JP4075995B2 - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP4075995B2 JP4075995B2 JP2004078395A JP2004078395A JP4075995B2 JP 4075995 B2 JP4075995 B2 JP 4075995B2 JP 2004078395 A JP2004078395 A JP 2004078395A JP 2004078395 A JP2004078395 A JP 2004078395A JP 4075995 B2 JP4075995 B2 JP 4075995B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- diameter portion
- balance rod
- hole
- fuel
- 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
Links
Images
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Description
2…噴孔
3…ソレノイド
5…ニードル弁
5a…大径部
5b…小径部
6…円錐状先端面
8…弁座
9…ニードル弁案内孔
14a、14b…環状段部
15…サック室
16…バランスロッド受容孔
17…バランスロッド
18…圧力室
19…燃料通路
Claims (1)
- 一端に噴孔を形成し、他端にソレノイドを配置した燃料噴射弁において、ニードル弁が噴孔側に形成された大径部とソレノイド側に形成された小径部からなり、大径部の円錐状先端面が環状をなす弁座に着座可能であり、小径部が噴射弁本体に形成されたニードル弁案内孔内に摺動可能に挿入されると共にソレノイドによって小径部の外端部に駆動力が付与され、大径部の円錐状先端面が弁座に着座したときに弁座外側の円錐状先端面および大径部と小径部間の環状段部に同一圧力の燃料圧が加わると共に弁座内側の円錐状先端面により噴孔に連通するサック室が画定され、大径部内にバランスロッド受容孔が形成されると共に噴射弁本体に対して固定されたバランスロッドがバランスロッド受容孔内に挿入されており、バランスロッド受容孔の噴孔側端部にバランスロッドにより画定された圧力室が形成され、該圧力室が上記サック室に連通しており、弁座の径と、環状段部における小径部の径と、バランスロッド受容孔の径とを等しく形成した燃料噴射弁。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004078395A JP4075995B2 (ja) | 2004-03-18 | 2004-03-18 | 燃料噴射弁 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004078395A JP4075995B2 (ja) | 2004-03-18 | 2004-03-18 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005264822A JP2005264822A (ja) | 2005-09-29 |
JP4075995B2 true JP4075995B2 (ja) | 2008-04-16 |
Family
ID=35089639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004078395A Expired - Fee Related JP4075995B2 (ja) | 2004-03-18 | 2004-03-18 | 燃料噴射弁 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4075995B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011099358A (ja) | 2009-11-04 | 2011-05-19 | Nippon Soken Inc | 燃料噴射弁 |
DE102010030037A1 (de) * | 2010-06-14 | 2011-12-15 | Robert Bosch Gmbh | Einspritzventil |
CN111594368B (zh) * | 2020-04-17 | 2022-01-11 | 莆田市宏业精密机械有限公司 | 一种基于面积补偿制造方法制得的压力平衡喷油嘴 |
-
2004
- 2004-03-18 JP JP2004078395A patent/JP4075995B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005264822A (ja) | 2005-09-29 |
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