CN2844452Y - Multi-passageway diesel engine exhaust pipe unit - Google Patents
Multi-passageway diesel engine exhaust pipe unit Download PDFInfo
- Publication number
- CN2844452Y CN2844452Y CN 200520124812 CN200520124812U CN2844452Y CN 2844452 Y CN2844452 Y CN 2844452Y CN 200520124812 CN200520124812 CN 200520124812 CN 200520124812 U CN200520124812 U CN 200520124812U CN 2844452 Y CN2844452 Y CN 2844452Y
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- CN
- China
- Prior art keywords
- exhaust
- diesel engine
- exhaust pipe
- outlet pipe
- pipe
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- 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
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Abstract
The utility model discloses a multi-passageway diesel engine exhaust pipe unit, which comprises a plurality of exhaust branch pipes, wherein one end of each of the exhaust branch pipes is respectively connected with an air cylinder of the diesel engine; other ends of the exhaust branch pipes are connected with each other into a whole to form an exhaust pipe; the exhaust pipe is provided with an exhaust pipe pulse converter which is communicated with a turbine supercharger on the diesel engine. The utility model can better solve the problem of the performance deterioration of the diesel engine caused by the back flow of exhaust gases of an engine towards a combustion chamber and solve the problem of exhaust energy loss caused by mutual interference of the exhaust among cylinders of the engine.
Description
Technical field
The utility model relates to a kind of technical field of diesel engine, especially relates to a kind of multi-runner type diesel exhaust gas pipe arrangement that is used for engine exhaust on the diesel engine.
Background technique
It is very extensive that outlet pipe on the diesel engine adopts single channel water jacket outlet pipe at present, but for some multi-cylinder diesel engines, because the firing interval angle between each cylinder of diesel engine is little, as if use 8 very wide cylinder diesels at present, as very easily cause with common single channel water jacket outlet pipe in the pipe gas to the firing chamber to pouring in down a chimney, cause diesel engine performance to worsen; Each cylinder exhaust phase mutual interference simultaneously causes the exhaust energy loss, has reduced the utilization of turbosupercharger to exhaust energy, causes diesel engine performance to descend.And casting manufacturability is poor, reject rate height, cost height.
Summary of the invention
The technical problems to be solved in the utility model has provided a kind of multi-runner type diesel exhaust gas pipe arrangement, and the gas that it can solve the motor discharge preferably pours in down a chimney to the firing chamber, the problem that causes diesel engine performance to worsen; Solved the exhaust energy loss that the exhaust phase mutual interference causes between each cylinder of motor simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is: multi-runner type diesel exhaust gas pipe arrangement, comprise the exhaust branch pipe that many one ends are connected with cylinder of diesel engine respectively, the other end of described exhaust branch pipe interconnects and is formed as one outlet pipe, and described outlet pipe is provided with the outlet pipe pulse converter that is communicated with turbosupercharger on the diesel engine.
As a kind of optimal way, be provided with expansion tube between the described exhaust branch pipe.
As another kind of optimal way, per 4 of described exhaust branch pipe is provided with an outlet pipe pulse converter.
Adopt said structure multi-runner type diesel exhaust gas pipe arrangement, owing to adopted many exhaust branch pipes, prevented that not only exhaust from pouring in down a chimney, and one side has reduced the phase mutual interference of each cylinder exhaust pressure wave, suppressed to disturb the scavenging of other cylinder effectively, eliminated a big design obstacle for the design that increases valve overlap simultaneously by outlet pipe; On the other hand better utilization the exhaust energy of diesel engine, optimized performance.Owing on the basis of this design, can increase valve overlap, so help clearing away the residual pressure in the cylinder on the one hand, increase cylinder charge, really reach the purpose of scavenging; On the other hand, can reduce the temperature of firing chamber inside cylinder lid, exhaust valve, piston head, cylinder sleeve again, improve their life-span.Adopt pulse converter to reduce restriction loss, reduce pressure surge, improved turbine efficiency, improved performance; Eliminate the periodic shock that turbine blade bore simultaneously, improved the working life of turbine.Adopt expansion tube to connect and compensated the axial increment that produces when outlet pipe expands with heat and contract with cold, the life-span of having improved outlet pipe pad and bolt, and eliminated the danger of exhaust gas leakage with this.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Accompanying drawing is a multi-runner type Diesel Engine Exhaust Pipe schematic representation of apparatus of the present utility model.
Embodiment
With reference to accompanying drawing, a kind of multi-runner type diesel exhaust gas pipe arrangement of the present utility model is: comprise the exhaust branch pipe 1 that many one ends are connected with cylinder of diesel engine respectively, the other end of these exhaust branch pipes 1 interconnects, and form one and constitute outlet pipe 12, in order to reduce the loss of diesel exhaust gas throttling, reduce the fluctuation of outlet pipe internal pressure, to improve turbine efficiency, be provided with the outlet pipe pulse converter 3 that is communicated with turbosupercharger on the diesel engine on the outlet pipe 12, simultaneously in order to have compensated the axial increment that produces when outlet pipe expands with heat and contract with cold, improve the life-span of outlet pipe Upper gasket and bolt, eliminate the danger of exhaust gas leakage, be provided with expansion tube 2 between each exhaust branch pipe 1, promptly be provided with to connect on each exhaust branch pipe 1 and use flange 4, expansion tube 2 is arranged between each exhaust branch pipe 1 by flange 4.For the effect of each several part on this multi-runner type of reasonable use diesel exhaust gas pipe arrangement, can adopt per 4 exhaust branch pipes 1 to be provided with an outlet pipe pulse converter 3.
Adopt this multi-runner type diesel exhaust gas pipe arrangement, the waste gas that adopts each exhaust branch pipe 1 to come out from cylinder head quickens, and the waste gas pulse promptly is pooled in the outlet pipe pulse converter 7, is sent in the turbo machine again.Adopt many exhaust branch pipes 1 for the phase mutual interference that reduces each cylinder exhaust pressure wave.The axial increment expansion tube 2 that produces when expanding shrinkage for compensation outlet pipe 1 simultaneously connects.Utilize pulse converter 7 to reduce restriction loss simultaneously, reduce pressure surge, improve turbine efficiency.
Claims (3)
1, multi-runner type diesel exhaust gas pipe arrangement, comprise the exhaust branch pipe (1) that many one ends are connected with cylinder of diesel engine respectively, it is characterized in that: the other end of described exhaust branch pipe (1) interconnects and is formed as one outlet pipe (12), and described outlet pipe (12) is provided with the outlet pipe pulse converter (3) that is communicated with turbosupercharger on the diesel engine.
2, multi-runner type diesel exhaust gas pipe arrangement according to claim 1 is characterized in that: be provided with expansion tube (2) between the described exhaust branch pipe (1).
3, multi-runner type diesel exhaust gas pipe arrangement according to claim 1 and 2 is characterized in that: per 4 of described exhaust branch pipe (1) is provided with an outlet pipe pulse converter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124812 CN2844452Y (en) | 2005-11-18 | 2005-11-18 | Multi-passageway diesel engine exhaust pipe unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124812 CN2844452Y (en) | 2005-11-18 | 2005-11-18 | Multi-passageway diesel engine exhaust pipe unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844452Y true CN2844452Y (en) | 2006-12-06 |
Family
ID=37486404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520124812 Expired - Lifetime CN2844452Y (en) | 2005-11-18 | 2005-11-18 | Multi-passageway diesel engine exhaust pipe unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844452Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337961A (en) * | 2011-10-21 | 2012-02-01 | 康跃科技股份有限公司 | Pulse supercharging turbine device with variable flow channel |
| CN102400757A (en) * | 2011-10-31 | 2012-04-04 | 上海交通大学 | Anti-interference module type quasi pulse turbo charging system |
-
2005
- 2005-11-18 CN CN 200520124812 patent/CN2844452Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337961A (en) * | 2011-10-21 | 2012-02-01 | 康跃科技股份有限公司 | Pulse supercharging turbine device with variable flow channel |
| CN102337961B (en) * | 2011-10-21 | 2013-03-27 | 康跃科技股份有限公司 | Pulse supercharging turbine device with variable flow channel |
| CN102400757A (en) * | 2011-10-31 | 2012-04-04 | 上海交通大学 | Anti-interference module type quasi pulse turbo charging system |
| CN102400757B (en) * | 2011-10-31 | 2013-05-22 | 上海交通大学 | Anti-interference module type quasi pulse turbo charging system |
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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 |
Granted publication date: 20061206 |
|
| EXPY | Termination of patent right or utility model |