CN1651730A - Piston top whirling chamber combustion system - Google Patents
Piston top whirling chamber combustion system Download PDFInfo
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- CN1651730A CN1651730A CNA2005100458788A CN200510045878A CN1651730A CN 1651730 A CN1651730 A CN 1651730A CN A2005100458788 A CNA2005100458788 A CN A2005100458788A CN 200510045878 A CN200510045878 A CN 200510045878A CN 1651730 A CN1651730 A CN 1651730A
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- chamber
- vortex chamber
- sealing cover
- combustion system
- piston
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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 present invention relates to a piston top vortex chamber combustion system. It belong to the field of engine mixed gas formation and combustion technology. It is characterized by that a vortex chamber is placed in the top portion of piston, the closing-in position of said vortex chamber is equipped with a tangential channel, and a sealing cover is fixed on the cylinder. Said invention also provides its working principle, and said invented combustion system is applicable to various engines, and can effectively raise thermal efficiency.
Description
Technical field
The present invention relates to a kind of piston top whirling chamber combustion system, it belongs to engine mixed gas and forms and combustion field.
Background technique
As everyone knows, in the combustion system of diesel engine, the vortex chamber system is a kind of important combustion system.Owing to have main and auxiliary combustor in the vortex chamber system, can organize strong compression swirl, therefore less demanding for the injection pressure of oil sprayer, be generally 12～14MPa.Secondly, swirl chamber diesel also has stable working, NO
XWith advantage such as HC and carbon smoke exhaust be low.But the heat diffusion area of vortex chamber is relatively large, and directly contacts with cooling water again, makes that its radiation loss is bigger, makes the engine start difficulty, and Economy is relatively poor.
Summary of the invention
Bigger in order to solve the eddy cell type motor owing to radiation loss, cause starting difficulty and shortcoming such as less economical, the invention provides a kind of piston top whirling chamber combustion system, this combustion system places piston head with the vortex chamber, can reduce the radiation loss of vortex chamber, adopt high compression ratio and high air-fuel ratio, can effectively improve the thermal efficiency of combustion system like this, improve starting performance, reduce fuel consumption rate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of piston top whirling chamber combustion system, it mainly is made up of a main combustion chamber and a vortex chamber, is provided with passage between vortex chamber and the main combustion chamber.The top of piston is provided with a vortex chamber, and the bottom of cylinder head is provided with a sealing cover that is used for the vortex chamber, is provided with passage between vortex chamber and main combustion chamber, and the oil nozzle that is installed on the cylinder head stretches into the vortex chamber from sealing cover.Above-mentioned sealing cover is that hollow is estimated structure, and its top is the tubular body that is contained in the cylinder head, and the bottom is a ring bodies.Direct and the cylinder head composition one of the ring bodies of sealing cover.When piston was positioned at budc 5～25 and writes music the handle corner, the bottom ring bodies of sealing cover should begin to enter the closing in of vortex chamber.
The guiding theory of technique scheme is: when piston is positioned at budc 5～25 and writes music the handle corner, vortex chamber on the piston head is sealed by sealing cover, fuel oil sprays into the vortex chamber, carry out mixed once and burning with the pressurized air eddy current in the vortex chamber, the mixed gas that the high-temperature high-pressure fuel gas that produces is carrying not combustion pours main combustion chamber by several passage from the vortex chamber, carries out the secondary mixing and burning.
The invention has the beneficial effects as follows: this piston top whirling chamber combustion system is when piston is positioned at budc, vortex chamber on the piston head is sealed by sealing cover, fuel oil begins to spray into the vortex chamber, at first in the vortex chamber, carry out mixed once and burning, the High Temperature High Pressure inflammable mixture that produces pours main combustion chamber, finishes the secondary mixing and burning.This combustion system is rational in infrastructure, technology is simple, is applicable to multiple motor.Because the vortex chamber is set at the higher piston crown of temperature, has reduced the radiation loss of vortex chamber, adopts high compression ratio and high air-fuel ratio, can effectively improve the thermal efficiency of combustion system, improve starting performance, reduce fuel consumption rate, smokeless softly when making engine running.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is that sealing cover and cylinder head are the longitudinal section tectonic maps of the piston top whirling chamber combustion system of one.
Fig. 2 is that sealing cover is the longitudinal section tectonic maps of the piston top whirling chamber combustion system of parts.
Fig. 3 is the plan view of piston head among Fig. 1.
Among the figure: 1, cylinder liner, 2, piston, 2a, closing in, 3, cylinder head, 4, oil sprayer, 5, sealing cover, 5a, tubular body, 5b, ring bodies, 6, main combustion chamber, 7, the vortex chamber, 8, passage.
Embodiment
In the embodiment shown in Fig. 1,2,3, form a main combustion chamber 6 by cylinder liner 1, piston 2 and cylinder head 3, the top of piston 2 is provided with a vortex chamber 7, and 7 closing in 2a place is provided with 3 tangential passages 8 in the vortex chamber, has a sealing cover 5 to be fixed on the cylinder head 3.Fig. 1 is that sealing cover and cylinder head are one; Fig. 2 is that sealing cover is that parts are installed on the cylinder head, and sealing cover 5 is made up of tubular body 5a and ring bodies 5b two parts.When piston 2 was positioned at budc 15 and writes music the handle corner, the bottom ring bodies 5b of sealing cover 5 should begin to enter the closing in 2a of vortex chamber 7.Sealing cover 5 is to lean on the tubular body 5a of self to be fastened on the cylinder head 3, and an oil sprayer 6 stretches into vortex chamber 7 from tubular body 5a.
Compression stroke budc at motor, oil sprayer 6 sprays into fuel oil in the vortex chamber 7, fuel oil carries out mixed once and burning under the effect of pressurized air eddy current, the high-temperature high-pressure fuel gas that produces pours in the main combustion chamber 6 through passage 8 together with unburned a large amount of inflammable mixture still, carries out the secondary mixing and burning.Because vortex chamber 7 is arranged on the higher piston head of temperature, not only overcome traditional vortex chamber and be arranged on shortcoming on the cylinder head, reduced radiation loss, improved the thermal efficiency, improve cold-start performance, and developed the smokeless softly advantage of traditional turbulence-chamber engine.
Claims (4)
1. piston top whirling chamber combustion system, it mainly is made up of a main combustion chamber and a vortex chamber, be provided with passage between vortex chamber and the main combustion chamber, it is characterized in that: the top of piston (2) is provided with a vortex chamber (7), the bottom of cylinder head (3) is provided with a sealing cover (5) that is used for vortex chamber (7), be provided with passage (8) between vortex chamber (7) and main combustion chamber (6), the oil nozzle (4) that is installed on the cylinder head (3) stretches into the vortex chamber (7) from sealing cover (5).
2. according to the described piston top whirling chamber combustion system of claim 1, it is characterized in that: above-mentioned sealing cover (5) is a hollow structure, and its top is for being contained in the tubular body (5a) in the cylinder head (3), and the bottom is ring bodies (5b).
3. according to the described piston top whirling chamber combustion system of claim 1, it is characterized in that: direct and cylinder head (3) the composition one of the ring bodies (5b) of above-mentioned sealing cover (5).
4. according to claim 2 or 3 described piston top whirling chamber combustion systems, it is characterized in that: when piston (2) was positioned at budc 5～25 and writes music the handle corner, the bottom ring bodies (5b) of sealing cover (5) should begin to enter the closing in (2a) of vortex chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100458788A CN1320261C (en) | 2005-02-07 | 2005-02-07 | Piston top whirling chamber combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100458788A CN1320261C (en) | 2005-02-07 | 2005-02-07 | Piston top whirling chamber combustion system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1651730A true CN1651730A (en) | 2005-08-10 |
| CN1320261C CN1320261C (en) | 2007-06-06 |
Family
ID=34876420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100458788A Expired - Fee Related CN1320261C (en) | 2005-02-07 | 2005-02-07 | Piston top whirling chamber combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1320261C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443806C (en) * | 2006-05-16 | 2008-12-17 | 北京航空航天大学 | Tangential standing vortex burning chamber |
| CN105658928A (en) * | 2013-10-21 | 2016-06-08 | 三菱重工业株式会社 | Prechamber type gas engine |
| CN109854360A (en) * | 2019-02-01 | 2019-06-07 | 华峰 | Combusting room device, cylinder, engine and gasoline engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62121827A (en) * | 1985-11-21 | 1987-06-03 | Isuzu Motors Ltd | Spark assist diesel engine |
| CN87101829A (en) * | 1987-03-07 | 1987-09-16 | 梁刚 | Piston top short-term eddy combustion chamber |
| JP2816925B2 (en) * | 1993-06-29 | 1998-10-27 | 株式会社クボタ | Secondary combustion chamber diesel engine |
| CN1231385A (en) * | 1998-04-03 | 1999-10-13 | 梁剑锋 | Piston head changeable channel radiation type toroidal swirl chamber |
| JP2000179343A (en) * | 1998-12-18 | 2000-06-27 | Kubota Corp | Voltex-type combustion chamber of diesel engine |
-
2005
- 2005-02-07 CN CNB2005100458788A patent/CN1320261C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443806C (en) * | 2006-05-16 | 2008-12-17 | 北京航空航天大学 | Tangential standing vortex burning chamber |
| CN105658928A (en) * | 2013-10-21 | 2016-06-08 | 三菱重工业株式会社 | Prechamber type gas engine |
| CN105658928B (en) * | 2013-10-21 | 2018-06-26 | 三菱重工业株式会社 | Divided chamber gas engine |
| CN109854360A (en) * | 2019-02-01 | 2019-06-07 | 华峰 | Combusting room device, cylinder, engine and gasoline engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1320261C (en) | 2007-06-06 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20100207 |