CN203730104U - Exhaust muffler for engine - Google Patents
Exhaust muffler for engine Download PDFInfo
- Publication number
- CN203730104U CN203730104U CN201420115042.5U CN201420115042U CN203730104U CN 203730104 U CN203730104 U CN 203730104U CN 201420115042 U CN201420115042 U CN 201420115042U CN 203730104 U CN203730104 U CN 203730104U
- Authority
- CN
- China
- Prior art keywords
- housing
- expansion chamber
- central diaphragm
- engine exhaust
- runs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 abstract 7
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000002912 waste gas Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses an exhaust muffler for an engine. The exhaust muffler comprises a shell, a catalyst tube, a tail tube and a delivery tube, wherein a center spacer is arranged in the shell; the outer end of the catalyst tube is fixedly arranged at an inlet port of the shell, and penetrates through the center spacer in a close fit way; the outer end of the tail tube is fixedly arranged at an outlet port of the shell, and penetrates through the center spacer in the close fit way. According to the exhaust muffler, the catalyst tube and the tail tube penetrate through the center spacer in the close fit way only, and can move relative to the center spacer to effectively avoid the center spacer being pulled and damaged when axially extending and deforming under the action of heat, so that the aims of avoiding the production of abnormal sounds and influence on the suppression of noise and exhaust gas, which are caused by damage to the center spacer, and improving the durability are fulfilled.
Description
Technical field
The utility model relates to a kind of muffler of engine, espespecially a kind of engine exhaust baffler for motorcycle.
Background technique
Refer to shown in Figure 11 and Figure 12, the engine exhaust baffler of prior art includes a housing 91, a catalyst pipe 94, a tail pipe 95, a transport tube 96, housing 91 is elongated tubular, and be respectively equipped with a suction port 911 and an air outlet 912 in front end and rear end, housing 91 is interior by the front front dividing plate 921 that is then sequentially provided with, one central diaphragm 922 and a rear bulkhead 923, these dividing plates 921, 922, 923 intervals arrange, and be all welded in the internal face of housing 91, central diaphragm 922 is separated into the inner space of housing 91 the front expansion chamber 931 and the rear expansion chamber 932 that do not communicate, front dividing plate 921 and rear bulkhead 923 lay respectively in front expansion chamber 931 and rear expansion chamber 932, and be all provided with hole on front dividing plate 921 and rear bulkhead 923, therefore two expansion chambers 931, 932 are not all further separated into the space not communicating again, catalyst pipe 94, tail pipe 95 and transport tube 96 are all located in housing 91, catalyst pipe 94 one end are fixedly welded on suction port 911, and the other end runs through three dividing plates 921,922,923 and is arranged in rear expansion chamber 932, and catalyst pipe 94 and three dividing plates 921,922,923 are welded and fixed, tail pipe 95 one end are fixedly welded on air outlet 912, and the other end runs through central diaphragm 922 and rear bulkhead 923 and is arranged in front expansion chamber 931, and tail pipe 95 is welded and fixed with central diaphragm 922, have gap can allow gas pass through between tail pipe 95 and rear bulkhead 923, transport tube 96 runs through front dividing plate 921 and central diaphragm 922, and two ends lay respectively in front expansion chamber 931 and rear expansion chamber 932, and transport tube 96 is welded and fixed with front dividing plate 921 and central diaphragm 922.
When use, gas is expansion chamber 932 from catalyst pipe 94 enters into, and then by the hole on rear bulkhead 923, enters into afterwards transport tube 96 and to front expansion chamber 931, then by the hole on front dividing plate 921, finally enters tail pipe 95 and then discharge.
But the muffler of prior art has following shortcoming:
One, when use, hot gas can cause each element to expand, and because catalyst pipe 94 and tail pipe 95 are all long tube body, therefore can be towards the extensional of axial both sides, and when catalyst pipe 94 and tail pipe 95 are during opposite to each other towards housing 91 central extensional, just can be pullled the other way around with the central diaphragm 922 that catalyst pipe 94 and tail pipe 95 are welded and fixed, and then may deformation fracture and damage, so just can cause different sound and the inhibition usefulness that affects noise, waste gas.
They are two years old, each dividing plate 921, 922, 923 sheathed corresponding bodys 94, 95, 96 places are all surrounded with a sheathed flange 9222, taking central diaphragm 922 and catalyst pipe 94 as example, in the time that central diaphragm 922 keeps vertical with housing 91, sheathed flange 9222 is coated catalyst pipe 94 intactly, and can effectively resist the dilatancy after catalyst pipe 94 is heated, if but central diaphragm 922 fails to keep vertical with housing 91, only there is the sheathed flange 9222 of part to abut to catalyst pipe 94, therefore after expanding after catalyst pipe 94 is heated, just may cause sheathed flange 9222 bend or wear and tear, and then cause reaming (as shown in figure 13), for addressing the above problem, the periphery of central diaphragm 922 is vertically bent with one against flange 9221, is resisted against the internal face of housing 91 against flange 9221, and it is used to make central diaphragm 922 keep vertical with housing 91 before welding, but, only can guarantee that against flange 9221 central diaphragm 922 can be towards toppling over against the bearing of trend of flange 9221, and cannot avoid central diaphragm 922 to topple over towards the opposite direction of the bearing of trend against flange 9221, be therefore still difficult to guarantee that central diaphragm 922 keeps vertical, and front dividing plate 921 and rear bulkhead 923 also have identical problem.
Model utility content
Because shortcoming and the deficiency of aforesaid prior art, the utility model provides a kind of engine exhaust baffler, causes central diaphragm to damage can effectively avoid pullling central diaphragm after catalyst pipe and tail pipe temperature distortion.
For reaching above-mentioned goal of the invention, the technological means that the utility model adopts is a kind of engine exhaust baffler of design, wherein comprises:
One housing, it includes an inner space, a suction port and an air outlet, is provided with a central diaphragm in housing, and central diaphragm is separated into the inner space of housing the front expansion chamber and the rear expansion chamber that do not communicate;
One catalyst pipe, its outer end is fixedly arranged on the suction port of housing, and catalyst pipe runs through central diaphragm tightly;
One tail pipe, its outer end is fixedly arranged on the air outlet of housing, and tail pipe runs through central diaphragm tightly;
One transport tube, it runs through central diaphragm tightly.
The utility model has the advantage of, by making catalyst pipe and tail pipe only for running through tightly central diaphragm, therefore in the time that catalyst pipe and tail pipe extend axially distortion because of heat, catalyst pipe and tail pipe can move relative to central diaphragm, and can effectively avoid pullling and injuring central diaphragm, the utility model reaches by this to be avoided central diaphragm to damage and causes different sound and impact to suppress the object of noise, waste gas and lifting serviceability.
Furthermore, described engine exhaust baffler, wherein: central diaphragm includes a plate body and against flange, against the vertical periphery that forms in plate body that extends of flange, is resisted against the internal face of housing against flange; The internal face of housing is provided with multiple positioning parts, and positioning part is resisted against the plate body of central diaphragm, and the relative both sides of positioning part and the plate body being positioned at against flange.By this in the time that the utility model is made, before the plate body of central diaphragm is welded in the internal face of housing, because a side of plate body sees through the orthogonal internal face that is resisted against housing against flange, the opposite side of plate body is resisted against positioning part, therefore can guarantee that the relative housing of plate body is vertical.
Brief description of the drawings
Fig. 1 is the first embodiment's of the present utility model sectional axonometric drawing.
Fig. 2 is the first embodiment's of the present utility model side cutaway view.
Fig. 3 is the first embodiment's of the present utility model upper pseudosection.
Fig. 4 is the top view after the first embodiment's of the present utility model removal collet.
Fig. 5 be the first embodiment of the present utility model fixing part look closely sectional drawing.
Fig. 6 is the Zoom Side pseudosection of the first embodiment's of the present utility model front dividing plate.
Fig. 7 is the Zoom Side pseudosection of the first embodiment's of the present utility model central diaphragm.
Fig. 8 is the Zoom Side pseudosection of the first embodiment's of the present utility model rear bulkhead.
Fig. 9 is the Zoom Side pseudosection of the second embodiment's of the present utility model central diaphragm.
Figure 10 is the Zoom Side pseudosection of the 3rd embodiment's of the present utility model central diaphragm.
Figure 11 is the side cutaway view of the engine exhaust baffler of prior art.
Figure 12 is the Zoom Side pseudosection of the central diaphragm of the engine exhaust baffler of prior art.
Figure 13 is the reaming schematic diagram of the engine exhaust baffler of prior art.
Embodiment
Below coordinate accompanying drawing and preferred embodiment of the present utility model, further set forth the technological means that the utility model is taked for reaching predetermined goal of the invention.
Refer to shown in Fig. 1, engine exhaust baffler of the present utility model includes a housing 10, a catalyst pipe 40, a tail pipe 50, a transport tube 60 and a collet 70.
Refer to shown in Fig. 1 to Fig. 4, aforesaid housing 10 includes a body 11, a protecgulum 12 and a bonnet 13, and protecgulum 12 and bonnet 13 are sheathed on respectively the rear and front end of body 11, and protecgulum 12, body 11 and bonnet 13 are coated out an inner space; Between protecgulum 12 and body 11 front ends, be coated out a front spin chamber 122, protecgulum 12 is provided with a suction port 121; Between bonnet 13 and body 11 rear ends, be coated out a rear spin chamber 132, bonnet 13 is provided with an air outlet 131.
The wall of body 11 run through be provided with multiple mesh 111(as shown in Figure 4), and in body 11, be provided with a front dividing plate 21, one central diaphragm 22 and a rear bulkhead 23, front dividing plate 21, central diaphragm 22 and rear bulkhead 23 by front then sequentially interval arrange, and be all welded in the internal face of body 11, central diaphragm 22 is separated into the inner space of housing 10 the front expansion chamber 31 and the rear expansion chamber 32 that do not communicate, front dividing plate 21 and rear bulkhead 23 lay respectively in front expansion chamber 31 and rear expansion chamber 32, and be all provided with hole on front dividing plate 21 and rear bulkhead 23, therefore two expansion chambers 31, 32 are not all further separated into the space not communicating again, front expansion chamber 31 communicates with front spin chamber 122, rear expansion chamber 32 communicates with rear spin chamber 132, central diaphragm 22 includes a plate body 221 and against flange 222, forms in the periphery of plate body 221, and be resisted against the internal face of body 11 against the vertical bending of flange 222, the internal face of body 11 is provided with multiple positioning parts 24, and these positioning parts 24 arrange (as shown in Figure 5) around interval, and positioning part 24 is resisted against plate body 221, and positioning part 24 and the relative both sides that are positioned at plate body 221 against flange 222, in the present embodiment, each positioning part 24 is an independent component, and it runs through and is fixed on body 11, and protrudes from the internal face of body 11, but not as limit, only wants and to make the relative body 11 of plate body 221 keep vertical against plate body 221, in addition, positioning part 24 can be welded or the mode such as riveted is fixed on body 11, but is not limited with welding and riveted.
Refer to shown in Fig. 1, Fig. 2 and Fig. 6 to Fig. 8, aforesaid catalyst pipe 40, the all-round suction port 121 that is fixedly welded on protecgulum 12 in its outer end, catalyst pipe 40 runs through front dividing plate 21, central diaphragm 22 and rear bulkhead 23 tightly, and the inner is arranged in rear spin chamber 132; Drive fit herein refers between the hole wall of each dividing plate 21,22,23 and the outer wall of catalyst pipe 40, does not have the gap that can allow gas pass through.
Aforesaid tail pipe 50, the all-round air outlet 131 that is fixedly welded on bonnet 13, its outer end, tail pipe 50 runs through rear bulkhead 23, and runs through tightly central diaphragm 22, and tail pipe 50 the inners are arranged in front expansion chamber 31; Drive fit herein refers to equally between the hole wall of central diaphragm 22 and the outer wall of tail pipe 50, does not have the gap that can allow gas pass through; In addition, between tail pipe 50 outer wall and the perforation of rear bulkhead 23, having gap can allow gas pass through.
Refer to shown in Fig. 1 to Fig. 3, aforesaid transport tube 60 runs through front dividing plate 21 and central diaphragm 22 tightly, and two ends lay respectively in front spin chamber 122 and rear expansion chamber 32; Drive fit herein refers to equally between the hole wall of each dividing plate 21,22 and the outer wall of transport tube 60, does not have the gap that can allow gas pass through.
Aforesaid collet 70 is sheathed on outside the body 11 of housing 10, and connects protecgulum 12 and bonnet 13, between the body 11 of collet 70 and housing 10, is provided with thermal-protective material (not shown).
Refer to shown in Fig. 1 and Fig. 2, when the utility model uses, gas is spin chamber 132 from catalyst pipe 40 enters into, after revolution, enter backward rear expansion chamber 32 and pass through the hole of rear bulkhead 23, enter into afterwards transport tube 60 and to front spin chamber 122, revolution enters front expansion chamber 31 forward afterwards, then, by the hole of front dividing plate 21, finally enters tail pipe 50 and then discharges.
Refer to shown in Fig. 1, Fig. 2 and Fig. 7, in using process, if catalyst pipe 40 and tail pipe 50 are because heat is during towards central diaphragm 22 extensional, because central diaphragm 22 is only drive fit with catalyst pipe 40 and tail pipe 50, therefore catalyst pipe 40 and tail pipe 50 can move relative to central diaphragm 22, and can effectively avoid pullling and injure central diaphragm 22, the utility model reaches the object of avoiding central diaphragm 22 to damage and to cause different sound and impact inhibition noise, waste gas and lifting serviceability by this.
In addition, when the utility model is made, before the plate body 221 of central diaphragm 22 is welded in the internal face of body 11, because a side of plate body 221 sees through the orthogonal internal face that is resisted against body 11 against flange 222, the opposite side of plate body 222 is resisted against positioning part 24, therefore can guarantee that the relative body 11 of plate body 221 is vertical; So, in the time of each body 40,50,60 expanded by heating, just can avoid central diaphragm 22 to produce the phenomenon of reaming.
Refer to shown in Fig. 9, be below the second embodiment of the present utility model, itself and the first embodiment are roughly the same, but each positioning part 24A is not fixed on the internal face on body 11A, a but dismountable tool, and after central diaphragm 22A has welded, just this tool can be removed, so can make equally central diaphragm 22A and body 11A keep vertical.
Referring to shown in Figure 10, is below the 3rd embodiment of the present utility model, and itself and the first embodiment are roughly the same, but each positioning part 24B outstanding internal face that forms in body 11B that is one; Furthermore, in the present embodiment, be the mode with piercing, inwardly go out a punching in the outer wall of body 11B, but not as limit.
In other embodiments, front dividing plate and rear bulkhead also can be as central diaphragms and are had against the positioning part of flange and aforementioned various mode of executions, the relative body of plate body that can guarantee by this front dividing plate and rear bulkhead is vertical, and then avoids front dividing plate and rear bulkhead to produce the phenomenon of reaming.
The above is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, under any, in technical field, have and conventionally know the knowledgeable, not departing from the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
[reference character]
10 housing 11 bodies
111 mesh 12 protecgulums
The front spin chamber of 121 suction port 122
13 bonnet 131 air outlets
The front dividing plate of 132 rear spin chamber 21
22 central diaphragm 221 plate bodys
222 against flange 23 rear bulkheads
The 24 front expansion chambers in positioning part 31
32 rear expansion chamber 40 catalyst pipes
50 tail pipe 60 transport tubes
70 collets
11A body 22A central diaphragm
24A positioning part
11B body 24B positioning part
91 housing 911 suction ports
The 912 front dividing plates in air outlet 921
922 central diaphragms 9221 are against flange
9222 sheathed flange 923 rear bulkheads
The rear expansion chamber of 931 front expansion chamber 932
94 catalyst pipe 95 tail pipes
96 transport tubes.
Claims (10)
1. an engine exhaust baffler, is characterized in that, comprises:
One housing, it includes an inner space, a suction port and an air outlet, is provided with a central diaphragm in housing, and central diaphragm is separated into the inner space of housing the front expansion chamber and the rear expansion chamber that do not communicate;
One catalyst pipe, its outer end is fixedly arranged on the suction port of housing, and catalyst pipe runs through central diaphragm tightly;
One tail pipe, its outer end is fixedly arranged on the air outlet of housing, and tail pipe runs through central diaphragm tightly;
One transport tube, it runs through central diaphragm tightly.
2. engine exhaust baffler as claimed in claim 1, is characterized in that:
Central diaphragm includes a plate body and against flange, against the vertical periphery that forms in plate body that extends of flange, is resisted against the internal face of housing against flange;
The internal face of housing is provided with multiple positioning parts, and positioning part is resisted against the plate body of central diaphragm, and the relative both sides of positioning part and the plate body being positioned at against flange.
3. engine exhaust baffler as claimed in claim 2, is characterized in that, the outstanding internal face that forms in housing of each positioning part one.
4. engine exhaust baffler as claimed in claim 2, is characterized in that, each positioning part is an independent component, and runs through housing, and protrudes from the internal face of housing.
5. engine exhaust baffler as claimed in claim 4, is characterized in that, each positioning part is a dismountable tool.
6. the engine exhaust baffler as described in any one in claim 2 to 5, it is characterized in that, housing includes a body, a protecgulum and a bonnet, and protecgulum and bonnet are located at respectively the rear and front end of body, and the inner space of housing forms between protecgulum, body and bonnet; Front expansion chamber and the rear expansion chamber of housing form in body, and the positioning part of housing is located on the internal face of body; Between protecgulum and body front end, be coated out a front spin chamber, front spin chamber communicates with front expansion chamber, and the suction port of housing is located on protecgulum; Between bonnet and body rear end, be coated out a rear spin chamber, rear spin chamber communicates with rear expansion chamber, and the air outlet of housing is located on bonnet.
7. engine exhaust baffler as claimed in claim 6, is characterized in that:
The inner of catalyst pipe is arranged in rear spin chamber;
The inner of tail pipe is arranged in front expansion chamber;
The two ends of transport tube lay respectively in front spin chamber and rear expansion chamber.
8. the engine exhaust baffler as described in any one in claim 1 to 5, it is characterized in that, in housing, be further provided with a front dividing plate and a rear bulkhead, front dividing plate and rear bulkhead lay respectively in the front expansion chamber and rear expansion chamber of housing, and on front dividing plate and rear bulkhead, are all provided with hole; Catalyst pipe runs through front dividing plate and rear bulkhead tightly; Tail pipe runs through rear bulkhead; Transport tube runs through front dividing plate tightly.
9. the engine exhaust baffler as described in any one in claim 1 to 5, is characterized in that, further includes a collet, and it is sheathed on outside housing, and is provided with thermal-protective material between collet and housing.
10. the engine exhaust baffler as described in any one in claim 1 to 5, is characterized in that, the wall of housing runs through and is provided with multiple mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115042.5U CN203730104U (en) | 2014-03-13 | 2014-03-13 | Exhaust muffler for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115042.5U CN203730104U (en) | 2014-03-13 | 2014-03-13 | Exhaust muffler for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730104U true CN203730104U (en) | 2014-07-23 |
Family
ID=51200184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420115042.5U Expired - Lifetime CN203730104U (en) | 2014-03-13 | 2014-03-13 | Exhaust muffler for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829810A (en) * | 2016-09-15 | 2018-03-23 | 卡特彼勒公司 | Muffler with bivalve housing |
| CN108942092A (en) * | 2018-05-24 | 2018-12-07 | 东莞荣兴五金制品有限公司 | A kind of manufacturing method and muffler of muffler |
-
2014
- 2014-03-13 CN CN201420115042.5U patent/CN203730104U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829810A (en) * | 2016-09-15 | 2018-03-23 | 卡特彼勒公司 | Muffler with bivalve housing |
| CN107829810B (en) * | 2016-09-15 | 2020-05-05 | 卡特彼勒公司 | Muffler with double shell housing |
| CN108942092A (en) * | 2018-05-24 | 2018-12-07 | 东莞荣兴五金制品有限公司 | A kind of manufacturing method and muffler of muffler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8172039B2 (en) | Muffler for vehicle | |
| JP6116982B2 (en) | Vehicle muffler | |
| CN102235222A (en) | Silencer | |
| CN102753793B (en) | Acoustic filter for internal combustion engine | |
| CN203730104U (en) | Exhaust muffler for engine | |
| CN102900491A (en) | Automobile silencer | |
| CN202596839U (en) | Automobile silencer | |
| JP5424054B2 (en) | Vehicle exhaust system | |
| CN103195549B (en) | A kind of silencer muffler partition plate and silencing apparatus | |
| CN202108561U (en) | Exhaust muffler for automobile | |
| CN102865125B (en) | Automobile muffler | |
| CN204113392U (en) | A kind of automotive muffler | |
| CN204716332U (en) | Impedance composite muffler | |
| JP6373062B2 (en) | Silencer for internal combustion engine | |
| KR20110023466A (en) | Muffler for vehicle exhaust system | |
| CN202937339U (en) | Novel silencer casing | |
| CN202326084U (en) | Air inlet muffler for air compressor of light-weight truck air brake system | |
| CN202273730U (en) | Automobile muffler | |
| CN201891467U (en) | Silencer | |
| JP6513988B2 (en) | Welded connection structure of pipe | |
| CN105888775A (en) | Automobile exhausting silencer | |
| CN104675477A (en) | Silencer | |
| CN205823382U (en) | A kind of injection acoustic filter | |
| CN204716342U (en) | A kind of after silencer | |
| CN214577315U (en) | Silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180622 Address after: Kaohsiung City, Taiwan, China Co-patentee after: CHANGZHOU KWANG YANG MOTOR Co.,Ltd. Patentee after: KWANG YANG MOTOR Co.,Ltd. Address before: Kaohsiung City, Taiwan, China Patentee before: KWANG YANG MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |