CN107355297A - A kind of engine chamber for using Fuel Petroleum burning instead suitable for diesel engine - Google Patents
A kind of engine chamber for using Fuel Petroleum burning instead suitable for diesel engine Download PDFInfo
- Publication number
- CN107355297A CN107355297A CN201710638539.3A CN201710638539A CN107355297A CN 107355297 A CN107355297 A CN 107355297A CN 201710638539 A CN201710638539 A CN 201710638539A CN 107355297 A CN107355297 A CN 107355297A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- engine
- diesel engine
- fuel petroleum
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/24—Pistons having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/28—Other pistons with specially-shaped head
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention discloses a kind of engine chamber for using Fuel Petroleum burning instead suitable for diesel engine, the space surrounded by cylinder cover bottom surface, cylinder wall surface and piston-top surface is formed, and the cylinder cover bottom surface is plane, and two inlet valves and two exhaust valves are distributed with；The center of the cylinder cover bottom surface is provided with spark plug；The piston-top surface is in recessed symmetrical arc surface, and the minimum point line L of the arc surface is parallel with two inlet valve bottom center line N, and is intersected with cylinder axis axis；The recessed depth capacity H of piston-top surface is the 8 10% of cylinder bore D.Cancave cambered surface coordinates cylinder wall surface to increase longitudinal Tumble intensity in cylinder by the guiding to air motion at suction stroke initial stage and compression travel latter stage under piston of combustion chamber top of the present invention, and near by making tubulence energy in its broken increase cylinder, and then accelerate rate of flame propagation so that diesel engine can still realize the higher thermal efficiency and power per liter after using Fuel Petroleum instead.
Description
Technical field
It is particularly a kind of to be applied to use instead on the basis of diesel engine the present invention relates to engine combustion chamber structure optimization design
The engine chamber of Fuel Petroleum burning.
Background technology
Problem of environmental pollution caused by large diesel engine soot emissions becomes increasingly conspicuous, and increasingly tight with Abgasgesetz
Lattice, the fuel system required for it, air system and after-treatment system cost also substantially increase.By on original diesel engine basis
On use spark ignition type Fuel Petroleum premixed combustion instead, while coordinate triple-effect catalytic unit, can integrally use and calibration cost is relatively low
Under the conditions of meet emission regulation demands；On the other hand, compared to conventional gasoline machine, Strength of Diesel Engine Blocks is higher, in combustion process
In can bear higher explosion pressure, the thermal efficiency and power per liter of engine when using Fuel Petroleum so as to can further improve.
But diesel engines at present uses flat cylinder cap, spiral inlet duct and toroidal combustion chamber more, Fuel Petroleum combustion it is not very suitable for
Burn, burning and air system need to be improved on the basis of original diesel engine typical structure for this, to ensure that engine is used instead as far as possible
After Fuel Petroleum, preferable dynamic property and economy can be still realized while emission request is met, and then meet that commercial car makes
Use demand.
The content of the invention
It is a kind of suitable for using spark ignition type Fuel Petroleum instead on the basis of original engine block present invention aims at providing
The engine chamber of premixed combustion, turbulence intensity optimization Fuel Petroleum is burned in the cylinder by improving near
Journey, ensure that diesel engine still has the higher thermal efficiency and power per liter after Fuel Petroleum is used instead, and then coordinate triple-effect catalytic unit,
Meet the requirement of heavy type commercial engine performance and discharge under conditions of after-treatment system is greatly simplified.
In order to solve the above-mentioned technical problem, the invention provides a kind of hair for using Fuel Petroleum burning instead suitable for diesel engine
Motivation combustion chamber, the space surrounded by cylinder cover bottom surface, cylinder wall surface and piston-top surface are formed, and the cylinder cover bottom surface is plane, and
Two inlet valves and two exhaust valves are distributed with；The center of the cylinder cover bottom surface is provided with spark plug；Under the piston-top surface is in
Recessed symmetrical arc surface, and the minimum point line L of the arc surface is parallel with two inlet valve bottom center line N, and with cylinder
Mandrel line intersects.
Further, in the present invention, the recessed depth capacity H of piston-top surface is cylinder bore D 8-10%.
Compared with prior art, the beneficial effects of the invention are as follows：Cancave cambered surface pair is integrally descended by cylinder wall surface and piston top
The guiding of air motion, longitudinal Tumble intensity in suction stroke initial stage and compression travel latter stage cylinder can be improved, so as in original bavin
Inclined-axis swirl is further formed on the basis of large scale vortex caused by oil machine air intake duct, and near by making it
Turbulence intensity in broken obvious increase cylinder, and then accelerate rate of flame propagation, pinking tendency is reduced, improves maximum outburst pressure in cylinder
Power, realize higher engine thermal efficiency and power per liter.In addition the chamber structure is simple, easy to process, to former cylinder of diesel engine
Lid structural modification is smaller.
Brief description of the drawings
Fig. 1 is the sectional view of combustion chamber of the present invention；
Fig. 2 is the side sectional view of combustion chamber shown in Fig. 1；
Fig. 3 is the valve distribution schematic diagram on combustion chamber of the present invention.
Embodiment
For the functional structure of the present invention is expanded on further, the present invention is made with preferred embodiment below in conjunction with the accompanying drawings detailed
Illustrate, it is to be understood that protection scope of the present invention is not limited by embodiment.
As depicted in figs. 1 and 2, a kind of engine combustion for using Fuel Petroleum burning instead suitable for diesel engine proposed by the present invention
Room is burnt, the space surrounded by cylinder cover bottom surface 2, cylinder wall surface 4 and piston-top surface 3 is formed.The cylinder cover bottom surface 2 is plane, and point
Two inlet valves 6 and two exhaust valves 7 are furnished with, as shown in Figure 3；Two inlet valves 6 and two exhaust valves 7 are symmetrically distributed in straight line P both sides,
Its cathetus P passes through cylinder axis axis and parallel with the central axis M of piston pin hole 5；The center peace of the cylinder cover bottom surface 2
Equipped with spark plug 1；The piston-top surface 3 is in recessed symmetrical arc surface, and the recessed depth capacity H of piston-top surface 3 is that cylinder is straight
Footpath D 8-10%, and the minimum point line L of the arc surface is parallel with two inlet valve bottom center line N, and and central axis of air cylinder
Line intersects.
Embodiment：Engine cylinder diameter D is 113mm in the present embodiment, and compression ratio 12, cylinder cap is Four valve structure.
The bottom center line N parallel (as shown in Figure 3) of the minimum point line L of piston-top surface 3 and two inlet valves 6 and with cylinder
Mandrel line intersects.The lower cancave cambered surface of piston-top surface 3 is arc surface, and the arc radius R1 of its arc surface contour line is 154mm, the work
It is the 9.5% of 10.7mm, about cylinder bore D to fill in the recessed depth capacity H of top surface 3.The sunken arcs face mainly coordinates cylinder
Wall 4, by the guiding to air motion, increases longitudinal Tumble intensity in cylinder, entered at suction stroke initial stage and compression travel latter stage
And inclined-axis swirl is combined to form with large scale vortex in cylinder, and it is crushed near and significantly improve combustion process
In cylinder in turbulence intensity.
Combustion chamber of the present invention, which is primarily adapted for use on the basis of diesel engine, uses Fuel Petroleum burning instead；Cancave cambered surface is matched somebody with somebody under piston top
Longitudinal tumble flow in cylinder can be increased at suction stroke initial stage and compression travel latter stage by the guiding to air motion by closing cylinder wall surface
Intensity, so as to further form inclined-axis swirl on the basis of large scale vortex caused by original inlet structure, and in compression
Stop makes nearby by making turbulence intensity in the cylinder in its broken obvious increase combustion process, and then accelerate rate of flame propagation
The higher thermal efficiency and power per liter can still be realized by obtaining after engine uses Fuel Petroleum instead, and by coordinating triple-effect catalytic unit in Hou Chu
Meet the requirement of heavy type commercial engine performance and discharge under conditions of reason system is greatly simplified.
Although above in conjunction with figure, invention has been described, and the invention is not limited in above-mentioned specific embodiment party
Formula, above-mentioned embodiment is only schematical, rather than restricted, and one of ordinary skill in the art is in this hair
Under bright enlightenment, without deviating from the spirit of the invention, many variations can also be made, these belong to the guarantor of the present invention
Within shield.
Claims (2)
- A kind of 1. engine chamber for using Fuel Petroleum burning instead suitable for diesel engine, by cylinder cover bottom surface (2), cylinder wall surface (4) and the space that surrounds of piston-top surface (3) is formed, it is characterised in that：The cylinder cover bottom surface (2) is plane, and is distributed with two and enters Valve and two exhaust valves；The center of the cylinder cover bottom surface (2) is provided with spark plug (1)；The piston-top surface (3) is in recessed Symmetrical arc surface, and the minimum point line L of the arc surface is parallel with two inlet valve bottom center line N, and and cylinder axis Axis intersects.
- 2. it is applied to the engine chamber that diesel engine uses Fuel Petroleum burning instead according to claim 1, it is characterised in that The recessed depth capacity H of piston-top surface (3) is cylinder bore D 8-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638539.3A CN107355297B (en) | 2017-07-31 | 2017-07-31 | Engine combustion chamber suitable for gasoline fuel combustion instead of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638539.3A CN107355297B (en) | 2017-07-31 | 2017-07-31 | Engine combustion chamber suitable for gasoline fuel combustion instead of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355297A true CN107355297A (en) | 2017-11-17 |
| CN107355297B CN107355297B (en) | 2022-12-09 |
Family
ID=60284490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638539.3A Active CN107355297B (en) | 2017-07-31 | 2017-07-31 | Engine combustion chamber suitable for gasoline fuel combustion instead of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355297B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899174A (en) * | 2019-03-25 | 2019-06-18 | 天津大学 | A kind of combustion system for using gasoline ignition engine instead on the basis of diesel engine |
| WO2020126589A1 (en) * | 2018-12-20 | 2020-06-25 | Jaguar Land Rover Limited | Piston for an internal combustion engine |
| CN111486019A (en) * | 2020-06-28 | 2020-08-04 | 潍柴动力股份有限公司 | Combustion chamber and gas engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131757A (en) * | 1996-10-31 | 1998-05-19 | Fuji Heavy Ind Ltd | Inner-cylinder injection type engine |
| CN201546800U (en) * | 2009-09-25 | 2010-08-11 | 上汽通用五菱汽车股份有限公司 | Combustion chamber of small-displacement engine |
| CN102536502A (en) * | 2010-12-15 | 2012-07-04 | 合肥信朗动力科技有限公司 | Method for transforming diesel engine to gasoline engine |
| CN103670773A (en) * | 2012-09-18 | 2014-03-26 | 广西玉柴机器股份有限公司 | Four-valve gas engine |
| CN104033235A (en) * | 2014-06-23 | 2014-09-10 | 天津大学 | Novel rapid combustor of natural gas engine |
| CN105019998A (en) * | 2014-04-29 | 2015-11-04 | 长城汽车股份有限公司 | Engine |
| CN205135827U (en) * | 2014-11-18 | 2016-04-06 | 卡特彼勒公司 | Pistons for internal combustion engines |
-
2017
- 2017-07-31 CN CN201710638539.3A patent/CN107355297B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131757A (en) * | 1996-10-31 | 1998-05-19 | Fuji Heavy Ind Ltd | Inner-cylinder injection type engine |
| CN201546800U (en) * | 2009-09-25 | 2010-08-11 | 上汽通用五菱汽车股份有限公司 | Combustion chamber of small-displacement engine |
| CN102536502A (en) * | 2010-12-15 | 2012-07-04 | 合肥信朗动力科技有限公司 | Method for transforming diesel engine to gasoline engine |
| CN103670773A (en) * | 2012-09-18 | 2014-03-26 | 广西玉柴机器股份有限公司 | Four-valve gas engine |
| CN105019998A (en) * | 2014-04-29 | 2015-11-04 | 长城汽车股份有限公司 | Engine |
| CN104033235A (en) * | 2014-06-23 | 2014-09-10 | 天津大学 | Novel rapid combustor of natural gas engine |
| CN205135827U (en) * | 2014-11-18 | 2016-04-06 | 卡特彼勒公司 | Pistons for internal combustion engines |
Non-Patent Citations (1)
| Title |
|---|
| 司鹏等: "燃烧室和喷油器结构对重型柴油机性能与排放的影响", 《农业机械学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020126589A1 (en) * | 2018-12-20 | 2020-06-25 | Jaguar Land Rover Limited | Piston for an internal combustion engine |
| GB2580055A (en) * | 2018-12-20 | 2020-07-15 | Jaguar Land Rover Ltd | Piston for an internal combustion engine |
| CN109899174A (en) * | 2019-03-25 | 2019-06-18 | 天津大学 | A kind of combustion system for using gasoline ignition engine instead on the basis of diesel engine |
| CN111486019A (en) * | 2020-06-28 | 2020-08-04 | 潍柴动力股份有限公司 | Combustion chamber and gas engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355297B (en) | 2022-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207348958U (en) | Miller cycle engine combustion system | |
| US4211189A (en) | Internal combustion engine with dual induction system and more particularly to combustion chamber design thereof | |
| CN109899174A (en) | A kind of combustion system for using gasoline ignition engine instead on the basis of diesel engine | |
| CN107355297A (en) | A kind of engine chamber for using Fuel Petroleum burning instead suitable for diesel engine | |
| US4491104A (en) | Torch ignition type internal combustion engine | |
| KR20170070750A (en) | Gasolin-diesel complex combustion engine | |
| CN207018102U (en) | A kind of gasoline compression ignition piston combustion bowl | |
| CN107387229A (en) | A kind of combustion system of engine for using Fuel Petroleum instead suitable for diesel engine | |
| CN104405496A (en) | Natural gas engine pre-combustion chamber type gas supply device | |
| CN107339150B (en) | Engine combustion chamber for changing gasoline fuel on basis of diesel engine | |
| CN207212487U (en) | A kind of engine chamber for using Fuel Petroleum burning instead suitable for diesel engine | |
| CN210264972U (en) | Combustion system of direct-injection supercharged gasoline engine in middle-placed cylinder | |
| CN2900808Y (en) | Engine cylinder with novel combustion chamber | |
| CN104500252B (en) | A kind of Sub-region and hierarchical lean combustion engine cylinder cover | |
| CN107100756A (en) | A kind of piston for directly jetting gasoline engine channel-style combustion chamber | |
| CN208534647U (en) | A kind of low oil consumption, Low-emission gasoline machine combustion system | |
| CN206016985U (en) | Piston is compared in a kind of gasoline engine high pressure contracting of tumble flow guidance type | |
| CN110454273A (en) | A kind of combustion chamber of petrol engine | |
| CN110273777A (en) | A kind of two-cycle engine of solenoid valve control | |
| CN2617937Y (en) | Engine cylinder head of motorcycle with assistant exhaust | |
| CN201778910U (en) | Piston and cylinder head for fork truck LPG engine | |
| CN207212485U (en) | A kind of engine chamber for using Fuel Petroleum instead on the basis of diesel engine | |
| CN2521406Y (en) | Cyclone combustion chamber for high-speed ignition engine | |
| CN103334827B (en) | The ring-like directly spraying petrol engine combustion camber in cylinder in volcano, motor and vehicle | |
| CN219412728U (en) | High-tumble air inlet channel, air cylinder cover and engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Applicant after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Applicant before: Tianjin University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |