CN102192063A - A nozzle for a fuel injector for internal combustion engines, and method of manufacturing a nozzle - Google Patents
A nozzle for a fuel injector for internal combustion engines, and method of manufacturing a nozzle Download PDFInfo
- Publication number
- CN102192063A CN102192063A CN2011100520500A CN201110052050A CN102192063A CN 102192063 A CN102192063 A CN 102192063A CN 2011100520500 A CN2011100520500 A CN 2011100520500A CN 201110052050 A CN201110052050 A CN 201110052050A CN 102192063 A CN102192063 A CN 102192063A
- Authority
- CN
- China
- Prior art keywords
- vertical hole
- main body
- oil nozzle
- wearing layer
- tubular type
- 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.)
- Granted
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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
- F02M61/16—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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- 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
- F02M61/166—Selection of particular materials
-
- 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 a nozzle for a fuel injector for internal combustion engines, and a method of manufacturing the nozzle. The nozzle (10) for a fuel injector for internal combustion engines, having a body (12) of corrosion-resistant material with a longitudinal bore (14) closed at its bottom end and having a cylindrical guide surface (16), wherein a plurality of nozzle bores (18) is formed in a lateral wall of the body, and wherein said cylindrical guide surface (16) is formed on either: a wear resistant layer (20) formed on an inner surface (22) of the body (12) of corrosion resistant material, or a tubular sleeve (24) of wear resistant material inserted into said longitudinal bore (14).
Description
Technical field
The present invention relates to be used for the oil sprayer of internal-combustion engine.The present invention relates to large-scale four-stroke or the two stroke IC engine that is used to have or do not have crosshead particularly, for example is used for propelling peculiar to vessel or the stationary engine oil nozzle with diesel engine that power is provided.
More particularly, the method that the present invention relates to be used for the oil nozzle of oil sprayer and make this oil nozzle.
Background technique
In order to reduce the HC content in the exhaust, the unburned fuel carbon distribution that reduces flue dust, minimizing outlet valve place and piston place and maintenance firing chamber cleaning, the pressure chamber's volume that reduces in the oil nozzle front end is vital.A method is the spray orifice in directly closing the oil nozzle front end.
Possible and one of promising design are as for example disclosed scheme with the guiding valve that opens and closes spray orifice in EP-A-052937 and WO2008/071187.These documents disclose a kind of oil sprayer, and it comprises the tappet with the valve part of cooperate with the axonometer seat of corresponding valve guide bushing, and the cut off member in the valve of valve tappet extends to the center hole of oil nozzle below partly.The outer wall of cut off member is used to open and close the opening of spray orifice.
Under this design, the oil nozzle front end that hope can have the sclerosis slidingsurface in inside and externally have the corrosion and heat resistant part.
EP-A-1549449 discloses a kind of method of making the oil nozzle front end, and wherein in mould, erosion-resisting first alloy is set at and is used to constitute in the perimeter of the outer surface of the oil nozzle of spray orifice.Second alloy is used in another zone of oil nozzle.Each material in the mould is processed into fixed material by isostatic compaction.Borderline region between two kinds of alloys should not have crackle.
The problem of disclosed scheme is that this scheme is expensive in EP-A-1549449.In addition, therefore the minimum thickness of a millimeter of inside or outside need or several millimeters exists between two kinds of materials and lacks the risk that merges.
Summary of the invention
The purpose of this invention is to provide the improved oil nozzle that can overcome the problems referred to above and make this oil nozzle method.
According to the present invention, the oil nozzle of the feature of this purpose by having claim 1 and the method for manufacturing oil nozzle with feature of claim 5 realize.
Description of drawings
Other features and advantages of the present invention become apparent in the process with reference to the detailed description of accompanying drawing of only providing with the indefiniteness example subsequently, wherein:
Fig. 1 is the axial, cross-sectional view according to oil nozzle of the present invention;
Fig. 2 is by the zoomed-in view of the part shown in the arrow II among Fig. 1;
Fig. 3 is the axial, cross-sectional view of the oil nozzle of a third embodiment in accordance with the invention; And
Fig. 4 is the axial, cross-sectional view that the signal of embodiment's modification among Fig. 3 is shown.
Embodiment
Referring to Fig. 1, the oil nozzle that is used for the oil sprayer of internal-combustion engine is expressed as 10.Oil nozzle 10 has the main body 12 of corrosion-resistant material.Main body 12 does not have coating at its outer surface.
If chromium content is greater than the 20%(mass percent), material just can be defined as corrosion resistance in the application in large-scale diesel engine particularly burns the firing chamber of diesel engine (not having coating at outer surface) of reduced fuel oil so.
The example that is used for the corrosion-resistant material of this application comprises: stellite (Stellite) 6, Kazakhstan formula (Haynes) 188, stellite 4, Ying Kenai and (Inconel) MA 758, Kazakhstan formula 230, nicofer (Nicofer) 6125GT, alloy (Alloy) 6052, Ni Mengke nichrome (Nimonic) 81, Ying Kenai and 671, Kazakhstan formula 160.
A plurality of spray orifices 18 are formed in the sidewall of main body.Spray orifice 18 has accordingly towards inner opening in vertical hole 14 and the exit opening of opening on the outer surface of main body 12.
As among Fig. 2 in more detail shown in, cylindrical guide surface 16 is formed on the wearing layer 20, wearing layer 20 is formed on the internal surface 22 of main body 12 of corrosion-resistant material.
In this was used, definition " wear-resisting " meaned that layer 20 has greater than 40HRC, and is preferably greater than the hardness of 52HRC, and greater than the thickness of 0.001mm.Wearing layer should have the minimum hardness of 52HRC on the minimum total thickness of whole 0.001mm.
Wearing layer 20 can form by different way, comprising:
-carbonization (for example Austenitic Stainless Steel low temperature carburization (Kolsterising)),
The induction hardening of-cinclides,
-apply (hard chrome processing, DLC, WC, laser coating etc.) by deposition,
-plasma nitrided, and
The nitrogenize of-salt.
Under situation about applying, special effective method forms at least one spray orifice 18 before being included in coating step, and makes coating material cycle through vertical hole 14 and by spray orifice 18.Then, hole 18 diffuses into final size by machining, ECM, EDM etc.Circulation allows coating material can arrive the bottom in vertical hole.
Fig. 3 shows according to a second embodiment of the present invention.Represent by identical reference mark with previously described those element corresponding elements.
In the embodiments of figure 3, cylindrical guide surface 16 is formed by the internal surface of the tubular type sleeve 24 of high-abrasive material.Sleeve 24 is inserted in vertical hole 14 of main body 12 of corrosion-resistant material.
Fig. 3 also shows can axially movable valve element 26, and it engages the guide surface 16 of tubular type sleeve 24 slidably.
Fig. 4 shows the embodiment's of Fig. 3 modification, and wherein, the tubular type sleeve 28 of Heat Conduction Material is assemblied between the last front surface of the opening end in vertical hole 14 and tubular type sleeve 24.Sleeve 28 is made by the material that has than the sleeve 24 better thermal conductivity coefficients of high-abrasive material, thereby is effective for heat is passed away from the bottom of oil nozzle 10.
Claims (10)
1. the oil nozzle (10) that is used for the internal-combustion engine oil sprayer, the main body (12) that comprises corrosion-resistant material, main body (12) has vertical hole (14) of sealing and comprise cylindrical guide surface (16) in its bottom, wherein, a plurality of spray orifices (18) are formed in the sidewall of main body (12), and spray orifice (18) has accordingly towards the exit opening that arrives the inner opening in vertical hole (14) and open on the outer surface of main body (12); It is characterized in that described cylindrical guide surface (16) is formed on:
Wearing layer (20) go up or the tubular type sleeve (24) of high-abrasive material on, described wearing layer (20) is formed on the internal surface (22) of main body (12) of corrosion-resistant material, described tubular type sleeve (24) is inserted in described vertical hole (14).
2. according to the oil nozzle of claim 1, it is characterized in that described corrosion resistant material has the chromium content greater than 20% mass percent.
3. according to the oil nozzle of claim 1, it is characterized in that described wearing layer (20) has greater than the hardness of 52HRC with greater than the thickness of 0.001mm.
4. according to the oil nozzle of claim 1, it is characterized in that method forms described wearing layer (20) in the following method by being selected from: carbonization, induction hardening applies by deposition, and is plasma nitrided, and the salt nitrogenize.
5. according to the oil nozzle of claim 1, it is characterized in that the tubular type sleeve (24) of high-abrasive material is pressed into, shrink-fit is floated to vertical hole (14) or with respect to vertical hole (14).
6. according to the oil nozzle of claim 1, it is characterized in that second sleeve (28) of Heat Conduction Material is mounted in described vertical hole (14) between the last front surface of tubular type sleeve (24) of the opening end in vertical hole (14) and high-abrasive material.
7. make the method for the oil nozzle (10) that is used for the internal-combustion engine oil sprayer, comprise the main body (12) that forms corrosion-resistant material, described main body (12) has vertical hole (14) of sealing and comprise cylindrical guide surface (16) in its bottom; Form a plurality of spray orifices (18) in the sidewall of main body, spray orifice (18) has accordingly towards the exit opening that arrives the inner opening in vertical hole (14) and open on the outer surface of main body (12); It is characterized in that described cylindrical guide surface (16) is formed on:
Wearing layer (20) go up or tubular type sleeve (24) on, described wearing layer (20) is formed on the internal surface (22) of main body (12) of corrosion-resistant material, described tubular type sleeve (24) is inserted in described vertical hole (14).
8. according to the method for claim 7, it is characterized in that described wearing layer (20) is formed by the method that is selected from following mode: carbonization, induction hardening applies by deposition, and is plasma nitrided, and the salt nitrogenize.
9. method according to Claim 8 is characterized in that, the described coating by deposition is by coating material being cycled through described vertical hole (14) and obtaining by described spray orifice (18).
10. according to the method for claim 7, it is characterized in that the described tubular type sleeve (24) of high-abrasive material is pressed into, shrink-fit is floated to vertical hole (14) or with respect to vertical hole (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10155571.2 | 2010-03-05 | ||
| EP10155571.2A EP2365206B1 (en) | 2010-03-05 | 2010-03-05 | A nozzle for a fuel injector for internal combustion engines, and method of manufacturing a nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192063A true CN102192063A (en) | 2011-09-21 |
| CN102192063B CN102192063B (en) | 2017-06-27 |
Family
ID=42732225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110052050.0A Expired - Fee Related CN102192063B (en) | 2010-03-05 | 2011-03-04 | The method of atomizer and manufacture atomizer for fuel injector for internal combustion engines |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2365206B1 (en) |
| JP (1) | JP5798762B2 (en) |
| KR (1) | KR20110101056A (en) |
| CN (1) | CN102192063B (en) |
| DK (1) | DK2365206T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026446A (en) * | 2017-11-01 | 2018-12-18 | 李寿哲 | Use the combustion gas valve nozzle of different materials |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK179113B1 (en) * | 2015-04-29 | 2017-11-06 | Hans Jensen Lubricators As | Lubricant injector for large slow-running two-stroke engine and production method |
| GB2563928B (en) * | 2017-06-30 | 2019-11-13 | Ricardo Uk Ltd | Injector |
| KR20200045596A (en) | 2018-10-22 | 2020-05-06 | (주)팀솔루션 | Robot loading arm system for filling fuel |
| BR102019004737A2 (en) * | 2019-03-11 | 2020-10-06 | Fmc Technologies Do Brasil Ltda | COMPOSITE MATERIAL WITH COATED DIFFUSED LAYER |
| WO2023073140A1 (en) * | 2021-10-29 | 2023-05-04 | Ganser Crs Ag | Fuel injection valve for internal combustion engines |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246373A1 (en) * | 1986-05-22 | 1987-11-25 | Osamu Matsumura | Fuel injection apparatus |
| WO1993007386A1 (en) * | 1991-10-04 | 1993-04-15 | Man B&W Diesel A/S | A fuel injector for internal combustion engines |
| WO2003006821A1 (en) * | 2001-07-10 | 2003-01-23 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| CN1409001A (en) * | 2001-09-20 | 2003-04-09 | 雅马哈发动机株式会社 | Ejector lay-out structure for fuel jet engine |
| DE10318135A1 (en) * | 2002-04-23 | 2003-11-06 | Denso Corp | Fuel injector for an internal combustion engine comprises a nozzle body having injection holes for the fuel injection and a needle for pushing into the nozzle body for opening and closing the injection holes |
| CN1692224A (en) * | 2002-10-07 | 2005-11-02 | 曼B与W狄赛尔公司 | A nozzle for a fuel valve in a diesel engine, and a method of manufacturing a nozzle |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK495880A (en) * | 1980-11-20 | 1982-05-21 | B & W Diesel As | FUEL ENGINE FOR COMBUSTION ENGINES |
| EP0569655B1 (en) * | 1992-05-11 | 1996-01-24 | New Sulzer Diesel AG | Injection nozzle for a fuel injection device |
| JPH08144896A (en) * | 1994-11-25 | 1996-06-04 | Zexel Corp | Variable nozzle hole type fuel injection nozzle |
| EP0967382B1 (en) * | 1998-06-24 | 2004-11-24 | Delphi Technologies, Inc. | Fuel injector |
| JP2001221123A (en) * | 2000-02-07 | 2001-08-17 | Nissan Diesel Motor Co Ltd | Strut for cooling fuel injection nozzle |
| JP4607383B2 (en) * | 2001-07-30 | 2011-01-05 | いすゞ自動車株式会社 | Manufacturing method of fuel injection injector and manufacturing method of fuel injection pump |
| ES2318153T3 (en) | 2002-10-07 | 2009-05-01 | Man Diesel, Filial Af Man Diesel Se, Tyskland | METHOD FOR MANUFACTURING A NOZZLE FOR FUEL VALVE ON A DIESEL ENGINE, AND NOZZLE. |
| WO2008071187A1 (en) | 2006-12-15 | 2008-06-19 | Man Diesel A/S | A fuel injector for an internal combustion engine |
| JP2008291738A (en) * | 2007-05-24 | 2008-12-04 | Denso Corp | Fuel injection valve |
| JP4866336B2 (en) * | 2007-11-28 | 2012-02-01 | 株式会社ケーヒン | Electromagnetic fuel injection valve |
| JP2009236095A (en) * | 2008-03-28 | 2009-10-15 | Denso Corp | Fuel injection device |
-
2010
- 2010-03-05 EP EP10155571.2A patent/EP2365206B1/en not_active Not-in-force
- 2010-03-05 DK DK10155571T patent/DK2365206T3/en active
-
2011
- 2011-02-24 KR KR1020110016594A patent/KR20110101056A/en not_active Application Discontinuation
- 2011-02-28 JP JP2011041848A patent/JP5798762B2/en not_active Expired - Fee Related
- 2011-03-04 CN CN201110052050.0A patent/CN102192063B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246373A1 (en) * | 1986-05-22 | 1987-11-25 | Osamu Matsumura | Fuel injection apparatus |
| WO1993007386A1 (en) * | 1991-10-04 | 1993-04-15 | Man B&W Diesel A/S | A fuel injector for internal combustion engines |
| WO2003006821A1 (en) * | 2001-07-10 | 2003-01-23 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| CN1409001A (en) * | 2001-09-20 | 2003-04-09 | 雅马哈发动机株式会社 | Ejector lay-out structure for fuel jet engine |
| DE10318135A1 (en) * | 2002-04-23 | 2003-11-06 | Denso Corp | Fuel injector for an internal combustion engine comprises a nozzle body having injection holes for the fuel injection and a needle for pushing into the nozzle body for opening and closing the injection holes |
| CN1692224A (en) * | 2002-10-07 | 2005-11-02 | 曼B与W狄赛尔公司 | A nozzle for a fuel valve in a diesel engine, and a method of manufacturing a nozzle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026446A (en) * | 2017-11-01 | 2018-12-18 | 李寿哲 | Use the combustion gas valve nozzle of different materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102192063B (en) | 2017-06-27 |
| JP5798762B2 (en) | 2015-10-21 |
| DK2365206T3 (en) | 2014-05-19 |
| KR20110101056A (en) | 2011-09-15 |
| EP2365206B1 (en) | 2014-04-30 |
| EP2365206A1 (en) | 2011-09-14 |
| JP2011185266A (en) | 2011-09-22 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20180304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |