CN208518756U - New single cylinder cylinder cover for diesel engine - Google Patents
New single cylinder cylinder cover for diesel engine Download PDFInfo
- Publication number
- CN208518756U CN208518756U CN201821076301.2U CN201821076301U CN208518756U CN 208518756 U CN208518756 U CN 208518756U CN 201821076301 U CN201821076301 U CN 201821076301U CN 208518756 U CN208518756 U CN 208518756U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- diesel engine
- cylinder cover
- oil spout
- new single
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of new single cylinder cylinder cover for diesel engine, including cylinder cover, it is mounted on cylinder body, air intake duct, exhaust duct are equipped on the cylinder cover, inclined oil spout road is equipped between the air intake duct and exhaust duct, the air intake duct is variable vortex air inlet air flue, and the mounted angle in the oil spout road is 15 ° -17 °.Design of Inlet is variable vortex air inlet air flue by the new single cylinder cylinder cover for diesel engine, the mounted angle in oil spout road is designed as 15 ° -17 °, on the basis of no change cylinder head size, substantially increase efficiency of combustion, reduce the discharge of NOx, meet three machine air port performance requirement of state, reduces the cost of enterprise.
Description
Technical field:
The utility model relates to a kind of new single cylinder cylinder cover for diesel engine.
Background technique:
Single cylinder diesel structure is simple, and price is cheap, has gradually formed single cylinder engine ranks with Chinese characteristics, it is suitble to
The lower national conditions of purchasing power of the long-term use habit in China rural area and current rural area, but the price competition that single cylinder diesel is low
Also make what enterprise technology upgraded to be short of power with product homogeneity and low-level repetition, and environmental regulation is increasingly in recent years
Strictly, being emitted on before on October 1st, 16 for non-road single cylinder diesel must reach III standard of state, on April 1st, 2016 it
Before cannot sell diesel engine lower than national Ⅲ emission again, and domestic single cylinder diesel nominal power is bigger than normal at present, causes product
Reliability, emission performance be deteriorated, using oil consumption height, thus cannot energy-saving and emission-reduction in use, therefore, single cylinder diesel of new generation
The calibration diesel engine power of science is answered, and designs fuel limit device, studies the key technology of emission controls by improving combustion, discharge is reduced, passes through spray
The matching optimization of oil system, air exchange system and chamber structure, especially by the system for improving single cylinder diesel injection system
Optimization, combustion process carry out Optimization of Diesel Engine comprehensive performance.
State Ⅲ emission standard has tightened up requirement on CO, NO2, HC and particulate matter, and traditional entering and exhaust channel cannot be very
Good meets the requirements, the stabilization of inlet characteristic Diesel Engine Complete Machine performance especially discharge value is influenced it is very big, in order to ensure into
The fluctuation (referring mainly to induction swirl ratio, charge flow rate coefficient) of gas performance is no more than 5%, needs to inlet structure and its processing
Technique does further improvement.
Our company is directed to this case, has applied for a kind of cylinder cap of single-cylinder diesel engine of Patent No. CN205936872U,
Although the cylinder cap of single-cylinder diesel engine can improve efficiency of combustion to a certain extent, the effect is unsatisfactory.
Utility model content:
The purpose of this utility model is that in view of the drawbacks of the prior art, providing one kind mixes fuel spray and air
Even, the higher new single cylinder cylinder cover for diesel engine of efficiency of combustion.
The utility model is achieved by the following technical solution: a kind of new single cylinder cylinder cover for diesel engine, including cylinder
Lid is mounted on cylinder body, and air intake duct, exhaust duct are equipped on the cylinder cover, the air intake duct and exhaust duct it
Between be equipped with inclined oil spout road, the air intake duct is variable vortex air inlet air flue, the mounted angle in the oil spout road is 15 °-
17°。
Since there are fuel injector mounted angles for two valve diesels, adverse effect can be brought to the arrangement of fuel injector line,
Angle between its each spray orifice and fuel injector axis is unequal, causes each spray orifice mass flow discrepancy even, oily beam is different in size, oil spout
Device mounted angle size influences the formation of particulate matter, and in the prior art, the mounted angle for installing the oil spout road of fuel injector is general
All it is 20 °, is found by test of many times, to be uniformly mixed fuel spray as far as possible with air, oil spout road inclination smaller should be got over
Good, the mounted angle in the oil spout road of the utility model is 15 °, and the fire power face of cylinder cap arrangement is constant.
Traditional air intake duct is changed to variable vortex air inlet air flue, and the bore of variable vortex air inlet air flue by the utility model
It is gradually reduced from top to bottom, can solve the contradiction of low NOx drainage and low oil consumption, when vortex switching valve is in intermediate aperture,
Available any medium swirl ratio corresponding with aperture can be exchanged into strong because vortex can change in low speed high load
Vortex is converted to weak vortex, to reduce fuel consumption rate and smoke density, and in high speed and low-medium speed sub-load with drop
The discharge of low burn specific oil consumption and NOx.
The beneficial effects of the utility model are: the new single cylinder cylinder cover for diesel engine by Design of Inlet be variable vortex into
Gas air flue, the mounted angle in oil spout road are designed as 15 ° -17 °, on the basis of no change cylinder head size, substantially increase
Efficiency of combustion reduces the discharge of NOx, meets three machine air port performance requirement of state, reduces the cost of enterprise.
Detailed description of the invention:
Fig. 1 is the elevational cross-sectional view of the new single cylinder cylinder cover for diesel engine of the utility model；
Fig. 2 is the side view cutaway drawing of the new single cylinder cylinder cover for diesel engine of the utility model；
In figure: 1. cylinder covers, 2. air intake ducts, 3. oil spout roads.
Specific embodiment:
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be understood by those skilled in the art with feature, to make apparent specific boundary to the protection scope of the utility model
It is fixed.Direction term that the utility model is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom" etc.,
It is only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the utility model, rather than to
Limit the utility model.
As shown in Figure 1 and Figure 2, a kind of new single cylinder cylinder cover for diesel engine, including cylinder cover 1, are mounted on cylinder body,
The cylinder cover 1 is equipped with air intake duct 2, exhaust duct, and inclined oil spout road is equipped between the air intake duct 2 and exhaust duct
3, the air intake duct 2 is variable vortex air inlet air flue, and the bore of variable vortex air inlet air flue is gradually reduced from top to bottom, the spray
The mounted angle α of oil duct 3 is 15 ° -17 °, and the diameter in oil spout road 3 is preferably 17-18mm, depth 61mm, which makes sky
Gas is more fully mixed with fuel oil, and efficiency of combustion is higher, meets three machine air port performance requirement of state.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (3)
1. a kind of new single cylinder cylinder cover for diesel engine, including cylinder cover, are mounted on cylinder body, it is equipped on the cylinder cover
Air intake duct, exhaust duct are equipped with inclined oil spout road, it is characterised in that: the air inlet between the air intake duct and exhaust duct
Road is variable vortex air inlet air flue, and the mounted angle in the oil spout road is 15 ° -17 °.
2. new single cylinder cylinder cover for diesel engine according to claim 1, it is characterised in that: the mounted angle in the oil spout road
It is 15 °.
3. new single cylinder cylinder cover for diesel engine according to claim 1, it is characterised in that: the variable vortex air inlet air flue
Bore be gradually reduced from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076301.2U CN208518756U (en) | 2018-07-06 | 2018-07-06 | New single cylinder cylinder cover for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076301.2U CN208518756U (en) | 2018-07-06 | 2018-07-06 | New single cylinder cylinder cover for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518756U true CN208518756U (en) | 2019-02-19 |
Family
ID=65334805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821076301.2U Expired - Fee Related CN208518756U (en) | 2018-07-06 | 2018-07-06 | New single cylinder cylinder cover for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518756U (en) |
-
2018
- 2018-07-06 CN CN201821076301.2U patent/CN208518756U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20210706 |