CN107989717A - A kind of diesel engine sprayed water outside cylinder - Google Patents
A kind of diesel engine sprayed water outside cylinder Download PDFInfo
- Publication number
- CN107989717A CN107989717A CN201711144760.XA CN201711144760A CN107989717A CN 107989717 A CN107989717 A CN 107989717A CN 201711144760 A CN201711144760 A CN 201711144760A CN 107989717 A CN107989717 A CN 107989717A
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- China
- Prior art keywords
- water
- diesel engine
- cylinder
- inlet manifold
- main body
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/028—Adding water into the charge intakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/12—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to the diesel engine sprayed water outside a kind of cylinder, the diesel engine includes diesel engine main body and the outer water spraying mechanism of cylinder, diesel engine main body is equipped with inlet manifold, the outer water spraying mechanism of cylinder includes water tank, the water jet being connected with water tank and the controller being electrically connected with water jet, water jet and is connected with inlet manifold.Compared with prior art, the present invention introduces the water into cylinder by spraying water into inlet manifold, can reduce intake air temperature, improve density of the induced air, and then improve diesel engine power per liter；Meanwhile the water being introduced into cylinder can also absorb the heat in cylinder, further reduce internal cylinder temperature, effectively to suppress the formation of NOx, NOx emission, energy conservation and environmental protection are reduced；In addition, the water in cylinder evaporates after absorbing heat, become high temperature and high pressure steam, as extra work working medium, promote piston acting, improve the diesel engine thermal efficiency.
Description
Technical field
The invention belongs to diesel engine technologies field, is related to the diesel engine sprayed water outside a kind of cylinder.
Background technology
Diesel engine, that is, diesel engine, as one kind of internal combustion engine, has the advantages that moment of torsion is big, while its compression ratio is high,
Fuel consumption average specific gasoline engine is low, therefore its fuel economy is preferable.But the maximum discharge of diesel engine especially NOx emission
The application of diesel engine is limited, and diesel engine chance produces more smog, and hazardous particulate matter discharge capacity is also larger, to ring
Border causes serious pollution.
Increasingly serious with energy and environment problem, the disposal of pollutants problem of diesel engine is also more and more urgent, section
Energy emission reduction becomes one of research direction of diesel engine.At present, particulate matter trap or selective catalytic reduction often are used
Device etc. carries out the exhaust aftertreatment of diesel engine.Although such method can reduce diesel engine to a certain extent
Pollutant emission, but due to the emission-control equipment for adding complexity and extra catalytic specie, cause its cost to greatly improve.
Simultaneously as the raising of tail gas end exhaust back pressure, residual gas rate is lifted during causing in-cylinder combustion, to efficient burning in cylinder
More significant inhibitory action is generated, diesel engine oil consumption performance deterioration is caused, limits the application of diesel engine.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of thermal efficiency is high and saves
The diesel engine sprayed water outside cylinder that can be environmentally friendly.
The purpose of the present invention can be achieved through the following technical solutions：
The diesel engine sprayed water outside a kind of cylinder, the diesel engine include diesel engine main body and the outer water spraying mechanism of cylinder, the bavin
Oil machine main body is equipped with inlet manifold, the outer water spraying mechanism of the cylinder includes water tank, the water jet that is connected with water tank with
And the controller being electrically connected with water jet, the water jet are connected with inlet manifold.Under the control of the controller, water tank
In water through water jet spray into inlet manifold in, with air mixing after together with enter diesel engine main body in, can not only reduce into
Temperature degree, additionally it is possible to heat in the cylinder of diesel engine main body is absorbed by the evaporation of water, and then effectively suppresses the formation of NOx.In addition,
The evaporation of water can also increase working medium, promote piston acting, improve the thermal efficiency.
The diesel engine main body includes diesel-engine body, multiple cylinders being disposed in parallel on diesel-engine body, sets
Inlet manifold between cylinder and inlet manifold and the fuel injector being connected with the inside of cylinder, the inlet manifold are led to
Cross inlet manifold with the inside of cylinder to be connected, the fuel injector is electrically connected with the controller.Water in water tank is through water jet
Into in inlet manifold, enter respectively through each inlet manifold in corresponding cylinder after being mixed with air.Meanwhile each cylinder
Fuel injector directly sprays into diesel oil in the cylinder, and by distributive value data Real-time Feedback into controller.
The water jet is fixed on inlet manifold, and the nozzle of the water jet is located at inlet manifold
It is interior.The water that nozzle can ensure to spray in water jet is quickly uniformly mixed with the air in inlet manifold.Water in water jet leads to
Cross nozzle to be injected directly into inlet manifold, in each cylinder that diesel engine main body is respectively enterd after mixing with air.Using direct
Water is sprayed into the mode of inlet manifold, makes no matter diesel-engine body includes several cylinders, all only needs a water jet, and
A water jet need to not be increased at each cylinder, thus cost is greatly saved.
The diesel engine main body is equipped with the exhaust pipe led to cylinders.The exhaust gas produced during cylinder operation leads to
Cross corresponding exhaust pipe discharge.
The diesel engine main body is equipped with speed probe, which is electrically connected with the controller.Revolution speed sensing
Device can monitor the rotating speed of diesel engine in real time, and feed data back in controller.
Water pump is equipped between the water tank and water jet, which is electrically connected with the controller.In the control of controller
Under, after water pump pressurizes the water in water tank, it is sent into water jet.Water pump can both be driven by motor, can also be set directly at
In diesel engine main body, driven by transmission mechanism (such as Timing Belt).
Pressure maintaining valve is equipped between the water pump and water jet.Pressure maintaining valve can be controlled hydraulic pressure, be in hydraulic pressure
In suitable scope, ensure job stability.
The pressure maintaining valve is equipped with overflow pipe, which is equipped with overflow valve, the overflow pipe and water tank
Inside is connected.After setting a constant pressure to pressure maintaining valve, the hydraulic pressure of output just will not change, if hydraulic pressure mistake in pressure maintaining valve
Height, overflow valve are opened, and unnecessary water is just flow back into water tank through overflow pipe, can either play the role of fast and stable hydraulic pressure,
The waste of water is also avoided that at the same time.
Filter is equipped with the water tank, which is connected with water pump.Water in water tank passes through filter mistake
After filter, into water pump.
Liquid level sensor is equipped with the water tank, which is electrically connected with the controller.Liquid level sensor is real
When monitor liquid level in water tank, surplus water is judged, and immediate feedback is to controller, when the liquid level in water tank is less than default
It during value, will alarm, water required supplementation with prompting, avoid the occurrence of the hydropenic situation of storage.
In the present invention, each parts can be integrated on diesel-engine body, to reduce overall occupied space.
The present invention in practical application, controller gathers the distributive value data of the rotating speed of diesel engine main body, fuel injector in real time,
To judge the current working of diesel engine：If need not spray water, next round data acquisition is carried out；If desired spray water, controller is certainly
It is dynamic to calculate required water spray and water spray moment, instruction then is sent to water jet, makes water jet at the corresponding moment to air inlet
The water of respective amount is sprayed into manifold, controller carries out next round data acquisition afterwards.
Compared with prior art, the invention has the characteristics that：
1) by spraying water into inlet manifold, and introduce the water into cylinder, intake air temperature can be reduced, improve into airtight
Degree, and then improve diesel engine power per liter；Meanwhile the water being introduced into cylinder can also absorb the heat in cylinder, further reduce
Internal cylinder temperature, effectively to suppress the formation of NOx, reduces NOx emission, energy conservation and environmental protection；In addition, after the water in cylinder absorbs heat
Evaporation, becomes high temperature and high pressure steam, as extra work working medium, promotes piston acting, improves the diesel engine thermal efficiency；
2) water is directly sprayed into inlet manifold, both easy to individually be adjusted to water spray, flexibility is good, while can keep away
Exempt from the drawbacks of water spray or direct in-cylinder water injection can cause cost excessive because of the increase of water jet quantity in inlet manifold, and the present invention
Do not need to make excessive change to diesel engine main body, it is applied widely easy to carry out simple and quick transformation to existing diesel；
3) monitoring in real time and control carry out diesel engine by controller, to adjust water spray moment and water spray, and makes spray
Water is adapted with the load of diesel engine, and then improves the thermal efficiency of diesel engine.
Brief description of the drawings
Fig. 1 is the overall structure diagram of diesel engine in embodiment 1；
Fig. 2 is the control flow chart of diesel engine in embodiment 1；
Description of symbols in figure：
1-water tank, 2-filter, 3-water pump, 4-pressure maintaining valve, 5-water jet, 6-liquid level sensor, 7-control
Device, 8-fuel injector, 9-diesel-engine body, 10-inlet manifold, 11-cylinder, 12-inlet manifold, 13-exhaust pipe, 14-
Nozzle, 15-overflow pipe.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment 1：
The diesel engine sprayed water outside a kind of cylinder as shown in Figure 1, the diesel engine include diesel engine main body and the outer sprinkler of cylinder
Structure, diesel engine main body are equipped with inlet manifold 10, the water jet that the outer water spraying mechanism of cylinder includes water tank 1, is connected with water tank 1
5 and the controller 7 that is electrically connected with water jet 5, water jet 5 be connected with inlet manifold 10.
Wherein, diesel engine main body includes 9,4 cylinders being disposed in parallel on diesel-engine body 9 11 of diesel-engine body, sets
Put the inlet manifold 12 between cylinder 11 and inlet manifold 10 and the fuel injector 8 being connected with the inside of cylinder 11, air inlet
Manifold 10 is connected by inlet manifold 12 with the inside of cylinder 11, and fuel injector 8 is electrically connected with controller 7.Water jet 5 is fixed and set
Put on inlet manifold 10, and the nozzle 14 of water jet 5 is located in inlet manifold 10.Diesel engine main body is equipped with and cylinder 11
The exhaust pipe 13 being connected.Diesel engine main body is equipped with speed probe, which is electrically connected with controller 7.
Water pump 3 is equipped between water tank 1 and water jet 5, which is electrically connected with controller 7.Water pump 3 and water jet 5 it
Between be equipped with pressure maintaining valve 4.Pressure maintaining valve 4 is equipped with overflow pipe 15, which is equipped with overflow valve, overflow pipe 15 and water tank 1
Inside be connected.Filter 2 is equipped with water tank 1, which is connected with water pump 3.Liquid level is equipped with water tank 1 to pass
Sensor 6, the liquid level sensor 6 are electrically connected with controller 7.
As shown in Fig. 2, in practical application, controller 7 gathers the oil spout of the rotating speed, fuel injector 8 of diesel engine main body in real time
Data are measured, to judge the current working of diesel engine：If need not spray water, next round data acquisition is carried out；If desired spray water, control
Device 7 processed calculates required water spray and water spray moment automatically, then sends instruction to water jet 5, makes water jet 5 when corresponding
The water that respective amount is sprayed into inlet manifold 10 is carved, controller 7 carries out next round data acquisition afterwards.
Embodiment 2：
In the present embodiment, diesel engine main body includes 6 cylinders 11 being disposed in parallel on diesel-engine body 9, remaining is the same as real
Apply example 1.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously easily can make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel disclose according to the present invention, do not depart from improvement that scope made and modification all should be the present invention's
Within protection domain.
Claims (10)
- A kind of 1. diesel engine sprayed water outside cylinder, it is characterised in that the diesel engine includes diesel engine main body and the outer water spraying mechanism of cylinder, The diesel engine main body is equipped with inlet manifold (10), and the outer water spraying mechanism of the cylinder includes water tank (1) and water tank (1) water jet (5) being connected and the controller (7) being electrically connected with water jet (5), the water jet (5) and air inlet are total Pipe (10) is connected.
- 2. the diesel engine sprayed water outside a kind of cylinder according to claim 1, it is characterised in that the diesel engine main body includes Diesel-engine body (9), multiple cylinders (11) being disposed in parallel on diesel-engine body (9), be arranged on cylinder (11) and air inlet is total Manage the inlet manifold (12) between (10) and the fuel injector (8) being connected with the inside of cylinder (11), the inlet manifold (10) it is connected by inlet manifold (12) with the inside of cylinder (11), the fuel injector (8) is electrically connected with controller (7).
- 3. the diesel engine sprayed water outside a kind of cylinder according to claim 2, it is characterised in that the water jet (5) is fixed It is arranged on inlet manifold (10), and the nozzle (14) of the water jet (5) is located in inlet manifold (10).
- 4. the diesel engine sprayed water outside a kind of cylinder according to claim 2, it is characterised in that set in the diesel engine main body There is the exhaust pipe (13) being connected with cylinder (11).
- 5. the diesel engine sprayed water outside a kind of cylinder according to claim 2, it is characterised in that set in the diesel engine main body There is speed probe, which is electrically connected with controller (7).
- 6. the diesel engine sprayed water outside a kind of cylinder according to claim 1, it is characterised in that the water tank (1) and spray Water pump (3) is equipped between hydrophone (5), which is electrically connected with controller (7).
- 7. the diesel engine sprayed water outside a kind of cylinder according to claim 6, it is characterised in that the water pump (3) and water spray Pressure maintaining valve (4) is equipped between device (5).
- 8. the diesel engine sprayed water outside a kind of cylinder according to claim 7, it is characterised in that set on the pressure maintaining valve (4) There is overflow pipe (15), which is equipped with overflow valve, and the overflow pipe (15) is connected with the inside of water tank (1) It is logical.
- 9. the diesel engine sprayed water outside a kind of cylinder according to claim 6, it is characterised in that set in the water tank (1) There is filter (2), which is connected with water pump (3).
- 10. the diesel engine sprayed water outside a kind of cylinder according to claim 1, it is characterised in that set in the water tank (1) There is liquid level sensor (6), which is electrically connected with controller (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801336 | 2017-09-07 | ||
| CN2017108013361 | 2017-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989717A true CN107989717A (en) | 2018-05-04 |
Family
ID=62031531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144760.XA Pending CN107989717A (en) | 2017-09-07 | 2017-11-17 | A kind of diesel engine sprayed water outside cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN107989717A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826727A (en) * | 2019-04-03 | 2019-05-31 | 王德云 | A kind of energy-saving and emission-reduction diesel emulsion method |
| JP2021110294A (en) * | 2020-01-10 | 2021-08-02 | トヨタ自動車株式会社 | Intake structure for internal combustion engine |
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| CN102269081A (en) * | 2011-08-16 | 2011-12-07 | 天津大学 | Air intake tube water spray system of engine |
| CN202140201U (en) * | 2011-06-22 | 2012-02-08 | 浙江吉利汽车研究院有限公司 | Low-emission diesel engine system |
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| WO2016177544A1 (en) * | 2015-05-07 | 2016-11-10 | Robert Bosch Gmbh | Method for operating a device for injecting water into an internal combustion engine |
| CN106194507A (en) * | 2016-07-08 | 2016-12-07 | 哈尔滨工程大学 | Realize supercharged diesel engine emulsifying combustion based on ejector pump and reduce NOxthe device of discharge |
| CN106677926A (en) * | 2016-12-09 | 2017-05-17 | 同济大学 | Internal combustion engine structure with superheated water being sprayed into cylinder |
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2017
- 2017-11-17 CN CN201711144760.XA patent/CN107989717A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672226A (en) * | 2009-11-03 | 2010-03-17 | 李德平 | Clean multi-fuel internal combustion engine |
| CN202140201U (en) * | 2011-06-22 | 2012-02-08 | 浙江吉利汽车研究院有限公司 | Low-emission diesel engine system |
| CN102269081A (en) * | 2011-08-16 | 2011-12-07 | 天津大学 | Air intake tube water spray system of engine |
| CN105164396A (en) * | 2013-04-25 | 2015-12-16 | 丰田自动车株式会社 | Multi-cylinder internal combustion engine |
| CN204312211U (en) * | 2014-11-11 | 2015-05-06 | 山东斯坦福机电设备有限公司 | Direct-injection diesel generator set microcomputer controls gasoline-saving device |
| WO2016177544A1 (en) * | 2015-05-07 | 2016-11-10 | Robert Bosch Gmbh | Method for operating a device for injecting water into an internal combustion engine |
| CN106194507A (en) * | 2016-07-08 | 2016-12-07 | 哈尔滨工程大学 | Realize supercharged diesel engine emulsifying combustion based on ejector pump and reduce NOxthe device of discharge |
| CN106677926A (en) * | 2016-12-09 | 2017-05-17 | 同济大学 | Internal combustion engine structure with superheated water being sprayed into cylinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826727A (en) * | 2019-04-03 | 2019-05-31 | 王德云 | A kind of energy-saving and emission-reduction diesel emulsion method |
| CN109826727B (en) * | 2019-04-03 | 2023-08-29 | 王德云 | Energy-saving emission-reducing diesel oil emulsifying method |
| JP2021110294A (en) * | 2020-01-10 | 2021-08-02 | トヨタ自動車株式会社 | Intake structure for internal combustion engine |
| JP7298484B2 (en) | 2020-01-10 | 2023-06-27 | トヨタ自動車株式会社 | Intake structure of internal combustion engine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180504 |