CN204126718U - Explosive motor - Google Patents
Explosive motor Download PDFInfo
- Publication number
- CN204126718U CN204126718U CN201420305179.7U CN201420305179U CN204126718U CN 204126718 U CN204126718 U CN 204126718U CN 201420305179 U CN201420305179 U CN 201420305179U CN 204126718 U CN204126718 U CN 204126718U
- Authority
- CN
- China
- Prior art keywords
- chamber
- explosive motor
- gas
- precombustion chamber
- firing chamber
- 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
Links
Classifications
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- 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
- F02B19/00—Engines characterised by precombustion chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/144—Sensor in intake manifold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
-
- 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 utility model relates to explosive motor.Have firing chamber (2) and precombustion chamber (7) according to explosive motor of the present utility model, wherein precombustion chamber (7) is connected pipeline (8) and is connected to firing chamber (2).Precombustion chamber (7) is designed to measuring chamber, it has multiple sensor (9), for measuring the various gas properties of the gas in precombustion chamber (7), wherein explosive motor is configured as follows, the initial period of the compression stroke between the on-stream period being connected to explosive motor (1) produced by connecting pipeline (8) between precombustion chamber (7) and firing chamber (2) is open, and the combustion incident in firing chamber (2) is interrupted before starting.
Description
Technical field
The utility model relates to explosive motor.
Background technique
Between the on-stream period of explosive motor, usually measure the character of the air inlet in intake manifold.Particularly, this relates to the temperature and (boosting) pressure of determining inlet air.Measure as a supplement; usually also the residual gas composition under suction pressure (boost pressure) is estimated based on exhaust gas recirculation rate; or alternately, the residual gas composition under utilizing the lambda sensor in intake manifold directly to measure suction pressure (boost pressure).And, also need the relative air humidity measuring the fresh air sucked, because be significant for this composition for the residual gas in cylinder charging (mass fraction of burning and steam content).
Even if current available technology means can obtain sensor signal at measurement gas pressure within the relative short time with during oxygen content, thermometric speed usually also by following fact restriction or destruction, namely uses during sensor technology and needs maximum robustness in Rail car manufacture.And the modeling accuracy in the determination of cylinder charging depends on the volumetric efficiency (namely effectively or the ratio of actual volume flow and theoretical volume flow) of explosive motor, and it can change along with the life-span of explosive motor.
EP 1830059A1 discloses the apparatus and method of the running for controlling explosive motor, wherein, except other, provide valve mechanism and cylinder pressure sensor, valve mechanism is for changing the valve-opening characteristics of the valve in air inlet side and the valve on exhaust side, cylinder pressure sensor, for measuring the cylinder pressure be provided in firing chamber, wherein calculates based on the suction pressure during the valve overlap between the valve in air inlet side and the valve on exhaust side the air quantity being inhaled into firing chamber.And, the exhaust pressure during this valve overlap is estimated based on the cylinder pressure measured by means of cylinder pressure sensor and based on the load of explosive motor.
JP 2009203952A discloses, except other, a kind of explosive motor with auxiliary combustion chamber, wherein measure the internal gas pressure in described auxiliary combustion chamber by means of auxiliary combustion chamber pressure transducer, and wherein provide auxiliary combustion chamber gas to be fed to control system, to control the opening degree of gas-pressure controlling valve or gas flow control valve based on the internal gas pressure in auxiliary combustion chamber.In this case, the peak value of the internal gas pressure during auxiliary combustion chamber gas feeding control system determination compression stroke, and if some words, if described peak value is outside allowed band, change the opening degree of gas-pressure controlling valve or gas flow control valve.Expected results is the fluctuation avoiding combustion process in this way.
EP 0588593A2 discloses, and except other, a kind of explosive motor with main combustion chamber and precombustion chamber, which provides the access portal between main combustion chamber and precombustion chamber, and it can close this access portal by means of control valve.And, providing the control unit for controlling control valve, at exhaust phase and closed control valve during the charging stage, and opening control valve during the latter end of compression stage.In addition, additionally provide the control unit for controlling fuel injection nozzle, this fuel injection nozzle is used for injecting fuel in precombustion chamber when control valve is closed or during exhaust phase.
Model utility content
Target of the present utility model is to provide a kind of a kind of method of explosive motor and running for controlling explosive motor, and wherein said method allows reliably determining of during combustion process gas property, and allows explosive motor is operated based on this.
By according to the explosive motor of feature disclosed in the present application and by realizing this target according to the method for additional feature disclosed in the present application.
Have firing chamber and precombustion chamber according to explosive motor of the present utility model, wherein precombustion chamber is connected pipeline and is connected to firing chamber.
The feature of explosive motor is: precombustion chamber is designed to measuring chamber, it has multiple sensor, for measuring the various gas properties of the gas in precombustion chamber, wherein explosive motor is configured as follows, the initial period of the compression stroke between the on-stream period being connected to explosive motor produced by connecting pipeline between precombustion chamber and firing chamber is open, but combustion incident is in a combustion chamber interrupted before starting.This interruption can occur automatically, particularly when the gas compression in firing chamber increases.
Particularly, the utility model is based on the concept of measurement gas character direct during the combustion process in the running of explosive motor.In order to this object, the utility model describes the setting of precombustion chamber in detail, and precombustion chamber is set to measuring chamber, and it has multiple sensor, and is connected pipeline and is connected to Actual combustion room.After connecting pipeline is closed, particularly during combustion process, the sensor element being arranged in precombustion chamber can be utilized in precombustion chamber or measuring chamber in this way to determine the gas property (such as pressure, temperature, oxygen content and residual gas composition (if any)) of being correlated with.
During compression stroke, be open at first in precombustion chamber or the connection that produced by connecting pipeline between measuring chamber and firing chamber, the gas property therefore in precombustion chamber or measuring chamber is consistent with the character of the gas flowing into cylinder.When internal pressure of combustion chamber rises further due to the compression of gas, precombustion chamber or the connecting pipeline between measuring chamber and firing chamber were closed or are interrupted before combustion incident occurs in a combustion chamber, therefore, it is possible to measure the above-mentioned gas character of the gas in precombustion chamber or measuring chamber by means of the sensor element in measuring chamber, it corresponds to the gas property in the firing chamber before connecting pipeline is closed.
Such as, the gas property through determining then can be used to such as with the delay relative to combustion incident or determine during operation cycle subsequently and the best of the air path correspondingly set up in combustion engine and/or fuel path actuator setting.
In one example, at least one in described sensor is temperature transducer.
In one example, at least one in described sensor is lambda sensor.
In one example, at least one in described sensor is pressure transducer.
In addition, the utility model also relates to a kind of method of the running for controlling explosive motor, and wherein explosive motor has firing chamber and precombustion chamber, and wherein precombustion chamber is connected pipeline and is connected to firing chamber.Here, precombustion chamber is used as measuring chamber, the various gas properties of the gas in precombustion chamber are measured during wherein there is combustion incident in a combustion chamber, wherein, the initial period of the compression stroke between the on-stream period being connected to explosive motor produced by connecting pipeline between precombustion chamber and firing chamber is open, and combustion incident is in a combustion chamber interrupted before starting.
According to an embodiment, during the operation cycle subsequently of explosive motor, set up the setting of at least one air path actuator and/or at least one fuel path actuator based on the gas property through determining.
Other embodiments of the present utility model can be found in accompanying drawing and dependent claims.
Accompanying drawing explanation
The utility model is explained in the mode of preferred embodiment by reference to accompanying drawing, wherein:
Fig. 1 shows the schematic diagram of explosive motor during compression stroke according to an embodiment of the present utility model; And
Fig. 2 shows the schematic diagram of explosive motor during expansion stroke in Fig. 1.
Embodiment
By referring to the schematic diagram in Fig. 1 and Fig. 2 by way of example more the explanation of details according to the structure of explosive motor of the present utility model and running, operating condition during wherein figure 1 illustrating compression stroke, and the operating condition during wherein figure 2 show expansion stroke.
According to Fig. 1, the compressor 5 of the turbosupercharger 4 of explosive motor 1 in its air inlet side of conventional engine form obtains precompressed air, and wherein fresh air is fed to compressor 5 via air-strainer (not shown).In this case, the compressor 5 of turbosupercharger 4 is driven by exhaust side turbine 6 in a known way via common axle.
Explosive motor 1 has the firing chamber 2 with piston 3, and this piston can move in firing chamber 2, and the state wherein shown in Fig. 1 corresponds to compression stroke, and the state shown in Fig. 2 corresponds to expansion stroke (working stroke).
As equally schematically illustrated in fig. 1 and 2, precombustion chamber 7 is connected pipeline 8 and is connected to firing chamber 2 according to explosive motor 1 of the present utility model.Precombustion chamber 7 has suitable sensor element, and for measuring the associated gas character of the gas in precombustion chamber 7, wherein in the exemplary embodiment, each sensor element is provided for measuring pressure, temperature and oxygen content.
According to Fig. 1, the connecting pipeline 8 between firing chamber 2 and precombustion chamber 7 is open at first during compression stroke, and this has the value of the above-mentioned status parameter of the gas in firing chamber 2 and precombustion chamber 7 effect all consistent in each case.
Due to the pressure increase that the gas compression in firing chamber 2 increases and is associated in firing chamber 2, therefore can there is igniting and combustion incident in firing chamber 2 before, there is the interruption of the closedown of connecting pipeline 8 or the connection between precombustion chamber 7 and firing chamber 2.
During the expansion stroke following igniting closely or working stroke, as shown in Figure 2, precombustion chamber 7 is separated with firing chamber 2 due to the connecting pipeline 8 of closing, therefore, it is possible to measure the above-mentioned status parameter of the gas in precombustion chamber 7 by means of sensor element 9, it corresponds to the status parameter of the gas in the firing chamber 2 just before connecting pipeline 8 is closed.Therefore the value obtained for these status parameters (such as pressure, temperature, oxygen content) (namely has the delay corresponding to a combustion incident) and is used to set up the best setting of air path and fuel path actuator during operation cycle subsequently.
Claims (6)
1. an explosive motor, it has firing chamber (2) and precombustion chamber (7), and wherein said precombustion chamber (7) is connected pipeline (8) and is connected to described firing chamber (2),
It is characterized in that:
Described precombustion chamber (7) is designed to measuring chamber, and it has multiple sensor (9), for measuring the various gas properties of the gas in described precombustion chamber (7);
Wherein said explosive motor (1) is configured as follows, the initial period of the compression stroke between the on-stream period being connected to described explosive motor (1) produced by described connecting pipeline (8) between described precombustion chamber (7) and described firing chamber (2) is open, and the combustion incident in described firing chamber (2) is interrupted before starting.
2. explosive motor according to claim 1,
It is characterized in that:
When the compression of the gas in described firing chamber (2) increases, the described interruption of described connection occurs automatically.
3. explosive motor according to claim 1 and 2,
It is characterized in that:
At least one in described sensor (9) is temperature transducer.
4. explosive motor according to claim 1 and 2,
It is characterized in that:
At least one in described sensor (9) is lambda sensor.
5. explosive motor according to claim 1 and 2,
It is characterized in that:
At least one in described sensor (9) is pressure transducer.
6. explosive motor according to claim 1 and 2,
It is characterized in that:
Also comprise at least one air path actuator and/or at least one fuel path actuator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013210965.2 | 2013-06-12 | ||
| DE201310210965 DE102013210965B3 (en) | 2013-06-12 | 2013-06-12 | Internal combustion engine i.e. reciprocating engine, for vehicle, has prechamber designed as measuring chamber, which comprises multiple sensors for measuring different gas properties of gas in prechamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126718U true CN204126718U (en) | 2015-01-28 |
Family
ID=51353203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305179.7U Expired - Fee Related CN204126718U (en) | 2013-06-12 | 2014-06-09 | Explosive motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204126718U (en) |
| DE (1) | DE102013210965B3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9903264B1 (en) | 2016-10-18 | 2018-02-27 | Caterpillar Inc. | Control system for an engine cylinder with fuel control of pre chamber and main chamber |
| US10458312B2 (en) * | 2017-07-21 | 2019-10-29 | Caterpillar Inc. | Systems and methods for controlling enriched prechamber stoichiometry |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454356A (en) * | 1992-09-14 | 1995-10-03 | Isuzu Ceramics Research Institute Co., Ltd. | Engine with pre-chamber |
| JP3404886B2 (en) * | 1994-05-16 | 2003-05-12 | いすゞ自動車株式会社 | Gas engine |
| JP4404030B2 (en) * | 2004-10-07 | 2010-01-27 | トヨタ自動車株式会社 | Control device and control method for internal combustion engine |
| JP5055164B2 (en) * | 2008-02-29 | 2012-10-24 | 三菱重工業株式会社 | Sub-chamber gas engine and power generation equipment |
| US8050848B2 (en) * | 2008-10-24 | 2011-11-01 | Hoerbiger Kompressortechnik Holding Gmbh | Method and system for igniting a lean fuel mixture in a main chamber of an internal combustion engine |
| DE102011081928A1 (en) * | 2011-08-31 | 2013-02-28 | Man Diesel & Turbo Se | Method for monitoring check valves arranged in gas supply lines of a gas engine |
-
2013
- 2013-06-12 DE DE201310210965 patent/DE102013210965B3/en active Active
-
2014
- 2014-06-09 CN CN201420305179.7U patent/CN204126718U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013210965B3 (en) | 2014-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20210609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |