CN106523195B - A kind of high-temperature sprinkler for engine in-cylinder water injection - Google Patents
A kind of high-temperature sprinkler for engine in-cylinder water injection Download PDFInfo
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- CN106523195B CN106523195B CN201611181024.7A CN201611181024A CN106523195B CN 106523195 B CN106523195 B CN 106523195B CN 201611181024 A CN201611181024 A CN 201611181024A CN 106523195 B CN106523195 B CN 106523195B
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- water
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of high-temperature sprinklers for engine in-cylinder water injection, including water jet ontology, water jet ontology is equipped with admitting pipe joint, water inlet pipe, pressure chamber, returning pipe joint, pressure regulating screw, pressure spring, mandril and needle-valve, gap between mandril, pressure spring and pressure regulating screw and water jet ontology forms backwater channel, cooling water ingress pipe is equipped in water jet ontology, cooling water ingress pipe is connected to backwater channel, cooling water ingress pipe is passed through cooling water, flows through backwater channel and enters return pipe through returning pipe joint together with high-temperature tempering.Compared with prior art, the present invention is carried out internal cooling using cooling water ingress pipe, directly cooling mandril, return water temperature is reduced, cooling efficiency is high, and mandril temperature distortion is avoided to cause needle-valve clamping stagnation that water jet is caused to can not work normally, structure is simple, without additionally increasing cooling circuit, the reliability of high-temperature sprinkler is improved, realizes high-temperature sprinkler long-term stable work.
Description
Technical field
The present invention relates to water-jet technologies in engine cylinder, spray more particularly, to a kind of high temperature for engine in-cylinder water injection
Hydrophone.
Background technique
Auto industry is fast-developing, brings huge convenience to human society.Automobile offers convenience to human society
While also bring the series of negative such as the energy, environmental pollution influence.Each state has all formulated stringent discharge and oil consumption thus
Standard, energy-saving and emission-reduction are the primary goals of the internal combustion engine industry as automobile main power source.To reduce IC engine oil consumption, reduce
The consumption of fossil energy, various countries engineer, scholar and internal combustion engine industry practitioner make very big effort.
Engine Downsizing technology can increase the use load that engine often uses operating condition, and engine is often used to operating condition load
It is mobile to high efficiency loading zone, pumping loss is reduced, engine fuel economy is improved.Supercharging technology makes up since engine is arranged
Dynamic property caused by amount reduces declines, and small-sized high blower engine can effectively improve engine efficiency.But pinking is small displacement
High blower engine main restricting factor.Since compression temperature is very high in small displacement high blower engine cylinder, easily generation pinking
Even to the serious super detonation of engine damage, in order to reduce pinking trend, it has to take some measures, such as: postponing
The methods of ignition advance angle, reduction compression ratio, which has limited the potentiality of small-sized high blower engine fuel-economizing.
In this context, water-jet technology in engine cylinder is produced.Water can reduce hair in engine cylinder interior suction thermal evaporation
Motivation cylinder temperature effectively inhibits the generation of pinking.Simultaneously because water spray reduces pinking tendency, engine compresses can be increased
Engine efficiency is improved than, advanced ignition advance angle.Many research institutions and company, such as: Aachen University, Germany, advanced section, South Korea
Skill institute, Osaka, Japan university, Bayerische Motorne Werke Aktiengeellschaft, Modern Corporation, Toyota Company etc. have all carried out engine in-cylinder water injection and have inhibited quick-fried
Shake, the research for improving engine efficiency, some research institutions have been carried out the research of vapor ancillary technique, i.e., have been absorbed heat using liquid water
The steam of formation optimizes internal combustion engine working process, improves system thermal efficiency, makees Waste Heat Recovery working medium with water, absorbs tail gas waste heat,
Then to the high-temperature high pressure water of engine in-cylinder direct-jet tail gas heating, water vaporized expanding in cylinder does work, and increases amount of work, improves
Engine efficiency.
The high temperature coolant-temperature gage of high-temperature sprinkler injection can be up to 200 DEG C of even higher, this part high-temperature tempering heating needle-valves
Couple and mandril make pintle nozzle match-ing parts and mandril bear great thermic load, using the needle-valve of high speed steel making and using impact resistance
High duty alloy steel making needle-valve body thermal stability ratio it is good many using mandril made of common stainless steel material, it is even with needle-valve
Part is compared, and the material thermal stability of mandril is poor, and being easy to be heated is deformed, and leads to needle-valve clamping stagnation, water jet can not normal work
Make.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems and provide it is a kind of be capable of long-term stable work for sending out
The high-temperature sprinkler of motivation in-cylinder water injection.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high-temperature sprinkler for engine in-cylinder water injection, including water jet ontology, water jet ontology are equipped with water inlet
Pipe fitting, water inlet pipe, pressure chamber, returning pipe joint, pressure regulating screw, pressure spring, mandril and needle-valve, the water inlet pipe pass through into
Water pipe head is passed through pressure chamber, and the needle-valve lower end is equipped with spray orifice, and needle-valve upper end is sequentially connected mandril, pressure spring, pressure regulation
Screw and returning pipe joint, the gap between the mandril, pressure spring and pressure regulating screw and water jet ontology are formed back
Aquaporin, the returning pipe joint connect return pipe, are equipped with cooling water ingress pipe in the water jet ontology, described is cold
But water ingress pipe is connected to backwater channel, and cooling water ingress pipe is passed through cooling water, flows through backwater channel and pass through back together with high-temperature tempering
Water pipe head enters return pipe.
The cooling water ingress pipe is connected to the bottom of backwater channel, the gap of water jet ontology with mandril and around it
Connection.
The cooling water ingress pipe input terminal connects high-pressure hydraulic pump, controls cooling water flow by changing cooling water pressure
Amount adjusts intensity of cooling.
The backwater channel is equipped with the thermocouple of monitoring return water temperature, passes through thermocouple monitoring return water temperature.
The high-pressure hydraulic pump and thermocouple connect control unit, and the thermocouple inputs the return water temperature measured
Control unit, control unit output signal to high-pressure hydraulic pump, control the pressure of high-pressure hydraulic pump, and then adjust cooling water flow, real
The feedback control of existing intensity of cooling.
Present invention has an advantage that cooling water to be imported to the gap of mandril and water jet ontology using cooling water ingress pipe
It is interior, internal cooling is carried out, mandril, returning pipe joint inflow return pipe are flowed through together with high-temperature tempering, on the way directly cooling mandril,
Return water temperature is reduced, cooling efficiency is high, and mandril temperature distortion is avoided to cause needle-valve clamping stagnation that water jet is caused to can not work normally.This
Water jet backwater channel is directly utilized as cooling circuit in invention, and structure is simple, increases cooling circuit, cooling water without additional
Ingress pipe input terminal connects high-pressure hydraulic pump, changes intensity of cooling by adjusting cooling water pressure change cooling water flow, returns
Thermocouple monitoring return water temperature is arranged in aquaporin, convenient for control.The present invention improves the reliability of high-temperature sprinkler, realizes high temperature
Water jet long-term stable work.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure: 1- admitting pipe joint；2- water inlet pipe；The pressure chamber 3-；4- spray orifice；5- needle-valve；6- positioning pin；7- mandril；8-
Cooling water ingress pipe；9- pressure spring；10- water jet ontology；11- pressure regulating screw；12- returning pipe joint.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of high-temperature sprinkler for engine in-cylinder water injection, as shown in Figure 1, including returning pipe joint 12, pressure regulation spiral shell
Nail 11, pressure spring 9, mandril 7, water jet ontology 10, needle-valve 5, positioning pin 6, admitting pipe joint 1, water inlet pipe 2, cooling water are led
Enter pipe 8, high-temperature high pressure water flows into water inlet pipe 2 through admitting pipe joint 1, and into pressure chamber 3, hydraulic pressure acts on the pressure-bearing cone of needle-valve 5
On face, upward thrust is generated, the adjustable pretightning force of screw 11 is adjusted, has controlled and sprayed power, when this thrust is more than pressure regulation bullet
When the pretightning force of spring 9, needle-valve rises and opens spray orifice 4, and high-temperature water is sprayed from spray orifice 4.Cooling water ingress pipe 8 passes through water jet
Ontology 10 accesses the gap of mandril and water jet ontology, the i.e. bottom of backwater channel.
When water jet does not work, a small amount of high-temperature water is leaked out from the gap of needle-valve and needle-valve body matching surface, along mandril week
The gap enclosed rises, and enters return pipe finally by returning pipe joint 12；When water jet works, through pintle nozzle match-ing parts gap and mandril
The water that surrounding gap enters return pipe increases, and under the thermic load of high-temperature tempering, mandril 7 easily generates deformation dieback needle-valve 5
Lead to water jet clamping stagnation.The cooling water imported around mandril 7 with oil injector body gap through cooling water ingress pipe 8 flows through top with return water
7 peripheral clearance of bar, returning pipe joint 12 enter return pipe, cool down mandril 7 on the way, reduce return water temperature.Cooling water ingress pipe 8 is defeated
Enter end connection high-pressure hydraulic pump, controls cooling water flow by changing cooling water pressure, adjust intensity of cooling, backwater channel is equipped with
The thermocouple for monitoring return water temperature, passes through thermocouple monitoring return water temperature.High-pressure hydraulic pump and thermocouple connect control unit, heat
The return water temperature input control unit that galvanic couple will measure, control unit output signal to high-pressure hydraulic pump, control the pressure of high-pressure hydraulic pump
Power, and then cooling water flow is adjusted, realize the feedback control of intensity of cooling.
Claims (4)
1. a kind of high-temperature sprinkler for engine in-cylinder water injection, including water jet ontology (10), water jet ontology (10) are set
Have admitting pipe joint (1), water inlet pipe (2), pressure chamber (3), returning pipe joint (12), pressure regulating screw (11), pressure spring (9),
Mandril (7) and needle-valve (5), the water inlet pipe (2) are passed through pressure chamber (3) through admitting pipe joint (1), under the needle-valve (5)
End is equipped with spray orifice (4), and needle-valve (5) upper end is sequentially connected mandril (7), pressure spring (9), pressure regulating screw (11) and return pipe and connects
Head (12), the gap between the mandril (7), pressure spring (9) and pressure regulating screw (11) and water jet ontology (10) is formed
Backwater channel, the returning pipe joint (12) connect return pipe,
It is characterized in that, being equipped with cooling water ingress pipe (8) in the water jet ontology, the cooling water ingress pipe (8) is even
Logical backwater channel, cooling water ingress pipe (8) are passed through cooling water, flow through backwater channel together with high-temperature tempering through returning pipe joint
(12) enter return pipe, the cooling water ingress pipe (8) is connected to the bottom of backwater channel, and sprays around mandril (7) and its
The gap of hydrophone ontology (10) connects.
2. a kind of high-temperature sprinkler for engine in-cylinder water injection according to claim 1, which is characterized in that described
Cooling water ingress pipe (8) input terminal connects high-pressure hydraulic pump.
3. a kind of high-temperature sprinkler for engine in-cylinder water injection according to claim 2, which is characterized in that described
Backwater channel is equipped with the thermocouple of monitoring return water temperature.
4. a kind of high-temperature sprinkler for engine in-cylinder water injection according to claim 3, which is characterized in that described
High-pressure hydraulic pump and thermocouple connect control unit, the return water temperature input control unit that the thermocouple will measure, control
Element output signal controls the pressure of high-pressure hydraulic pump to high-pressure hydraulic pump, and then adjusts cooling water flow, realizes the anti-of intensity of cooling
Feedback control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181024.7A CN106523195B (en) | 2016-12-20 | 2016-12-20 | A kind of high-temperature sprinkler for engine in-cylinder water injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181024.7A CN106523195B (en) | 2016-12-20 | 2016-12-20 | A kind of high-temperature sprinkler for engine in-cylinder water injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523195A CN106523195A (en) | 2017-03-22 |
| CN106523195B true CN106523195B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611181024.7A Active CN106523195B (en) | 2016-12-20 | 2016-12-20 | A kind of high-temperature sprinkler for engine in-cylinder water injection |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1100417A1 (en) * | 1983-01-14 | 1984-06-30 | Павлодарский Индустриальный Институт | Diesel engine nozzle |
| CN2473347Y (en) * | 2001-01-12 | 2002-01-23 | 重庆红江机械厂 | Cooling type oil jet for diesel engine |
| CN2937532Y (en) * | 2006-07-06 | 2007-08-22 | 山东鑫亚工业股份有限公司 | Fuel injector assembly |
| CN104373268A (en) * | 2014-11-27 | 2015-02-25 | 南岳电控(衡阳)工业技术有限公司 | Heavy machine oil sprayer device with circulating cooling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028020A (en) * | 2002-06-27 | 2004-01-29 | Bosch Automotive Systems Corp | Fuel injection valve |
-
2016
- 2016-12-20 CN CN201611181024.7A patent/CN106523195B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1100417A1 (en) * | 1983-01-14 | 1984-06-30 | Павлодарский Индустриальный Институт | Diesel engine nozzle |
| CN2473347Y (en) * | 2001-01-12 | 2002-01-23 | 重庆红江机械厂 | Cooling type oil jet for diesel engine |
| CN2937532Y (en) * | 2006-07-06 | 2007-08-22 | 山东鑫亚工业股份有限公司 | Fuel injector assembly |
| CN104373268A (en) * | 2014-11-27 | 2015-02-25 | 南岳电控(衡阳)工业技术有限公司 | Heavy machine oil sprayer device with circulating cooling |
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| Publication number | Publication date |
|---|---|
| CN106523195A (en) | 2017-03-22 |
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