CN202611965U - Centrally-mounted arrangement structure of gasoline direct injection engine fuel injector - Google Patents
Centrally-mounted arrangement structure of gasoline direct injection engine fuel injector Download PDFInfo
- Publication number
- CN202611965U CN202611965U CN 201220067184 CN201220067184U CN202611965U CN 202611965 U CN202611965 U CN 202611965U CN 201220067184 CN201220067184 CN 201220067184 CN 201220067184 U CN201220067184 U CN 201220067184U CN 202611965 U CN202611965 U CN 202611965U
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- oil sprayer
- spark plug
- mounting hole
- direct injection
- fuel injector
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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.)
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- Ignition Installations For Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a centrally-mounted arrangement structure of a gasoline direct injection engine fuel injector. A fuel injector installing hole and a spark plug installing hole are arranged on a cylinder cover, the fuel injector is perpendicular to the bottom surface of the cylinder cover and installed in the fuel injector installing hole on the cylinder cover, a spark plug is installed in the spark plug installing hole on the cylinder cover in an inclined mode, and the distance between a fuel injection nozzle at the bottom of the fuel injector and a spark plug electrode at the bottom of the spark plug is in a range from 13.8mm to 14.5mm. The centrally-mounted arrangement structure of the gasoline direct injection engine fuel injector has the advantages that the engine structure is compact, the assembly and disassembly of the fuel injector are convenient, the fuel consumption of the engine can be lowered, the problem that engine oil is diluted caused by the fact that fuel spray beam is injected on the cylinder wall is effectively solved, and the lean combustion technology can be achieved.
Description
Technical field
The utility model belongs to engine art, is specifically related to a kind of mid-layout of in-cylinder direct injection petrol engine oil sprayer.
Background technique
Along with the lifting of global auto output and technical merit, client also improves the requirement of power character, Economy and the emission performance of automobile thereupon, and motor is as the heart of automobile, supports for each index of correlation of automobile provides the most directly.To the motor that influences one of vehicle dynamic quality, Economy and emission performance major reason; The in-cylinder direct injection technology becomes inexorable trend; Reasonably the oil sprayer setting type can improve the petrolic burning of in-cylinder direct injection significantly; Thereby, and effectively improve the fuel economy and the emission performance of automobile for automobile provides more powerful motivation output.Therefore, at present, in the direct injection technology field, each car enterprise is also increasingly high to the requirement of oil sprayer setting type in the petrol engine engine cylinder.
At present, petrol engine generally adopts gas-duct jetting, and the gasoline spraying contacts with the air flue wall and is prone to form drop inflow firing chamber, influences combustion efficiency, makes deterioration of emission; Part in-cylinder direct injection petrol engine oil sprayer adopts the side setting type more, oil sprayer nozzle opening and spray cone angle difficult design, and also gasoline spraying drenches cylinder wall easily, causes oil dilution, brings huge test for the lubrication system of motor.
The model utility content
The purpose of the utility model provides a kind of mid-layout of in-cylinder direct injection petrol engine oil sprayer, can reduce the fuel consume of motor, has effectively improved oily bundle and has been injected in the problem that causes oil dilution on the cylinder wall.
The purpose of the utility model is to realize through following technological scheme:
A kind of mid-layout of in-cylinder direct injection petrol engine oil sprayer; Cylinder head is provided with mounting hole of oil sprayer and spark plug mounting hole; Oil sprayer is installed in the mounting hole of oil sprayer on the cylinder head perpendicular to the cylinder head bottom surface, and spark plug tilts to be installed in the spark plug mounting hole on the cylinder head; Distance between the sparking-plug electrode of the oil nozzle of oil sprayer bottom and spark plug bottom is 13.8mm～14.5mm.
Angle in the said mounting hole of oil sprayer between oil sprayer connector assembly center line and the mounting hole of oil sprayer horizontal line is 10 °～20 °.
Oil sprayer central axis in the said mounting hole of oil sprayer and the angle between the spark plug central axis in the said spark plug mounting hole are 11.8 °～12.2 °.
The filler opening at said oil sprayer top is through the O-ring seals sealing.
The spray orifice of said oil nozzle evenly distributes around the oil sprayer central axis.
The beneficial effect of the utility model is: make engine structure compact, the oil sprayer easy accessibility; Can reduce the fuel consume of motor; Effectively improve oily bundle and be injected in the problem that causes oil dilution on the cylinder wall; Can realize lean burn technology.
Description of drawings
According to accompanying drawing the utility model is done further explain below.
Fig. 1 is the petrolic partial sectional view of in-cylinder direct injection of the mid-layout of the described oil sprayer of the utility model embodiment;
Fig. 2 is the plan view of the described cylinder head of the utility model embodiment;
Fig. 3 is the partial sectional view of the described cylinder head of the utility model embodiment.
Among the figure:
1, cylinder head; 2, oil sprayer; 3, spark plug; 4, oil nozzle; 5, oil sprayer central axis; 6, filler opening; 7, oil sprayer connector assembly center line; 8, mounting hole of oil sprayer horizontal line; 9, spark plug central axis; 10, sparking-plug electrode; 11, mounting hole of oil sprayer; 12, spark plug mounting hole.
Embodiment
Shown in Fig. 1-3; The mid-layout of the described in-cylinder direct injection petrol engine of the utility model embodiment oil sprayer; Cylinder head 1 is provided with mounting hole of oil sprayer 11 and spark plug mounting hole 12; Oil sprayer 2 is installed in the mounting hole of oil sprayer 11 on the cylinder head 1 perpendicular to cylinder head 1 bottom surface, and spark plug 3 tilts to be installed in the spark plug mounting hole 12 on the cylinder head 1; Distance between the sparking-plug electrode 10 of the oil nozzle 4 of oil sprayer 2 bottoms and spark plug 3 bottoms is 13.8mm～14.5mm.Angle in the said mounting hole of oil sprayer 11 between oil sprayer connector assembly center line 7 and the mounting hole of oil sprayer horizontal line 8 is 10 °～20 °.Oil sprayer central axis 5 in the said mounting hole of oil sprayer 11 and the angle between the spark plug central axis 9 in the said spark plug mounting hole 12 are 11.8 °～12.2 °.The filler opening 6 at said oil sprayer 2 tops is through the O-ring seals sealing.The spray orifice of said oil nozzle 4 evenly distributes around oil sprayer central axis 5.
The top that oil sprayer 2 is vertically mounted on cylinder can reduce the fuel consume of petrol engine, better adapts to the requirement of the low oil consumption of modern engine, and has effectively improved oily bundle and be injected in the problem that causes oil dilution on the cylinder wall; Shorten the oil nozzle 4 of oil sprayer 2 and the distance between the sparking-plug electrode 10, its spacing scope is 13.8mm～14.5mm, can make motor ignition speed faster, the discharging of HC when reducing cold start-up; Angle between oil sprayer connector assembly center line 7 and the mounting hole of oil sprayer horizontal line 8 is 10 °～20 °, and this angular range helps the mounting arrangements of oil sprayer 2; Angle between oil sprayer central axis 5 and the spark plug central axis 9 is 11.8 °～12.5 °, and this angular range helps shortening firing time, improves burning, avoids detonation; The filler opening 6 of oil sprayer 2 adopts the sealing of O type, is difficult for loosening, for convenience detach; The oil spout oil Shu Caiyong spray-guided of oil sprayer 2 has reduced the requirement to piston combustion bowl; The spray orifice of oil nozzle 4 evenly distributes around oil sprayer central axis 5, has reduced the difficulty of processing of spray orifice, and it is more even that oil gas is mixed, and reduces wet wall, avoids the dilution of machine oil.
The utility model is not limited to above-mentioned preferred forms; Anyone can draw other various forms of products under the enlightenment of the utility model; No matter but on its shape or structure, do any variation; Every have identical with a application or akin technological scheme, all drops within the protection domain of the utility model.
Claims (5)
1. the mid-layout of an in-cylinder direct injection petrol engine oil sprayer; Cylinder head (1) is provided with mounting hole of oil sprayer (11) and spark plug mounting hole (12); It is characterized in that: oil sprayer (2) is installed in the mounting hole of oil sprayer (11) on the cylinder head (1) perpendicular to cylinder head (1) bottom surface, and spark plug (3) tilts to be installed in the spark plug mounting hole (12) on the cylinder head (1); Distance between the sparking-plug electrode (10) of the oil nozzle (4) of oil sprayer (2) bottom and spark plug (3) bottom is 13.8mm～14.5mm.
2. the mid-layout of in-cylinder direct injection petrol engine oil sprayer according to claim 1 is characterized in that: the angle between said mounting hole of oil sprayer (11) interior oil sprayer connector assembly center line (7) and the mounting hole of oil sprayer horizontal line (8) is 10 °～20 °.
3. the mid-layout of in-cylinder direct injection petrol engine oil sprayer according to claim 2 is characterized in that: oil sprayer central axis (5) in the said mounting hole of oil sprayer (11) and the angle between the spark plug central axis (9) in the said spark plug mounting hole (12) are 11.8 °～12.2 °.
4. the mid-layout of in-cylinder direct injection petrol engine oil sprayer according to claim 3 is characterized in that: the filler opening (6) at said oil sprayer (2) top is through the O-ring seals sealing.
5. according to the mid-layout of each described in-cylinder direct injection petrol engine oil sprayer of claim 1-4, it is characterized in that: the spray orifice of said oil nozzle (4) evenly distributes around oil sprayer central axis (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220067184 CN202611965U (en) | 2012-02-28 | 2012-02-28 | Centrally-mounted arrangement structure of gasoline direct injection engine fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220067184 CN202611965U (en) | 2012-02-28 | 2012-02-28 | Centrally-mounted arrangement structure of gasoline direct injection engine fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611965U true CN202611965U (en) | 2012-12-19 |
Family
ID=47345671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220067184 Expired - Lifetime CN202611965U (en) | 2012-02-28 | 2012-02-28 | Centrally-mounted arrangement structure of gasoline direct injection engine fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640455A (en) * | 2016-11-25 | 2017-05-10 | 奇瑞汽车股份有限公司 | Cylinder cover combustion system of middle-arranged oil atomizer for direct-injection gasoline engine |
| CN112648099A (en) * | 2019-10-11 | 2021-04-13 | 广州汽车集团股份有限公司 | Cylinder head assembly and engine comprising same |
-
2012
- 2012-02-28 CN CN 201220067184 patent/CN202611965U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640455A (en) * | 2016-11-25 | 2017-05-10 | 奇瑞汽车股份有限公司 | Cylinder cover combustion system of middle-arranged oil atomizer for direct-injection gasoline engine |
| CN112648099A (en) * | 2019-10-11 | 2021-04-13 | 广州汽车集团股份有限公司 | Cylinder head assembly and engine comprising same |
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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: 20121219 |
|
| CX01 | Expiry of patent term |