CN100494667C - Injection system for internal combustion engine - Google Patents
Injection system for internal combustion engine Download PDFInfo
- Publication number
- CN100494667C CN100494667C CNB2003101048584A CN200310104858A CN100494667C CN 100494667 C CN100494667 C CN 100494667C CN B2003101048584 A CNB2003101048584 A CN B2003101048584A CN 200310104858 A CN200310104858 A CN 200310104858A CN 100494667 C CN100494667 C CN 100494667C
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- CN
- China
- Prior art keywords
- cone
- oil
- guiding cone
- guiding
- internal combustion
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 title claims description 9
- 239000007924 injection Substances 0.000 title claims description 9
- 238000010304 firing Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims 1
- 210000002268 wool Anatomy 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000010298 pulverizing process Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000000889 atomisation Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention is a kind of combustion spraying system, which belongs to engine mixed gas forming and combustion field. It sets a guiding cone under the oil sprayer, the guiding cone and the oil sprayer is connected together, forms a integral body. When the oil ejected from the multi-hole oil sprayer reaches the cone, under the guiding of cone surface, by using the secondary oil beam, forms pulverization with even distribution, good pulverization, controllable penetration distance, it speeds up the combustion of gas, thus the power, and economic performance and discharging index of engine are improved prominently.
Description
Technical field
The present invention relates to a kind of internal combustion engine injection system, belong to engine mixed gas and form and combustion field.
Background technique
At present, the excess air coefficient of diesel engine is more easy over-emitting black exhaust, and its main cause is because in a circumferential direction inhomogeneous of porous spraying, and produces the overrich district at the drop point place of spraying.In order to address this problem, though the umbrella-shaped spray atomization of generation is good, circumferencial direction is evenly distributed, and penetrating force is not strong.Therefore, in better performances under the low operating mode, have more than is needed because of firing chamber peripheral air profit under high operating mode, black smoke increases more.
Summary of the invention
For drop point place mixed gas overrich and the circumferential skewness that solves the porous spraying, and umbrella-shaped spray runs through apart from short problem, the invention provides a kind of internal combustion engine injection system, this internal combustion engine injection system can provide atomization good, circumferentially be evenly distributed, run through apart from controlled spraying.
The technical solution adopted for the present invention to solve the technical problems is: in the firing chamber that cylinder head, piston and cylinder liner are formed, a guiding cone is set under perforated plate type atomizer, and make the cone angle of oil bundle angle β less than the guiding cone, can be sprayed onto on the conical surface of cone to guarantee oily bundle.Guiding cone and oil nozzle lower end link together, and form one.
The surface of guiding cone has the broken line shape surface of being made up of top line and bottom line, and the surface of guiding cone can also have the waveform surface of being made up of crest and trough.When the oil bundle that gushes out from oil nozzle is run into the conical surface of guiding cone, realize secondary-atomizing, the oil bundle launches along the conical surface, is fan-shaped ejection.What can guarantee like this to spray circumferentially is evenly distributed, because can change the angle of oil bundle and the guiding conical surface, adjusts and runs through apart from size again, be rebuffed to avoid the oil bundle, thereby it is good to obtain atomization, circumferentially is evenly distributed, and runs through apart from controlled spraying.
The invention has the beneficial effects as follows: launch because the guiding cone is restrainted along the conical surface oil, be fan-shaped ejection, atomization is good, circumferentially is evenly distributed, and runs through apart from controlled, has greatly improved the quality of engines combustible mixed gas, makes burning rapidly with perfect.Under declared working condition, add the guiding cone after, smoke intensity 1 ripple that descends is permitted value, oil consumption descends more than 5%, other exhaust indexs of motor also have clear improvement; If the value when keeping smoke intensity to lead cone for not adding, power can improve about 10%.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of internal combustion engine injection system a longitudinal section tectonic maps.
Fig. 2 is the A partial enlarged drawing of Fig. 1.
Fig. 3 is the guiding cone with broken line shape surface.
Fig. 4 is the guiding cone with waveform surface.
Among the figure: 1, cylinder head, 2, piston, 2a, firing chamber, 3, cylinder liner, 4, oil nozzle, 4a, primary oil beam, 5, the guiding cone, 6, secondary oil beam, 7a, top line, 7b, bottom line, 8a, crest, 8b, trough.
Embodiment
In the embodiment shown in fig. 1, cylinder head 1, piston 2 and cylinder liner 3 are formed the 2a of toroidal combustion chamber, and the middle part of cylinder head 1 is equipped with oil nozzle 4, and the lower end of oil nozzle 4 is provided with guiding cone 5.When oil nozzle 4 during to guiding cone 5 ejection primary oil beam 4a, primary oil beam 4a expands to circumferentially more uniform secondary oil beam 6 under the guiding of the guiding conical surface, under the air motion effect of secondary oil beam 6 in the 2a of firing chamber, form the more inflammable mixture of homogeneous.
Shown that in Fig. 2 guiding cone 5 is welded on the structure that oil nozzle 4 lower ends connect as one.
The guiding cone 5 that in Fig. 3, has shown the broken line shape surface of forming by top line 7a and bottom line 7b.
The guiding cone 5 that in Fig. 4, has shown the waveform surface of forming by crest 8a and trough 8b.
In the above-described embodiments, the angle β of the primary oil beam 4a of oil nozzle 4 should be less than the cone angle of guiding cone 5, and guarantees that primary oil beam 4a drops on the guiding conical surface, in order to forming secondary oil beam 6 of fine quality.
Claims (3)
1. internal combustion engine injection system, oil nozzle (4) sprays into high pressure fuel in the firing chamber of being made up of cylinder head (1), piston (2) and cylinder liner (3) (2a) with vaporific in heavy wool bundle mode, be provided with guiding cone (5) under the oil bundle (4a) of oil nozzle (4) ejection, oil bundle angle (β) is less than the cone angle (α) of guiding cone, oily bundle can be sprayed onto on the conical surface of guiding cone (5), it is characterized in that: guiding cone (5) links together with oil nozzle (4) lower end, forms one.
2. according to the described internal combustion engine injection system of claim 1, it is characterized in that: the surface of guiding cone (5) has the broken line shape surface of being made up of top line (7a) and bottom line (7b).
3. according to the described internal combustion engine injection system of claim 1, it is characterized in that: the surface of guiding cone (5) has the waveform surface of being made up of crest (8a) and trough (8b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101048584A CN100494667C (en) | 2003-10-15 | 2003-10-15 | Injection system for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101048584A CN100494667C (en) | 2003-10-15 | 2003-10-15 | Injection system for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1529049A CN1529049A (en) | 2004-09-15 |
| CN100494667C true CN100494667C (en) | 2009-06-03 |
Family
ID=34304293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101048584A Expired - Fee Related CN100494667C (en) | 2003-10-15 | 2003-10-15 | Injection system for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100494667C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397964B (en) * | 2013-08-19 | 2016-06-29 | 王抗美 | Centrifugal conical-spray oil nozzle |
| CN105804909A (en) * | 2016-05-09 | 2016-07-27 | 常州机电职业技术学院 | Carbon-deposition-prevention oil sprayer |
-
2003
- 2003-10-15 CN CNB2003101048584A patent/CN100494667C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1529049A (en) | 2004-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20111015 |