CN1807854A - Pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure - Google Patents
Pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure Download PDFInfo
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- CN1807854A CN1807854A CNA2006100028303A CN200610002830A CN1807854A CN 1807854 A CN1807854 A CN 1807854A CN A2006100028303 A CNA2006100028303 A CN A2006100028303A CN 200610002830 A CN200610002830 A CN 200610002830A CN 1807854 A CN1807854 A CN 1807854A
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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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Abstract
The invention relates to an extensible spray tube pre-burning room separated diesel internal-combustion engine, which is mainly characterized in that: it comprises a extensible channel between the auxiliary burning room and the main burning room of burning room. Said channel has simple structure and simple producing process, which can apply the high speed diesel internal-combustion engine. The invention has better mixed atomization, fully burning, lower pollution discharge and environment protection.
Description
Affiliated technical field
The present invention relates to a kind of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure, especially a kind of in combustion engine cylinder head the main combustion chamber connecting passage in precombustion chamber separated type subsidiary combustion chamber and the cylinder adopt the diesel engine of shrinkage expansion type nozzle structure.
Background technique
At present, the flowability of known because diesel oil and vapo(u)rability are all than gasoline difference, so diesel engine can not resemble the gasoline engine at the outside inflammable mixture that forms of cylinder, the inflammable mixture of diesel engine can only form in cylinder, because the formation time of the inflammable mixture of diesel engine is extremely short, firing chamber mixed gas composition everywhere is very inhomogeneous, in order to improve the performance of diesel engine, so there is the part diesel engine to adopt the separated type firing chamber, because what adopt between the main combustion chamber of existing precombustion chamber separated type firing chamber diesel engine and the pre-burning subsidiary combustion chamber is the gas channel of the identical flat type of diameter, the flat type passage can not be given full play to the power performance and the combustion performance of the combustion gas of high speed and high pressure.
Summary of the invention
What adopt between the main combustion chamber of existing precombustion chamber separated type firing chamber diesel engine and the pre-burning subsidiary combustion chamber is the connecting passage of the identical flat type of diameter, can not give full play to the power performance and the combustion performance of high speed and high pressure inflammable gas in order to overcome the flat type passage.The invention provides a kind of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure, can not only give full play to the power performance and the combustion performance of the combustion gas of high speed and high pressure, and can reduce the discharging of diesel internal combustion organic pollutants.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure is characterized in that the shrinkage expansion type connecting passage that is provided with between precombustion chamber subsidiary combustion chamber in the diesel engine cylinder head and the main combustion chamber in the cylinder is a shrinkage expansion type jet pipe.
It is supersonic nozzle type structure that passage between its main and auxiliary combustor of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure has adopted the structure of shrinkage expansion type, shrinkage expansion type passage is arranged in the diesel engine cylinder head fully, the precombustion chamber subsidiary combustion chamber is divided into combustion section, the passages shrink section, passage diverging nozzle section.
Shrinkage expansion type passage between the main and auxiliary combustor directly is connected with subsidiary combustion chamber, in compression process, pressurized air enters precombustion chamber subsidiary combustion chamber through shrinkage expansion type passage with high speed or velocity of sound from main combustion chamber, and form strong amorphous turbulent flow therein, diesel oil sprays in face of airflow direction, tiny diesel oil oil droplet is crashed to pieces and by good atomizing, when the pressure of main and auxiliary combustor reaches certain one-tenth and spends, the diesel oil mixed gas is got angry burning in advance at the subsidiary combustion chamber top, the air-flow of subsidiary combustion chamber sharply raises because of combustion expansion pressure, and high-temperature high-pressure fuel gas enters cylinder main combustion chamber with velocity of sound or superelevation velocity of sound from the subsidiary combustion chamber ejection through shrinkage expansion type passage from the precombustion chamber subsidiary combustion chamber.
The invention has the beneficial effects as follows, the major character of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure is arranged on the shrinkage expansion type passage between precombustion chamber subsidiary combustion chamber and the main combustion chamber, the structure and the manufacturing process of shrinkage expansion type passage are simple, be applicable to the high-speed diesel fuel internal-combustion engine, the atomizing of diesel oil mixed gas is good, sufficient combustion, the lower and environmental protection of pollutant emission.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a vertical section structure plan view of the present invention.
Fig. 2 is a vertical section structure side view of the present invention.
Fig. 3 is the embodiments of the invention structural drawing.
Among the figure, 1. oil drain plug, 2. oil sump, 3. bent axle, 4. body, 5. outlet pipe, 6. piston, 7. suction tude, 8. cylinder head, 9. valve, 10. camshaft, 11. valve mechanism cover, 12. Injection Pump, 13. oil sprayers, 14. precombustion chamber separated type subsidiary combustion chamber, 15. precombustion chamber shrinkage expansion type jet pipe, 16. fuel oil filters, 17. coolant pumps, 18. lubricating oil filter, 19. lubricating pumps, 20. belt pulleys, 21. belt, 22. gear, 23. main combustion chambers, 24. shrinkage expansion type jet pipe expansion regions, 25. shrinkage expansion type jet pipe shrinking zone, 26. glow plugs.
Embodiment
In Fig. 3, by piston (6), cylinder head (8), shrinkage expansion type jet pipe expansion regions (24), shrinkage expansion type jet pipe shrinking zone (25), precombustion chamber separated type subsidiary combustion chamber (14), oil sprayer (13), shrinkage expansion type jet pipe (15), main combustion chamber (23), glow plug (26), body (4) has been formed the firing chamber of diesel engine.Precombustion chamber separated type subsidiary combustion chamber (14) in cylinder head in (8) links to each other with oil sprayer (13) glow plug (26).Main combustion chamber (23) in piston (6) and body (4) links to each other with precombustion chamber separated type subsidiary combustion chamber (14) in the cylinder head (8) by the shrinkage expansion type jet pipe expansion regions (24) in the shrinkage expansion type jet pipe (15) and shrinkage expansion type jet pipe shrinking zone (25).
Claims (1)
1 one kinds of pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure is characterized in that the shrinkage expansion type connecting passage that is provided with between precombustion chamber subsidiary combustion chamber in the pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure cylinder head and the main combustion chamber in the cylinder is a shrinkage expansion type jet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100028303A CN1807854A (en) | 2006-02-06 | 2006-02-06 | Pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100028303A CN1807854A (en) | 2006-02-06 | 2006-02-06 | Pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1807854A true CN1807854A (en) | 2006-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100028303A Pending CN1807854A (en) | 2006-02-06 | 2006-02-06 | Pre-combustion separation type diesel internal combustion engine with contracting and expanding type nozzle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1807854A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590871A (en) * | 2018-05-29 | 2018-09-28 | 重庆隆鑫发动机有限公司 | The cylinder head and aero-engine of heavy fuel burning engine |
| CN112177764A (en) * | 2020-10-06 | 2021-01-05 | 山东交通学院 | Shock wave multistage reflection strong premixing precombustion chamber structure |
| CN112211714A (en) * | 2020-11-27 | 2021-01-12 | 山东交通学院 | Shock wave combustion-supporting precombustion chamber structure of gas engine |
-
2006
- 2006-02-06 CN CNA2006100028303A patent/CN1807854A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590871A (en) * | 2018-05-29 | 2018-09-28 | 重庆隆鑫发动机有限公司 | The cylinder head and aero-engine of heavy fuel burning engine |
| CN112177764A (en) * | 2020-10-06 | 2021-01-05 | 山东交通学院 | Shock wave multistage reflection strong premixing precombustion chamber structure |
| CN112211714A (en) * | 2020-11-27 | 2021-01-12 | 山东交通学院 | Shock wave combustion-supporting precombustion chamber structure of gas engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |