CN100451305C - Exhaust pipe of locomotive - Google Patents
Exhaust pipe of locomotive Download PDFInfo
- Publication number
- CN100451305C CN100451305C CNB2004100583779A CN200410058377A CN100451305C CN 100451305 C CN100451305 C CN 100451305C CN B2004100583779 A CNB2004100583779 A CN B2004100583779A CN 200410058377 A CN200410058377 A CN 200410058377A CN 100451305 C CN100451305 C CN 100451305C
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- tube
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- catalyzer
- outlet pipe
- locomotive
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Abstract
The present invention aims at providing an exhaust pipe for motor vehicles. When a honeycomb-shaped catalyst cylinder in large size is arranged, the section area of a flow channel of a big communication pipe can also be guaranteed; accordingly, the vent flowing impedance can be reduced, and the property effect of the exhaust pipe can be improved. A catalyst cylinder, a plurality of silencing chambers, a communicating pipe and an outlet pipe are arranged in a silencer of the exhaust pipe for motor vehicles, wherein the catalyst cylinder is communicated to an exhaust opening of a motor vehicle engine, and catalyst is placed in the catalyst cylinder for purifying waste gas exhausted from the engine; each sound silencing chamber is provided with a plurality of barrier plates; the communicating pipe makes purified gas circulate in the silencing chambers; the outlet pipe exhausts purified gas in the silencer outside. The communicating pipe is arranged outside the catalyst cylinder around the catalyst cylinder; a flow channel for leading gas to circulate is formed between the outer wall of the catalyst cylinder and the inner wall of the communicating pipe.
Description
Technical field
The invention relates to a kind of locomotive outlet pipe that in the outlet pipe baffler, is provided with large scale catalyzer tube.
Background technique
Dispose the catalyzer tube in the outlet pipe baffler of general locomotive, wherein be provided with honeycomb type catalyst, after the waste-gas cleaning that engine is discharged in the catalysis that utilizes catalyzer, again it is discharged to the baffler outside.Usually the size of catalyzer tube is big more, and its catalytic effect is good more, and catalyzer wherein must reach certain above competence exertion of temperature and goes out catalysis and reach its effect.In general, bigger honeycomb type catalyst temperature when reaction is higher, though its waste-gas cleaning effect is better, but it is longer to reach the catalyzer operating temperature time.
In order to adapt to the exhaust rules of increasingly stringent, the catalyzer cylinder size in the outlet pipe is as mentioned above for promoting that catalytic effect day by day increases.According to traditional design, each connecting tube of baffler is the design of adopting independent pipe, also promptly shown in the gas flow schematic representation in the existing locomotive outlet pipe baffler of Fig. 6 (a), from waste gas that engine is discharged after independently upstream connecting tube being passed to the catalyzer tube, enter the circulation of downstream connecting tube again, be discharged from again at last in outlet pipe baffler outside.
But, under the design and configuration of existing this kind baffler connecting tube, can keep small-sized the simplifying that existing apparent size still keeps locomotive for making outlet pipe, shown in Fig. 6 (b), the increase of catalyzer cylinder size will cause the size of the connecting tube in the baffler and configuration space to be forced to dwindle.And the caliber of connecting tube diminishes, and can make the flow impedance of ventilating in the baffler increase, and causes the performance of outlet pipe to reduce.Especially the size of catalyzer tube is increased to its external diameter is 50% when above of baffler internal diameter in order to promote exhaust purification efficiency, and it is more obvious that the volume of anechoic chamber and connecting tube is forced to the situation of dwindling more, and caused engine efficiency reduction is with even more serious.
In addition, in the configuration of existing baffler, because connecting tube is more more, structure is comparatively complicated, and because of tube pitch from closely so that welding gun can't deeply carry out full week welding to the junction of barrier plate and connecting tube, causes the departure between the demarcation strip of separating the anechoic chamber to become big easily, and be difficult for it is filled in the housing of baffler manufacturing thereby can't promote.
Summary of the invention
During the outlet pipe that The present invention be directed to above-mentioned existing locomotive constitutes, for the efficient that promotes waste-gas cleaning and can not reduce engine performance, and a solution that proposes.Its purpose is to provide a kind of outlet pipe of locomotive, can solve existing problem in the above-mentioned existing locomotive outlet pipe, the mode of communicating of baffler is utilized the design of concentric tube, even the honeycomb type catalyst that configuration sized increases significantly, also can guarantee bigger connecting tube runner sectional area, the effect that improves the outlet pipe performance to reach the flow impedance that reduces ventilation.
Specifically, first scheme of the present invention provides a kind of outlet pipe of locomotive, it has a baffler, have in the above-mentioned baffler: the catalyzer tube, be communicated in the floss hole of locomotive engine, be provided with catalyzer in it, supply to purify waste gas, and the gas that is purified is discharged in above-mentioned baffler from above-mentioned engine emissions; By a plurality of anechoic chambers that more than one barrier plate was divided into; A connecting pipe circulates Purge gas between above-mentioned anechoic chamber; One discharge tube, the Purge gas of baffler inside is discharged to the outside, it is characterized by: above-mentioned connecting tube is disposed at the outside of above-mentioned catalyzer tube in the mode of surrounding above-mentioned catalyzer tube, utilizes between above-mentioned catalyzer drum outer wall and the above-mentioned connecting tube inwall and form the runner that guiding purifies the back gas communication.
According to above-mentioned formation of the present invention, by be disposed at the outside of above-mentioned catalyzer tube connecting tube in the mode of surrounding above-mentioned catalyzer tube, and utilize catalyzer drum outer wall and the space between connecting tube to form the sizable runner of a sectional area, therefore, even the caliber size of the catalyzer tube that disposed is increased to sizable degree, still can guarantee the runner sectional area of big connecting tube, reduce the flow impedance of ventilation and improve the effect of outlet pipe performance.Therefore, according to above-mentioned formation of the present invention, can be in being divided into the small-sized outlet pipe of a plurality of anechoic chambers, the honeycomb type catalyst tube that configuration sized is big.
In addition, according to above-mentioned formation of the present invention, by with the catalyzer tube with a connecting pipe probably be the inside that the mode of concentric tube is disposed at this connecting tube, so, this concentric connecting tube also can be used for heat insulation, and the heat that can slow down catalyzer directly passes to the outer surface of outlet pipe, avoids causing scald.
In addition, in the general concentric tube structure of above-mentioned catalyzer tube and connecting tube, because of forcing the outside of gas stream, when the initial stage of engine startup just through the catalyzer tube, but the heat self-catalysis agent tube outside of gas is delivered to catalyzer, shortens the time that catalyzer reaches operating temperature.Afterwards, during greater than gas temperature, also can the heat of catalyzer be taken away, avoid catalyzer to melt loss because of overheated by the gas of the above-mentioned catalyzer tube outside of flowing through because the catalyzer operating temperature constantly raises.
In addition, not only comparatively simple according to above-mentioned formation of the present invention for the configuration of barrier plate, catalyzer tube, connecting tube etc., and also big because of the footpath of the punching in the middle of the barrier plate, therefore with big the welding connecting tube easily of caliber size, available welding gun carries out full week welding.In addition, the junction plane of barrier plate and connecting tube is big, and the departure between barrier plate reduces, and is more prone to when therefore filling in it in the housing of baffler, and manufacturing can significantly promote.
The outlet pipe of the locomotive that alternative plan of the present invention provides, be on the basis of first scheme, wherein the end of above-mentioned connecting tube is to form to the inner notch of its body and with this notch breach to engage with above-mentioned catalyzer drum outer wall, and in passing through above-mentioned a plurality of barrier plate locates to form a through port that can supply Purge gas to pass through thus.
According to above-mentioned formation of the present invention, form to its body internal recess until with till above-mentioned catalyzer drum outer wall contacts and the shape that engages with above-mentioned catalyzer drum outer wall by a end above-mentioned connecting tube, and a place that can be in passing through above-mentioned a plurality of barrier plate, by the outer wall of the outer wall of above-mentioned connecting tube, above-mentioned catalyzer tube, with above-mentioned a plurality of barrier plates in one inwall form a through port, to allow gas forward circulation between two anechoic chambers of being separated by one in above-mentioned a plurality of barrier plates.
The outlet pipe of the locomotive that third party's case of the present invention provides is on the present invention first or alternative plan basis, and the external diameter of wherein above-mentioned catalyzer tube is more than 50% of above-mentioned baffler internal diameter.
According to above-mentioned formation of the present invention, by the external diameter with above-mentioned catalyzer tube form above-mentioned baffler internal diameter more than 50% and be disposed at wherein, just can be under the big situation of the runner sectional area of guaranteeing connecting tube, increase size of catalyst widely, temperature is higher when making reaction, dwindles catalyzer and reaches the required time of operating temperature.
The outlet pipe of the locomotive that the cubic case of the present invention provides is on the basis of the present invention first or alternative plan, wherein has a plurality of anechoic chambers.
The outlet pipe of the locomotive that the present invention's the 5th scheme provides is on the present invention first or alternative plan basis, and wherein above-mentioned connecting tube is to form it to be eccentric relation with the catalyzer tube that is positioned at wherein, and section is general semi-moon shaped body.
According to above-mentioned formation of the present invention, by with above-mentioned catalyzer tube and above-mentioned connecting tube the mode with off-centre dispose, reach the runner sectional area of bigger connecting tube, and then reduce gas in above-mentioned catalyzer tube and between above-mentioned connecting tube the flow impedance when forming runner, and further improve the performance of engine.
Description of drawings
Fig. 1 is the schematic perspective view of the outlet pipe of locomotive of the present invention.
Fig. 2 is the A-A line sectional drawing of Fig. 1.
Fig. 3 is the B-B line sectional drawing of Fig. 1.
Fig. 4 is the gas flow schematic representation in the blow-down silencer of locomotive of the present invention.
Fig. 5 is the schematic perspective view of outlet pipe of the locomotive of another embodiment of the present invention.
Fig. 6 (a), Fig. 6 (b) are the gas flow schematic representation in the blow-down silencer of existing locomotive.
Embodiment
Below referring to figs. 1 through Fig. 5, describe embodiments of the present invention in detail.
Fig. 1 is the schematic perspective view of the outlet pipe 1 of locomotive of the present invention, and Fig. 2 is the A-A line sectional drawing of Fig. 1, and Fig. 3 is the B-B line sectional drawing of Fig. 2, and Fig. 4 is the gas flow schematic representation in the baffler 12 of outlet pipe 1 of locomotive of the present invention.
As shown in Figure 1, the outlet pipe 1 of locomotive of the present invention, it comprises following each member: discharge pipe 11 is communicated with engine emissions mouth (not shown among the figure) and baffler 12, so that the waste gas that engine was given off is directed within the baffler 12; Barrier plate 13a, 13b, probably in the form of a ring, catalyzer tube 14 and connecting tube 17 pass therebetween, inside with baffler 12, priority according to gas communication is separated into first anechoic chamber 31, second anechoic chamber 32 in regular turn, reaches the 3rd anechoic chamber 33, and by 11 of discharge pipes, successively preface be second, third, first anechoic chamber 32,33,31; Catalyzer tube 14 is provided with catalyzer in it; Catalyzer tube upstream extremity 16, it is positioned at second anechoic chamber 32, and connecting tube 11 and catalyzer tube 14 are to direct into waste gas in the catalyzer tube 14; Catalyzer tube downstream 15, it is positioned at first anechoic chamber 31, is connected in catalyzer tube 14, and at first anechoic chamber, 31 split sheds, with will be in catalyzer tube 14 Cress gas release later in first anechoic chamber 31; Connecting tube 17, it extends in each anechoic chamber, also promptly be disposed at the outside of catalyzer tube 14 in the mode of surrounding catalyzer tube 14, and the front end and back end is passed through two barrier plate 13a respectively, 13b and extending in first anechoic chamber 31 and second anechoic chamber 32, outer wall with its inwall and catalyzer tube 14 forms the negotiable flow channel space 21 of gas, the diagram bottom of the rear end of this connecting tube 17 (second anechoic chamber, 32 ends) is to form to the inner notch of body and with this notch breach to engage with the outer wall of catalyzer tube 14, therefore as Fig. 1 and shown in Figure 3, in passing through barrier plate 13a part, notch meeting formation one through port 22 between barrier plate 13a and catalyzer tube 14 because of connecting tube 17, the bottom of connecting tube 17 is protruded gradually and is reverted to tubular afterwards, and before arriving barrier plate 13b, revert to the size of former barrel dliameter and notch no longer, and, be bonded into roughly sealing state with barrier plate 13b as Fig. 1 and shown in Figure 4; Discharge tube 18 extends through first anechoic chamber 31 from the 3rd anechoic chamber 33, discharges in baffler 12 outsides from the 3rd anechoic chamber 33 and will purify gas later in baffler 12 cleaning insides.
In the embodiments of the present invention, by above-mentioned constitutive requirements, with connecting tube 17 with catalyzer tube 14 probably be the mode of concentric tube, also promptly be disposed at the periphery of catalyzer tube 14 in the mode of surrounding catalyzer tube 14, and utilize the outer wall of catalyzer tube 14 and the space between the inwall of connecting tube 17 to form the sizable annular runner of sectional area space 21, even be increased to catalyzer tube 14 bores that disposed quite big, it for example is more than 50% of baffler internal diameter, efficient with bigger catalyzer lift gas purification, shorten catalyzer and reach operating temperature after the required time, also can guarantee the runner sectional area of bigger connecting tube, so that the flow impedance when reducing ventilation, and the effect of raising outlet pipe performance.Below describe the circulation path of institute's exhaust gas discharged in baffler 12 in the outlet pipe 1 that adopts the present embodiment locomotive in detail.
Shown in arrow among Fig. 1 and Fig. 5, after the waste gas of being discharged by engine enters pipe 11, enter catalyzer tube 14 through catalyzer tube upstream extremity 16, this moment, waste gas was subjected to the catalysis of catalyzer and after being cleaned, the opening of the catalyzer tube downstream of flowing through 15 back self-catalysis agent tube downstream 15 is discharged from first anechoic chamber 31 in catalyzer tube 14.Because first anechoic chamber 31 is separated by barrier plate 13b and the 3rd anechoic chamber 33, so, purifying back gas can be by the entrance space of formed general ring-type between the outer wall of tube wall that extends first anechoic chamber 31 connecting tube 17 and catalyzer tube 14, enter formed flow channel space 21 between the outer wall of the tube wall of connecting tube 17 in the 3rd anechoic chamber 33 and catalyzer tube 14, purify afterwards back gas immediately between outer wall by the tube wall that extends second anechoic chamber 32 connecting tube 17 and catalyzer tube 14 formed general Semicircular flow channel space export 23 and flow out in second anechoic chamber 32.Afterwards and since connecting tube 17 bottom pass through barrier plate 13a part and be formed with through port 22, can turn back through this through port 22 and enter in the 3rd anechoic chamber 33 so purify back gas.At last, promptly be discharged from outside baffler 12 after purification back gas enters discharge tube 18 again in the 3rd anechoic chamber 33.
In addition, according to above-mentioned formation of the present invention, with catalyzer tube 14 with connecting tube 17 probably be the inside that the mode of concentric tube is disposed at connecting tube 17, therefore connecting tube 17 also can be used for heat insulation, the heat that can slow down catalyzer tube 14 inner catalysts directly passes to the outer surface of outlet pipe 1, avoids causing scald.
Catalyzer in the catalyzer tube 14 must reach more than certain temperature its catalysis of competence exertion.And in the stage that engine has just started, the catalyst temperature in the catalyzer tube 14 still is about about 25 ℃ normal temperature.Temperature from the waste gas that engine is discharged generally is approximately about 400 ℃, approximately rises to about 600 ℃ through catalysis in catalyzer tube 14.Catalyzer in the catalyzer tube 14 is also heated through wherein waste gas simultaneously raises its temperature gradually, but in just stage of starting of engine, because of temperature is still low, can't bring into play its catalysis fully.But construct formed above-mentioned exhaust flow path by above-mentioned concentric tube among the present invention, purify flow through the once again outside of catalyzer tube of back gas because of forcing, therefore, initial stage in exhaust, behind the Cress during can be between the outer wall of the tube wall of the connecting tube 17 of flowing through and the catalyzer tube 14 formed flow channel space 21 of about about 600 ℃ gas, its high heat self-catalysis agent tube outside is delivered to wherein catalyzer, and can shortens the time that catalyzer reaches operating temperature.As mentioned above, the present invention can utilize above-mentioned structure and exhaust flow path to make catalyzer reach operating temperature rapidly and bring into play its effect.
In addition, start after after a while at engine, because after the temperature in the catalyzer tube constantly is elevated to about about 800 ℃, according to structure of the present invention, also can be by about about 600 ℃ gas of the above-mentioned catalyzer tube outside of flowing through once again, heat in the catalyzer is taken away, reached the effect that reduces catalyst temperature, and avoid catalyzer to melt loss because of overheated.
In the configuration in the existing baffler since connecting tube more more, therefore comparatively complicated, and because of tube pitch from closely so that welding gun can't be deeply to barrier plate with connecting tube the junction carry out full week and weld.But the present invention is by above-mentioned formation, compare with existing mode, not only comparatively simple for the configuration of barrier plate 13a, 13b, catalyzer tube 14, connecting tube 17 etc., and because the punching footpath in the middle of barrier plate 13a, the 13b is big, so connecting tube 17 welding big with caliber size is easy, available welding gun carries out full week welding.In addition, barrier plate 13a, 13b and the junction plane of connecting tube 17 are big among the present invention, and the departure between two barrier plate 13a, 13b reduces, and are more prone to when therefore filling in it in the housing of baffler 12, and manufacturing can significantly promote.
In the mode of execution of the invention described above, be with connecting tube 17 with catalyzer tube 14 probably be that the mode of concentric tube disposes, but shown in Figure 1A-A line sectional drawing of Fig. 2, preferably form it connecting tube 17 of the present invention and be eccentric relation with the catalyzer tube 14 that is positioned at wherein, section probably is semi-moon shaped body.
With the runner sectional area of same connecting tube, the girth of complicated section and circular section are in a ratio of bigger, so the area of noise reflection is bigger, and the effect that is considered to noise reduction is better.Above-mentioned section probably is semi-moon shaped connecting tube 17 among the present invention, and its runner center is comparatively nearer from comparing with circular section with the tube wall identity distance, if under the identical situation of runner sectional area, its impedance meeting of ventilating was less when to adopt section be circular connecting tube.But when probably being in the pipe that semi-moon shaped connecting tube 17 is configured in baffler 12 owing to section, its sectional area can increase a lot.Therefore be configured in the following time of situation in the identical baffler of pipe caliber 12, above-mentioned section probably is the cause that the ventilation impedance in semi-moon shaped connecting tube 17 increases because of sectional area, can be that when circle is little than section, thereby can promote the performance of outlet pipe purification efficiency and engine.
Studies show that according to the present inventor, in connecting tube 17 of the present invention in baffler 12, when configurable maximum basal area was general circular body, the impedance of gas when circulate among was approximately 1.212 * 10
8(μ Q/ π) Pa, μ=gas viscosity factor wherein, Q=gas volume flow rate (m
3/ s), π=Ratio of the circumference of a circle to its diameter, Pa=pressure unit.If but when forming as shown in Figure 3 situation connecting tube 17, when just calculating according to hydraulic diameter (hydraulic diameter) method, its impedance is less than 5.069 * 10
7(μ Q/ π) Pa; When calculating according to maximum inner ellipse method, its impedance is less than 4.069 * 10
7(μ Q/ π) Pa; When calculating according to homalographic eccentric circle (eccentric annulus) method, its impedance is less than 1.174 * 10
6(μ Q/ π) Pa; When calculating according to homalographic concentric circle (concentric annulus) method, its impedance is less than 5.82 * 10
7(μ Q/ π) Pa, all less than with connecting tube 17 of the present invention in baffler 12, the impedance when configurable maximum basal area is general circular body.Therefore be eccentric relation with forming it connecting tube 17 with the catalyzer tube 14 that is positioned at wherein, when section probably is semi-moon shaped body, the impedance in the time of can reducing gas more and in connecting tube 17 in, circulate, the performance of lifting outlet pipe.
Fig. 5 is the schematic perspective view of the locomotive outlet pipe 1 of another mode of execution of the present invention.As shown in Figure 5, but also the opening of self-catalysis agent tube downstream 15 plays extension one guide tube 19, will purify the flow channel space 22 that back gas directly is directed to connecting tube 17.
Technology contents of the present invention and technical characterstic be in above disclosing, yet one of ordinary skill in the art still can be based on the enlightenment of the invention described above and disclosure and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and requirement is contained by aforesaid right.
Claims (6)
1. the outlet pipe of a locomotive, it has a baffler, has in the above-mentioned baffler: the catalyzer tube, be communicated in the floss hole of locomotive engine, be provided with catalyzer in it, supply to purify waste gas, and the gas that is purified is discharged in above-mentioned baffler from above-mentioned engine emissions; By a plurality of anechoic chambers that more than one barrier plate was divided into; A connecting pipe circulates Purge gas between above-mentioned anechoic chamber; One discharge tube is discharged to the outside with the Purge gas of baffler inside, it is characterized by:
Above-mentioned connecting tube is disposed at the outside of above-mentioned catalyzer tube in the mode of surrounding above-mentioned catalyzer tube, utilizes between the outer wall of above-mentioned catalyzer tube and the inwall of above-mentioned connecting tube and form the runner that guiding purifies the back gas communication.
2. the outlet pipe of locomotive according to claim 1, an end that it is characterized by above-mentioned connecting tube is to form to the inner notch of its body and with this notch breach to engage with above-mentioned catalyzer drum outer wall, and in passing through above-mentioned a plurality of barrier plate locates to form a through port that can supply Purge gas to pass through thus.
3. the outlet pipe of locomotive according to claim 1 and 2, the external diameter that it is characterized by above-mentioned catalyzer tube is more than 50% of above-mentioned baffler internal diameter.
4. the outlet pipe of locomotive according to claim 1 and 2 is characterized by and has 3 anechoic chambers.
5. the outlet pipe of locomotive according to claim 1 and 2, it is characterized by above-mentioned connecting tube is to form it to be eccentric relation with the catalyzer tube that is positioned at wherein, section is general semi-moon shaped body.
6. a locomotive is characterized by the outlet pipe that has according to the described locomotive of arbitrary claim in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583779A CN100451305C (en) | 2004-08-13 | 2004-08-13 | Exhaust pipe of locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100583779A CN100451305C (en) | 2004-08-13 | 2004-08-13 | Exhaust pipe of locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1734068A CN1734068A (en) | 2006-02-15 |
| CN100451305C true CN100451305C (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100583779A Expired - Fee Related CN100451305C (en) | 2004-08-13 | 2004-08-13 | Exhaust pipe of locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN100451305C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7081144B2 (en) * | 2017-12-27 | 2022-06-07 | スズキ株式会社 | Engine exhaust |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610658A (en) * | 1992-06-30 | 1994-01-18 | Yamaha Motor Co Ltd | Exhaust system for internal combustion engine with catalyst |
| JPH0610659A (en) * | 1992-06-30 | 1994-01-18 | Yamaha Motor Co Ltd | Exhaust system for internal combustion engine with catalyst |
| CN1188843A (en) * | 1997-01-22 | 1998-07-29 | 本田技研工业株式会社 | Exhauster with catalytic agent |
| US5887424A (en) * | 1996-04-05 | 1999-03-30 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust apparatus for engine |
| JPH11117723A (en) * | 1997-10-09 | 1999-04-27 | Yamaha Motor Co Ltd | Muffler loaded with catalyst |
| JP2000120435A (en) * | 1998-10-13 | 2000-04-25 | Yamaha Motor Co Ltd | Catalyst-built-in muffler |
| JP2000234514A (en) * | 1999-02-15 | 2000-08-29 | Yamaha Motor Co Ltd | Exhaust catalyst for motorcycle |
| JP2003184543A (en) * | 2001-12-13 | 2003-07-03 | Kawasaki Heavy Ind Ltd | Engine muffler and motorcycle |
| CN1499051A (en) * | 2002-10-29 | 2004-05-26 | 本田技研工业株式会社 | Exhauster of I.C. engine |
-
2004
- 2004-08-13 CN CNB2004100583779A patent/CN100451305C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610658A (en) * | 1992-06-30 | 1994-01-18 | Yamaha Motor Co Ltd | Exhaust system for internal combustion engine with catalyst |
| JPH0610659A (en) * | 1992-06-30 | 1994-01-18 | Yamaha Motor Co Ltd | Exhaust system for internal combustion engine with catalyst |
| US5887424A (en) * | 1996-04-05 | 1999-03-30 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust apparatus for engine |
| CN1188843A (en) * | 1997-01-22 | 1998-07-29 | 本田技研工业株式会社 | Exhauster with catalytic agent |
| JPH11117723A (en) * | 1997-10-09 | 1999-04-27 | Yamaha Motor Co Ltd | Muffler loaded with catalyst |
| JP2000120435A (en) * | 1998-10-13 | 2000-04-25 | Yamaha Motor Co Ltd | Catalyst-built-in muffler |
| JP2000234514A (en) * | 1999-02-15 | 2000-08-29 | Yamaha Motor Co Ltd | Exhaust catalyst for motorcycle |
| JP2003184543A (en) * | 2001-12-13 | 2003-07-03 | Kawasaki Heavy Ind Ltd | Engine muffler and motorcycle |
| CN1499051A (en) * | 2002-10-29 | 2004-05-26 | 本田技研工业株式会社 | Exhauster of I.C. engine |
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| Publication number | Publication date |
|---|---|
| CN1734068A (en) | 2006-02-15 |
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Granted publication date: 20090114 Termination date: 20100813 |