CN201786424U - Straight-through particle filtering post processor assembly - Google Patents
Straight-through particle filtering post processor assembly Download PDFInfo
- Publication number
- CN201786424U CN201786424U CN2010205372760U CN201020537276U CN201786424U CN 201786424 U CN201786424 U CN 201786424U CN 2010205372760 U CN2010205372760 U CN 2010205372760U CN 201020537276 U CN201020537276 U CN 201020537276U CN 201786424 U CN201786424 U CN 201786424U
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- straight
- assembly
- particle filtration
- processor
- filtration post
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Abstract
The utility model relates to a straight-through particle filtering post processor assembly including a flange, a end cover, a conical introducing pipe, baffles, a DOC packaging assembly, a housing, a straight-through particle filtering post processor packaging assembly, a noise abatement pipe, a conical exporting pipe and an exhaust tail pipe; the assembly is characterized in that the straight-through particle filtering post processor packaging assembly is arranged in the housing and is supported by two baffles and a connection pipe; the conical introducing pipe is respectively welded to the end cover and the DOC packaging assembly; the conical exporting pipe is respectively welded with the end cover and the straight-through particle filtering post processor packaging assembly. The assembly provided ensures the full use of catalyst, thereby realizing the PM conversion efficiency more than or equal to 60% under every working condition of an engine, meanwhile, the assembly has well effect in noise reduction and has the functions of reducing PM, CO, TCH in the exhaust of diesel oil engines and noise, furthermore, the assembly provided can meet the GB 1495 regulation on vehicle exterior noise and the forth phase emission regulation of GB 17691.
Description
Technical field
The utility model relates to a kind of straight-through particle filtration post-processor assembly, a kind of straight-through particle filtration post-processor assembly of particularly light-duty commercial car and middle bus assembling.
Background technique
At present, domestic light-duty commercial car and middle bus are about to carry out the IV stage Abgasgesetz of GB 17691, and the straight-through particle filtration reprocessing is wherein a kind of technology path.
Summary of the invention
The purpose of this utility model is to provide a kind of straight-through particle filtration post-processor assembly, according to the original emission behaviour of motor, appropriate design preprocessor and noise elimination structure, scientific management engine exhaust flowing in assembly inside, make engine exhaust be evenly distributed to the DOC carrier and the straight-through particle filtration post-processor end face of polyphone, guaranteed making full use of of catalyzer, thereby under each operating mode of motor, realize PM transformation efficiency 〉=60%, assembly indoor design simultaneously has 4 noise elimination cavities, be respectively: resonant cavity, expansion cavity, expansion cavity, resonant cavity, so assembly possesses good noise reduction, the taper delivery line has reduced back pressure.
The technical solution of the utility model is achieved in that a kind of straight-through particle filtration post-processor assembly, is made up of flange, end cap, taper ingress pipe, dividing plate, DOC encapsulation assembly, shell, straight-through particle filtration post-processor encapsulation assembly, hush tube, taper delivery line and tailpipe; It is characterized in that: straight-through particle filtration post-processor encapsulation assembly is in the inside of shell, utilizes two dividing plates and connecting tube to support; The taper ingress pipe welds with end cap, DOC encapsulation assembly respectively; The taper delivery line welds with end cap, straight-through particle filtration post-processor encapsulation assembly respectively.
Described taper ingress pipe has the resonance hole and is communicated with the resonant cavity I, the gap of DOC encapsulation assembly rear end and first straight-through particle filtration post-processor front end forms the expansion cavity II, the gap of first straight-through particle filtration post-processor rear end encapsulation assembly and second straight-through particle filtration post-processor encapsulation assembly front end forms the expansion cavity III, and taper delivery line 9 has the resonance hole and is communicated with the resonant cavity IV.
Good effect of the present utility model is to have guaranteed making full use of of catalyzer, thus under each operating mode of motor, realize the PM transformation efficiency 〉=60%, assembly possesses good noise reduction simultaneously, and the taper delivery line has reduced back pressure; It is the integrated assembly of straight-through particle filtration post-processor and noise elimination structure, have the function that reduces PM in the diesel engine exhaust, CO, TCH and noise simultaneously, assembly can satisfy the noise emitted by accelerating motor vehicle rules of GB 1495 and the IV stage Abgasgesetz of GB 17691 simultaneously.
Description of drawings
Fig. 1 is a straight-through particle filtration post-processor assembly internal structure schematic representation.
Fig. 2 is the auspicious figure of straight-through particle filtration post-processor assembly internal structure.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described: as shown in the figure, straight-through particle filtration post-processor assembly is made up of flange 1, end cap 2, taper ingress pipe 3, dividing plate 4, DOC encapsulation assembly 5, shell 6, straight-through particle filtration post-processor encapsulation assembly 7, hush tube 8, taper delivery line 9 and tailpipe 10.Straight-through particle filtration post-processor encapsulation assembly 7 is in the inside of shell 6, utilizes two dividing plates 4 and connecting tube to support; Taper ingress pipe 3 welds with end cap 2, DOC encapsulation assembly 5 respectively; Taper delivery line 9 welds with end cap 2, straight-through particle filtration post-processor encapsulation assembly 7 respectively.
Described taper ingress pipe 3 has the resonance hole and is communicated with the resonant cavity I, the gap of DOC encapsulation assembly 5 rear ends and first straight-through particle filtration post-processor encapsulation assembly 7 front ends forms the expansion cavity II, the gap of first straight-through particle filtration post-processor encapsulation assembly 7 rear ends and second straight-through particle filtration post-processor encapsulation assembly 7 front end forms the expansion cavity III, and taper delivery line 9 has the resonance hole and is communicated with the resonant cavity IV.
Front and rear cover and shell snap fastener are formed straight-through particle filtration post-processor assembly.
When engine operation, engine exhaust makes engine exhaust evenly arrive DOC carrier end face at first by taper ingress pipe 3, and DOC reduces carbon monoxide (CO), total hydrocarbons (THC) in the exhaust, produces nitrogen dioxide (NO simultaneously
2); Straight-through particle filtration post-processor is caught the particulate matter (PM) in the tail gas then, the NO that utilizes DOC to produce
2Carry out low-temperature burning with PM, passive regeneration and meticulous demarcation by system make exhaust contaminant satisfy the rules limit value.
Claims (2)
1. straight-through particle filtration post-processor assembly is made up of flange, end cap, taper ingress pipe, dividing plate, DOC encapsulation assembly, shell, straight-through particle filtration post-processor encapsulation assembly, hush tube, taper delivery line and tailpipe; It is characterized in that: straight-through particle filtration post-processor encapsulation assembly is in the inside of shell, utilizes two dividing plates and connecting tube to support; The taper ingress pipe welds with end cap, DOC encapsulation assembly respectively; The taper delivery line welds with end cap, straight-through particle filtration post-processor encapsulation assembly respectively.
2. straight-through particle filtration post-processor assembly according to claim 1, it is characterized in that described taper ingress pipe has the resonance hole and is communicated with the resonant cavity I, the gap of DOC encapsulation assembly rear end and first straight-through particle filtration post-processor encapsulation assembly front end forms the expansion cavity II, the gap of first straight-through particle filtration post-processor encapsulation assembly rear end and second straight-through particle filtration post-processor encapsulation assembly front end forms the expansion cavity III, and the taper delivery line has the resonance hole and is communicated with the resonant cavity IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205372760U CN201786424U (en) | 2010-09-21 | 2010-09-21 | Straight-through particle filtering post processor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205372760U CN201786424U (en) | 2010-09-21 | 2010-09-21 | Straight-through particle filtering post processor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786424U true CN201786424U (en) | 2011-04-06 |
Family
ID=43818391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205372760U Expired - Lifetime CN201786424U (en) | 2010-09-21 | 2010-09-21 | Straight-through particle filtering post processor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
-
2010
- 2010-09-21 CN CN2010205372760U patent/CN201786424U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922342A (en) * | 2010-09-21 | 2010-12-22 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
| CN101922342B (en) * | 2010-09-21 | 2015-10-14 | 中国第一汽车集团公司 | Straight-through particle filtration post-processor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20151014 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |