CN2532249Y - Internal combustion chamber for gas storage and scavenging cavity - Google Patents
Internal combustion chamber for gas storage and scavenging cavity Download PDFInfo
- Publication number
- CN2532249Y CN2532249Y CN02230265U CN02230265U CN2532249Y CN 2532249 Y CN2532249 Y CN 2532249Y CN 02230265 U CN02230265 U CN 02230265U CN 02230265 U CN02230265 U CN 02230265U CN 2532249 Y CN2532249 Y CN 2532249Y
- Authority
- CN
- China
- Prior art keywords
- precombustion chamber
- water jacket
- chamber
- gas storage
- cavity
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Disclosed is a gas engine prechamber of a gas storage scavenging cavity, comprising a water jacket, a prechamber cavity body, a sleeve barrel and a spark plug. The water jacket has a fixed shape with a perforation in the middle and two circular cooling chambers formed inside the water jacket. The prechamber cavity body is a column and has a circular gas storage containing groove formed in the wall thickness and a prechamber inner cavity resembling a taper and formed in the middle; the prechamber cavity body is contained in the lower part of the perforation of the water jacket, and a passage is formed in the lower part of the prechamber inner cavity of the prechamber cavity body. The sleeve barrel is also a column, a stepped round hole is formed in the sleeve barrel, a circular gas storage containing groove is formed in the wall sickness, and the sleeve barrel is contained in the upper part of the perforation of the water jacket. The spark plug is contained in the round hole of the sleeve barrel and the head of the spark plug is probed into the prechamber inner cavity of the prechamber cavity body.
Description
Technical field
The utility model relates to the precombustion chamber of spark-ignition internal combustion engine, is meant a kind of internal-combustion engine precombustion chamber of gas storage scavenge space especially.
Background technique
The firing chamber is the burn chamber of exothermic process of the fuel of spark-ignition internal combustion engine, to the working procedure and the performance important influence of internal-combustion engine.
The pre-burning cell-type combustion system of spark-ignition internal combustion engine mainly is made up of precombustion chamber, main combustion chamber, spray orifice, spark plug, control valve etc.Precombustion chamber links to each other with main combustion chamber by spray orifice, links to each other with air supply system by control valve, before compression stroke top dead center, spark plug is at first lighted the mixed gas in the precombustion chamber, pre-burning room temperature, pressure are raise, and high-temperature gas sprays into main combustion chamber by spray orifice, and lights the mixed gas in the main combustion chamber.
Can light mixed gas when the spark plug gap is in arcing in the precombustion chamber, precombustion chamber will link to each other with air supply system by control valve, at intake stroke, control valve is opened, by control valve precombustion chamber and spark plug gap are carried out scavenging by air supply system, at compression stroke and expansion space stroke, control valve is closed, and prevents that gas from flowing backwards.
Pre-burning cell-type combustion system velocity of combustion is fast, is difficult for detonation, and can realize stratified mixture combustion, is applicable to the spark-ignition internal combustion engine of big cylinder diameter.The problem that existing pre-burning cell-type combustion system exists is:
Because spark plug and control valve will be installed on precombustion chamber, the spark-ignition internal combustion engine of medium and small cylinder diameter does not generally adopt pre-burning cell-type combustion system because of being subjected to spatial constraints.
Because control valve is wanted and high temperature when work, the pressurized gas contact, the operating frequency height, therefore, and the heat load of being born, mechanical load is bigger, and reliability is low, and the life-span is short, has increased the shutdown maintenance number of times time.
One of the precombustion chamber combustion system very important function be to realize stratified charge, the main purpose of stratified charge is to light weak mixture, reason is that ignition system can not be lighted weak mixture reliably.
In recent years, the performance of ignition system is increasing substantially, and high performance ignition system can be lighted weak mixture reliably, and the unified formula combustion system of many homogeneous charges is also using weak mixture to improve performance.
Simultaneously, Ke Ke Abgasgesetz also makes the design criterion of precombustion chamber combustion system that variation has taken place day by day, during igniting, for the design criterion near equivalent air fuel ratio mixed gas not only there is no need, but also makes NO in the precombustion chamber
XDischarge amount increase.Kevin D.Beaty etc. once found during 9.6 liters of natural gas used for automobile motors in research and development, along with reducing of pre-chamber volume, and NO
XDischarge amount descend, when pre-chamber volume is reduced to zero, NO
XDischarge amount drop to minimum experimental result.
Disclosed patent 96248515.2 has provided a kind of precombustion chamber that does not have control valve, and it is simple in structure, and cost is low; But because place, spark plug gap scavenge effect is poor, motor is difficult to starting.
The model utility content
The purpose of this utility model is to provide a kind of internal-combustion engine precombustion chamber of gas storage scavenge space, and the shortcoming and defect that it can overcome existing pre-burning cell-type combustion system has advantage simple in structure, that cost is low, can satisfy the requirement of igniting and flame propagation simultaneously.
The internal-combustion engine precombustion chamber of a kind of gas storage scavenge space of the utility model is characterized in that, comprising:
One water jacket, this water jacket are a solid shape, and there is a perforation centre, are formed with the cooling chamber of two annulars at the inner face of water jacket;
One precombustion chamber cavity, this precombustion chamber cavity is a Cylindrical object, and forms the gas storage tank of an annular on wall thickness, is formed with in the centre without exception like taper precombustion chamber inner chamber, this precombustion chamber cavity is placed in the bottom of water jacket perforation, and the bottom of the precombustion chamber inner chamber of this precombustion chamber cavity is formed with a passage;
One sleeve, this sleeve is a Cylindrical object, is formed with a stepped shaft circular hole in it, forms the gas storage tank of an annular on wall thickness, this sleeve is placed in the top of water jacket perforation;
One spark plug is placed in the circular hole of sleeve, and the head of this spark plug is insinuated in the precombustion chamber inner chamber of precombustion chamber cavity.
Wherein between the internal face of the outer wall of sleeve and water jacket, seal ring is arranged.
Wherein between the bottom of precombustion chamber cavity and water jacket, sealing gasket is arranged.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
See also shown in Figure 1, the internal-combustion engine precombustion chamber of a kind of gas storage scavenge space of the utility model, comprising:
One water jacket 5, this water jacket 5 is a solid shape, and there is a perforation 52 centre, is formed with the cooling chamber 51 of two annulars at the inner face of water jacket 5, and this annular cooling chamber 51 is used for the circulation of cooling water;
One precombustion chamber cavity 6, this precombustion chamber cavity 6 is a Cylindrical object, and on wall thickness, form the gas storage tank 61 of an annular, be formed with without exception like taper precombustion chamber inner chamber 7 in the centre, this precombustion chamber cavity 6 is placed in the bottom of water jacket 5 perforations 52, the bottom of the precombustion chamber inner chamber 7 of this precombustion chamber cavity 6 is formed with a passage 4, between the bottom of precombustion chamber cavity 6 and water jacket 5 sealing gasket 3 is arranged;
One sleeve 9, this sleeve 9 is a Cylindrical object, is formed with a stepped shaft circular hole 91 in it, forms the gas storage tank 92 of an annular on wall thickness, this sleeve 9 is placed in the top of water jacket 5 perforations 52, between the internal face of the outer wall of this sleeve 9 and water jacket 5 seal ring 12 is arranged;
One spark plug 10 is placed in the stepped shaft circular hole 91 of sleeve 9, and the head of this spark plug 10 is insinuated in the precombustion chamber inner chamber 7 of precombustion chamber cavity 6.
The internal-combustion engine precombustion chamber of above-described gas storage scavenge space is installed on the cylinder of generator, and wherein the passage 4 of the bottom of the precombustion chamber inner chamber 7 of precombustion chamber cavity 6 communicates with main combustion chamber 2, and this cylinder (for prior art) comprising: main combustion chamber 2, piston 1 and cylinder cap 8.
Working procedure of the present utility model is:
At intake stroke, main combustion chamber 2 internal pressures are lower, and incoming mixture enters main combustion chamber 2 by intake valve, also have a small amount of gas to flow into main combustion chamber 2 by passage 4 in the precombustion chamber inner chamber 7, and simultaneously, the portion gas in the gas storage tank 92,61 also will flow into precombustion chamber inner chamber 7.
In compression stroke, along with the rising of main combustion chamber 2 internal pressures, incoming mixture flows into precombustion chamber inner chamber 7 by main combustion chamber 2 by passage 4, and simultaneously, the portion gas in the precombustion chamber inner chamber 7 also will flow in the gas storage tank 92,61.
Behind plug ignition, flame is at first propagated in precombustion chamber inner chamber 7, precombustion chamber inner chamber 7 internal pressures raise, when precombustion chamber inner chamber 7 internal pressures are elevated to when being higher than main combustion chamber 2 internal pressures, flame sprays into main combustion chamber 2 by passage 4 and forms high-intensity turbulent flame, makes and realizes combustion process fast in the main combustion chamber 2.Along with the carrying out of expansion space stroke, the portion gas in the gas storage tank 92,61 flows into precombustion chamber inner chamber 7 and main combustion chamber 2, and each room temperature pressure descends.
In exhaust stroke, along with the discharge of waste gas, each room temperature, pressure descend.
When flame during, because the cooling action of wall, can make flame extinction and stop to propagate by slit, pore or cold wall.For reducing to pollute, indoor at combustion in IC engine, should reduce the extinguishing phenomenon of flame as far as possible.
In pre-burning cell-type combustion system, the gas of being discharged by precombustion chamber will pass through spray orifice, main combustion chamber arrives exhaust valve again, distance is far away, if suitable chamber is set in precombustion chamber, in compression process, have part inflammable mixture and residual gas and be pressed into chamber, in combustion process, because of the extinguishing effect is not burnt, expand and during exhaust stroke to the precombustion chamber scavenging, but do not discharge exhaust valve and avoid polluting, like this, just can realize the scavenging of precombustion chamber without control valve, the structure of pre-burning cell-type combustion system will be simplified, reliability will improve, and application area will enlarge.
Utilize air storing cavity to store the pre-burning chamber waste gas, guarantee the moment at spark plug sparking, the mixed gas composition at place, spark plug gap and flow field structure can satisfy the requirement of igniting and flame propagation.
Claims (3)
1, a kind of internal-combustion engine precombustion chamber of gas storage scavenge space is characterized in that, comprising:
One water jacket, this water jacket are a solid shape, and there is a perforation centre, are formed with the cooling chamber of two annulars at the inner face of water jacket;
One precombustion chamber cavity, this precombustion chamber cavity is a Cylindrical object, and forms the gas storage tank of an annular on wall thickness, is formed with in the centre without exception like taper precombustion chamber inner chamber, this precombustion chamber cavity is placed in the bottom of water jacket perforation, and the bottom of the precombustion chamber inner chamber of this precombustion chamber cavity is formed with a passage;
One sleeve, this sleeve is a Cylindrical object, is formed with a stepped shaft circular hole in it, forms the gas storage tank of an annular on wall thickness, this sleeve is placed in the top of water jacket perforation;
One spark plug is placed in the circular hole of sleeve, and the head of this spark plug is insinuated in the precombustion chamber inner chamber of precombustion chamber cavity.
2, the internal-combustion engine precombustion chamber of gas storage scavenge space according to claim 1 is characterized in that, wherein between the internal face of the outer wall of sleeve and water jacket seal ring is arranged.
3, the internal-combustion engine precombustion chamber of gas storage scavenge space according to claim 1 is characterized in that, wherein between the bottom of precombustion chamber cavity and water jacket sealing gasket is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02230265U CN2532249Y (en) | 2002-04-02 | 2002-04-02 | Internal combustion chamber for gas storage and scavenging cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02230265U CN2532249Y (en) | 2002-04-02 | 2002-04-02 | Internal combustion chamber for gas storage and scavenging cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532249Y true CN2532249Y (en) | 2003-01-22 |
Family
ID=33706292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02230265U Expired - Fee Related CN2532249Y (en) | 2002-04-02 | 2002-04-02 | Internal combustion chamber for gas storage and scavenging cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532249Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102084100B (en) * | 2008-04-25 | 2013-03-20 | 瓦锡兰芬兰有限公司 | Pre-chamber unit of a combustion engine |
| CN103775191A (en) * | 2012-09-26 | 2014-05-07 | Ge延巴赫两合无限公司 | Pre-chamber system for an internal combustion engine |
| CN108054635A (en) * | 2016-11-03 | 2018-05-18 | 联邦-富豪燃气有限公司 | With the pre-chamber spark plug and its manufacturing method of the internal combustion engine that gas is run |
| CN109690046A (en) * | 2016-09-23 | 2019-04-26 | 卡特彼勒公司 | Pre-burning chamber component for fuel injector |
| CN111577445A (en) * | 2020-05-01 | 2020-08-25 | 东风汽车集团有限公司 | Prechamber arrangement with residual exhaust gas chamber and mounting arrangement therefor |
| CN111828216A (en) * | 2020-06-28 | 2020-10-27 | 上海中船三井造船柴油机有限公司 | Cooling structure of fuel injector precombustion chamber of dual-fuel diesel engine |
| CN112211720A (en) * | 2019-07-11 | 2021-01-12 | 曼能源解决方案公司(德国曼能源解决方案股份公司子公司) | Internal combustion engine |
| CN113396274A (en) * | 2018-12-17 | 2021-09-14 | 埃斯顿·马汀·拉共达有限公司 | Engine assembly |
| US11757262B1 (en) | 2022-12-28 | 2023-09-12 | Federal-Mogul Ignition Gmbh | Prechamber spark plug and method of manufacturing the same |
-
2002
- 2002-04-02 CN CN02230265U patent/CN2532249Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102084100B (en) * | 2008-04-25 | 2013-03-20 | 瓦锡兰芬兰有限公司 | Pre-chamber unit of a combustion engine |
| CN103775191A (en) * | 2012-09-26 | 2014-05-07 | Ge延巴赫两合无限公司 | Pre-chamber system for an internal combustion engine |
| CN109690046B (en) * | 2016-09-23 | 2021-07-27 | 卡特彼勒公司 | Pre-chamber assembly for a fuel injector |
| CN109690046A (en) * | 2016-09-23 | 2019-04-26 | 卡特彼勒公司 | Pre-burning chamber component for fuel injector |
| CN108054635A (en) * | 2016-11-03 | 2018-05-18 | 联邦-富豪燃气有限公司 | With the pre-chamber spark plug and its manufacturing method of the internal combustion engine that gas is run |
| CN108054635B (en) * | 2016-11-03 | 2019-11-19 | 联邦-富豪燃气有限公司 | With the pre-chamber spark plug and its manufacturing method of the internal combustion engine that gas is run |
| CN113396274A (en) * | 2018-12-17 | 2021-09-14 | 埃斯顿·马汀·拉共达有限公司 | Engine assembly |
| CN113396274B (en) * | 2018-12-17 | 2024-04-09 | 埃斯顿·马汀·拉共达有限公司 | Engine assembly |
| US12000329B2 (en) | 2018-12-17 | 2024-06-04 | Aston Martin Lagonda Limited | Assemblies for engines |
| CN112211720A (en) * | 2019-07-11 | 2021-01-12 | 曼能源解决方案公司(德国曼能源解决方案股份公司子公司) | Internal combustion engine |
| CN111577445A (en) * | 2020-05-01 | 2020-08-25 | 东风汽车集团有限公司 | Prechamber arrangement with residual exhaust gas chamber and mounting arrangement therefor |
| CN111828216A (en) * | 2020-06-28 | 2020-10-27 | 上海中船三井造船柴油机有限公司 | Cooling structure of fuel injector precombustion chamber of dual-fuel diesel engine |
| US11757262B1 (en) | 2022-12-28 | 2023-09-12 | Federal-Mogul Ignition Gmbh | Prechamber spark plug and method of manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |