CN201354684Y - Air channel of diesel engine cylinder head - Google Patents
Air channel of diesel engine cylinder head Download PDFInfo
- Publication number
- CN201354684Y CN201354684Y CNU2009203010122U CN200920301012U CN201354684Y CN 201354684 Y CN201354684 Y CN 201354684Y CN U2009203010122 U CNU2009203010122 U CN U2009203010122U CN 200920301012 U CN200920301012 U CN 200920301012U CN 201354684 Y CN201354684 Y CN 201354684Y
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- air inlet
- cylinder head
- inlet channel
- engine
- 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 - Fee Related
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Classifications
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- 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
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an air channel of a diesel engine cylinder head, which includes an air inlet channel (1) arranged on the engine cylinder head. The air channel is characterized in that a helix angle (A) of the air inlet channel (1) is 5-5.5 DEG. On the basis of the prior 4JB1 diesel engine, the applicant transforms the helix angle (A) of the air inlet channel of the cylinder head into 5-5.5 DEG, and enlarges the volume of the air inlet channel, so as to reduce the swirl rate and improve the impact efficiency for more sufficient combustion of diesel oil. Proved by the experiments of the applicant, the transformation of the air inlet channel can reduce the combustion temperature of an engine, improve the charge efficiency, and perfect the dynamic property and the economy of the engine, thereby improving the combustion process of the engine, reducing the emission of hazard gases, and upgrading the exhaust emission to the Euro III standards. Compared with the prior art, the utility model has the advantages of low transformation cost, higher combustion efficiency and the conformity of exhaust emission to the Euro III standards.
Description
Technical field
The utility model relates to diesel engine cylinder lid air flue, particularly a kind of 4JB1 diesel engine cylinder lid air flue that meets Europe III exhaust emission standard.
Background technique
Existing 4JB1 diesel engine, exhaust emissions can only reach europe I standard, along with going from bad to worse of environment, to the requirement of exhaust emissions also increasingly stringent, the 4JB1 diesel engine can not satisfy existing emission request, therefore will transform the 4JB1 diesel engine.Shown in Fig. 3 and 4, the air flue helix angle that existing 4JB1 diesel engine cylinder covers is about 8 degree, strength of vortex is 2.7 (Ω), volume is 102 cubic centimetres, it is fast that existence enters the interior air rotational speed of cylinder, the combustion temperature height, oxynitrides and the discharging of charcoal cigarette can not reach the problem of EUROIII Emission Standard.
Summary of the invention
The purpose of this utility model is: provide a kind of and improve combustion efficiency, make exhaust emissions to reach the diesel engine cylinder lid air flue of EUROIII Emission Standard, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: structure comprises and is arranged on the intake duct that cylinder covers that the helix angle of intake duct is 5～5.5 degree.
Above-mentioned diesel engine cylinder lid air flue, the helix angle of intake duct is 5.2 degree.
Above-mentioned diesel engine cylinder lid air flue, the volume of intake duct is 112～115 cubic centimetres.
The claimant transforms the intake duct of cylinder head at existing 4JB1 diesel engine, changes helix angle A into 5～5.5 degree, and increases the volume of intake duct, to reduce swirl rate, improves target efficiency, makes that the burning of diesel oil is more abundant.Through claimant's test, by transformation, can reduce engine combustion temperatures to intake duct, improve charging efficiency, improve engine power performance and Economy, thereby improve engine combustion process, alleviate noxious gas emission, exhaust emissions reaches EUROIII Emission Standard.Therefore compare with prior art, the utlity model has reforming cost low, improve combustion efficiency, make exhaust emissions reach advantages such as EUROIII Emission Standard.
Description of drawings
Accompanying drawing 1 is a side view of the present utility model;
Accompanying drawing 2 is a plan view of the present utility model;
Accompanying drawing 3 is the side view of existing intake duct;
Accompanying drawing 4 is the plan view of existing intake duct.
Embodiment
Embodiment of the present utility model: as depicted in figs. 1 and 2, adopt existing 4JB1 diesel engine structure, the intake duct 1 that cylinder covers is transformed, the helix angle A of intake duct 1 is 5～5.5 degree.Through test, better angle is, helix angle A is 5.2 degree.
In order to make the sufficient combustion of diesel oil, the volume of intake duct 1 be 112～115 cubic centimetres better.
Claims (3)
1. a diesel engine cylinder covers air flue, and structure comprises the intake duct (1) that is arranged on cylinder and covers, and it is characterized in that: the helix angle (A) of intake duct (1) is 5～5.5 degree.
2. diesel engine cylinder lid air flue according to claim 1 is characterized in that: the helix angle (A) of intake duct (1) is 5.2 degree.
3. diesel engine cylinder lid air flue according to claim 1, it is characterized in that: the volume of intake duct (1) is 112～115 cubic centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203010122U CN201354684Y (en) | 2009-03-03 | 2009-03-03 | Air channel of diesel engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203010122U CN201354684Y (en) | 2009-03-03 | 2009-03-03 | Air channel of diesel engine cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354684Y true CN201354684Y (en) | 2009-12-02 |
Family
ID=41411025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009203010122U Expired - Fee Related CN201354684Y (en) | 2009-03-03 | 2009-03-03 | Air channel of diesel engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354684Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291488A (en) * | 2013-06-28 | 2013-09-11 | 吉林大学 | Method of increasing swirl intensity and swirl ratio for diesel engine inlet |
| CN104454221A (en) * | 2013-09-25 | 2015-03-25 | 株式会社久保田 | An air inlet unit of an engine |
-
2009
- 2009-03-03 CN CNU2009203010122U patent/CN201354684Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291488A (en) * | 2013-06-28 | 2013-09-11 | 吉林大学 | Method of increasing swirl intensity and swirl ratio for diesel engine inlet |
| CN103291488B (en) * | 2013-06-28 | 2016-06-08 | 吉林大学 | A kind of method improving diesel engine inlet strength of vortex and swirl ratio |
| CN104454221A (en) * | 2013-09-25 | 2015-03-25 | 株式会社久保田 | An air inlet unit of an engine |
| CN104454221B (en) * | 2013-09-25 | 2018-06-22 | 株式会社久保田 | The inlet duct of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20160303 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |