CN101936200A - Muffler assembly and motorcycle - Google Patents
Muffler assembly and motorcycle Download PDFInfo
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- CN101936200A CN101936200A CN2010102193903A CN201010219390A CN101936200A CN 101936200 A CN101936200 A CN 101936200A CN 2010102193903 A CN2010102193903 A CN 2010102193903A CN 201010219390 A CN201010219390 A CN 201010219390A CN 101936200 A CN101936200 A CN 101936200A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
A kind of muffler assembly is provided, the pre-thermal characteristics of catalysing area is improved, and, improve the operability and the riding stability of vehicle by the configuration realization centre of gravityization of catalysing area and the centralization of quality.Exhaust gas is released to exhaust passageway in muffler body (18A) from entering into outlet pipe (23) in the muffler body (18A), its part is bent to form U word shape (U font outlet pipe (190)), disposes catalysing area (187) at the upstream side of U font outlet pipe (190).And the downstream side outlet pipe (191) that extends from the downstream side straight line shape of U font outlet pipe (190) extends to first expansion chamber (183), disposes catalysing area (187) in first expansion chamber (183).Catalysing area (187) is exposed in the exhaust gas of high temperature, thereby improves the pre-thermal characteristics of catalysing area (187).In addition, catalysing area (187) can be configured on the height identical, catalysing area (187) can be configured in inclined to one side the place ahead of muffler body (18A), therefore can realize the centralization of the centre of gravityization and the quality of vehicle with the entrance part of outlet pipe (23).
Description
Technical field
The motorcycle that the present invention relates to a kind of muffler assembly and have this muffler assembly.
Background technique
For the baffler of scooter, generally catalysing area is configured in the muffler body owing to the close together from the firing chamber to the muffler body.In addition, because the close together from the firing chamber to the muffler body from guaranteeing the purpose of outlet pipe length, generally makes outlet pipe be u turn in muffler body.
Patent documentation 1: Japanese kokai publication hei 6-336917 communique
Patent documentation 2: TOHKEMY 2006-220089 communique
The problem that invention will solve
In this baffler, muffler body is interior usually is several expansion chambers by zoning, disposes the many air pipes that are used to be communicated with each expansion chamber in muffler body.Air ducts is configuration abreast alongst in muffler body, but because catalysing area is bigger than the diameter of air pipe, so its configuration degrees of freedom is lower.
Therefore, in the muffler structure that patent documentation 1 is put down in writing, catalysing area is configured in downstream from the outlet pipe of u turn to the position that the exhaust circulation direction is left, thereby reduces the quantity that is present in other air pipe around the catalysing area.
Yet, in the structure that patent documentation 1 is put down in writing,, have the problem of the pre-thermal characteristics step-down of catalysing area because catalysing area is configured in downstream from outlet pipe to the position that the exhaust circulation direction is left.In addition, when being equipped with baffler in the vehicle, owing to be positioned at the top of outlet pipe as the catalysing area of weight thing, so hindered centre of gravityization.
On the other hand, in patent documentation 2, put down in writing and do not made outlet pipe u turn in muffler body, and catalysing area has been configured in from the downstream of the outlet pipe of straight line shape to the circulating direction of exhaust and leave the position in downstream side.Adopt in this structure, can improve the pre-thermal characteristics of catalysing area, and, when in vehicle, being equipped with baffler,, therefore, can realize centre of gravityization because catalysing area is positioned at the position with the outlet pipe equal height.
Yet in the structure that patent documentation 2 is put down in writing, therefore catalysing area mind-set vehicle outside skew and disposing from muffler body at the catalysing area of the position configuration of leaving to vehicle outside from vehicle's center of gravity as the weight thing, has hindered the centralization of quality.
Summary of the invention
The present invention makes in view of this actual conditions, its purpose is to provide a kind of muffler assembly, the pre-thermal characteristics of the catalysing area that is configured in the baffler is improved, and the configuration that utilizes catalysing area realizes the centralization of centre of gravityization and quality, thereby improves the operability and the riding stability of vehicle.
Be used to solve the means of problem
Muffler assembly of the present invention is characterized in that, has: muffler body; Exhaust passageway, it is configured in the muffler body, and this exhaust passageway is connected with the downstream of outlet pipe; The U-shaped part, it is formed on the intermediate portion of above-mentioned exhaust passageway; And catalysing area, it is used for the exhaust gas that enters in the above-mentioned exhaust passageway from above-mentioned outlet pipe is purified, and above-mentioned catalysing area is configured in the upstream side of above-mentioned U-shaped part, and is configured in the above-mentioned muffler body.
In addition, motorcycle of the present invention is characterized in that, is equipped with the muffler assembly of above-mentioned record.
The effect of invention
Adopt the present invention, a kind of muffler assembly can be provided, it improves the pre-thermal characteristics of the catalysing area that is configured in the baffler, and helps the raising of the operability and the riding stability of vehicle.
Description of drawings
Fig. 1 is the side view of the scooter of the invention process form.
Fig. 2 is the plan view of the scooter of the invention process form.
Fig. 3 is the front view and the rear view of the scooter of the invention process form.
Fig. 4 is the simple side view of the scooter of the invention process form.
Fig. 5 is the view of the muffler assembly seen from arrow A direction shown in Figure 4.
Fig. 6 is the perspective elevation of the state of expression after the part of muffler assembly removal muffler body.
Fig. 7 is the sectional drawing of the muffler assembly seen from arrow B direction shown in Figure 5.
Fig. 8 is the sectional drawing of the muffler assembly seen from arrow C direction shown in Figure 5.
Fig. 9 is the sectional drawing from the muffler assembly of seeing with the face of the axis normal of muffler assembly.
Symbol description
1: scooter (vehicle); 2: falling tube; 3: the steering head pipe; 4: the back vehicle frame; 5: front fork; 6: deflecting bar; 7: front-wheel; 8: brake disc; 9: engine bracker; 10: stay; 11: swing bodies formula motor; 12: cylinder assembly; 13: crankcase; 13A: oscillation pivot portion; 14: variable-speed unit; 15: trailing wheel; 16: attenuator; 17: air cleaner; 18: baffler; 18A: muffler body; 18B: discharge tube; 19: jockey's seat; 20: foot treadle; 21: the foreleg protective housing; 22: back vehicle frame cover; 22A: rear mudguard; 23: outlet pipe; 24: the baffler support bracket; 24A, 24B: through hole; 25: the baffler lid; 181: the first dividing plates; 181A: through hole; 182: second partition; 183: the first expansion chambers; 184: the three expansion chambers; 185: the second expansion chambers; 186: divergent cone; 187: catalysing area; 188: tubular part; 189: converged cone 190:U font outlet pipe 191: downstream side outlet pipe 192: air pipe; 193: air pipe.
Embodiment
Below, example of the present invention is described.Fig. 1, Fig. 2, Fig. 3 are respectively side view, plan view, front view and the rear views of having used scooter of the present invention (to call vehicle in the following text) 1.At first, utilize Fig. 1, Fig. 2, Fig. 3 that the summary structure of vehicle 1 is described.In addition, comprise these figure interior, among the employed in the following description figure, as required, vehicle front represents that with arrow Fr rear view of vehicle represents that with arrow Rr right side, vehicle side represents that with arrow R left side, vehicle side is represented with arrow L.
Vehicle 1 is by utilizing a plurality of vehicle body frames of being made by steel or aluminum alloy to form body framing and various component-assembled being constituted on vehicle body frame.As the falling tube 2 of a vehicle body frame part, its front end combines with steering head pipe 3, extends to below roughly from steering head pipe 3, and is crooked afterwards and to rear extension roughly.In the rear portion side of falling tube 2, be combined with as vehicle frame 4 after the pairing left and right of a vehicle body frame part, it tilts and extends to the back upper place respectively.
Be formed with engine bracker 9 in the rear end of falling tube 2, engine bracker 9 is by the modular motor 11 of stay 10 swinging in the cross rest, and can make swing bodies formula motor 11 is center direction swing up and down with the supporting portion of stay 10.Swing bodies formula motor 11 is with cylinder assembly 12, crankcase 13 and comprise speed changer in 14 blocking of interior variable-speed unit, supports trailing wheel 15, and and back vehicle frame 4 between shelve attenuator 16, thereby had the function of swing arm.
In more detail, the engine bracker 9 that is used for the modular motor 11 of swinging in the cross rest is formed on the rear end of falling tube 2 and becomes one with falling tube 2, perhaps, is securely fixed in the rear end of falling tube 2 and extends to rear view of vehicle.Engine bracker 9 also is fixed with stay 10, with swing bodies formula motor 11 up and down direction swingingly be supported in this stay 10.Formed the 13A of oscillation pivot portion on the crankcase 13 of swing bodies formula motor 11, this 13A of oscillation pivot portion axle is supported on the stay 10.And, in swing bodies formula motor 11, be positioned at the variable-speed unit 14 of rear view of vehicle, can support trailing wheel 15 rotationally in the side of its overall width direction inboard, the surface support attenuator 16 thereon.Adopt this structure, swing bodies formula motor 11 has had the function of swing arm.
Be equipped under the state of vehicle 1 at swing bodies formula motor 11, from vehicle front side, cylinder assembly 12, crankcase 13, variable-speed unit 14 are arranged by this preface.The air cooled engine that includes single-cylinder in cylinder assembly 12 carries with the state of cylinder axis along vehicle fore-and-aft direction approximate horizontal.And the power from bent axle that crankcase 13 comprises passes to the driving sprocket wheel that variable-speed unit 14 is contained by transfer members such as V-type bands, and transfer members such as above-mentioned V-type band are set up along vehicle fore-and-aft direction approximate horizontal.Adopt this structure, swing bodies formula motor 11 is the shape of growing crosswise in side view, is equipped on vehicle 1 with its length direction along the state of vehicle fore-and-aft direction approximate horizontal, becomes the inhibition that can realize height of car and the layout structure of centre of gravityization.
In swing bodies formula motor 11, the upper surface of variable-speed unit 14 is provided with air cleaner 17, and air cleaner 17 provides cleaned air passes to the intakeport of cylinder assembly 12.Because cylinder assembly 12 is positioned at vehicle front side in swing bodies formula motor 11, from the cleaned air passes of air cleaner 17 by supplying with to intakeport towards the air suction way of vehicle front.In addition, the lower surface of cylinder assembly 12 is formed with relief opening, and the rearward crooked from here and extension of outlet pipe 23 (Fig. 4) is connected with baffler 18 at rear view of vehicle.
In addition, above swing bodies formula motor 11, be provided with the jockey's seat 19 that takes a seat for the jockey, above falling tube 2, the foot treadle 20 that is used for carrying leg under the state that the jockey takes one's seat is supported on not shown foot-operated carriage.In addition, foot treadle 20 and hood-shaped the becoming one of pin carriage that constitutes vehicle appearance.And, between swing bodies formula motor 11 and the jockey's seat 19, be formed with the article storing space of the so-called helmet box that opens and closes by jockey's seat 19.
As vehicle appearance, be coated with various car body covers, various car body covers are supported on the correct position of vehicle body frame etc.Foreleg protective housing 21 is equipped with signaling lamp, and the vehicle front face side is covered, and links into an integrated entity with above-mentioned foot treadle 20.Back vehicle frame cover 22 is equipped with signaling lamp and brake lamp, and rear view of vehicle is covered.And, be formed with the article storing space in the inboard of back vehicle frame cover 22.In addition, the rear end of back vehicle frame cover 22 is provided with rear mudguard 22A, and it is used to cover the top of trailing wheel 15.
The side view of Fig. 4 vehicle 1 of the state behind the vehicle frame cover 22 that is simple expression behind vehicle 1 removal, Fig. 5 are the baffler 18 seen of the arrow A direction from Fig. 4 and the view of outlet pipe 23.
Lower surface at cylinder assembly 12 is formed with not shown relief opening, and as shown in Figure 4, this relief opening is connected with outlet pipe 23.Outlet pipe 23 tilts to the rear view of vehicle extension and to the back upper place after the bending of overall width direction a little from relief opening, combines with baffler 18 afterwards.The muffler body 18A that constitutes baffler 18 outer surfaces is cylindric, and outlet pipe 23 enters (simultaneously with reference to Fig. 6) in the muffler body 18A from about centre of the vehicle front side end face of muffler body 18A.,, purified by catalyzer by the exhaust passageway that constitutes in 18A to the inner exhaust gas that flows into or flow out of muffler body 18A from outlet pipe 23, the expansion chamber that institute's zoning goes out in muffler body 18A is discharged.To the exhaust gas that expansion chamber is discharged, afterwards via a plurality of expansion chambers, discharge to the outside from discharge tube 18B (Fig. 5), this discharge tube 18B opens to the outside from the rear end of muffler body 18A.
On muffler body 18A and outlet pipe 23, be welded with baffler support bracket 24, the through hole 24A, the 24B that are formed on the baffler carriage 24 are fixed on the fixing part of the correct position that is formed at crankcase 13, thereby baffler 18 is fixed on the swing bodies formula motor 11.Be equipped at baffler 18 under the state of vehicle 1, baffler 18 is the state that the rear portion makes progress on the vehicle fore-and-aft direction.In addition, at the additional baffler cover bracket 24C that is provided with in the overall width direction outside of muffler body 18A side face (outer surface), by this baffler cover bracket 24C baffler lid 25 is installed, this baffler lid 25 covers the length direction of baffler 18.
Then, the internal structure to baffler 18 describes.Fig. 6 (A), (B) are the perspective elevation of expression after the part of baffler 18 removal muffler body 18A.In addition, in Fig. 6 (A), (B), also exist for convenient and not shown parts.And, in the following description, there is the situation that the side near apart from outlet pipe 23 sides in the exhaust passageway in the muffler body 18A described as the downstream as upstream, a side far away.
Shown in Fig. 6 (A), (B), in muffler body 18A, dispose discoid first dividing plate 181, second partition 182 respectively, thus, it is first expansion chamber 183, the 3rd expansion chamber 184, second expansion chamber 185 that muffler body 18A begins by zoning from vehicle front.
End of downstream side (end of rear view of vehicle side) at catalysing area 187 is connected with tubular part 188.Tubular part 188 is pipe parts of inserting logical first dividing plate 181, the hollow cylindrical between first expansion chamber 183 and the 3rd expansion chamber 184, constitutes the part of exhaust passageway.The tubular part 188 that one end of upstream side is connected with catalysing area, its other end is connected with the converged cone 189 of undergauge rearward.Adopt this structure, the exhaust gas of discharging from divergent cone 186 flows out to the rear of vehicle by tubular part 188 and converged cone 189 after catalysing area 187 purifies.
Influence the output characteristics of motor and the converged cone 189 of noise reduction characteristic, undergauge became before zoning goes out the second partition 182 of second expansion chamber 185 to form mild taper, and extended near the second partition 182.And converged cone 189, its end of downstream side form roughly straight tubular and are supported in second partition 182.In second expansion chamber 185, dispose the U font outlet pipe 190 of being bent to form shown in Fig. 6 (B) for U word shape, the upstream side end of U font outlet pipe 190 is connected with the end of downstream side of converged cone 189.Downstream side outlet pipe 191, one end of its upstream side is connected with U font outlet pipe 190, extend to first expansion chamber 183 by second partition 182, first dividing plate 181, the other end in the downstream side of downstream side outlet pipe 191 is close to catalysing area 187, side by side exhaust gas.Adopt this structure, to the exhaust gas of rear view of vehicle outflow, by U font outlet pipe 190 conversion directions, diffluence forwards and discharge in first expansion chamber 183.
Next exhaust gas to first expansion chamber 183 is discharged flows into second expansion chamber 185.Shown in Fig. 6 (B), first expansion chamber 183 and second expansion chamber 185 are communicated with the air pipe 192 of the parallel axes of outlet pipe 23 grades by being configured to.Thus, the exhaust gas from downstream side outlet pipe 191 is discharged to first expansion chamber 183 flows into second expansion chamber 185 that is positioned at vehicle rear.
And shown in Fig. 6 (B), second expansion chamber 185 is communicated with by air pipe 193 with the 3rd expansion chamber 184.Thus, the exhaust gas of discharging to second expansion chamber 185 flows into the 3rd expansion chamber 184.Shown in Fig. 6 (A), open in the 3rd expansion chamber 184 with the end of the discharge tube 18B of external communications, the exhaust gas that flows into the 3rd expansion chamber 184 is discharged to the outside by discharge tube 18B.
Next, shape and coupled condition from the end of downstream side of outlet pipe 23 to each parts of downstream side outlet pipe 191 are elaborated, and these parts constitute will be from the exhaust passageway in the muffler body 18A of the exhaust gas that enters into the outlet pipe 23 in the muffler body 18A before first expansion chamber 183 is discharged.Fig. 7 is the B-B sectional drawing of seeing from arrow B shown in Figure 5, and Fig. 8 is the C-C sectional drawing of seeing from arrow C shown in Figure 5.In addition, Fig. 9 is the sectional drawing of the baffler 18 seen from the axial direction of baffler 18.
As shown in Figure 7, outlet pipe 23 directly enters from about centre of the above-below direction of muffler body 18A.Fig. 9 (A) is the view of the D-D direction among Fig. 7, and as shown in this figure, outlet pipe 23 enters in the muffler body 18A from the centre of the overall width direction of baffler 18.Afterwards, outlet pipe 23 extends in first expansion chamber 183 and is connected with above-mentioned divergent cone 186.
Fig. 8 is a C-C sectional drawing shown in Figure 5, more detailed, be the sectional drawing (simultaneously with reference to Fig. 9 (B)) that the imaginary plane of central axis of central axis, the downstream side outlet pipe 191 of the involved central axis that outlet pipe 23 arranged of baffler 18, catalysing area 187 is cut open.Though in baffler 18, the central axis (L3) that has formed central axis (L2), the downstream side outlet pipe 191 of central axis (L1), the catalysing area 187 of outlet pipe 23 is comprised in the position relation in the same imaginary plane, but does not need to adopt such structure.
As shown in Figure 8, divergent cone 186 is the cone shape of the decaptitating (residual fraction after the removal conical head of hole enlargement rearward, be circular cone), the center of its side face towards vehicle interior side below (the arrow D direction among Fig. 9 (A)) gradually away from the central axis of outlet pipe 23.And, divergent cone 186, the state of the upstream-side-end of embedding catalysing area 187 and catalysing area 187 link beyond its end of downstream side, and afterwards, catalysing area 187 extends to the position, front of first dividing plate 181.With the end of downstream side of the catalysing area 187 of the position, front that extends to first dividing plate 181 by the form of the outer embedding of interior all end faces of tubular part 188 with catalysing area 187 and tubular part 188 chimeric bindings, this tubular part 188 is adapted to across between first expansion chamber 183 and the 3rd expansion chamber 184.Tubular part 188 is inserted and is led in the inserting hole 181A of first dividing plate 181, is the airtight conditions that keeps between the expansion chamber, tubular part 188 with tight state of contact, be its side face and the contacting in interior week of inserting hole 181A.Like this, catalysing area 187 with its upstream-side-end be connected with outlet pipe 23, its end of downstream side is supported with the state that tubular part 188 is connected, its side face is exposed in first expansion chamber 183.Adopt such structure,, so the preheating of catalysing area 187 can be done sth. in advance owing to the heat of the high-temperature exhaust air gas of discharging to first expansion chamber 183 is directly passed to the outer surface of catalysing area 187.In addition, in this example, though, also they can be formed as one with outlet pipe 23 and divergent cone 186 split settings.And, though catalysing area 187 is supported by its end, front and back is connected with divergent cone 186, tubular part 188, and its side face exposed in first expansion chamber 183, but most of outer surface that also can covering catalyst portion 187 and catalysing area 187 is supported in the muffler body 18A.
Fig. 9 (B) is the view of the E-E direction among Fig. 7, is the sectional drawing of cutting baffler 18 in the side after a while of first dividing plate 181 open in more detail.Because catalysing area 187 is connected with divergent cone 186, and the center heart of the side face of diffusion centrum 186 towards vehicle interior side below gradually away from the central axis of outlet pipe 23, therefore, shown in Fig. 9 (B), the central axis of catalysing area 187 (L2) is in from the central axis (L1) of outlet pipe 23 position to outer circumferential side (the arrow D direction Fig. 9 (A)) skew.Therefore, be equipped with at vehicle 1 under the state of baffler 18, the axis L 2 (axle center) of catalysing area 187 is at vertical surface and the vehicle interior side between the horizontal plane and the downside of vehicle 1, and promptly axis L 1 is positioned at vehicle interior side and downside relatively.
Then, in the 3rd expansion chamber 184, tubular part 188 forms in the dead astern of catalysing area 187 along the roughly the same exhaust passageway of specific length size internal diameter and catalysing area 187, and the end of downstream side of tubular part 188 (dead astern) is connected with converged cone 189.Converged cone 189 undergauge gradually in the 3rd expansion chamber 184, and be connected towards the U of the 3rd expansion chamber font outlet pipe 190 with an end through second partition 182.
U font outlet pipe 190 bends to U word shape, and combines with downstream side outlet pipe 191 in its end of downstream side.Downstream side outlet pipe 191 extends to first expansion chamber 183, and discharges exhaust gas from its end of downstream side.Here, shown in Fig. 9 (B), because the central axis (L3) of the central axis (L2) of the central axis (L1) of formation outlet pipe 23, catalysing area 187, downstream side outlet pipe 191 is comprised in the position relation in the same imaginary plane in baffler 18, and the central axis of catalysing area 187 (L2) moves to the periphery lateral deviation from the central axis (L1) of outlet pipe 23, so the central axis of downstream side outlet pipe 191 (L3) is positioned at the opposition side of the central axis (L2) of catalysing area 187 across the central axis (L1) of outlet pipe 23.That is, be set at from the central axis (L3) of downstream side outlet pipe 191 bigger to the distance of the axis of outlet pipe 23 to the distance of the central axis (L2) of catalysing area 187 than central axis (L3) from downstream side outlet pipe 191.Structure described herein, the back is described in detail, and when carrying on vehicle 1, helps centre of gravityization and mass concentrationization.
And after first expansion chamber 183 was discharged exhaust gas, as mentioned above, exhaust gas flowed into second expansion chamber 185, the 3rd expansion chamber 184, and finally discharges to the outside from discharge tube 18B from downstream side outlet pipe 191.Fig. 9 (C) is the view of the F-F direction among Fig. 7, more specifically, is the sectional drawing of cutting baffler 18 in the side after a while of second partition 182 open.As shown in this figure, air pipe 192, the air pipe 193 that is communicated with each expansion chamber is not adapted to not produce with catalysing area 187 and downstream side outlet pipe 191 etc. in muffler body 18A and interferes.In addition, discharge tube 18B is adapted to its discharge side end and opens to the outside from the centre of the overall width direction of baffler 18, and exhaust gas is from discharging to the outside here.
As mentioned above, in this example, in the muffler body 18A of baffler 18 on the exhaust passageway of formed exhaust gas, be provided with the position (U font outlet pipe 190) that bends to U word shape, and catalysing area 187 be configured in the upstream side of the exhaust gas flow direction of U font outlet pipe 190.Can improve the pre-thermal characteristics of catalysing area 187 by this structure.Also promptly,, catalysing area 187 is exposed in the exhaust gas of high temperature as much as possible, thereby has improved the pre-thermal characteristics of catalysing area 187 by catalysing area 187 being configured in the upstream side of U font outlet pipe 190.And, the downstream side outlet pipe 191 that extends from the downstream side straight line shape of U font outlet pipe 190, extend to first expansion chamber 183 always and exhaust gas is discharged, by configuration catalysing area 187 in first expansion chamber 183, the exhaust gas that makes high temperature is directly with 187 encirclements of catalysing area, thereby makes catalysing area 187 can further do sth. in advance preheating.
In addition, by catalysing area 187 being configured in the upstream side of U font outlet pipe 190, catalysing area 187 can be configured in (if downstream side configuration catalysing area on the height identical with the entrance part of outlet pipe 23, then be in the position higher) than outlet pipe 23, can realize the centre of gravityization of vehicle 1, therefore can improve the riding stability of vehicle 1.In addition, in vehicle 1, vehicle's center of gravity is positioned at swing bodies h type engine h 11 sides as the weight thing, but because inclined to one side the place ahead of muffler body 18A disposes the catalysing area 187 as the weight thing, therefore can make as weight thing catalysing area 187 near the vehicle's center of gravity side.Therefore, the centralization of quality can be realized, and the operability of vehicle 1 can be improved.
In addition, shown in Fig. 9 (B), in baffler 18, the central axis (L3) of the central axis (L1) of the outlet pipe 23 that formation enters from about centre of muffler body 18A, the central axis (L2) of catalysing area 187, downstream side outlet pipe 191 is comprised in the position relation in the same imaginary plane, and the central axis of catalysing area 187 (L2) and the central axis (L3) of downstream side outlet pipe 191 are in the relative position of central axis (L1) across outlet pipe 23.By forming this position relation, with on baffler 18 equipped vehicles 1 time, the catalysing area 187 as the weight thing can be configured in as far as possible overall width direction inboard and below (low level).And, when like this this catalysing area 187 being configured in overall width direction inboard and below (low level), can realize the centralization and the centre of gravityization of quality, the operability of vehicle 1 and riding stability are further improved.In addition, to the jockey, the inboard of muffler body 18A and below are in leaves foot position farthest, and the catalysing area 187 that can make high temperature effectively is away from foot.In addition, in this example,, be provided with baffler lid 25, therefore, can guarantee Security effectively for high temperature catalyst portion 187 on the outer surface of the relative muffler body 18A of downstream side outlet pipe 191 and catalysing area 187.
In addition, in baffler 18, be set at from the central axis of downstream side outlet pipe 191 bigger than central axis to the distance of the axis of outlet pipe 23 from downstream side outlet pipe 191 to the distance of the central axis of catalysing area 187.In this structure, even will in muffler body 18A, constitute the central axis configuration of each parts of exhaust passageway near muffler body 18A, also can will be positioned at the outlet pipe 23 of upstream side of catalysing area 187 near the configuration of the central axis of muffler body 18A, therefore, can obtain it seems the good device of design visually from the outside.And, even not having the central axis of central axis, the downstream side outlet pipe 191 of axis, the catalysing area 187 of outlet pipe 23, this structure is not comprised in position relation in the same imaginary plane, also can obtain identical effect.
In addition, divergent cone 186 is the cone shape of decaptitating of hole enlargement rearward, and its axle center gradually away from the axis of outlet pipe 23, and connects outlet pipe 23 and catalysing area 187 towards vehicle interior side below.By using this divergent cone 186, the exhaust gas of discharging from outlet pipe 23 can spread effectively, can effectively utilize catalysing area 187.
More than example of the present invention is illustrated, yet the present invention is not limited in above-mentioned example.For example, in this example, baffler of the present invention is applied to scooter, but also can be applied at other motorcycle.
Claims (9)
1. muffler assembly is characterized in that having:
Muffler body;
Exhaust passageway, it is configured in the muffler body, and this exhaust passageway is connected with the downstream of outlet pipe;
The U-shaped part, it is formed on the intermediate portion of above-mentioned exhaust passageway; And
Catalysing area, it is used for the exhaust gas that enters in the above-mentioned exhaust passageway from above-mentioned outlet pipe is purified,
Above-mentioned catalysing area is configured in the upstream side of above-mentioned U-shaped part, and is configured in the above-mentioned muffler body.
2. muffler assembly as claimed in claim 1 is characterized in that also having:
A plurality of expansion chambers, it is formed by zoning in above-mentioned muffler body;
The downstream part, its length direction straight-line extension from above-mentioned U type downstream side partly along above-mentioned muffler body, and,
The downstream of above-mentioned downstream part is open in being provided with the above-mentioned expansion chamber of above-mentioned catalysing area.
3. muffler assembly as claimed in claim 1 or 2 is characterized in that,
The above-mentioned outlet pipe that enters in the above-mentioned muffler body enters from about centre of the anterior end surface of above-mentioned muffler body,
The central axis of the central axis of above-mentioned catalysing area, the central axis of above-mentioned downstream part and above-mentioned outlet pipe is comprised in the same imaginary plane, and the central axis of above-mentioned outlet pipe is configured between the central axis of the central axis of above-mentioned catalysing area and above-mentioned downstream part.
4. muffler assembly as claimed in claim 3 is characterized in that,
The central axis of above-mentioned catalysing area is configured to be positioned at respect to the central axis of above-mentioned outlet pipe the inboard of overall width direction, and the central axis of above-mentioned catalysing area is configured to be positioned at respect to the central axis of above-mentioned outlet pipe the downside of overall height direction.
5. muffler assembly as claimed in claim 3 is characterized in that also having:
The central axis that the divergent cone that is the cone shape of decaptitating, its central shaft alignment above-mentioned catalysing area is gradually away from the central axis of above-mentioned outlet pipe, and this diffusion centrum connects above-mentioned outlet pipe and above-mentioned catalysing area.
6. muffler assembly as claimed in claim 3 is characterized in that also having:
The baffler lid, with respect to the vertical plane of the central axis that comprises above-mentioned outlet pipe, this baffler covers on the outer surface of the above-mentioned muffler body that is located at central axis one side that disposes above-mentioned downstream part.
7. muffler assembly as claimed in claim 2 is characterized in that,
With the distance setting between the central axis of the central axis of above-mentioned outlet pipe and above-mentioned catalysing area is less than the distance between the central axis of the central axis of above-mentioned outlet pipe and above-mentioned downstream part.
8. muffler assembly as claimed in claim 3 is characterized in that,
With the distance setting between the central axis of the central axis of above-mentioned outlet pipe and above-mentioned catalysing area is less than the distance between the central axis of the central axis of above-mentioned outlet pipe and above-mentioned downstream part.
9. a motorcycle is characterized in that, is equipped with muffler assembly as claimed in claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009152639A JP2011007137A (en) | 2009-06-26 | 2009-06-26 | Muffler and motorcycle |
| JP2009-152639 | 2009-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936200A true CN101936200A (en) | 2011-01-05 |
| CN101936200B CN101936200B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102193903A Expired - Fee Related CN101936200B (en) | 2009-06-26 | 2010-06-25 | Silencer apparatus and autobicycle |
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| Country | Link |
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| JP (1) | JP2011007137A (en) |
| CN (1) | CN101936200B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603795A (en) * | 2012-09-05 | 2014-02-26 | 厦门嘉达环保建造工程有限公司 | Hydraulic silencer |
| CN106401698A (en) * | 2015-07-28 | 2017-02-15 | 川崎重工业株式会社 | Exhaust unit of automatic cycle |
| CN107091132A (en) * | 2016-02-18 | 2017-08-25 | 本田技研工业株式会社 | The exhaust apparatus of saddle-ride type vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5916119B2 (en) * | 2012-06-20 | 2016-05-11 | 本田技研工業株式会社 | Exhaust gas purification device for internal combustion engine of saddle riding type vehicle |
| JP6256255B2 (en) * | 2014-08-22 | 2018-01-10 | スズキ株式会社 | Muffler structure of motorcycle |
| JP6420698B2 (en) * | 2015-03-11 | 2018-11-07 | 本田技研工業株式会社 | Exhaust muffler device for saddle riding type vehicles |
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| US6651773B1 (en) * | 2002-09-24 | 2003-11-25 | Gregory M. Marocco | Exhaust sound attenuation and control system |
| CN1755071A (en) * | 2004-09-30 | 2006-04-05 | 本田技研工业株式会社 | Waste gas purifying apparatus |
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| CN101067393A (en) * | 2006-05-01 | 2007-11-07 | 雅马哈发动机株式会社 | Exhaust device and vehicle provided with an exhaust device |
| CN101082296A (en) * | 2006-05-31 | 2007-12-05 | 本田技研工业株式会社 | Catalyst configuration structure of locomotive two-wheeled vehicle |
| CN101311504A (en) * | 2005-03-18 | 2008-11-26 | 雅马哈发动机株式会社 | Exhaust gas purifying apparatus |
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- 2009-06-26 JP JP2009152639A patent/JP2011007137A/en active Pending
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| US6651773B1 (en) * | 2002-09-24 | 2003-11-25 | Gregory M. Marocco | Exhaust sound attenuation and control system |
| CN1755071A (en) * | 2004-09-30 | 2006-04-05 | 本田技研工业株式会社 | Waste gas purifying apparatus |
| CN1796733A (en) * | 2004-12-28 | 2006-07-05 | 本田技研工业株式会社 | Exhaust apparatus of vehicles |
| CN101311504A (en) * | 2005-03-18 | 2008-11-26 | 雅马哈发动机株式会社 | Exhaust gas purifying apparatus |
| CN1854477A (en) * | 2005-04-14 | 2006-11-01 | 雅马哈发动机株式会社 | Exhaust gas purification device |
| CN101067393A (en) * | 2006-05-01 | 2007-11-07 | 雅马哈发动机株式会社 | Exhaust device and vehicle provided with an exhaust device |
| CN101082296A (en) * | 2006-05-31 | 2007-12-05 | 本田技研工业株式会社 | Catalyst configuration structure of locomotive two-wheeled vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603795A (en) * | 2012-09-05 | 2014-02-26 | 厦门嘉达环保建造工程有限公司 | Hydraulic silencer |
| CN103603795B (en) * | 2012-09-05 | 2016-01-27 | 厦门嘉达环保建造工程有限公司 | Descaling muffler |
| CN106401698A (en) * | 2015-07-28 | 2017-02-15 | 川崎重工业株式会社 | Exhaust unit of automatic cycle |
| CN106401698B (en) * | 2015-07-28 | 2019-03-26 | 川崎重工业株式会社 | The exhaust apparatus of automatic two-wheeled cycle |
| CN107091132A (en) * | 2016-02-18 | 2017-08-25 | 本田技研工业株式会社 | The exhaust apparatus of saddle-ride type vehicle |
| CN107091132B (en) * | 2016-02-18 | 2019-07-02 | 本田技研工业株式会社 | The exhaust apparatus of saddle-ride type vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101936200B (en) | 2013-04-10 |
| JP2011007137A (en) | 2011-01-13 |
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