CN1040851A - Combustion system with double plume - Google Patents
Combustion system with double plume Download PDFInfo
- Publication number
- CN1040851A CN1040851A CN88106248A CN88106248A CN1040851A CN 1040851 A CN1040851 A CN 1040851A CN 88106248 A CN88106248 A CN 88106248A CN 88106248 A CN88106248 A CN 88106248A CN 1040851 A CN1040851 A CN 1040851A
- Authority
- CN
- China
- Prior art keywords
- piston head
- garden
- lonely
- combustion system
- mistress
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The present invention relates to the combustion system used on a kind of high-speed diesel engine.The combustion system of using on the existing high-speed diesel engine with shallow basin type firing chamber, it is not high to exist mixed gas quality, and oil consumption is bigger, the shortcoming that mechanical load is bigger.The present invention adopts combustion system with double plume, and the firing chamber of this system is made of inside and outside two doughnuts, at piston head one conical boss is arranged.The present invention has improved mixed gas quality effectively, has reduced oil consumption and mechanical load.The present invention is mainly used in high-speed diesel engine and supercharged diesel engine.
Description
The present invention relates to the combustion system used on a kind of high-speed diesel engine, it is made up of firing chamber and oil nozzle.
A kind of combustion chambers of internal combustion engines is disclosed on SU-111878A.Its purpose is to prevent the slit intrusion piston ring of combustion gas through between piston and cylinder, causes the high speed wearing and tearing of piston ring and casing wall, thereby improves the durability of motor.Its structure is that piston head has two annular concentric flanges; Corresponding with two flanges of piston, two annular grooves are arranged on cylinder cap; On sectional drawing, two flanges and two grooves are in echelon.When piston entered top dead center, two flanges successively entered two grooves, played the effect that prevents combustion gas intrusion piston ring.This firing chamber does not have the effect that improves mixed gas quality and combustion efficiency, does not relate to the matching problem with oil nozzle yet.
The combustion system of using on a kind of high-speed diesel engine is disclosed on " vehicular engine " magazine (nineteen eighty-two supplementary issue P37).The chamber structure of this system is that piston head is a shallow pot shape.And constitute the firing chamber with cylinder cap and casing wall; There is following shortcoming in this combustion system:
1, the shallow pot shape firing chamber of this combustion system employing is not organized air movement specially in cylinder, mixes by even distribution and the atomization quality assurance of oil bundle in the firing chamber.When Injection Pump does not reach needed pressure, cause mixed gas quality not high, oil consumption is big.
2, because the firing chamber is not organized air movement specially, along with the raising of rotating speed, incorporation time shortens, the mixed gas quality variation.
3, when diesel engine at high rotating speed, short stroke, when reinforcing degree is higher, mixed gas quality is poor, combustion efficiency is not high, is forced to strengthen advance angle.Increase advance angle and can only play a role to raising mixed gas quality, reduction oil consumption, but caused pressure of explosion too high, mechanical load increases.
The objective of the invention is to overcome the deficiency that above-mentioned combustion system mixed gas quality is poor, mechanical load is big, oil consumption is high, and a kind of higher mixed gas quality that has is provided, the combustion efficiency height, pressure of explosion is lower, the combustion system that is easy to promote the use of.
Technical solution of the present invention is, adopts combustion system with double plume, and firing chamber and oil nozzle that the space that it is surrounded by piston head, cylinder cap and casing wall constitutes are formed, and it is characterized in that; Piston head has inside and outside two doughnuts, and lonely intersecting with inner room bottom surface arc of garden, mistress bottom surface forms pointed lonely ridge, and pointed lonely ridge is divided into two doughnuts with piston head, and there is garden awl boss at the piston head center.The angle and the inside-and-outside ring chamber of the oil bundle of oil injecting nozzle spray orifice ejection are complementary, and make the oil bundle form the opposite plume of rotation direction in the inside-and-outside ring chamber.Mistress's diameter d 1=(0.66～0.83) D(D is a piston diameter), inner room diameter d 2=(0.4～0.66) D, the lonely radius R 1=(0.05 in garden, mistress bottom surface～0.093) D, the lonely radius R 2=(0.04 in garden, inner room bottom surface～0.066) D, mistress's minimum point is apart from the distance H 1=(0.06-0.1 on the top, chamber of living) D, the distance H 2=(0.08-0.10 of inner room perigee distance piston head) D, pointed lonely ridge is apart from the distance H 3=(0.05-0.08 of piston head) D, the diameter d 3=(0.05-0.08 of garden awl boss) D, cone angle=120 of garden awl boss °-150 °.
The working principle of this combustion system is, the oil bundle is after spraying into the firing chamber, and at the two eddy current of inside and outside two indoor formation, two eddy current rotation directions are opposite, can make full use of the air in the firing chamber, quickened the mixing and the burning of main combustion period.Pointed lonely ridge has played the pure fuel of powder, has quickened the formation of high quality mixed gas.The shift in position of pointed lonely ridge can play the effect of control delay period.The distribution of fuel is fixed by the air quantity in the inside-and-outside ring chamber, has guaranteed that fuel mixes with the timely of air.
The present invention has compared with prior art obtained following good effect:
1, can form high-quality mixed gas, improve combustion position, reduce oil consumption.
2,, thereby can dwindle fuel supply advance angle because this combustion system can form high-quality mixed gas at short notice.The firing chamber of this system increases than shallow pot shape combustion chamber volume, has reduced compression ratio.Advance angle dwindle reduction with compression ratio, maximum explosive pressure and voltage rise rate are descended, reduced mechanical load.
3, this combustion system has reduced the processing technology requirement to oil nozzle, and the oil bundle angle of oil nozzle ejection can be between 140 °-160 °, for promoting the use of of this burning created advantage.
4, this combustion system only need change the structure of piston head, and the structure that does not need to change other parts is easy to promote the use of.
5, under the identical situation of combustion chamber volume, the firing chamber of adopting this system can increase the combustion chamber openings diameter, reduces combustion-chamber depth, and this helps reducing heat load, is applicable to the high supercharged diesel engine of strengthening.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the structural drawing of firing chamber.
Fig. 2 is the plan view of piston head.
The present invention will be described in further detail in conjunction with the accompanying drawings.
In Fig. 1, between cylinder 2 and the cylinder cap 4 seal ring 3 is housed, air valve 5 and oil nozzle 6 are housed on the cylinder cap.The top structure of piston 1 is, there is a taper boss 7 at the center, at the bottom of the table top in the piston head plane, the conical surface and inner room bottom surface garden orphan are tangent, garden, inner room bottom surface is lonely intersects with garden, mistress bottom surface is lonely, form pointed lonely ridge 8, pointed lonely ridge is divided into inside and outside two doughnuts to the firing chamber, the lonely and piston head Plane intersects in garden, mistress bottom surface.
Fig. 2 has represented the plan structure of piston head.In order to prevent the interference of piston and air valve, be provided with four uniform valve pits 9 at piston head.
Symbolic significance and value in the accompanying drawing are as follows:
D is a piston diameter.
Mistress's diameter d 1=(0.66-0.83) D.Inner room diameter d 2=(0.4-0.66) D
Conical boss diameter d 3=(0.05-0.08) D
Mistress's minimum point is apart from the distance H 1=(0.06-0.1 of piston head) D
The inner room minimum point is apart from the distance H 2=(0.08-0.10 of piston head) D
Pointed lonely ridge is apart from the distance H 3=(0.05-0.08 of piston head) D
The lonely radius R 1=(0.05-0.093 in garden, mistress bottom surface) D
The lonely radius R 2=(0.04-0.066 in garden, inner room bottom surface) D
Cone angle=120 of garden awl °-150 °
On the 6V150 diesel engine, when
d1＝0.8D d2＝0.533D d3＝0.06D
H1＝0.106D H2＝0.086D H3＝0.06D
R1＝0.06D R2＝0.053D α＝135°
Best results.
The oil injecting nozzle of the firing chamber coupling that is limited with the said structure size, the oil bundle angle of its spray orifice ejection can both guarantee that the oil bundle forms the opposite plume of rotation direction in the inside-and-outside ring chamber between 140-160.The position of spray orifice is on the The combustion chamber bottom plane.
Claims (2)
1, a kind of combustion system with double plume, firing chamber and oil nozzle that the space that is surrounded by piston head, cylinder cap and casing wall constitutes are formed, it is characterized in that: piston head 1 has inside and outside two doughnuts, mistress bottom surface garden arc and garden, inner room bottom surface arc intersect the pointed arc ridge 8 of formation, pointed lonely ridge is divided into two doughnuts with piston head, and there is garden awl boss 7 at the piston head center.The angle and the inside-and-outside ring chamber of the oil bundle of oil injecting nozzle spray orifice ejection are complementary, and make the oil bundle form the opposite plume of rotation direction in the inside-and-outside ring chamber.
2, according to the described combustion system with double plume of claim 1, it is characterized in that: D mistress's diameter d 1=(0.66-0.83), inner room diameter d 2=(0.4-0.66) D, the lonely radius R 1=(0.05-0.093 in garden, mistress bottom surface) D, the lonely radius R 2=(0.04-0.066 in garden, inner room bottom surface) D, mistress's minimum point is apart from the distance H 1=(0.06-0.1 of piston head) D, the inner room minimum point is apart from the distance H 2=(0.08-0.10 of piston head) D, pointed lonely ridge is apart from the distance H 3=(0.05-0.08 of piston head) D, the diameter d 3=(0.05-0.08 of garden awl boss) D, cone angle=120 of garden awl boss °-150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88106248A CN1011327B (en) | 1988-08-31 | 1988-08-31 | Combustion system with double plume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88106248A CN1011327B (en) | 1988-08-31 | 1988-08-31 | Combustion system with double plume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1040851A true CN1040851A (en) | 1990-03-28 |
| CN1011327B CN1011327B (en) | 1991-01-23 |
Family
ID=4834160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88106248A Expired CN1011327B (en) | 1988-08-31 | 1988-08-31 | Combustion system with double plume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011327B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024207A1 (en) * | 2004-08-31 | 2006-03-09 | Deyang Hou | A diesel direct injection combustion system and method thereof with self-adapting controllable hot premix |
| CN101737145B (en) * | 2009-11-06 | 2011-07-20 | 北京理工大学 | Split swirl combustion chamber |
| CN105715356A (en) * | 2016-01-20 | 2016-06-29 | 北京理工大学 | Swirl-splitting combustion chamber |
| CN111648876A (en) * | 2020-06-15 | 2020-09-11 | 江苏科技大学 | High-low type double vortex chamber double-reducing combustion chamber |
| CN112682163A (en) * | 2020-12-22 | 2021-04-20 | 中国北方发动机研究所(天津) | Layered anti-detonation combustion chamber based on deep valve pit |
| CN113586227A (en) * | 2021-08-25 | 2021-11-02 | 中国第一汽车股份有限公司 | Combustion chamber structure of gasoline engine and gasoline engine |
| WO2023169581A1 (en) * | 2022-03-11 | 2023-09-14 | 潍柴动力股份有限公司 | Engine combustion system, control method and engine |
-
1988
- 1988-08-31 CN CN88106248A patent/CN1011327B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024207A1 (en) * | 2004-08-31 | 2006-03-09 | Deyang Hou | A diesel direct injection combustion system and method thereof with self-adapting controllable hot premix |
| CN101737145B (en) * | 2009-11-06 | 2011-07-20 | 北京理工大学 | Split swirl combustion chamber |
| CN105715356A (en) * | 2016-01-20 | 2016-06-29 | 北京理工大学 | Swirl-splitting combustion chamber |
| CN105715356B (en) * | 2016-01-20 | 2018-07-20 | 北京理工大学 | A kind of Split swirl combustion chamber |
| CN111648876A (en) * | 2020-06-15 | 2020-09-11 | 江苏科技大学 | High-low type double vortex chamber double-reducing combustion chamber |
| CN112682163A (en) * | 2020-12-22 | 2021-04-20 | 中国北方发动机研究所(天津) | Layered anti-detonation combustion chamber based on deep valve pit |
| CN113586227A (en) * | 2021-08-25 | 2021-11-02 | 中国第一汽车股份有限公司 | Combustion chamber structure of gasoline engine and gasoline engine |
| WO2023169581A1 (en) * | 2022-03-11 | 2023-09-14 | 潍柴动力股份有限公司 | Engine combustion system, control method and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1011327B (en) | 1991-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6513487B1 (en) | Method for operating a reciprocating-piston internal combustion engine | |
| EP0849448B1 (en) | piston having combustion bowl | |
| US7597084B2 (en) | Internal combustion engine and operating method therefor | |
| GB1359794A (en) | Diesel engine with a combustion chamber in the piston | |
| CN1314971A (en) | Combustion system for direct injection diesel engines | |
| WO2003104625A1 (en) | Internal combustion engine producing low emissions | |
| CN1193374A (en) | Two-stroke engine piston bowl configurations | |
| CN102770633A (en) | A piston positioned for reciprocal movement in a combustion engine cylinder | |
| US20190040789A1 (en) | Variable-compression ratio internal-combustion engine with two mixing zones, notably for a motor vehicle, and method of injection for such a vehicule | |
| CN1040851A (en) | Combustion system with double plume | |
| SU1739860A3 (en) | Direct-injection internal combustion engine with forced ignition | |
| CN1323239C (en) | Fuel injection nozzle | |
| EP1035321A3 (en) | Fuel injection | |
| CN1290324A (en) | Barrier divided combustion chamber for fuel injected two-stroke engine | |
| CN2036575U (en) | Double-cyclone combustion system | |
| CN111734522B (en) | Combustion chamber of n-octanol internal combustion engine for combustion | |
| US20030079717A1 (en) | Injector tip for an internal combustion engine | |
| EP0218834B1 (en) | Direct injection type diesel engine | |
| CN2854112Y (en) | Micro-displacement compound fuel injector of electric control direct-injection petrol engine | |
| JP2003293909A (en) | Fuel injection method for high injection sensitivity internal combustion engine and engine using such method | |
| CN1657764A (en) | Multi-injection fuel injection nozzle | |
| CA2636485A1 (en) | Internal combustion engine | |
| CN201843693U (en) | Piston combustion chamber for air-cooled single-cylinder diesel engine with small cylinder diameter | |
| SU1305415A1 (en) | Compression ignition internal combustion engine | |
| CN86104092A (en) | Use oil film atomizing burn in shallow W-shaped combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |