CN203925755U - A kind of for the throttled-wide exhaust structure of hybrid vehicle - Google Patents
A kind of for the throttled-wide exhaust structure of hybrid vehicle Download PDFInfo
- Publication number
- CN203925755U CN203925755U CN201420017605.7U CN201420017605U CN203925755U CN 203925755 U CN203925755 U CN 203925755U CN 201420017605 U CN201420017605 U CN 201420017605U CN 203925755 U CN203925755 U CN 203925755U
- Authority
- CN
- China
- Prior art keywords
- exhaust
- pass line
- catalyzing unit
- ternary catalyzing
- main pipeline
- 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 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The utility model belongs to automobile technical field, is specifically related to a kind of for the throttled-wide exhaust structure of hybrid vehicle.It comprises the ternary catalyzing unit that is installed on automobile exhaust system inside, the entrance point of described ternary catalyzing unit is connected respectively exhaust main pipeline with outlet end, also comprise exhaust by-pass line, described exhaust by-pass line is provided with control valve, the exhaust main pipeline communication that described exhaust by-pass line two ends are connected with outlet end with ternary catalyzing unit entrance point respectively.The a large amount of fresh airs that flow into after the utility model can give full throttle are not exclusively through being provided with the exhaust main pipeline of ternary catalyzing unit, thereby guarantee there will not be the problem that causes catalytic conversion efficiency to reduce because of large quantity of air reduction catalyst temperature, simultaneously because not having a large amount of fresh airs to flow into trunk roads, only the hot environment of catalyst converter cannot produce more NOx, effectively reduces the discharge amount of NOx.
Description
Technical field
The utility model belongs to automobile technical field, is specifically related to a kind of for the throttled-wide exhaust structure of hybrid vehicle.
Background technique
Mixed power electric car is combined motor, motor, energy accumulating device (storage battery etc.), matched well between them and optimization control, can give full play to the advantage of internal-combustion engines vehicle and electric vehicle, avoiding deficiency separately, is low emission and the low oil consumption automobile of now tool actual development meaning.Motor is when low load operation, the output torque that its fuel consume provides is all for overcoming pumping loss, if can reduce even to eliminate pumping loss, the fuel consume of motor also can significantly reduce so, existing for eliminating the pumping loss of mixed power electric car, effectively reduce the braking force of motor, conventionally adopt motor oil-break WOT technology to reduce pumping loss.
Ternary catalyzing unit is mounted in most important outer purifier in automobile exhaust system, the harmful gases such as CO, the HC that it can be discharged vehicle exhaust and NOx change harmless carbon dioxide, water and nitrogen into by oxidation and reduction, and vehicle exhaust is purified.Adopt after motor oil-break WOT technology, more fresh air is pressed in ternary catalyzing unit, fresh air in ternary catalyzing unit too much not only can reduce catalyst temperature, weaken catalytic conversion efficiency, and and a large amount of fresh airs enters into ternary catalyzing unit, also can cause a high-temperature oxygen-enriched reaction region, impel nitrogen to change in a large number oxynitrides, after being discharged in air, environmental pollution is larger.
Summary of the invention
The purpose of this utility model is exactly the deficiency existing in order to solve above-mentioned background technology, provides a kind of for the throttled-wide exhaust structure of hybrid vehicle.
The technical solution adopted in the utility model is: a kind of for the throttled-wide exhaust structure of hybrid vehicle, comprise the ternary catalyzing unit that is installed on automobile exhaust system inside, the entrance point of described ternary catalyzing unit is connected respectively exhaust main pipeline with outlet end, also comprise exhaust by-pass line, described exhaust by-pass line is provided with control valve, the exhaust main pipeline communication that described exhaust by-pass line two ends are connected with outlet end with ternary catalyzing unit entrance point respectively, exhaust main pipeline and exhaust by-pass line front end are provided with closure.
Further, the caliber of described exhaust by-pass line is the 1/2-3/4 of exhaust main pipe diameter.
The utility model increases exhaust by-pass line in automobile exhaust system, the exhaust main pipeline communication that exhaust by-pass line two ends are connected with ternary catalyzing unit two ends, the a large amount of fresh airs that flow into after giving full throttle are not exclusively through being provided with the exhaust main pipeline of ternary catalyzing unit, thereby guarantee there will not be the problem that causes catalytic conversion efficiency to reduce because of large quantity of air reduction catalyst temperature, simultaneously because not having a large amount of fresh airs to flow into ternary catalyzing unit, only the hot environment of catalyst converter cannot produce more NOx, effectively reduces the discharge amount of NOx.This is simple in structure effectively, when not reducing catalyst converter transformation efficiency, can reduce the pollution to environment.
Accompanying drawing explanation
Fig. 1 is the use phase diagram of the utility model under air throttle of car normal working.
Fig. 2 is the use phase diagram of the utility model under air throttle of car full-gear.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.
As shown in Figure 1 and Figure 2, the utility model comprises ternary catalyzing unit 1 and the exhaust by-pass line 3 that is installed on automobile exhaust system inside, the entrance point of described ternary catalyzing unit 1 is connected respectively exhaust main pipeline 2 with outlet end, the exhaust main pipeline 2 that described exhaust by-pass line 3 two ends are connected with outlet end with ternary catalyzing unit 1 entrance point is respectively communicated with, and exhaust by-pass line 3 is arranged in parallel with ternary catalyzing unit 1.Described exhaust by-pass line 3 is provided with control valve 4, closing and opening and realize the closing with open-minded of exhaust by-pass line 3 by control valve 4.The object that the fresh air that the pipe diameter size of exhaust by-pass line 3 enters in the time of need to meeting as far as possible by motor oil-break closure 5 standard-sized sheet is discharged from exhaust by-pass line, therefore the size of exhaust by-pass line 3 calibers depends on size, trend and the layout of exhaust main pipeline 2 calibers, and in the present embodiment, the pipe diameter size of exhaust by-pass line is the 1/2-3/4 of exhaust main pipe diameter.
During use, exhaust by-pass line 3 is only just open-minded after certain retard time at motor oil-break closure 5 standard-sized sheets, so not only can make fresh air part flow through and not exclusively through being provided with the exhaust main pipeline 2 of ternary catalyzing unit from exhaust by-pass line 3, and what can guarantee to flow through exhaust by-pass line 3 is fresh air rather than burning produces in motor tail gas.Fresh air part flows through from exhaust by-pass line 3, can weaken to a certain extent the cooling effect of fresh air to ternary catalyzing unit, because do not had a large amount of fresh airs to flow into exhaust main pipeline 2, only hot environment is to produce more NOx simultaneously, reduces the pollution to environment.When motor oil-break closure 5 standard-sized sheets and exhaust by-pass line 3 must guarantee that motor is switched to oil-break WOT from working state the interval time between opening, the tail gas of remnants all transforms and drains from ternary catalyzing unit, it is the velocity of discharge that depends on tail gas interval time, under the prerequisite of discharging on exhaust main main line, get as far as possible littlely guaranteeing that tail gas is walked completely, be 0.3-1s the retard time that the present embodiment adopts.At motor oil-break closure, exit when full-gear rear engine starts power output and close logical exhaust by-pass line, avoid tail gas through ternary catalyzing unit, just by logical exhaust by-pass line, not discharge.
The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (2)
1. one kind for the throttled-wide exhaust structure of hybrid vehicle, comprise the ternary catalyzing unit (1) that is installed on automobile exhaust system inside, the entrance point of described ternary catalyzing unit (1) is connected respectively exhaust main pipeline (2) with outlet end, it is characterized in that: also comprise exhaust by-pass line (3), described exhaust by-pass line (3) is provided with control valve (4), the exhaust main pipeline (2) that described exhaust by-pass line (3) two ends are connected with outlet end with ternary catalyzing unit (1) entrance point is respectively communicated with, exhaust main pipeline (2) and exhaust by-pass line (3) front end are provided with closure (5).
2. according to claim 1 a kind of for the throttled-wide exhaust structure of hybrid vehicle, it is characterized in that: the caliber of described exhaust by-pass line (3) is the 1/2-3/4 of exhaust main pipeline (2) caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017605.7U CN203925755U (en) | 2014-01-13 | 2014-01-13 | A kind of for the throttled-wide exhaust structure of hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017605.7U CN203925755U (en) | 2014-01-13 | 2014-01-13 | A kind of for the throttled-wide exhaust structure of hybrid vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925755U true CN203925755U (en) | 2014-11-05 |
Family
ID=51821578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017605.7U Expired - Lifetime CN203925755U (en) | 2014-01-13 | 2014-01-13 | A kind of for the throttled-wide exhaust structure of hybrid vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150296A (en) * | 2017-12-27 | 2018-06-12 | 潍柴动力股份有限公司 | Binary channels SCR catalytic convention designs and its control method |
| CN111425286A (en) * | 2020-03-31 | 2020-07-17 | 广西玉柴机器股份有限公司 | Method and system for controlling tail gas emission of gas engine |
| CN113982722A (en) * | 2021-09-26 | 2022-01-28 | 天津大学 | Bypass oil-saving emission-reducing device of three-way catalyst and control method |
-
2014
- 2014-01-13 CN CN201420017605.7U patent/CN203925755U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150296A (en) * | 2017-12-27 | 2018-06-12 | 潍柴动力股份有限公司 | Binary channels SCR catalytic convention designs and its control method |
| CN111425286A (en) * | 2020-03-31 | 2020-07-17 | 广西玉柴机器股份有限公司 | Method and system for controlling tail gas emission of gas engine |
| CN113982722A (en) * | 2021-09-26 | 2022-01-28 | 天津大学 | Bypass oil-saving emission-reducing device of three-way catalyst and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |