CN2890380Y - Air inlet pipe of diesel engine - Google Patents
Air inlet pipe of diesel engine Download PDFInfo
- Publication number
- CN2890380Y CN2890380Y CNU2005200999337U CN200520099933U CN2890380Y CN 2890380 Y CN2890380 Y CN 2890380Y CN U2005200999337 U CNU2005200999337 U CN U2005200999337U CN 200520099933 U CN200520099933 U CN 200520099933U CN 2890380 Y CN2890380 Y CN 2890380Y
- Authority
- CN
- China
- Prior art keywords
- intake manifold
- diesel engine
- cylinder
- air inlet
- inlet
- 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
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
An air inlet pipe of diesel engine, whose structural characteristics are: a installation seat with an EGR valve is arranged on one end of an inlet collector far from an intake manifold; each cylinder of the inlet collector is arranged with two intake manifolds; when in use, exhaust gas from the EGR valve and fresh air are fully mixed and flow into the inlet collector 2 to keep the inlet pressure stable, and then enter the combustion chamber through the intake manifold 1; thereby improving the gas-filling efficiency of cylinders and securing the equality of air inlet in each cylinder to realize the purpose of reducing emissions.
Description
Technical field:
The utility model relates to internal-combustion engine, particularly a kind of diesel engine intake pipe.
Background technique:
For satisfying the requirement of country to diesel engine Europe III discharging and Europe IV discharging, adopt new technology, that new technology reduces diesel emission is essential, and the suction tude of traditional design is low owing to charging efficiency, and each cylinder air inlet is inhomogeneous, is difficult to satisfy the emission request of increasingly stringent.
Summary of the invention:
At the deficiency that above-mentioned prior art exists, the utility model provides a kind of diesel engine intake pipe, and structure characteristic is: the end away from intake manifold on the intake manifold has the fitting seat that connects the EGR valve.
Described intake manifold goes up every cylinder and arranges two intake manifold; The internal diameter of each intake manifold is 20～30mm.
Described intake manifold's internal diameter is 40～60mm.
The diesel engine intake pipe that the utility model provides can effectively improve the charging efficiency of each cylinder, reduces diesel emission.
Description of drawings:
Fig. 1 is the structural representation of the utility model suction tude.
Fig. 2 is the generalized section along the intake manifold center line.
Embodiment: reach embodiment in conjunction with the accompanying drawings and describe.
As shown in the figure, EGR valve housing 3 is positioned at intake manifold's one end, away from intake manifold 1, thereby makes the waste gas that comes from the EGR valve before entering intake manifold 2, can fully mix with fresh air, has guaranteed the intake uniformity of every cylinder, has improved discharging; Intake manifold's 2 internal diameters are 50mm, make gas before entering the firing chamber, and a constant suction pressure is arranged, and have avoided the suction pressure fluctuation, have guaranteed the uniformity of every cylinder air inflow; Every cylinder has two internal diameters and respectively is the intake manifold 1 of 24mm, and its end is connected with the intake manifold, the other end respectively with cylinder cap on spiral inlet duct link to each other with tangential inlet duct, improved the charging efficiency of each cylinder.
During use, after coming from the waste gas of EGR valve and fresh air and fully mixing, enter intake manifold 2 and make suction pressure keep stable, enter the firing chamber by intake manifold 1 then, thereby guaranteed the uniformity of each cylinder air inlet, realize reducing the purpose of discharging.
Claims (4)
1, a kind of diesel engine intake pipe is made of intake manifold (1) and intake manifold (2), and intake manifold is communicated with the intake manifold, it is characterized in that: have the fitting seat (3) that connects the EGR valve the intake manifold away from an end of intake manifold.
2, diesel engine intake pipe according to claim 1 is characterized in that: the last every cylinder of intake manifold is arranged two intake manifold.
3, diesel engine intake pipe according to claim 1 is characterized in that: the internal diameter of intake manifold is 20～30mm.
4, diesel engine intake pipe according to claim 1 is characterized in that: intake manifold's internal diameter is 40～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200999337U CN2890380Y (en) | 2005-11-11 | 2005-11-11 | Air inlet pipe of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200999337U CN2890380Y (en) | 2005-11-11 | 2005-11-11 | Air inlet pipe of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890380Y true CN2890380Y (en) | 2007-04-18 |
Family
ID=38021039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200999337U Expired - Lifetime CN2890380Y (en) | 2005-11-11 | 2005-11-11 | Air inlet pipe of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890380Y (en) |
-
2005
- 2005-11-11 CN CNU2005200999337U patent/CN2890380Y/en not_active Expired - Lifetime
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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: 20070418 |
|
| EXPY | Termination of patent right or utility model |