CN108869105A - A kind of engine water injection system - Google Patents
A kind of engine water injection system Download PDFInfo
- Publication number
- CN108869105A CN108869105A CN201810641583.4A CN201810641583A CN108869105A CN 108869105 A CN108869105 A CN 108869105A CN 201810641583 A CN201810641583 A CN 201810641583A CN 108869105 A CN108869105 A CN 108869105A
- Authority
- CN
- China
- Prior art keywords
- water
- water spray
- unit
- engine
- subelement
- 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
Links
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
- F02M25/03—Adding water into the cylinder or the pre-combustion chamber
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
-
- 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
Landscapes
- 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)
Abstract
The present invention relates to field of automobile more particularly to a kind of engine water injection systems.Wherein, which includes：Engine, including combustion chamber；Water spray unit comprising the water spray outlet of water spray outlet, water spray unit is set in combustion chamber；Acquisition unit, for acquiring the workload or delivery temperature of engine；Control unit is connect with water spray unit and acquisition unit respectively, for the workload or delivery temperature according to engine, controls the water spray of water spray unit.Therefore, because water spray outlet is located in combustion chamber, water spraying atomization effect is good, and water spray opportunity control flexibly, is not limited by valve opening and closing；Meanwhile in-cylinder water injection technology can effectively reduce compression terminal temperature, on the one hand, can abolish pinking limitation and increase compression ratio, improve the thermal efficiency；On the other hand, NO can be reduced by reducing cylinder temperaturexDischarge.
Description
Technical field
The present invention relates to field of automobile more particularly to a kind of engine water injection systems.
Background technique
Following petrol engine also needs to mention for user while the increasingly harsh oil consumption of satisfaction and emission regulation
For high torque, the product of high power and low cost.Start although high compression ratio, small-sized supercharging technology can be promoted to greatest extent
The machine thermal efficiency, but the efficiency of engine and performance boost are limit by pinking, usually inhibit pinking can be by using cooling EGR
Technology, variable compression ratio, miller circulation and water-jet technology.
It, can be by using EGR technology, variable for the pinking for inhibiting high compression ratio, small-sized pressurization and in-cylinder direct-jet to cause
Compression ratio technique, Miller circulating technology and water-jet technology.But using EGR technology, engine component change is larger, and
With the raising of EGR concentration, oxygen concentration is decreased in gaseous mixture in cylinder, so that gaseous mixture in cylinder be caused to be difficult to light.It can
Ratios application cost is higher, and kinematic pair increases, so that frictional work be made to increase.Miller circulation will affect air inlet tumble flow,
And air inlet reflux will increase booster control difficulty.And water-jet technology compares other technologies, has control simply, operating condition practicability
The advantages such as strong.
Chinese patent CN201110234776.6 discloses a kind of engine air inlet tube water injection system, can be realized to starting
The control of machine combustion chamber watering quantity.But the research long-term by inventor, the existing technology has at least the following problems for discovery：
Due to the engine air inlet tube water injection system air inlet pipe apart from combustion chamber farther out, easily formed water droplet and fail effectively
The pinking of ground inhibition engine.
Summary of the invention
One purpose of the embodiment of the present invention is intended to provide a kind of engine water injection system, can effectively inhibit and start
The pinking of machine.
It is that it is realized by adopting the following technical scheme that the embodiment of the present invention, which solves its technical problem,.
In a first aspect, the embodiment of the present invention provides a kind of engine water injection system, including：
Engine, including combustion chamber；
Water spray unit comprising the water spray outlet of water spray outlet, the water spray unit is set in the combustion chamber；
Acquisition unit, for acquiring the workload or delivery temperature of the engine；
Control unit is connect with the water spray unit and the acquisition unit respectively, for according to the engine
Workload or delivery temperature control the water spray of the water spray unit.
Optionally, the engine includes opposite bottom and top, and the bottom is provided with piston, the water spray outlet
It is set to the top and is located at the center of the combustion chamber.
Optionally, the water spray unit includes：
Low pressure water spray subelement, for providing low pressure water source；
Spray water with high pressure subelement, the output end of the input terminal of the subelement that sprays water with high pressure and low pressure water spray subelement
Connection, the output end of the subelement that sprays water with high pressure are water spray outlet.
Optionally, the low pressure water spray subelement includes：
Water unit, for providing water source；
Low-pressure pump, the water inlet of the low-pressure pump are connect with the feed water inlet of the water unit, the low-pressure pump
Water outlet is connect with the input terminal of the subelement that sprays water with high pressure, and the control terminal and described control unit of the low-pressure pump connect
It connects, the low voltage control instruction for being inputted according to described control unit extracts water source from the water unit, exports the low pressure water
Source.
Optionally, the low pressure water spray subelement further includes filter, and the filter is connect with the low-pressure pump, is used
In the filtering low pressure water source.
Optionally, low pressure water spray subelement further includes automatically controlled throttle valve, the automatically controlled throttle valve respectively with the mistake
Filter is connected with described control unit, the throttle command for being inputted according to described control unit, and the high pressure spray is transported in adjusting
The flow at the low pressure water source of water subelement.
Optionally, the water unit includes：
Water tank is connect, for saving water source with the input terminal of low pressure water spray subelement；
Sensor module is connect with described control unit, for acquiring the water source parameter at water source in the water tank.
Optionally, the water unit further includes：
Engine coolant circulation line is set in the water tank, is used for transmission high-temp water source, and control water source exists
Within the scope of required temperature；
Solenoid valve, including loop head and loop exit, the loop head of the solenoid valve is for inputting the high-temperature water
Source, the loop exit of the solenoid valve are connect with the engine coolant circulation line, and the solenoid valve also with the control
Unit connection processed.
Optionally, the subelement that sprays water with high pressure includes：
Check valve, the entrance of the check valve are connect with the outlet of low pressure water spray subelement；
High-pressure hydraulic pump, the entrance of the high-pressure hydraulic pump are connect with the outlet of the check valve, and the high-pressure hydraulic pump and institute
Control unit connection is stated, the high voltage control that the high-pressure hydraulic pump is used to input according to described control unit instructs, from the low pressure
Subelement of spraying water extracts the low pressure water source, to export the high-pressure water；
Accumulator, the entrance of the accumulator are connect with the outlet of the high-pressure hydraulic pump；
Injector is connect with the outlet of the accumulator.
Optionally, described control unit is used for workload or delivery temperature according to the engine, controls the spray
The water spray of water unit, including：
Described control unit when the workload or delivery temperature for detecting the engine meet default working condition,
Start the water spray unit and is sprayed water by water spray outlet to the combustion chamber；
Described control unit is unsatisfactory for default working condition in the workload or delivery temperature for detecting the engine
When, it controls the water spray unit and does not spray water to the combustion chamber.
The beneficial effect of the embodiment of the present invention is, engine water injection system include engine, water spray unit, acquisition unit and
Control unit, engine include combustion chamber, and water spray unit includes water spray outlet, and the water spray outlet of water spray unit is set to combustion chamber
Interior, acquisition unit is used to acquire the workload or delivery temperature of engine, and control unit is used for negative according to the work of engine
Lotus or delivery temperature control the water spray of water spray unit.Therefore, because water spray outlet is located in combustion chamber, when water spray, water is not easy
Form water droplet, on the one hand, it can be effectively reduced the indoor cylinder temperature of burning, reduce NOx emission, improve fuel economy
Energy or power torque.On the other hand, high compression ratio can be effectively inhibited, the guarantee that small-sized pressurization causes, improves engine
The thermal efficiency.Yet another aspect is not influenced, directly since it belongs to in-cylinder direct-jet water spray by the opening and closing of inlet valve or exhaust valve
Water spray enters in cylinder, and atomizing effect is good, and injecting time can be controlled flexibly.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above-mentioned engine water injection system and other purposes of the invention,
Feature and advantage can be more clearly understood, special below to lift preferred embodiment, and cooperate attached drawing, be described in detail.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention provides a kind of structural schematic diagram of engine water injection system；
Fig. 2 is the structural schematic diagram of engine in Fig. 1；
Fig. 3 is that the embodiment of the present invention provides a kind of structural schematic diagram of low pressure water spray subelement；
Fig. 4 is that the embodiment of the present invention provides a kind of structural schematic diagram of subelement that sprays water with high pressure；
Fig. 5 is that the embodiment of the present invention provides a kind of schematic diagram of the water spray outlet of injector in engine cylinder body.
Specific embodiment
Further to illustrate the present invention to reach the technical means and efficacy that predetermined purpose is taken, below in conjunction with attached drawing
And preferred embodiment, to specific embodiment, structure, feature and its function of engine water injection system proposed according to the present invention
Effect, detailed description is as follows.
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to the preferable implementation of figure
It can be clearly appeared from the detailed description of example.By the explanation of specific embodiment, when predetermined purpose can be reached to the present invention
The technical means and efficacy taken be able to more deeply and it is specific understand, however institute's attached drawing be only to provide reference and description it
With being not intended to limit the present invention.
In addition to the problem of the existing technology that such as background technique is illustrated, in order to more deeply understand the embodiment of the present invention
Purpose, in this, the embodiment of the present invention again elaborates problem of the existing technology：
As previously described, because the air inlet pipe of the engine air inlet tube water injection system apart from combustion chamber farther out, in extremely cold environment
Under, water is easy to freeze at air inlet pipe, is easy to cause a hidden trouble in air inlet pipe, and therefore, water spray quality is less reliable.
Further, when air inlet pipe is sprayed water, can only can implement during IO Intake Valve Opens, therefore, spray operation
Time window is small.
Based on this, the embodiment of the present invention provides a kind of engine water injection system.Also referring to Fig. 1 to Fig. 4, the engine
Water injection system 100 includes：Engine 200, water spray unit 300, acquisition unit 400 and control unit 500.
Engine 200 includes cylinder body 21, combustion chamber 22, piston 23, air intake duct 24, inlet valve 25, spark plug 26, exhaust duct
27 and exhaust valve 28.
Cylinder body 21 includes opposite bottom and top, and piston 23 is set to bottom.Air intake duct 24, inlet valve 25, spark plug
26, exhaust duct 27 and exhaust valve 28 are respectively arranged at top.Combustion chamber 22 is by cylinder body 21, piston 23, air intake duct 24, inlet valve
25, spark plug 26, exhaust duct 27 and exhaust valve 28 surround.
Water spray unit 300 includes water spray outlet 31, and the water spray outlet 31 of water spray unit 300 is set in combustion chamber 21.
Acquisition unit 400 is used to acquire the workload or delivery temperature of engine 200.Acquisition unit 400 can be temperature
The suitable position in engine can be set in degree sensor or knock detector or revolution detector etc., acquisition unit 400.
Control unit 500 is connect with water spray unit 300 and acquisition unit 400 respectively, and control unit 500 is used for basis and starts
The workload or delivery temperature of machine 200 control the water spray of water spray unit 300, for example, control unit 500 is started detecting
When the workload or delivery temperature of machine 200 meet default working condition, starting water spray unit 300 passes through water spray outlet 31 to combustion
Room 22 is burnt to spray water.Alternatively, control unit 500 is unsatisfactory for default work in the workload or delivery temperature for detecting engine 200
When condition condition, control water spray unit 300 is not sprayed water to combustion chamber 22.Therefore, in the case where not meeting default working condition, by combustion
Water spray in room 22 is burnt, can reduce cylinder temperature, pinking is eliminated, so that the high efficience motor of high compression ratio is achieved.Its
In, do not meet the workload that default working condition includes engine and is higher than default workload or delivery temperature higher than pre-
If reference temperature etc., meets the workload that default working condition includes engine and be lower than default workload, or exhaust
Temperature is lower than preset reference temperature etc..
To sum up, since water spray outlet is located in combustion chamber, when water spray, water is not easily formed water droplet, on the one hand, it can have
Effect ground reduces the indoor cylinder temperature that burns, and reduces NOxDischarge improves fuel-economy performance or power torque.On the other hand,
High compression ratio can be effectively inhibited, the guarantee that small-sized pressurization causes, improve engine thermal efficiency.Yet another aspect, due to it
Belong to in-cylinder direct-jet water spray, is not influenced by the opening and closing of inlet valve or exhaust valve, directly water spray enters in cylinder, and atomizing effect is good,
Injecting time can be controlled flexibly.
In some embodiments, water spray outlet 31 is set to top and therefore passes through positioned at the center of combustion chamber 22
The whole spaces in the enough maximumlly covering combustion chambers 22 of the water energy that water spray outlet 31 sprays, so that the efficiency for eliminating pinking mentions significantly
It is high.
In some embodiments, water spray unit 300 includes：Low pressure water spray subelement 32 and the subelement 33 that sprays water with high pressure.
The input terminal of low pressure water spray subelement 32 is used for for inputting low pressure water source, the output end of low pressure water spray subelement 32
Low pressure water source is provided.The output end of input terminal and low pressure water spray subelement 32 of subelement 33 of spraying water with high pressure is connect, and is sprayed water with high pressure
The output end of subelement 33 is water spray outlet 31.
Low pressure water spray subelement 32 extracts water source first, and exports low pressure water source, and the subelement 33 that sprays water with high pressure receives immediately
Low pressure water source, and export high-pressure water and sprayed by water spray outlet 31.In this process, it can be avoided and directly use high pressure spray
The problem of water subelement 33 extracts water from water source and brings system job insecurity, also, it can rapidly eliminate pinking.
In some embodiments, low pressure water spray subelement 32 includes：Water unit 321 and low-pressure pump 322.
Water unit 321 is for providing water source, wherein it is solidifying that the source at the water source can obtain or quote air-conditioning for injection
It bears water and obtains.
The water inlet of low-pressure pump 322 is connect with the feed water inlet of water unit 321, the water outlet and high pressure of low-pressure pump 322
The input terminal connection of water spray subelement 33, the control terminal of low-pressure pump 322 are connect with control unit 500.Low-pressure pump 322 passes through
Its water inlet extracts water source from water unit 321, and exports low pressure water source by its water outlet, and control unit 500 is patrolled according to control
Volume, low voltage control instruction is inputted by the control terminal of low-pressure pump 322, control low-pressure pump 322 extracts water from water unit 321
Source exports low pressure water source, for example, low voltage control instruction is that high level instructs, and starting low-pressure pump 322 is started to work when water spray.
When stopping water spray, low voltage control instruction is that low level instructs, and indication low-voltage water pump 322 stops working.
In some embodiments, low pressure water spray subelement 32 further includes filter 323, filter 323 and low-pressure pump 322
Connection, wherein filter 323 can be between water unit 321 and low-pressure pump 322, alternatively, filter 323 can be located at
The output end of low-pressure pump 322.
Filter 323 is used to filter low pressure water source, and some foreign ions are filtered out, so that follow-up equipment is protected,
Such as engine etc.
In some embodiments, low pressure water spray subelement 32 further includes automatically controlled throttle valve 324, and automatically controlled throttle valve 324 is distinguished
It is connect with filter 323 and control unit 500.Control unit 500 can input throttle command to automatically controlled throttle valve 324, adjust
The flow at the low pressure water source for the subelement 33 that sprays water with high pressure is transported to, and then neatly provides suitable water spray strategy for water spray.
In some embodiments, water unit 321 includes：Water tank 3211 and sensor module 3212.
Water tank 3211 is connect with the input terminal of low pressure water spray subelement 32.Water tank 3211 is provided with liquid injection port 1A and sky
Water transfer mouth 1B, user can inject pure water to water tank 3211 by liquid injection port 1A, alternatively, the condensed water of air-conditioning passes through air-conditioning
Mouth of a river 1B injects water tank, and then, water tank 3211 just saves water source.
Sensor module 3212 is connect with control unit 500, and sensor module 3212 is for acquiring water in water tank 3211
The water source parameter in source.Wherein, which includes water quality, temperature and liquid level, and corresponding, sensor module 3212 includes liquid
Level sensor 2A, temperature sensor 2B and water quality sensor 2C.
In some embodiments, water tank 3211 is additionally provided with overflow valve 1C, when control unit 500 detects level sensing
When the liquid level of the water tank 3211 of device 2A acquisition is higher than default liquid level, control unit 500 just opens overflow valve 1C.
In some embodiments, water unit 321 further includes：Engine coolant circulation line 3213 and solenoid valve 3214.
Engine coolant circulation line 3213 is set in water tank 3211, and engine coolant circulation line 3213 is used
In transmission high-temp water source, water source is controlled within the scope of required temperature, wherein the high-temp water source is defeated by engine cooling and circulating system
Out.
Solenoid valve 3214 includes loop head and loop exit, and the loop head of solenoid valve 3214 is for inputting high-temperature water
The loop exit in source, solenoid valve 3214 is connect with engine coolant circulation line 3213, and solenoid valve 3214 is also single with control
Member 500 connects.
When control unit 500 detects that the water source temperature in water tank 3211 is too low, control unit 500 starts solenoid valve
3214, so that high-temp water source flows through engine coolant circulation line 3213, engine coolant circulation line 3213 passes through heat
Transmitting increases the water temperature in water tank 3211, to improve the functional reliability of the system.
In some embodiments, the subelement 33 that sprays water with high pressure includes：Check valve 331, high-pressure hydraulic pump 332, accumulator 333 and
Injector 334.
The entrance of check valve 331 is connect with the outlet of low pressure water spray subelement 32, the entrance and check valve of high-pressure hydraulic pump 332
331 outlet connection, low pressure water source unidirectionally flows through check valve 331 under the action of high-pressure hydraulic pump 332.
High-pressure hydraulic pump 332 is connect with control unit 500, and high-pressure hydraulic pump 332 is used for the high pressure inputted according to control unit 500
Control instruction extracts low pressure water source from low pressure water spray subelement 32, to export high-pressure water.
The entrance of accumulator 333 is connect with the outlet of high-pressure hydraulic pump 332.Accumulator 333 saves what high-pressure hydraulic pump 332 transmitted
High-pressure water.
Injector 334 is connect with the outlet of accumulator 333.When water spray, accumulator 333 is sprayed into water by injector 334
Into combustion chamber 22.In the present embodiment, the start-up time of injector 334 and operating time are by control unit 500 according to control
Logic determines.
Also referring to Fig. 1 and Fig. 5, the water spray outlet 31 of injector 334 is arranged adjacent to spark plug 26, and is located at inlet valve
Between 25 and exhaust valve 28.It is different from the prior art, at any time can be combustion chamber 22 due to not influenced by the opening and closing of inlet valve 25
Cooling, therefore, real-time is good.
Engine water injection system provided by the present invention is described in detail above, specific case used herein
Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention
Method and its core concept；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiment
And there will be changes in application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of engine water injection system, which is characterized in that including：
Engine, including combustion chamber；
Water spray unit comprising the water spray outlet of water spray outlet, the water spray unit is set in the combustion chamber；
Acquisition unit, for acquiring the workload or delivery temperature of the engine；
Control unit is connect with the water spray unit and the acquisition unit respectively, for the work according to the engine
Load or delivery temperature control the water spray of the water spray unit.
2. system according to claim 1, which is characterized in that the engine includes opposite bottom and top, described
Bottom is provided with piston, and the water spray outlet is set to the top and is located at the center of the combustion chamber.
3. system according to claim 1, which is characterized in that the water spray unit includes：
Low pressure water spray subelement, for providing low pressure water source；
Spray water with high pressure subelement, and the output end of the input terminal of the subelement that sprays water with high pressure and low pressure water spray subelement connects
It connects, the output end of the subelement that sprays water with high pressure is water spray outlet.
4. system according to claim 3, which is characterized in that low pressure water spray subelement includes：
Water unit, for providing water source；
Low-pressure pump, the water inlet of the low-pressure pump are connect with the feed water inlet of the water unit, the water outlet of the low-pressure pump
Mouth is connect with the input terminal of the subelement that sprays water with high pressure, and the control terminal of the low-pressure pump is connect with described control unit, is used
In the low voltage control instruction inputted according to described control unit, water source is extracted from the water unit, exports the low pressure water source.
5. system according to claim 4, which is characterized in that the low pressure water spray subelement further includes filter, described
Filter is connect with the low-pressure pump, for filtering the low pressure water source.
6. system according to claim 4, which is characterized in that the low pressure water spray subelement further includes automatically controlled throttle valve,
The automatically controlled throttle valve is connect with the filter and described control unit respectively, the section for being inputted according to described control unit
Stream instruction adjusts the flow for transporting to the low pressure water source of the subelement that sprays water with high pressure.
7. system according to claim 3, which is characterized in that the water unit includes：
Water tank is connect, for saving water source with the input terminal of low pressure water spray subelement；
Sensor module is connect with described control unit, for acquiring the water source parameter at water source in the water tank.
8. system according to claim 7, which is characterized in that the water unit further includes：
Engine coolant circulation line is set in the water tank, is used for transmission high-temp water source, controls water source required
In temperature range；
Solenoid valve, including loop head and loop exit, the loop head of the solenoid valve is for inputting the high-temp water source, institute
The loop exit for stating solenoid valve is connect with the engine coolant circulation line, and the solenoid valve also with described control unit
Connection.
9. according to the described in any item systems of claim 3 to 8, which is characterized in that the subelement that sprays water with high pressure includes：
Check valve, the entrance of the check valve are connect with the outlet of low pressure water spray subelement；
High-pressure hydraulic pump, the entrance of the high-pressure hydraulic pump are connect with the outlet of the check valve, and the high-pressure hydraulic pump and the control
Unit connection processed, the high voltage control that the high-pressure hydraulic pump is used to be inputted according to described control unit are instructed, are sprayed water from the low pressure
Subelement extracts the low pressure water source, to export the high-pressure water；
Accumulator, the entrance of the accumulator are connect with the outlet of the high-pressure hydraulic pump；
Injector is connect with the outlet of the accumulator.
10. system according to claim 1, which is characterized in that described control unit is used for the work according to the engine
Make load or delivery temperature, controls the water spray of the water spray unit, including：
Described control unit is when the workload or delivery temperature for detecting the engine meet default working condition, starting
The water spray unit is exported to the combustion chamber by the water spray and is sprayed water；
Described control unit is when the workload or delivery temperature for detecting the engine are unsatisfactory for default working condition, control
The water spray unit is made not spray water to the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641583.4A CN108869105A (en) | 2018-06-21 | 2018-06-21 | A kind of engine water injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641583.4A CN108869105A (en) | 2018-06-21 | 2018-06-21 | A kind of engine water injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869105A true CN108869105A (en) | 2018-11-23 |
Family
ID=64340218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810641583.4A Pending CN108869105A (en) | 2018-06-21 | 2018-06-21 | A kind of engine water injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869105A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410236A (en) * | 2019-07-29 | 2019-11-05 | 浙江吉利新能源商用车集团有限公司 | A kind of engine water spray control method and system |
| CN111237095A (en) * | 2020-02-24 | 2020-06-05 | 中国第一汽车股份有限公司 | Water tank temperature control system for water-jet engine and control method thereof |
| CN111502868A (en) * | 2020-04-16 | 2020-08-07 | 北京汽车股份有限公司 | Control method and control device for water injection in engine cylinder and vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131137A (en) * | 2006-08-21 | 2008-02-27 | 梅勇 | High-efficiency water-spraying type engine |
| CN101135280A (en) * | 2007-10-01 | 2008-03-05 | 绵阳新晨动力机械有限公司 | Four-stroke petrol engine inner-vat sprinkler |
| CN102251848A (en) * | 2010-05-18 | 2011-11-23 | 刘振安 | Environment-friendly energy-saving oil-water engine |
| CN106948951A (en) * | 2015-10-23 | 2017-07-14 | 罗伯特·博世有限公司 | For diagnosing the method and apparatus in the combustion chamber for ejecting water to explosive motor |
| CN107795396A (en) * | 2016-09-07 | 2018-03-13 | 福特环球技术公司 | Method and system for engine water injection |
| CN107905880A (en) * | 2017-10-13 | 2018-04-13 | 义乌吉利发动机有限公司 | A kind of engine with water injection system |
| CN107905918A (en) * | 2017-09-07 | 2018-04-13 | 同济大学 | The gasoline engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder |
| CN107905917A (en) * | 2017-09-07 | 2018-04-13 | 同济大学 | The natural gas engine structure of the double injections of cold water mix inside and outside a kind of cylinder |
| CN107989718A (en) * | 2017-09-07 | 2018-05-04 | 同济大学 | The engine block of the double injections of cold water mix inside and outside a kind of cylinder |
-
2018
- 2018-06-21 CN CN201810641583.4A patent/CN108869105A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131137A (en) * | 2006-08-21 | 2008-02-27 | 梅勇 | High-efficiency water-spraying type engine |
| CN101135280A (en) * | 2007-10-01 | 2008-03-05 | 绵阳新晨动力机械有限公司 | Four-stroke petrol engine inner-vat sprinkler |
| CN102251848A (en) * | 2010-05-18 | 2011-11-23 | 刘振安 | Environment-friendly energy-saving oil-water engine |
| CN106948951A (en) * | 2015-10-23 | 2017-07-14 | 罗伯特·博世有限公司 | For diagnosing the method and apparatus in the combustion chamber for ejecting water to explosive motor |
| CN107795396A (en) * | 2016-09-07 | 2018-03-13 | 福特环球技术公司 | Method and system for engine water injection |
| CN107905918A (en) * | 2017-09-07 | 2018-04-13 | 同济大学 | The gasoline engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder |
| CN107905917A (en) * | 2017-09-07 | 2018-04-13 | 同济大学 | The natural gas engine structure of the double injections of cold water mix inside and outside a kind of cylinder |
| CN107989718A (en) * | 2017-09-07 | 2018-05-04 | 同济大学 | The engine block of the double injections of cold water mix inside and outside a kind of cylinder |
| CN107905880A (en) * | 2017-10-13 | 2018-04-13 | 义乌吉利发动机有限公司 | A kind of engine with water injection system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410236A (en) * | 2019-07-29 | 2019-11-05 | 浙江吉利新能源商用车集团有限公司 | A kind of engine water spray control method and system |
| CN111237095A (en) * | 2020-02-24 | 2020-06-05 | 中国第一汽车股份有限公司 | Water tank temperature control system for water-jet engine and control method thereof |
| CN111237095B (en) * | 2020-02-24 | 2021-07-20 | 中国第一汽车股份有限公司 | Water tank temperature control system for water-jet engine and control method thereof |
| WO2021169968A1 (en) * | 2020-02-24 | 2021-09-02 | 中国第一汽车股份有限公司 | Water tank temperature control system and method for water injection engine |
| CN111502868A (en) * | 2020-04-16 | 2020-08-07 | 北京汽车股份有限公司 | Control method and control device for water injection in engine cylinder and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107218157B (en) | Recycle the engine water injection system and engine of EGR condensed water | |
| CN108869105A (en) | A kind of engine water injection system | |
| CN105673199B (en) | The control method of the oxygen-enriched petrol engine burning of air inlet hydrogen loading with EGR | |
| CN106762237A (en) | A kind of engine | |
| CN101135280A (en) | Four-stroke petrol engine inner-vat sprinkler | |
| CN102269081A (en) | Air intake tube water spray system of engine | |
| EP1205659B1 (en) | Method of reducing nitrogen oxide (NOX) emissions of super-charged piston engine | |
| CN108087157A (en) | A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function | |
| CN112112729B (en) | Variable air inlet tumble flow device of direct injection engine in dual-fuel cylinder | |
| CN108700009B (en) | The control method and control device of direct-injection internal combustion engine | |
| CN108843446A (en) | Petrol engine method for controlling combustion and petrol engine suitable for medium and heavy vehicle | |
| CN203499862U (en) | Device for mixing brown gas into diesel engine | |
| CN108049987A (en) | The natural gas engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder | |
| CN107989718A (en) | The engine block of the double injections of cold water mix inside and outside a kind of cylinder | |
| CN107905917A (en) | The natural gas engine structure of the double injections of cold water mix inside and outside a kind of cylinder | |
| CN102562392B (en) | Diesel and dimethyl ether online mixing oil supply system | |
| CN107905880B (en) | Engine with water injection system | |
| CN107905918A (en) | The gasoline engine structure of the double injections of hot water mixing in a kind of outer cold water tank of cylinder | |
| CN209604165U (en) | A kind of energy-saving and emission-reduction diesel emulsion additive feedway | |
| CN209671120U (en) | The composite injection system of engine | |
| CN208845276U (en) | A kind of variable injection rate diesel injection system used for diesel engine | |
| CN207905952U (en) | A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function | |
| CN208564747U (en) | Petrol engine suitable for medium and heavy vehicle | |
| CN208845275U (en) | The double common rail hydraulic injection devices of use for diesel engine can be changed injection rate spraying system | |
| CN207513705U (en) | A kind of EGR integrates emission-reducing device with water vapour |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |