CN102182599A - Dimethyl ether engine fuel supply system and fuel injector thereof - Google Patents
Dimethyl ether engine fuel supply system and fuel injector thereof Download PDFInfo
- Publication number
- CN102182599A CN102182599A CN 201110078794 CN201110078794A CN102182599A CN 102182599 A CN102182599 A CN 102182599A CN 201110078794 CN201110078794 CN 201110078794 CN 201110078794 A CN201110078794 A CN 201110078794A CN 102182599 A CN102182599 A CN 102182599A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- dimethyl ether
- needle
- nozzle
- 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
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000000446 fuel Substances 0.000 title abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 161
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- 239000000295 fuel oil Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 239000007921 spray Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a dimethyl ether fuel injector. The dimethyl ether fuel injector comprises a needle valve body and a needle valve, wherein the needle valve body is provided with a fuel inlet channel communicated with a valve cavity of the needle valve body; a pressure regulation spring is arranged in the valve cavity of the needle valve body; a fuel nozzle is arranged on the head of the needle valve body; the fuel nozzle is provided with a fuel injection hole which is opened or closed by moving from the needle valve along the axial direction of the valve cavity; the surface, contacted with the inner cavity of the fuel nozzle, of the head of the needle valve is provided with an anti-abrasion coating layer. In the fuel injector, the anti-abrasion coating layer bears friction caused by a relevant reciprocating motion between the needle valve and the fuel nozzle, so that abrasion between the fuel nozzle of the oil injector and the needle valve can be reduced effectively, and the service life of the fuel injector is prolonged. The invention also provides a dimethyl ether engine fuel supply system comprising the fuel injector.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of dimethyl ether oil sprayer.The invention still further relates to a kind of dimethyl ether engine fuel oil supply system that comprises above-mentioned dimethyl ether oil sprayer.
Background technique
Dimethyl ether has the advantages that boiling point is low, the volume calorific value is low and viscosity is low, compression ignition combustion under high compression ratio, has the thermal efficiency with the diesel engine equivalence, do not contain the C-C key in the dimethyl ether molecular formula simultaneously, can realize smokeless combustion, therefore, dimethyl ether can be realized clean burning as the fuel of compression ignition engine, is a kind of green energy resource of excellence.
The dimethyl ether engine fuel oil supply system is made up of the parts such as fuel pot, suction booster, high-pressure service pump and oil sprayer that store dimethyl ether fuel usually.During work, suction booster obtains dimethyl ether fuel from fuel pot, is pressed into after the pressurization in suction booster and the pipeline that high-pressure service pump is communicated with, enters high-pressure service pump then, high-pressure service pump is again with the dimethyl ether fuel feeding oil sprayer, and oil sprayer sprays into dimethyl ether in the cylinder body of motor and burns with air mixing.
Oil sprayer has oil nozzle, the inner chamber of oil sprayer has oil duct, needle-valve and pressure adjusting spring, needle-valve is blocked the spray orifice of oil nozzle under the elastic force effect of pressure adjusting spring, when dimethyl ether after the oil sprayer oil duct enters inner chamber, can set up higher oil pressure at the oil sprayer inner chamber, high pressure oil acts on the annular table terrace at needle-valve middle part, after active force surpasses the pretightening force (being the cracking pressure of needle-valve) of needle-valve, needle-valve can overcome the pressure adjusting spring pretightening force and lift off a seat, certainly, also can adopt automatically controlled mode that needle-valve is lifted off a seat, at this moment, dimethyl ether can enter in the spray orifice, thereby enters combustion chambers burn; Along with the end of fuel feeding process, the pressure in the oil sprayer oil duct reduces gradually, and under the reset response of pressure adjusting spring pretightening force, needle-valve drops back into one's seat, and blocks spray orifice, and then injection process finishes.
Yet, diesel engine is meeting emergent power decline problem behind dimethyl ether fuel, the oil spout frequency of oil sprayer is relevant with engine speed, then the oil spout frequency of oil sprayer is higher, then as shown in the above, needle-valve needs high frequency ground to contact with the oil nozzle head and separates, because the viscosity of dimethyl ether is very low, therefore, the wearing and tearing of needle-valve and oil nozzle head are comparatively serious, and because dimethyl ether does not have the C-C key, Pintsch process does not produce the graphite-like buffering, the anti-attrition material, then the wear problem of needle-valve and oil nozzle head is even more serious, even in dimethyl ether, add lubricating additive, the wear problem of oil-fuel injector needle-valve and oil nozzle head still can appear, and cause oil sprayer poorly sealed further, fuel leak, engine power descends.
Therefore, how reducing the wearing and tearing of needle-valve and oil nozzle head in the oil sprayer, avoid the power of poorly sealed, fuel leak, raising motor, is those skilled in the art's technical issues that need to address.
Summary of the invention
An object of the present invention is to provide a kind of dimethyl ether oil sprayer, the needle-valve of this oil sprayer and the surface of contact of oil nozzle have wear resistant coating, can reduce wearing and tearing, increase the working life of oil sprayer, and avoided poorly sealed, fuel leak, improved the power of motor.Another object of the present invention provides a kind of dimethyl ether engine fuel oil supply system that comprises above-mentioned dimethyl ether oil sprayer.
For reaching first purpose of the present invention, the invention provides a kind of dimethyl ether oil sprayer, comprise needle-valve body and needle-valve, described needle-valve body has the oil-feed oil duct that is communicated with its valve pocket, the valve pocket of described needle-valve body has pressure adjusting spring, the head of described needle-valve body has oil nozzle, and described oil nozzle has by described needle-valve and moves axially the nozzle opening that opens and closes with control along valve pocket, and the surface of contact of described needle-valve head and described oil nozzle inner chamber has wear resistant coating.
Preferably, described oil nozzle has the round platform hole, and the miner diameter end in described round platform hole is a valve port, and described valve port is communicated with described nozzle opening and described oil-feed oil duct; Described needle-valve head comprises and joining successively and first conical surface section, the second round platform section of tapering convergent and the 3rd round platform section that is connected with the valve rod of described needle-valve; Described second round platform section and the sealing of described round platform hole are adaptive, and the wear resistant coating of described needle-valve is located on the described second round platform section.
Preferably, described oil nozzle has the round platform hole, and the miner diameter end in described round platform hole is a valve port, and described valve port is communicated with described nozzle opening and described oil-feed oil duct; Described needle-valve head has and described round platform hole sealing suitable cone section.
Preferably, the ratio of the head outer diameter of described oil nozzle and head internal diameter is more than or equal to 2.5, and is less than or equal to 3.3.
Preferably, compare more than or equal to 0.36 in the aperture of described nozzle opening, and be less than or equal to 0.42.
Preferably, the preset pressure of described pressure adjusting spring is less than or equal to 18MPa, and more than or equal to 16MPa.
At oil nozzle and needle-valve surface of contact place wear resistant coating is set in this oil sprayer, in the high frequency alternation procedure of the opening and closing of nozzle opening, bear the friction that does relatively reciprocating motion and brought between needle-valve and the oil nozzle by wear resistant coating always, thereby can reduce the oil nozzle of oil sprayer and the wearing and tearing between the needle-valve effectively, prolong the working life of oil sprayer; In addition, the thinner thickness of wear resistant coating, can fit preferably the head surface of contact of needle-valve or the surface of contact of oil nozzle when not influencing the two cooperation accuracy, can also further improve the reliability that needle-valve is closed nozzle opening.
For reaching another object of the present invention, the present invention also provides a kind of dimethyl ether engine fuel oil supply system, comprises the dimethyl ether Injection Pump and is attached thereto the dimethyl ether oil sprayer that connects, and described dimethyl ether oil sprayer is above-mentioned each described dimethyl ether oil sprayer.
Because above-mentioned dimethyl ether oil sprayer has above-mentioned technique effect, the dimethyl ether engine fuel oil supply system with this dimethyl ether oil sprayer also has constructed effect.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of dimethyl ether oil sprayer provided by the present invention;
Fig. 2 is the structural representation that the needle-valve head cooperates with oil nozzle in the dimethyl ether oil sprayer shown in Figure 1;
Fig. 3 is the structural representation of needle-valve head among Fig. 2;
Fig. 4 is the structural representation of oil nozzle among Fig. 2;
Fig. 5 is the structural representation that the needle-valve head cooperates with oil nozzle in the another kind of embodiment of dimethyl ether oil sprayer provided by the present invention;
Fig. 6 is the structural representation of needle-valve head among Fig. 5;
Fig. 7 is the structural representation of oil nozzle among Fig. 5.
Embodiment
A core of the present invention provides a kind of dimethyl ether oil sprayer, the needle-valve of this oil sprayer and the surface of contact of oil nozzle have wear resistant coating, can reduce wearing and tearing, increase the working life of oil sprayer, and avoided poorly sealed, fuel losses, improved the power of motor.Another core of the present invention provides a kind of dimethyl ether engine fuel oil supply system that comprises above-mentioned dimethyl ether oil sprayer.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of dimethyl ether oil sprayer provided by the present invention; Fig. 2 is the structural representation that the needle-valve head cooperates with oil nozzle in the oil sprayer shown in Figure 1; Fig. 3 is the structural representation of needle-valve head among Fig. 2; Fig. 4 is the structural representation of oil nozzle among Fig. 2.
Dimethyl ether oil sprayer provided by the present invention, comprise needle-valve body 1 and needle-valve 2, needle-valve 2 can move axially along the valve pocket of needle-valve body 1, the head of needle-valve body 1 has oil nozzle 5, offer oil-feed oil duct 4 on the needle-valve body 1, be provided with pressure adjusting spring 3 in the valve pocket of needle-valve body 1, have nozzle opening 51 that runs through its wall body and the valve port that is communicated with nozzle opening 51 and oil-feed oil duct 4 on the oil nozzle 5; Needle-valve 2 is between oil nozzle 5 and pressure adjusting spring 3, needle-valve 2 can be connected with an end of pressure adjusting spring 3 by spring seat 221 as shown in Figure 1, between the other end of pressure adjusting spring 3 and the valve pocket inwall pressure regulation pad 7 can be set, needle-valve 2 props up the valve port of oil nozzle 5 heads under pressure adjusting spring 3 preset pressure effects, nozzle opening 51 and oil-feed oil duct 4 are disconnected, as shown in Figure 1, enter the valve pocket of fuel injector needle valve body 1 from oil-feed oil duct 4 from the high pressure oil of Injection Pump, in valve pocket, set up high pressure, the middle part of needle-valve 2 can be provided with the annular table terrace of headward oil nozzle 5, after oil pressure rises to certain numerical value, oil pressure can overcome the preset pressure of pressure adjusting spring 3 and push needle-valve 2 to pressure adjusting spring 3, and to open valve port, then nozzle opening 51 is communicated with oil-feed oil duct 4, high pressure oil can enter the firing chamber of motor from nozzle opening 51 ejections; After one time fuel feeding finished, the oil pressure of oil sprayer inner chamber reduced gradually, and needle-valve 2 is blocked the valve port of oil nozzle 5 once more under the reset response of pressure adjusting spring 3, and nozzle opening 51 disconnects once more with oil-feed oil duct 4, stops oil spout.In order to guarantee the cracking pressure of valve port, can also on needle-valve body 1, be provided with and leak hydraulic fluid port 6.
In this oil sprayer, be provided with wear resistant coating at the head of needle-valve 2 and the surface of contact of oil nozzle 5 inner chambers.When needle-valve 2 is blocked the valve port of oil nozzle 5, needle-valve head 21 must contact with oil nozzle 5 inner chambers, different according to needle-valve head 21 with the matching structure at valve port place, needle-valve head 21 is also different with the area of contact size and the shape of oil nozzle 5, and in needle-valve 2 dynamic moving process, surface of contact also can produce dynamic change, and surface of contact described here should be as the criterion with the maximum contact face of the two.Can be only needle-valve wear resistant coating 215 be set at the surface of contact of needle-valve head 21, or only oil nozzle wear resistant coating 53 is set at the surface of contact of oil nozzle 5 inner chambers, obviously, in order to obtain best wear-resisting effect, preferred scheme is for all being provided with wear resistant coating on the surface of contact of the two.Wear resistant coating is a kind of anti-stick coating with rub resistance power, and the thinner thickness of wear resistant coating can be equipped with suitable abrasion-resistant coating material according to the material property of oil nozzle 5 and needle-valve 2, so that obtain best wear-resisting effect; On technology, realize easily, can adopt the sticking technology that is coated with of plasma spray technology or chemistry that wear resistant coating is plated on oil nozzle 5 as base material or/and on the surface of contact of needle-valve head 21, all can obtain good abrasion resistance, under plasma spray technology, can obtain the thinner wear resistant coating of thickness.
By the working principle of above-mentioned oil sprayer as can be known, needle-valve 2 is in close port, and when disconnecting nozzle opening 51 with oil-feed oil duct 4, the head of needle-valve 2 contacts with the valve port place of oil nozzle 5 formation; When needle-valve 2 leaves valve port unlatching nozzle opening 51, the head of needle-valve 2 does not contact with the valve port place of oil nozzle 5, after in the oil sprayer that this invention provides wear resistant coating being set, in the high frequency alternation procedure of the opening and closing of nozzle opening 51, bear the friction that does relatively reciprocating motion and brought between needle-valve 2 and the oil nozzle 5 by wear resistant coating always, thereby can reduce the oil nozzle 5 of oil sprayer and the wearing and tearing between the needle-valve 2 effectively, prolong the working life of oil sprayer; In addition, the thinner thickness of wear resistant coating, can fit preferably the head surface of contact of needle-valve 2 or the surface of contact of oil nozzle 5 when not influencing the two cooperation accuracy, can also further improve the reliability that needle-valve 2 is closed nozzle opening 51.
Please refer to Fig. 5, Fig. 5 is the structural representation that the needle-valve head cooperates with oil nozzle in the another kind of embodiment of dimethyl ether oil sprayer provided by the present invention; Fig. 6 is the structural representation of needle-valve head among Fig. 5; Fig. 7 is the structural representation of oil nozzle among Fig. 5.
In this embodiment, needle-valve head 21 has and round platform hole suitable cone section 214.When then needle-valve 2 was taken a seat, conical surface section 214 entered in the cone shape hole, blocks valve port, and conical surface segment structure has leading role preferably, can guarantee precision and reliability that needle-valve 2 cooperates with oil nozzle 5.
Further, can make the head outer diameter of oil nozzle 5 and the ratio of head internal diameter between 2.5～3.3, (comprise 2.5 and 3.3), as Fig. 4 and shown in Figure 7, the head periphery of oil nozzle 5 and inner chamber thereof all roughly are hemisphere, and head outer diameter and head internal diameter are respectively the radius of the spherical periphery of its head and the radius of spherical inner chamber.This ratio range can guarantee to enter the pressure of dimethyl ether fuel in oil nozzle 5 head cavities, guarantees that simultaneously oil nozzle 5 head thickness and this pressure adapt.In fact, this ratio range relative to existing technologies, also increased the wall thickness of oil nozzle 5, improved the intensity of oil nozzle 5, owing to can not produce graphite-like buffering, anti-attrition material during the dimethyl ether Pintsch process, the dimethyl ether oil sprayer is its impact force and big than diesel engine to the shearing force of metal when taking a seat, and increases its intensity, can improve the working life of oil sprayer.
The aperture that can also make nozzle opening 51 in the oil nozzle 5 is than (comprise 0.36 and 0.42) between 0.36～0.42.The aperture of nozzle opening 51 is than being the radial dimension of nozzle opening 51 and the ratio of axial dimension, and in fact, nozzle opening 51 axial dimension sizes are essentially the wall thickness of oil nozzle 5, and as Fig. 4 and shown in Figure 7, the axis of nozzle opening 51 radially extends along oil nozzle 5 heads.This ratio range can be determined the structural relation between nozzle opening 51 radiuses and oil nozzle 5 wall thickness.Under the situation that oil nozzle 5 wall thickness are determined, when determining that the aperture ratio is between 0.36～0.42, within the limit of power of oil nozzle 5 bearing strengths, make the diameter of nozzle opening 51 reach maximum, oil spout efficient reaches the highest, thereby guarantees engine power performance.
The preset pressure of pressure adjusting spring 3 can be adjusted to 16MPa～18MPa (comprising 16 and 18).Reduce the preset pressure of pressure adjusting spring 3, promptly can obtain less jet pressure, the boiling point of dimethyl ether has only about-24.9 ℃, adopt less jet pressure can obtain good atomizing effect, therefore, can suitably reduce the cracking pressure of oil-fuel injector needle-valve 2 so that reduce the contact stress of needle-valve 2 and oil nozzle 5 heads, improve reliability and flexibility.
Except above-mentioned dimethyl ether oil sprayer, the present invention also provides a kind of dimethyl ether engine fuel oil supply system, comprise the dimethyl ether Injection Pump and be attached thereto the dimethyl ether oil sprayer that connects, the dimethyl ether Injection Pump obtains dimethyl ether in the dimethyl ether fuel jar, and will be delivered in the dimethyl ether oil sprayer after its pressurization, the dimethyl ether oil sprayer is the described dimethyl ether oil sprayer of above-mentioned arbitrary embodiment, because above-mentioned oil sprayer has above-mentioned technique effect, dimethyl ether engine fuel oil supply system with this oil sprayer also has identical technique effect, does not give unnecessary details at this.
More than a kind of dimethyl ether engine fuel oil supply system provided by the present invention and oil sprayer thereof are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (7)
1. dimethyl ether oil sprayer, comprise needle-valve body (1) and needle-valve (2), described needle-valve body (1) has the oil-feed oil duct (4) that is communicated with its valve pocket, the valve pocket of described needle-valve body (1) has pressure adjusting spring (3), the head of described needle-valve body (1) has oil nozzle (5), described oil nozzle (5) has by described needle-valve (2) and moves axially the nozzle opening (51) that opens and closes with control along valve pocket, it is characterized in that the surface of contact of described needle-valve head (21) and described oil nozzle (5) inner chamber has wear resistant coating.
2. dimethyl ether oil sprayer according to claim 1 is characterized in that, described oil nozzle (5) has the round platform hole, and the miner diameter end in described round platform hole is a valve port, and described valve port is communicated with described nozzle opening (5) and described oil-feed oil duct (4); Described needle-valve head (21) comprises and joining successively and first conical surface section (211), the second round platform section (212) and the 3rd round platform section (213) that is connected with the valve rod (22) of described needle-valve (2) of tapering convergent; The described second round platform section (212) is adaptive with the sealing of described round platform hole, and the wear resistant coating (215) of described needle-valve (2) is located on the described second round platform section (212).
3. dimethyl ether oil sprayer according to claim 1 is characterized in that, described oil nozzle (5) has the round platform hole, and the miner diameter end in described round platform hole is a valve port, and described valve port is communicated with described nozzle opening (5) and described oil-feed oil duct (4); Described needle-valve head (21) has and described round platform hole sealing suitable cone section (214).
4. according to each described dimethyl ether oil sprayer of claim 1 to 3, it is characterized in that the head outer diameter of described oil nozzle (5) and the ratio of head internal diameter is more than or equal to 2.5, and be less than or equal to 3.3.
5. dimethyl ether oil sprayer according to claim 4 is characterized in that, compare more than or equal to 0.36 in the aperture of described nozzle opening (51), and be less than or equal to 0.42.
6. dimethyl ether oil sprayer according to claim 5 is characterized in that, the preset pressure of described pressure adjusting spring (3) is less than or equal to 18MPa, and more than or equal to 16MPa.
7. a dimethyl ether engine fuel oil supply system comprises the dimethyl ether Injection Pump and is attached thereto the dimethyl ether oil sprayer that connects, and it is characterized in that, described dimethyl ether oil sprayer is each described dimethyl ether oil sprayer of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078794 CN102182599A (en) | 2011-03-30 | 2011-03-30 | Dimethyl ether engine fuel supply system and fuel injector thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078794 CN102182599A (en) | 2011-03-30 | 2011-03-30 | Dimethyl ether engine fuel supply system and fuel injector thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102182599A true CN102182599A (en) | 2011-09-14 |
Family
ID=44568871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110078794 Pending CN102182599A (en) | 2011-03-30 | 2011-03-30 | Dimethyl ether engine fuel supply system and fuel injector thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182599A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719996A (en) * | 2017-04-18 | 2020-01-21 | 德尔福知识产权有限公司 | Needle coating for fuel injector |
| CN110985253A (en) * | 2019-12-31 | 2020-04-10 | 南岳电控（衡阳）工业技术股份有限公司 | A methanol fuel injector |
| CN112228262A (en) * | 2020-09-30 | 2021-01-15 | 江苏大学 | A diesel fuel injector based on vortex cavitation-induced hollow spray structure in the nozzle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198507A (en) * | 1997-05-05 | 1998-11-11 | 贵州红林机械厂 | Needle valve injector |
| JP2001107826A (en) * | 1999-10-12 | 2001-04-17 | Toyota Motor Corp | Fuel injection nozzle for in-cylinder injection internal combustion engine |
| CN1682029A (en) * | 2002-09-17 | 2005-10-12 | 株式会社博世汽车系统 | Fuel injection nozzle for DME fuel, and diesel engine including the fuel injection nozzle for DME fuel |
| CN201474815U (en) * | 2009-03-24 | 2010-05-19 | 郭义成 | Oil injection nozzle needle valve body with transition section on inlet of pressure chamber |
| CN101985911A (en) * | 2010-11-11 | 2011-03-16 | 常州易通燃油喷射器制造有限公司 | Diesel injector suitable for various fuels |
| CN202012431U (en) * | 2011-03-30 | 2011-10-19 | 潍柴动力股份有限公司 | Dimethyl ether engine fuel supplying system and the fuel injector thereof |
-
2011
- 2011-03-30 CN CN 201110078794 patent/CN102182599A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198507A (en) * | 1997-05-05 | 1998-11-11 | 贵州红林机械厂 | Needle valve injector |
| JP2001107826A (en) * | 1999-10-12 | 2001-04-17 | Toyota Motor Corp | Fuel injection nozzle for in-cylinder injection internal combustion engine |
| CN1682029A (en) * | 2002-09-17 | 2005-10-12 | 株式会社博世汽车系统 | Fuel injection nozzle for DME fuel, and diesel engine including the fuel injection nozzle for DME fuel |
| CN201474815U (en) * | 2009-03-24 | 2010-05-19 | 郭义成 | Oil injection nozzle needle valve body with transition section on inlet of pressure chamber |
| CN101985911A (en) * | 2010-11-11 | 2011-03-16 | 常州易通燃油喷射器制造有限公司 | Diesel injector suitable for various fuels |
| CN202012431U (en) * | 2011-03-30 | 2011-10-19 | 潍柴动力股份有限公司 | Dimethyl ether engine fuel supplying system and the fuel injector thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719996A (en) * | 2017-04-18 | 2020-01-21 | 德尔福知识产权有限公司 | Needle coating for fuel injector |
| CN110985253A (en) * | 2019-12-31 | 2020-04-10 | 南岳电控（衡阳）工业技术股份有限公司 | A methanol fuel injector |
| CN112228262A (en) * | 2020-09-30 | 2021-01-15 | 江苏大学 | A diesel fuel injector based on vortex cavitation-induced hollow spray structure in the nozzle |
| CN112228262B (en) * | 2020-09-30 | 2022-07-22 | 江苏大学 | Diesel injector based on nozzle internal vortex cavitation induction hollow spraying structure |
| US11614061B2 (en) | 2020-09-30 | 2023-03-28 | Jiangsu University | Diesel fuel injector based on hollow spray structure induced by vortex cavitation in nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101680413B (en) | Control valve for a fuel injection valve | |
| JP6812427B2 (en) | Large low-speed 2-stroke engine with SIP lubricating oil injector | |
| CN103967671A (en) | Dual-valve orifice-area-variable fuel nozzle | |
| CN104533684A (en) | Double-control-valve multi-sealing-tape fuel nozzle | |
| US20150114353A1 (en) | Injection nozzle | |
| CN102182599A (en) | Dimethyl ether engine fuel supply system and fuel injector thereof | |
| CN102979654A (en) | Cooling-type needle valve coupling with carbon deposition prevention effect | |
| CN1223711A (en) | Liquid fuel injection device for internal combustion engine | |
| CN101368740A (en) | Enclosed fluctuation centrifugal injection nozzle | |
| CN102322378A (en) | Low-viscosity fuel injector of diesel engine | |
| CN202012431U (en) | Dimethyl ether engine fuel supplying system and the fuel injector thereof | |
| CN101338718B (en) | Plunger couple for injection pump of diesel engine for ship | |
| CN102926904A (en) | Elongated oil nozzle for small bore swirl chamber diesel engine | |
| CN212318195U (en) | Common rail oil sprayer with quick switching function | |
| CN104265533A (en) | Novel common rail oil injector | |
| CN102182598B (en) | Dimethyl-ether engine fuel oil supply system and fuel injection pump thereof | |
| CN114992025B (en) | Aeroengine fuel injector matching part adapting to carbon-negative biofuel supply | |
| CN102777301B (en) | A marine diesel fuel injector | |
| RU2211363C1 (en) | Diesel engine nozzle spray tip | |
| RU2451205C2 (en) | Diesel engine spray injector nozzle | |
| CN102748177B (en) | Oil sprayer assembly of long-needle marine diesel engine | |
| CN202690288U (en) | Marine diesel engine injector | |
| RU2431757C1 (en) | Injection nozzle | |
| CN201884176U (en) | Fuel-injection nozzle matching part | |
| CN102748178A (en) | Marine diesel injector assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |