CN105910103B - Fuel oil heating fuel injector - Google Patents

Fuel oil heating fuel injector Download PDF

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Publication number
CN105910103B
CN105910103B CN201610440994.8A CN201610440994A CN105910103B CN 105910103 B CN105910103 B CN 105910103B CN 201610440994 A CN201610440994 A CN 201610440994A CN 105910103 B CN105910103 B CN 105910103B
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CN
China
Prior art keywords
plunger
oil
hole
nozzle
plunger bushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610440994.8A
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Chinese (zh)
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CN105910103A (en
Inventor
史亮
崔长在
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Individual
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Individual
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Priority to CN201610440994.8A priority Critical patent/CN105910103B/en
Publication of CN105910103A publication Critical patent/CN105910103A/en
Application granted granted Critical
Publication of CN105910103B publication Critical patent/CN105910103B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36Details, e.g. burner cooling means, noise reduction means
    • F23D11/38Nozzles; Cleaning devices therefor
    • F23D11/383Nozzles; Cleaning devices therefor with swirl means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/24Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
    • F23D11/26Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36Details, e.g. burner cooling means, noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2202/00Liquid fuel burners

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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)

Abstract

The invention discloses a kind of fuel oil heating fuel injector, belongs to fuel injector technical field, including nozzle, nozzle holder, plunger bushing, plunger, resetting spring, plunger bushing hold out against fixes sleeve, plunger adjusting rod, electromagnetic coil and solenoid housing;Wherein, plunger, electromagnetic coil and solenoid housing form electromagnet, plunger is installed in plunger bushing as electromagnet armature is formed, for resetting spring between plunger back-end and plunger adjusting rod, the oil-through-hole of plunger adjusting rod, the vertical blind hole of plunger tail end, horizontal oil-through hole, the through hole of plunger bushing tail end, the oil groove of plunger bushing outer wall, the nozzle opening on nozzle collectively form fuel flow communication jet path.The present invention realizes eddy flow oil spout using the oil groove of plunger bushing lateral wall, and atomizing effect is good, is moved using solenoid controlled plunger, realize the control of fuel injector oil spout state, during stop-spraying, the spray orifice of nozzle can be closed, realize instant oil-break, fuel oil controlled quentity controlled variable is accurate, meets that high-precision control requires.

Description

Fuel oil heating fuel injector
Technical field
The invention belongs to fuel injector technical field, and in particular to a kind of fuel oil heating fuel injector.
Background technology
At present, the fuel oil injector that the heating furnace of in the market uses has pressure type fuel injector, oil-return type fuel injector, rotary cup Fuel injector etc., in use, fuel injector are installed on heating furnace furnace wall, and the nozzle segment of fuel injector exposes in heating furnace Wall, due to particular job environment of heating furnace(High temperature), control the control devices such as the control valve of the start and stop of fuel injector all to install On the outside of heating furnace furnace wall, since control valve is located on the outside of furnace wall, after fuel injector stop-spraying, also have in the fuel injection passage of fuel injector Many fuel oils, these fuel oils also may proceed to burning untill burning-out, it is necessary to first supplement the fuel oil of oil duct after fuel injector starts, It could continue oil spout, the bad situation of atomizing effect easily occur, if fuel injector stop frequency is higher, at fuel injector nozzle just Combustion state can be constantly in, control just loses effect, and easily burns burner.
The content of the invention
The technical problem to be solved in the invention is to provide that a kind of atomizing effect is good, fuel oil controls accurate heating furnace to spray Oily device.
In order to solve the above technical problems, the technical solution adopted in the present invention is:
A kind of fuel oil heating fuel injector, including nozzle holder, the nozzle for being installed on nozzle holder front end, are installed on Plunger bushing, plunger, resetting spring in fuel injection housing body, the plunger bushing for being installed on nozzle holder rear end hold out against fixes sleeve, It is installed on plunger bushing and holds out against plunger adjusting rod in fixes sleeve, the electromagnetic coil being set on nozzle holder and protection electricity The solenoid housing of magnetic coil;Wherein, plunger, electromagnetic coil and solenoid housing form electromagnet, and plunger is as structure It is installed on into electromagnet armature in plunger bushing, resetting spring is located at plunger and between plunger bushing holds out against fixes sleeve, and covers On plunger adjusting rod, the center of the plunger adjusting rod is equipped with oil-through-hole, and the plunger tail end is equipped with to be led to plunger adjusting rod The vertical blind hole of oilhole connection, and the horizontal oil-through hole of vertical blind hole is connected, through hole is set on the plunger bushing tail end tube wall, The oil groove connected with through hole is set on plunger bushing outer wall, and the nozzle is equipped with nozzle opening, oil-through-hole, the plunger of plunger adjusting rod The vertical blind hole of tail end, horizontal oil-through hole, the through hole of plunger bushing tail end, the oil groove of plunger bushing outer wall, the nozzle opening on nozzle are total to With composition fuel flow communication jet path.
Further, the solenoid housing includes cylinder, is fixed on the end cap at cylinder both ends, is welded in cylinder lateral wall Inlet air mouthpiece that is upper and being connected with inner barrel, wherein being fixed on the end cap of cylinder one end uniformly distributed some logical close to edge part Air holes.
Further, the head end of the plunger is seal head, and the seal head is by one section of cone and one section of cylinder group Head end into, the plunger bushing is the conical section equipped with centre bore, and the cylinder diameter of centre bore aperture and seal head matches, The nozzle center is equipped with the two-stage taper hole of different tapers, the cone-apex angle of first order taper hole and the vertex of a cone of plunger bushing head end conical section Angle is identical, and the cone-apex angle of second level taper hole is identical with the cone-apex angle of cone on plunger seal head, second level taper hole and nozzle opening Connection, and the center line of second level taper hole is overlapped with the center line of nozzle opening;The cone-apex angle of the cone is 80-140 degree.
Further, it is gap-matched between the plunger and plunger bushing, which coordinates for minimum clearance.
Further, the lateral surface of the plunger is equipped with groove, and the groove is connected with horizontal oil-through hole.
Further, uniformly distributed a plurality of oil groove on the plunger bushing outer wall, every oil groove is by outside plunger bushing main body Wall finishing bathtray one and the oil groove two on plunger bushing head end circular cone section surface are formed, and wherein oil groove one is along outside plunger bushing main body Wall is uniformly arranged, and oil groove two is arranged along plunger bushing head end conical section surface array, and tangential direction of the oil groove two along centre bore Connected with centre bore.
Further, be connected through a screw thread between the nozzle and nozzle holder, and nozzle and nozzle holder it Between be equipped with copper gasket.
Further, the plunger bushing holds out against and is equipped with ring packing on the periphery of fixes sleeve and plunger adjusting rod Groove, installation sealing ring in seal groove during assembling.
By adopting the above-described technical solution, the technological progress that the present invention obtains is:
The present invention has carried out brand-new design to the structure of fuel injector, realizes that eddy flow sprays using the oil groove of plunger bushing lateral wall Oil, atomizing effect is good, is moved using solenoid controlled plunger, realizes the start-up and shut-down control of fuel injector oil spout state, can during stop-spraying To close the spray orifice of nozzle, instant oil-break is realized, suitable for high-frequency start-up and shut-down control, fuel oil controlled quentity controlled variable is accurate, meets high-precision The control of degree requires, and sets groove on plunger lateral surface, circulate fuel oil in groove, enhances the lubricant effect of plunger, prevents column Fork clip is dead, prevents from forming vacuum chamber between plunger front end and plunger bushing;Plunger adjusting rod can change rotation with the stroke of pilot plunger Flow chamber size, changes the sectional area of oil groove two, so as to change oil spout oil mass and flow velocity, controls the atomizing effect of nozzle, nozzle and Copper gasket is set between nozzle holder, can prevent oil leak, strengthens sealing effect.
Brief description of the drawings
Fig. 1 is overall schematic cross-sectional view of the invention;
Fig. 2 is plunger overlooking the structure diagram of the present invention;
Fig. 3 is plunger main structure diagram of the present invention;
Fig. 4 is plunger present invention looks up structural representation of the present invention;
Fig. 5 is plunger bushing overlooking the structure diagram of the present invention;
Fig. 6 is plunger bushing main structure diagram of the present invention;
Fig. 7 is plunger bushing present invention looks up structural representation of the present invention;
Fig. 8 is solenoid housing dimensional structure diagram of the present invention;
Fig. 9 is plunger adjusting rod main structure diagram of the present invention;
Figure 10 is that plunger bushing of the present invention holds out against fixes sleeve main structure diagram;
Figure 11 is nozzle holder main structure diagram of the present invention;
Wherein:1st, plunger adjusting rod, 2, plunger bushing hold out against fixes sleeve, 3, nozzle holder, 4, resetting spring, 5, column Plug, 6, plunger bushing, 7, copper gasket, 8, nozzle, 9, solenoid housing, 11, annular seal groove two, 21, annular seal groove One, 51, vertical blind hole, 52, horizontal oil-through hole, 53, groove, 54, cone, 55, cylinder, 61, through hole, 62, oil groove one, 63rd, oil groove two, 64, centre bore, 91, ventilation hole, 92, inlet air mouthpiece.
Embodiment
The present invention is described in further details with reference to embodiment:The present invention is the fuel oil used on a kind of heating furnace Fuel injector, different from common fuel injector, fuel injector of the invention carries out bold design in structure, controls the cut-out of oil circuit In the place of nozzle, the control frequency of fuel injector can be significantly improved, the oil jet path of fuel injector uses tangential direction in end, Eddy flow oil spout is formed, atomizing effect is good.
As shown in Fig. 1~11, fuel injector main body of the present invention is installed on the spray of 3 front end of nozzle holder by nozzle holder 3 Mouth 8, plunger bushing 6, plunger 5, the resetting spring 4 being installed in nozzle holder 3, are installed on the plunger of 3 rear end of nozzle holder Set holds out against fixes sleeve 2, is installed on plunger bushing and holds out against plunger adjusting rod 1 in fixes sleeve 2, is set on nozzle holder Electromagnetic coil and the solenoid housing 9 for protecting electromagnetic coil;Wherein, plunger 5, electromagnetic coil and solenoid housing 9 The electromagnet of control fuel injector oil spout state is formed, plunger 5 is installed in plunger bushing 6 as electromagnet armature is formed, and is resetted Spring 4 is located at plunger 5 and between plunger bushing holds out against fixes sleeve 2, and is sleeved on plunger adjusting rod 1.Plunger adjusting rod 1 is used for The stroke of pilot plunger, after electromagnetic coil is powered, plunger is withstood plunger adjusting rod 1 by electromagnet suction, resetting spring compression, Form spin chamber between plunger head end and plunger bushing, nozzle commencement of fuel injection, after electromagnetic coil power-off, resetting spring reset plunger, Stop oil spout.
In order to realize the perforation of oil circuit, and realize good atomization oil spout, the center of the plunger adjusting rod 1 is equipped with logical oil Hole, 5 tail end of plunger is equipped with the vertical blind hole 51 connected with 1 oil-through-hole of plunger adjusting rod, and connects vertical blind hole 51 Horizontal oil-through hole 52, through hole 61 is set on the 6 tail end tube wall of plunger bushing, the oil connected with through hole is set on plunger bushing outer wall Groove, the nozzle 8 are equipped with nozzle opening, the oil-through-hole of plunger adjusting rod 1, the vertical blind hole 51 of 5 tail end of plunger, horizontal oil-through hole 52nd, the through hole 61 of plunger bushing tail end, the oil groove of plunger bushing outer wall, the nozzle opening on nozzle collectively form fuel flow communication injection road Footpath.
As shown in figure 8, solenoid housing 9 of the present invention includes cylinder, the end cap at cylinder both ends is fixed on, is welded in cylinder The inlet air mouthpiece 92 connected on side wall and with inner barrel, is evenly distributed with wherein being fixed on the end cap of cylinder one end close to edge part Some ventilation holes 91, inlet air mouthpiece connection cooling wind, cooling wind are entered inside solenoid housing by inlet air mouthpiece, passed through Discharged around electromagnetic coil and then by some ventilation holes, electromagnetic coil is cooled down.During actual installation, one with ventilation hole Side end cap can cool down, and can cool down to nozzle close to furnace wall medial surface side to coil.Why ventilating system is set, is Because the burner is installed on heating furnace furnace wall, and heating furnace is high-temperature heating device, and furnace wall temperature is very high, passes through spray The heat that oily device body passes to, it is easy to make electromagnetic coil insulating layer quick aging, electromagnetic coil damage.
As shown in figs. 2 to 4, the head end of plunger 5 of the present invention is seal head, and the seal head is by one section of cone 54 and one section Cylinder 55 forms, and seal head is used for realization the stop-spraying oil-break of fuel injector.As shown in Fig. 5~7, the head end of plunger bushing of the present invention is 55 diameter of cylinder of conical section equipped with centre bore 64,64 aperture of centre bore and seal head matches, and 8 center of nozzle is set There is the two-stage taper hole of different tapers, the cone-apex angle of first order taper hole is identical with the cone-apex angle of plunger bushing head end conical section, the second level The cone-apex angle of taper hole is identical with the cone-apex angle of cone 54 on plunger seal head, and second level taper hole is connected with nozzle opening, and the The center line of two level taper hole is overlapped with the center line of nozzle opening.In order to obtain good atomizing effect, and when ensureing stop-spraying oil-break Shut-off effect, realize immediately shut-off, improve the oil spout frequency of fuel injector, the cone-apex angle of the cone 54 is 80-140 degree, Change the angle, thus it is possible to vary atomizing angle.
In order to ensure control accuracy, the second taper hole on cone and nozzle on plunger is tightly coordinated, realize instant Oil-break, is gap-matched between the plunger 5 and plunger bushing 6, and the clearance fit coordinates for minimum clearance.Due to coordinating Coordinated using minimum clearance, in order to ensure regular event of the plunger in plunger bushing, do not produce clamping stagnation and plunger front end with Vacuum chamber is not produced between plunger bushing, the lateral surface of the plunger 5 is equipped with groove 53, and the groove 53 connects with horizontal oil-through hole 52 Logical, fuel oil can be lubricated whole plunger, so as to prevent clamping stagnation, meanwhile, the setting of groove 53 can also be in plunger from pass When disconnected state is to oil spout state change, prevent from forming vacuum between plunger and plunger bushing.
In order to ensure fuel delivery, the needs of different distributive values are adapted to, are evenly distributed with a plurality of oil groove on 6 outer wall of plunger bushing, often Bar oil groove is by the oil groove two positioned at plunger bushing body outer wall finishing bathtray 1 and on plunger bushing head end circular cone section surface 63 are formed, and wherein oil groove 1 is uniformly arranged along plunger bushing body outer wall, and oil groove 2 63 is along plunger bushing head end circular cone section surface battle array Row arrangement, and oil groove two is connected along the tangential direction of centre bore 64 with centre bore 64, the design of oil groove two so that oil groove two Tangential direction is presented with centre bore 64 in fuel oil traffic direction, under the cooperation of the second taper hole, realizes swirl injection.The one of the present invention A specific embodiment, as shown in Fig. 5~7, totally two, the oil groove on 6 outer wall of plunger bushing, oil groove 1 is along plunger bushing body outer wall It is symmetrical arranged, oil groove 2 63 is arranged along plunger bushing head end conical section surface array.
In order to ensure the sealing of whole fuel injector, prevent oil leak, pass through screw thread between the nozzle 8 and nozzle holder 3 Connection, and copper gasket 7 is equipped between nozzle 8 and nozzle holder 3.As shown in Figure 10, the plunger bushing holds out against fixation The periphery of sleeve 2 is equipped with annular seal groove 1.As shown in figure 9, the periphery of plunger adjusting rod 1 is equipped with ring packing Groove 2 11, installation sealing ring in seal groove during assembling.

Claims (9)

  1. A kind of 1. fuel oil heating fuel injector, it is characterised in that:Including nozzle holder(3), it is installed on nozzle holder front end Nozzle(8), the plunger bushing that is installed in fuel injection housing body(6), plunger(5), resetting spring(4), it is installed on nozzle holder (3)The plunger bushing of rear end holds out against fixes sleeve(2), it is installed on plunger bushing and holds out against fixes sleeve(2)In plunger adjusting rod(1), It is set in nozzle holder(3)On electromagnetic coil and protect electromagnetic coil solenoid housing(9);Wherein, plunger (5), electromagnetic coil and solenoid housing(9)Form electromagnet, plunger(5)Column is installed on as electromagnet armature is formed Plug sleeve(6)In, resetting spring(4)Positioned at plunger(5)Fixes sleeve is held out against with plunger bushing(2)Between, and it is sleeved on plunger adjusting Bar(1)On, the plunger adjusting rod(1)Center be equipped with oil-through-hole, the plunger tail end is equipped with and plunger adjusting rod oil-through-hole The vertical blind hole of connection(51), and the vertical blind hole of connection(51)Horizontal oil-through hole(52), the plunger bushing(6)Tail end tube wall Upper setting through hole(61), plunger bushing(6)The oil groove connected with through hole, the nozzle are set on outer wall(8)It is equipped with nozzle opening, column Fill in adjusting rod(1)Oil-through-hole, plunger(5)The vertical blind hole of tail end(51), horizontal oil-through hole(52), plunger bushing(6)Tail end Through hole(61), plunger bushing(6)Oil groove, the nozzle of outer wall(8)On nozzle opening collectively form fuel flow communication jet path.
  2. 2. fuel oil heating fuel injector according to claim 1, it is characterised in that the solenoid housing(9)Including cylinder Body, is fixed on the end cap at cylinder both ends, the inlet air mouthpiece for being welded on cylinder lateral wall and being connected with inner barrel(92), wherein It is fixed on the end cap of cylinder one end and is evenly distributed with some ventilation holes close to edge part(91).
  3. 3. according to 1 or 2 any one of them fuel oil heating fuel injector of claim, it is characterised in that the plunger(5)Head Hold as seal head, the seal head is by one section of cone(54)With one section of cylinder(55)Composition, the plunger bushing(6)Head end For equipped with centre bore(64)Conical section, centre bore(64)The cylinder diameter of aperture and seal head matches, in the nozzle The heart is equipped with the two-stage taper hole of different tapers, and the cone-apex angle of first order taper hole is identical with the cone-apex angle of plunger bushing head end conical section, the The cone-apex angle of two level taper hole and cone on plunger seal head(54)Cone-apex angle it is identical, second level taper hole is connected with nozzle opening, And the center line of second level taper hole is overlapped with the center line of nozzle opening.
  4. 4. fuel oil heating fuel injector according to claim 3, it is characterised in that the cone(54)Cone-apex angle be 80-140 degree.
  5. 5. fuel oil heating fuel injector according to claim 4, it is characterised in that the plunger(5)With plunger bushing(6)It Between be gap-matched, the clearance fit be minimum clearance coordinate.
  6. 6. according to claim 1,2,4 or 5 any one of them fuel oil heating fuel injectors, it is characterised in that outside the plunger Side is equipped with groove, and the groove is connected with horizontal oil-through hole.
  7. 7. fuel oil heating fuel injector according to claim 6, it is characterised in that the plunger bushing(6)It is uniformly distributed more on outer wall Bar oil groove, every oil groove is by positioned at plunger bushing body outer wall finishing bathtray one(62)And positioned at plunger bushing head end circular cone section surface On oil groove two(63)Form, wherein oil groove one(62)It is uniformly arranged along plunger bushing body outer wall, oil groove two(63)Along plunger bushing Head end conical section surface array is arranged, and oil groove two is along centre bore(64)Tangential direction and centre bore(64)Connection.
  8. 8. fuel oil heating fuel injector according to claim 7, it is characterised in that the nozzle(8)And nozzle holder (3)Between be connected through a screw thread, and nozzle(8)And nozzle holder(3)Between be equipped with copper gasket.
  9. 9. fuel oil heating fuel injector according to claim 8, it is characterised in that the plunger bushing holds out against fixes sleeve(2) Periphery on be equipped with annular seal groove one(21), plunger adjusting rod(1)Periphery be equipped with annular seal groove two(11), Installation sealing ring in seal groove during assembling.
CN201610440994.8A 2016-06-20 2016-06-20 Fuel oil heating fuel injector Expired - Fee Related CN105910103B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610440994.8A CN105910103B (en) 2016-06-20 2016-06-20 Fuel oil heating fuel injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610440994.8A CN105910103B (en) 2016-06-20 2016-06-20 Fuel oil heating fuel injector

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Publication Number Publication Date
CN105910103A CN105910103A (en) 2016-08-31
CN105910103B true CN105910103B (en) 2018-04-13

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193010A (en) * 1982-05-04 1983-11-10 Yamamura Glass Kk Burner for heavy oil
US6186417B1 (en) * 2000-01-22 2001-02-13 Industrial Technology Research Institute Front pressure-swirl atomizer
CN2445206Y (en) * 2000-10-31 2001-08-29 河北工业大学 Internal ultrasonic mixed bubble atomization spray nozzle
CN101016874A (en) * 2007-03-13 2007-08-15 中国计量学院 Fuel-saving injection apparatus used in vehicles
CN101338716A (en) * 2008-09-02 2009-01-07 北京华威奇燃油喷射科技有限公司 High pressure co-rail electric control fuel injector
CN101532453A (en) * 2009-03-18 2009-09-16 临海弘征汽车电喷技术有限公司 Electromagnetic gasoline pump
CN201377371Y (en) * 2009-03-18 2010-01-06 临海弘征汽车电喷技术有限公司 Electromagnetic gasoline pump
CN101871411A (en) * 2010-06-11 2010-10-27 哈尔滨工程大学 Modularized electric unit pump
CN102721081A (en) * 2012-06-26 2012-10-10 哈尔滨工程大学 Nozzle for enhancing atomization by plasma
CN103925135A (en) * 2014-04-12 2014-07-16 哈尔滨工程大学 Common rail oil injector
CN204438112U (en) * 2014-12-23 2015-07-01 陈伟珍 A kind of burner nozzle
CN205807409U (en) * 2016-06-20 2016-12-14 史亮 Fuel oil heating fuel injector

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193010A (en) * 1982-05-04 1983-11-10 Yamamura Glass Kk Burner for heavy oil
US6186417B1 (en) * 2000-01-22 2001-02-13 Industrial Technology Research Institute Front pressure-swirl atomizer
CN2445206Y (en) * 2000-10-31 2001-08-29 河北工业大学 Internal ultrasonic mixed bubble atomization spray nozzle
CN101016874A (en) * 2007-03-13 2007-08-15 中国计量学院 Fuel-saving injection apparatus used in vehicles
CN101338716A (en) * 2008-09-02 2009-01-07 北京华威奇燃油喷射科技有限公司 High pressure co-rail electric control fuel injector
CN101532453A (en) * 2009-03-18 2009-09-16 临海弘征汽车电喷技术有限公司 Electromagnetic gasoline pump
CN201377371Y (en) * 2009-03-18 2010-01-06 临海弘征汽车电喷技术有限公司 Electromagnetic gasoline pump
CN101871411A (en) * 2010-06-11 2010-10-27 哈尔滨工程大学 Modularized electric unit pump
CN102721081A (en) * 2012-06-26 2012-10-10 哈尔滨工程大学 Nozzle for enhancing atomization by plasma
CN103925135A (en) * 2014-04-12 2014-07-16 哈尔滨工程大学 Common rail oil injector
CN204438112U (en) * 2014-12-23 2015-07-01 陈伟珍 A kind of burner nozzle
CN205807409U (en) * 2016-06-20 2016-12-14 史亮 Fuel oil heating fuel injector

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Granted publication date: 20180413

Termination date: 20210620