CN106014738A - Obstructing type oil injection method and oil injection nozzle - Google Patents
Obstructing type oil injection method and oil injection nozzle Download PDFInfo
- Publication number
- CN106014738A CN106014738A CN201610544252.XA CN201610544252A CN106014738A CN 106014738 A CN106014738 A CN 106014738A CN 201610544252 A CN201610544252 A CN 201610544252A CN 106014738 A CN106014738 A CN 106014738A
- Authority
- CN
- China
- Prior art keywords
- section
- nozzle opening
- oil injection
- pressure chamber
- ring packing
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188
Landscapes
- 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 an obstructing type oil injection method and an oil injection nozzle. The oil injection nozzle comprises a valve body and a valve needle. The valve body comprises a pressure chamber, an oil inflow hole and multiple oil injection holes. The oil inflow hole is connected to the pressure chamber. The pressure chamber is connected to the oil injection holes. The valve needle is located in the pressure chamber and comprises a taper sealing part which is pressed to the oil injection holes. The taper sealing part comprises a first annular sealing section and a second annular sealing section, the first annular sealing section is located above at least one oil injection hole, and the second annular sealing section is located below at least one oil injection hole. The oil injection holes are completely sealed by the first annular sealing section and the second annular sealing section from the two sides so that diesel oil can be prevented from entering the oil injection holes from the upper portion, and combustibles in a combustion chamber can be prevented from entering a taper region of the pressure chamber.
Description
Technical field
The present invention relates to diesel engine fuel injecting device, particularly relate to baffle type fuel injecting method and atomizer.
Background technology
That injection valve of 201010165938.0 has nozzle tube, at least separates fuel injection passage from its blind hole of this nozzle tube.Valve seat orifice constitutes cone along the direction to blind hole, determines the first valve seat bearing-surface on the inwall limiting valve seat orifice.Nozzle needle has valve seat part and the conical seal (contact) face (tip portion) being connected in valve seat part, and this tip portion can control atomizer opening and closing.This point is pyramidal structure, is located immediately at the top of nozzle opening group.Although this pyramidal structure can limit diesel oil and enter nozzle opening, but the comburant in combustor cannot be stoped to enter the conical region at nozzle opening.
Summary of the invention
The present invention proposes a kind of baffle type fuel injecting method and atomizer, arranges double sealing structure on conical seal (contact) face, and the comburant in combustor can be stoped to enter the conical region at nozzle opening.
The technical scheme is that and be achieved in that:
A kind of baffle type fuel injecting method, opens needle, is released by diesel oil from nozzle opening；Close needle, the second ring packing section is set in the lower section of nozzle opening；Second ring packing section stops the comburant in combustor to enter the conical region at nozzle opening.
A kind of atomizer, including valve body and needle, described valve body includes pressure chamber, fuel feed hole and multiple nozzle opening, described fuel feed hole is connected to described pressure chamber, this pressure chamber is connected to described nozzle opening, described needle is positioned at this pressure chamber, it is characterized in that, described needle includes conical seal, this conical seal is pressed on described nozzle opening, wherein, this conical seal includes first annular seal section and the second ring packing section, described first annular seal section is positioned at the top of the described nozzle opening of at least one, described second ring packing section is positioned at the lower section of the described nozzle opening of at least one.
In the atomizer of the present invention, described first annular seal section and the second ring packing Duan Jingyi arc guide surface connect.
In the atomizer of the present invention, described conical seal also includes that the 3rd ring packing section, the 3rd ring packing section are positioned at the lower section of the described nozzle opening of at least one.
In the atomizer of the present invention, between described oil storage section and fuel feed hole, it is provided with an arc transiting surface.
Implement this baffle type fuel injecting method and the atomizer of the present invention, have the advantages that first annular seal section and the second ring packing section fully seal nozzle opening from both sides respectively, both diesel oil can have been stoped to enter nozzle opening from top, the comburant in combustor can be stoped again to enter the conical region of pressure chamber.When valve body is provided with multiple rows of nozzle opening, the 3rd ring packing Duan Yike plays respective action.For the arcuate structure of depression between seal section, bootable diesel oil flows out nozzle opening.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this atomizer of the present invention；
Fig. 2 is the partial view of Fig. 1；
Fig. 3 be Fig. 1 another at partial view；
Fig. 4 is the schematic diagram of another state of Fig. 3；
Fig. 5 is the partial view of Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Such as this diesel oil injection nozzle of Fig. 1 to the present invention shown in 5, including valve body 100 and needle 200.Described valve body 100 includes that pressure chamber 110, fuel feed hole 120 and multiple nozzle opening 130, described fuel feed hole 120 are connected to described pressure chamber 110, and this pressure chamber 110 is connected to described nozzle opening 130, and described needle 200 is positioned at this pressure chamber 110.Described needle 200 includes conical seal 210, and this conical seal 210 is pressed on described nozzle opening 130.The top of existing conical seal main seal nozzle opening, causes the comburant in combustor can be directly entered the conical region below conical seal.In the present embodiment, conical seal 210 includes first annular seal section 211 and the second ring packing section 212, described first annular seal section 211 is positioned at the top of the described nozzle opening 130 of at least one, and described second ring packing section 212 is positioned at the lower section of the described nozzle opening 130 of at least one.First annular seal section 211 and the second ring packing section 212 fully seal nozzle opening 130 respectively from both sides, diesel oil both can have been stoped from top to enter nozzle opening 130, the comburant in combustor can be stoped again to enter the conical region below pressure chamber 110.Described conical seal 210 also includes that the 3rd ring packing section 213, the 3rd ring packing section 213 are positioned at the lower section of the described nozzle opening 130 of at least one.When valve body 100 is provided with multiple rows of nozzle opening 130, the 3rd ring packing section 213 also can play respective action.Described first annular seal section 211 is connected through an arc guide surface 214 with the second ring packing section 212, and the bootable diesel oil of arcuate structure between seal section flows out nozzle opening 130.
Described pressure chamber 110 is made up of damping section 111, guide section 112 and oil storage section 113, and described damping section 111, guide section 112 and oil storage section 113 are coaxial.201310285655.3 the structure that deviates to side of that damping position be unfavorable for that needle positions.Described needle 200 also includes damper portion 220, and this damper portion 220 is positioned at described damping section 111.The diameter of described damping section 111 is more than the diameter of described damper portion 220, and the diameter of this damper portion 220 is more than the diameter of described guide section 112.Storing a small amount of fuel oil in damping section 111, when needle 200 falls after rise to valve body 100, damper portion 220 enters damping section 111, is extruded by fuel oil.Fuel oil slows down the needle 200 shock to valve body 100 during being extruded, it is to avoid part injury.After damper portion 220 enters damping section 111, fuel oil can limit again needle 200 and reversely beat, it is to avoid secondary fuel injection.The height of described damper portion 220 is more than described damping section 111.Even if this structure is conducive to damper portion 220 to completely attach to the bottom of damping section 111, fuel oil still will not cover the top of damper portion 220, it is to avoid needle 200 motion is additionally limited.Additionally, be provided with an arc transiting surface 121 between described oil storage section 113 and fuel feed hole 120, this arc transiting surface 121 can avoid cavitation, it is to avoid part is corroded.
As the preferred structure of indefiniteness, valve body 100 can also have intersection spray orifice 140 outside nozzle opening 130, and described intersection spray orifice 140 is positioned at the lower section of described nozzle opening 130.Described intersection spray orifice 140 includes the first fuel feed hole the 141, second fuel feed hole 142 and oil outlet 143, and this first fuel feed hole 141 and the second fuel feed hole 142 are respectively positioned between described conical seal 210 and oil outlet 143.Described first fuel feed hole 141 and the second fuel feed hole 142 are connected to described oil outlet 143, and the sectional area of this oil outlet 143 is less than described first fuel feed hole 141 and the sectional area sum of the second fuel feed hole 142.The first separate fuel feed hole 141 and the second fuel feed hole 142 all can oil-feed, this diesel oil imports and sprays after oil outlet 143.Oil outlet 143 area is less, and diesel oil forms turbulent flow after leaving oil outlet 143, and the diesel oil after ejection is more easy to and air contact, improves efficiency of combustion.The sectional area of described oil outlet 143 is more than the sectional area of described first fuel feed hole 141.The sectional area of oil outlet 143 should be greater than the sectional area of a fuel feed hole 120, it is ensured that diesel oil has enough spaces to flow out.The axes intersect of described first fuel feed hole 141 and the second fuel feed hole 142 forms acute angle.Two fuel feed holes 120 acutangulated mutually advantageously reduce resistance when diesel oil imports.Being provided with arc enlarging 144 between described first fuel feed hole 141 and described oil outlet 143, the maximum secting area of this arc enlarging 144 is more than the sectional area of described oil outlet 143.Arc enlarging 144 area is relatively big, is conducive to the formation of turbulent flow.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a baffle type fuel injecting method, opens needle, is released by diesel oil from nozzle opening；Close needle, the second ring packing section is set in the lower section of nozzle opening；Second ring packing section stops the comburant in combustor to enter the conical region at nozzle opening.
2. an atomizer, including valve body and needle, described valve body includes pressure chamber, fuel feed hole and multiple nozzle opening, described fuel feed hole is connected to described pressure chamber, this pressure chamber is connected to described nozzle opening, described needle is positioned at this pressure chamber, it is characterized in that, described needle includes conical seal, this conical seal is pressed on described nozzle opening, wherein, this conical seal includes first annular seal section and the second ring packing section, described first annular seal section is positioned at the top of the described nozzle opening of at least one, described second ring packing section is positioned at the lower section of the described nozzle opening of at least one.
Atomizer the most according to claim 2, it is characterised in that described first annular seal section and the second ring packing Duan Jingyi arc guide surface connect.
Atomizer the most according to claim 2, it is characterised in that described conical seal also includes that the 3rd ring packing section, the 3rd ring packing section are positioned at the lower section of the described nozzle opening of at least one.
Atomizer the most according to claim 2, it is characterised in that be provided with an arc transiting surface between described oil storage section and fuel feed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544252.XA CN106014738A (en) | 2016-07-12 | 2016-07-12 | Obstructing type oil injection method and oil injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544252.XA CN106014738A (en) | 2016-07-12 | 2016-07-12 | Obstructing type oil injection method and oil injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014738A true CN106014738A (en) | 2016-10-12 |
Family
ID=57108878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610544252.XA Pending CN106014738A (en) | 2016-07-12 | 2016-07-12 | Obstructing type oil injection method and oil injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194240A (en) * | 2018-01-19 | 2018-06-22 | 南京世界村汽车动力有限公司 | A kind of engine nozzle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10306808A1 (en) * | 2003-02-18 | 2004-09-02 | Siemens Ag | Injector for injecting fuel |
| DE10338946A1 (en) * | 2003-08-25 | 2005-03-24 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine of vehicle, closes injection openings downstream and upstream and connects pressure- and intermediate chambers |
| WO2005068824A1 (en) * | 2004-01-15 | 2005-07-28 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| WO2005106238A1 (en) * | 2004-04-30 | 2005-11-10 | Siemens Aktiengesellschaft | Nozzle assembly group and valve |
| CN1711415A (en) * | 2002-11-11 | 2005-12-21 | 罗伯特·博世有限公司 | Fuel injection valve for internal combustion engines |
| CN1771389A (en) * | 2003-05-19 | 2006-05-10 | 罗伯特·博世有限公司 | Fuel injection valve for combustion engines |
| US20070108317A1 (en) * | 2003-11-24 | 2007-05-17 | Friedrich Boecking | Fuel injection device, in particular for an internal combustion engine with direct fuel injection, and method for producing it non-provisional, utility |
| CN104334866A (en) * | 2012-06-05 | 2015-02-04 | 卡特彼勒发动机有限及两合公司 | Injection nozzle |
| CN105298706A (en) * | 2014-07-09 | 2016-02-03 | 江苏大学 | Needle valve assembly of fuel oil injection device |
| CN206495735U (en) * | 2016-07-12 | 2017-09-15 | 江西汇尔油泵油嘴有限公司 | A kind of atomizer of internal combustion engine |
-
2016
- 2016-07-12 CN CN201610544252.XA patent/CN106014738A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711415A (en) * | 2002-11-11 | 2005-12-21 | 罗伯特·博世有限公司 | Fuel injection valve for internal combustion engines |
| DE10306808A1 (en) * | 2003-02-18 | 2004-09-02 | Siemens Ag | Injector for injecting fuel |
| CN1771389A (en) * | 2003-05-19 | 2006-05-10 | 罗伯特·博世有限公司 | Fuel injection valve for combustion engines |
| DE10338946A1 (en) * | 2003-08-25 | 2005-03-24 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine of vehicle, closes injection openings downstream and upstream and connects pressure- and intermediate chambers |
| US20070108317A1 (en) * | 2003-11-24 | 2007-05-17 | Friedrich Boecking | Fuel injection device, in particular for an internal combustion engine with direct fuel injection, and method for producing it non-provisional, utility |
| WO2005068824A1 (en) * | 2004-01-15 | 2005-07-28 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| WO2005106238A1 (en) * | 2004-04-30 | 2005-11-10 | Siemens Aktiengesellschaft | Nozzle assembly group and valve |
| CN104334866A (en) * | 2012-06-05 | 2015-02-04 | 卡特彼勒发动机有限及两合公司 | Injection nozzle |
| CN105298706A (en) * | 2014-07-09 | 2016-02-03 | 江苏大学 | Needle valve assembly of fuel oil injection device |
| CN206495735U (en) * | 2016-07-12 | 2017-09-15 | 江西汇尔油泵油嘴有限公司 | A kind of atomizer of internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194240A (en) * | 2018-01-19 | 2018-06-22 | 南京世界村汽车动力有限公司 | A kind of engine nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1952816A (en) | Fuel injector | |
| US6848635B2 (en) | Fuel injector nozzle assembly with induced turbulence | |
| CN202900503U (en) | Novel aperture atomizer for diesel engine | |
| US10774800B2 (en) | Nozzle body and fuel injection valve | |
| US20130008983A1 (en) | Injection nozzle | |
| JP5039153B2 (en) | Fuel injector with additional flow restriction | |
| JP5044335B2 (en) | Fuel injection nozzle | |
| CN106014738A (en) | Obstructing type oil injection method and oil injection nozzle | |
| CN206495735U (en) | A kind of atomizer of internal combustion engine | |
| US9874188B2 (en) | Fuel injection valve | |
| CN105971795A (en) | Oil injection nozzle with crossed spraying holes and crossed oil injection method | |
| JP2006522887A (en) | Fuel injection valve for internal combustion engine | |
| CN205823523U (en) | The atomizer of band intersection spray orifice | |
| JP2019090388A (en) | Fuel injection device | |
| CN205823522U (en) | A kind of atomizer of diesel engine | |
| CN104265533B (en) | A kind of common-rail injector | |
| JP6474694B2 (en) | Fuel injection nozzle | |
| CN106286056B (en) | Fuel injection nozzle | |
| CN101871412B (en) | Fuel injection nozzle for internal combustion engine | |
| US3156414A (en) | Fuel injection nozzle | |
| JP5822254B2 (en) | Fuel injector for internal combustion engines | |
| CN205823519U (en) | Atomizer with perturbations | |
| CN210217972U (en) | VE distribution pump damping delivery valve | |
| CN106194537A (en) | A kind of damp type fuel injecting method and damp type atomizer | |
| CN205823516U (en) | Pintaux diesel injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
|
| WD01 | Invention patent application deemed withdrawn after publication |