CN206280130U - Constant pressure type waste gas recycles six cylinder exhaust pipe structures - Google Patents
Constant pressure type waste gas recycles six cylinder exhaust pipe structures Download PDFInfo
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- CN206280130U CN206280130U CN201621287922.6U CN201621287922U CN206280130U CN 206280130 U CN206280130 U CN 206280130U CN 201621287922 U CN201621287922 U CN 201621287922U CN 206280130 U CN206280130 U CN 206280130U
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- cylinder
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- blast pipe
- exhaust
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Abstract
Six cylinder exhaust pipe structures are recycled the utility model discloses a kind of constant pressure type waste gas, specially：Waste gas enters six air inlets of blast pipe by the exhaust duct on cylinder cap, and the cylinder of engine first, the second cylinder, the passway collected with the 4th cylinder, the 5th cylinder, the 6th cylinder passway of collecting of the 3rd cylinder connect, and make exhaust pipe-shaped into a total air exit.Single exhaust gas recirculation passage is provided with rear side of blast pipe, the passage of waste gas recycling is communicated with total air exit.Traditional blast pipe uses pulse mode air inlet so that the waste gas of each cylinder discharge can not be even into gas recirculation system.Due to eliminating the dividing plate of Liang Ge branches inlet channel, blast pipe is changed to constant pressure type, on the basis of simplifying the internal structure of blast pipe, reducing casting difficulty, improves the emission level of engine.
Description
Technical field
The utility model belongs to engine accessory part, and in particular to a kind of exhaust pipe structure device.
Background technology
With the upgrading to automobile exhaust emission standard, engine has all carried out corresponding technological transformation to improve its discharge
Level, such as intercooler, waste gas recycling.Engine phase would necessarily affect using new technology and increased part
The design for change of parts is closed, blast pipe is exactly one.Used as the important appurtenances of engine, the major function of blast pipe is just
It is to discharge outside cylinder the waste gas after burning, while the support as booster and connection member again.Six cylinder engine typically will row
Six imports of tracheae are made separated type, i.e. a cylinder, two cylinder, three cylinders and collect an outlet passageway, and four cylinders, five cylinders, six cylinders collect
One outlet passageway.The purpose for the arrangement is that according to six fire ignition sequence 1-5-3-6-2-4 of cylinder, it is ensured that each cylinder exhaust interval phase
Etc. booster is continuously entered, booster is driven steadily to operate.In order to improve emission level, current most of engines employ useless
Gas recycle (EGR) technology, will engine discharge a part of waste gas led back from blast pipe, enter back into air inlet pipe relaying
It is continuous to participate in burning.Because having CO in the waste gas of discharge2, vapor, NOx etc., the specific heat of these gases is higher than air inlet, in cylinder
In the case that calory burning is certain, the heat of waste gas absorption is more, so that with the effect for reducing ignition temperature, it is possible to decrease NOx
Generation.In how can guarantee that the waste gas in ETC system even into air inlet pipe, while will not be produced to booster larger again
Influence, here it is problem to be solved in the utility model.
The content of the invention
The purpose of this utility model is to provide a kind of cylinder exhaust pipe structures of constant pressure type EGR six, to ensure that each cylinder waste gas can
Participate in burning even into air inlet pipe, while not interfering with the operation of booster.
The know-why taken to realize this purpose is with structure：Waste gas enters blast pipe by the exhaust duct on cylinder cap
Six air inlets, the cylinder of engine first, the second cylinder, the passway of collecting of the 3rd cylinder are collected with the 4th cylinder, the 5th cylinder, the 6th cylinder
Passway connection, make exhaust pipe-shaped into a total air exit.Single waste gas recycling is provided with rear side of blast pipe logical
Road, the passage of waste gas recycling is communicated with total air exit.
Its innovation is to eliminate the cylinder of engine first to the 3rd and the 4th to the 6th to the utility model compared with the prior art
Two dividing plates of passway of cylinder so that the exhaust passage of six cylinders communicates, can thus make the pressure in blast pipe constant.
Exhaust gas recirculation passage is arranged on the rear side of blast pipe simultaneously, had so both caused that engine contour structures were compact,
Exhaust steam passage of the exhaust gas recirculation passage directly with six cylinders can again communicated.
The beneficial effect of the characteristics of the utility model and generation is：Traditional blast pipe uses pulse mode air inlet so that
The waste gas of each cylinder discharge can not be even into gas recirculation system.Due to eliminating the dividing plate of Liang Ge branches inlet channel,
Blast pipe is changed to constant pressure type, on the basis of simplifying the internal structure of blast pipe, reducing casting difficulty, hair is improve again
The emission level of motivation.
Brief description of the drawings
Fig. 1 is the principle and structure diagram in the utility model main view direction.
Fig. 2 is the principle and structure diagram of the utility model overlook direction.
Specific embodiment
Principle of the present utility model and structure are further described below in conjunction with accompanying drawing and by specific embodiment.
Constant pressure type waste gas recycles six cylinder exhaust pipe structures, and its structure is：Waste gas enters row by the exhaust duct on cylinder cap
Six air inlets 2 of tracheae 1, the cylinder of engine first, the second cylinder, the 3rd cylinder collect passway 3 and the 4th cylinder, the 5th cylinder,
The passway 4 that six cylinders collect connects, and makes exhaust pipe-shaped into a total air exit 5.It is provided with individually useless on rear side of blast pipe
Gas recirculation line 6, the passage of waste gas recycling is communicated with total air exit.
The cross sectional shape of air inlet is rectangle, the L=38mm long of rectangle, M=30mm wide, the fillet R=at four angles of rectangle
7, six air inlets are evenly distributed, and each two air inlet centre distance is N=118mm.
Eliminate the first to the 3rd cylinder and the 4th to the 6th two dividing plates of passway of cylinder, six exhaust passage phases of cylinder
It is logical, make the pressure in blast pipe constant, a pressure stabilizing cavity is formed, the cross sectional shape of pressure stabilizing cavity is for size is identical with air inlet.
The passage of waste gas recycling is devised on rear side of blast pipe, exhaust passage cross sectional shape is the circle of diameter 30mm, such waste gas
The passage of recycling can be communicated with the exhaust steam passage of six cylinders, and the waste gas of each cylinder can be directly entered waste gas recycling
System, participates in burning, improves the discharge of engine.Because exhaust gas pressure increases, the explosion pressure of engine combustion is adjusted, so
Just it is unlikely to influence the operating of booster.
The utility model is applied on 6BG132 series diesels, improves the emission level of engine, while
The casting difficulty of blast pipe is simplified, the cost of blast pipe is reduced.
Claims (1)
1. constant pressure type waste gas recycles six cylinder exhaust pipe structures, it is characterized in that：Waste gas enters exhaust by the exhaust duct on cylinder cap
Manage six air inlets (2) of (1), the cylinder of engine first, the second cylinder, the 3rd cylinder collect passway (3) and the 4th cylinder, the 5th
Passway (4) connection that cylinder, the 6th cylinder collect, makes exhaust pipe-shaped into a total air exit (5)；It is provided with rear side of blast pipe
Single exhaust gas recirculation passage (6), the passage of waste gas recycling is communicated with total air exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287922.6U CN206280130U (en) | 2016-11-29 | 2016-11-29 | Constant pressure type waste gas recycles six cylinder exhaust pipe structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287922.6U CN206280130U (en) | 2016-11-29 | 2016-11-29 | Constant pressure type waste gas recycles six cylinder exhaust pipe structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280130U true CN206280130U (en) | 2017-06-27 |
Family
ID=59074490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621287922.6U Active CN206280130U (en) | 2016-11-29 | 2016-11-29 | Constant pressure type waste gas recycles six cylinder exhaust pipe structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280130U (en) |
-
2016
- 2016-11-29 CN CN201621287922.6U patent/CN206280130U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Six jar blast pipe structures of constant voltage formula exhaust gas recirculation Effective date of registration: 20190612 Granted publication date: 20170627 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |