which is divided by a plane that passes through a central axis of the exhaust pipe (19),
    characterized in that an overall shape of the catalyst holding member (22) is formed in an arc shape with an arc length of approximately ¼ of circumference and such that a cross-sectional area thereof gradually increases towards the catalyst ( 21A), and the catalyst holding member (22) is arranged so that it is inserted into a space between an oscillation axis (108A) and a crankcase (13) in a front and rear direction and a space between the cylinder head cylinder (12B) and a support (109) that supports the tilting shaft (108A) in a vertical direction
    [2]
    2. The exhaust pipe structure of the internal combustion engine according to claim 1, wherein
    The catalyst holding member (22) holds the catalyst (21A) on an upstream side of the exhaust.
    [3]
    3. The exhaust pipe structure of the internal combustion engine according to claim 1, wherein
    The catalyst holding member (22) is formed to bend from the side immediately upstream of the catalyst (21A).
    [4]
    Four. The exhaust pipe structure of the internal combustion engine according to claim 1, wherein
    The catalyst holding member is arranged under the engine.
    8
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2539467T3|2015-07-01|Exhaust pipe structure of an internal combustion engine
    ES2286736T3|2007-12-01|FENDER STRUCTURE FOR MOTORCYCLES.
    JP3990551B2|2007-10-17|Motorcycle frame structure
    ES2391020T3|2012-11-20|Silencer device
    US7882700B2|2011-02-08|Exhaust pipe structure
    ES2365197T3|2011-09-26|EXHAUST PURIFICATION DEVICE FOR ENGINE.
    US9016422B2|2015-04-28|Saddle-ride type vehicle
    ES2604962T3|2017-03-10|Seat type vehicle
    ES2236095T3|2005-07-16|MOTORCYCLE.
    JP2007038705A|2007-02-15|Exhaust device of compact vehicle and exhaust device of rocking vehicle
    ES2369471T3|2011-12-01|MOTORCYCLE WITH EXHAUST PIPE INCLUDING AN OXYGEN CONCENTRATION SENSOR.
    US8479862B2|2013-07-09|Motorcycle exhaust device
    ES2465742B2|2016-01-26|WINDOW STRUCTURE FOR MOTORCYCLE TYPE VEHICLE
    JP5103344B2|2012-12-19|Motorcycle
    AU2014202793B2|2016-07-07|Exhaust structure for compact vehicle
    ES2703008T3|2019-03-06|Straddle vehicle
    BR102016003641A2|2016-10-11|saddle mount type vehicle exhaust structure
    US8215447B1|2012-07-10|Exhaust device of vehicle and straddle-type four-wheeled vehicle provided with the same
    ES2294873A1|2008-04-01|Fuel pipe structure of vehicle
    ES2459572B2|2015-09-24|BODY STRUCTURE FOR MOTORCYCLE TYPE VEHICLE
    ES2566959T3|2016-04-18|Rear body structure in astride type vehicle
    US20120160591A1|2012-06-28|Exhaust device of vehicle and straddle-type four-wheeled vehicle provided with the same
    ES2294749T3|2008-04-01|EXHAUST GAS PURIFICATION DEVICE.
    JP4684199B2|2011-05-18|Motorcycle exhaust system
    ES2593860T3|2016-12-13|Engine suspension structure for two-wheeled motor vehicle
    同族专利:
    公开号 | 公开日
    JP2013036422A|2013-02-21|
    CN102953788A|2013-03-06|
    ES2539467T3|2015-07-01|
    CN102953788B|2014-11-26|
    EP2557290B1|2015-03-25|
    EP2557290A1|2013-02-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS59208119A|1983-05-13|1984-11-26|Sankei Giken Kogyo Kk|Catalytic converter|
    JP2890440B2|1989-02-23|1999-05-17|スズキ株式会社|Exhaust pipe of motorcycle|
    JP3470138B2|1992-09-30|2003-11-25|ヤマハ発動機株式会社|Exhaust pipe of two-stroke engine for motorcycle|
    JP3257906B2|1994-09-05|2002-02-18|本田技研工業株式会社|Engine exhaust purification device|
    JP3410937B2|1997-09-03|2003-05-26|本田技研工業株式会社|Muffler device for two-cycle engine|
    JP2000234514A|1999-02-15|2000-08-29|Yamaha Motor Co Ltd|Exhaust catalyst for motorcycle|
    JP4428651B2|2004-09-30|2010-03-10|本田技研工業株式会社|Exhaust catalyst mounting structure for motorcycles|
    JP4512006B2|2005-07-28|2010-07-28|本田技研工業株式会社|Exhaust device for V-type multi-cylinder engine in motorcycle|
    JP2007040249A|2005-08-04|2007-02-15|Yamaha Motor Co Ltd|Engine having exhaust emission control function and vehicle|
    JP4689474B2|2006-01-11|2011-05-25|本田技研工業株式会社|Internal combustion engine|
    JP5146777B2|2009-03-11|2013-02-20|本田技研工業株式会社|Catalyst holding structure|
    JP5396152B2|2009-05-22|2014-01-22|本田技研工業株式会社|Motorcycle|JP2015113074A|2013-12-13|2015-06-22|ヤマハ発動機株式会社|Saddle-riding type vehicle|
    PH12014000333A1|2013-12-13|2016-05-30|Yamaha Motor Co Ltd|Saddle-riding vehicle|
    JP6216271B2|2014-03-13|2017-10-18|本田技研工業株式会社|Exhaust pipe with catalyst for saddle-ride type vehicles|
    JP2017149165A|2014-07-04|2017-08-31|ヤマハ発動機株式会社|Saddle-riding type vehicle|
    JP6208353B2|2014-07-04|2017-10-04|ヤマハ発動機株式会社|Vehicle and single cylinder 4-stroke engine unit|
    EP3165731B1|2014-07-04|2020-04-22|Yamaha Hatsudoki Kabushiki Kaisha|Vehicle and single-cylinder four-stroke engine unit|
    EP3015350B1|2014-11-03|2018-01-03|Yamaha Hatsudoki Kabushiki Kaisha|Saddle-riding vehicle|
    TWI579183B|2014-12-15|2017-04-21|山葉發動機股份有限公司|Straddle type vehicle|
    JP6552626B2|2015-09-30|2019-07-31|本田技研工業株式会社|Saddle-ride type vehicle|
    CN110475711B|2017-03-29|2021-08-17|本田技研工业株式会社|Saddle-ride type vehicle|
    JP6684840B2|2018-02-09|2020-04-22|本田技研工業株式会社|Saddle type vehicle|
    JP6639536B2|2018-02-09|2020-02-05|本田技研工業株式会社|Saddle-type vehicle|
    JP6644820B2|2018-02-09|2020-02-12|本田技研工業株式会社|Saddle-type vehicle|
    WO2020250884A1|2019-06-10|2020-12-17|本田技研工業株式会社|Saddle riding-type vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011174331|2011-08-09|
    JP2011174331A|JP2013036422A|2011-08-09|2011-08-09|Exhaust pipe structure of internal combustion engine|
    [返回顶部]