JP2014070573A5 - - Google Patents
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- Publication number
- JP2014070573A5 JP2014070573A5 JP2012217532A JP2012217532A JP2014070573A5 JP 2014070573 A5 JP2014070573 A5 JP 2014070573A5 JP 2012217532 A JP2012217532 A JP 2012217532A JP 2012217532 A JP2012217532 A JP 2012217532A JP 2014070573 A5 JP2014070573 A5 JP 2014070573A5
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- retainer
- valve opening
- vertical groove
- increase
- 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
Links
- 239000000446 fuel Substances 0.000 description 12
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 1
Description
固定コア５の中心部には，後部スプリング収容孔１９と，この後部スプリング収容孔１９の後端に連なる，それより大径のリテーナ圧入孔１８とが設けられ，このリテーナ圧入孔１８の内周面に中空部３６ａを有するパイプ状のスプリングリテーナ３６が圧入固定される。このスプリングリテーナ３６には一条のスリット３７が設けられ，これによりスプリングリテーナ３６は弾性的に縮径が可能になっており，このスプリングリテーナ３６の外径は，リテーナ圧入孔１８への圧入代を考慮して，自由状態でリテーナ圧入孔１８の内径より大径に設定される。このスプリングリテーナ３６の前端面により後部スプリング座３５が構成される。
A central portion of the fixed core 5 is provided with a rear spring accommodating hole 19 and a retainer press-fitting hole 18 having a larger diameter connected to the rear end of the rear spring accommodating hole 19. pipe-shaped scan pulling retainer 36 having a hollow portion 36a is press-fitted and fixed to the surface. The spring retainer 36 is provided with a single slit 37, whereby the spring retainer 36 can be elastically reduced in diameter. Considering this, the inner diameter of the retainer press-fitting hole 18 is set larger than the inner diameter in a free state. A rear spring seat 35 is constituted by the front end face of the spring retainer 36.
ノズル孔９，９…が開くと，図示しないガス燃料タンクから燃料分配管Ｄに送られたガス燃料が，燃料入口筒６に流入して燃料フィルタ３８により濾過され，固定コア５及び可動コア１２内の中央燃料通路４９を通過後，連杆１４の縦溝５４と後部の凹部５１とに流入する。縦溝５４に流入したガス燃料は，縦溝５４により直線的に誘導されて弁体１３の内側燃料通路５６に到達し，複数のノズル孔９，９…からエンジンの吸気管Ｅ内へ噴射される。このように，固定コア５及び可動コア１２の中央燃料通路４９と，弁体１３の内側燃料通路５６との間を結ぶ燃料流路は，連杆１４の縦溝５４により直線状の抵抗の少ないものとなる。したがって，弁体１３の開弁ストローク及び開弁時間を増加させることなくノズル孔９からの燃料噴射量を増加させ得て，エンジンの高出力化に応えることができる。また弁体の開弁ストローク及び開弁時間の増加の必要がないことから，コイル，延いては燃料噴射弁の大型化を避けることができ，またコイルの消費電力の増加をも抑えることができる。 When the nozzle holes 9, 9... Are opened, the gas fuel sent from the gas fuel tank (not shown) to the fuel distribution pipe D flows into the fuel inlet cylinder 6 and is filtered by the fuel filter 38, and the fixed core 5 and the movable core 12 After passing through the inner central fuel passage 49, it flows into the longitudinal groove 54 of the linkage 14 and the recess 51 at the rear. The gas fuel flowing into the vertical groove 54 is linearly guided by the vertical groove 54 and reaches the inner fuel passage 56 of the valve body 13 and is injected into the intake pipe E of the engine from the plurality of nozzle holes 9, 9. Is done. As described above, the fuel flow path connecting the central fuel passage 49 of the fixed core 5 and the movable core 12 and the inner fuel passage 56 of the valve body 13 has a small linear resistance due to the vertical groove 54 of the linkage 14. It will be a thing. Therefore, the fuel injection amount from the nozzle hole 9 can be increased without increasing the valve opening stroke and the valve opening time of the valve body 13, and the engine output can be increased. In addition, since there is no need to increase the valve opening stroke and valve opening time, it is possible to avoid an increase in the size of the coil and hence the fuel injection valve, and also to suppress an increase in power consumption of the coil. .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012217532A JP6061074B2 (en) | 2012-09-28 | 2012-09-28 | Fuel injection valve |
| PCT/JP2013/074081 WO2014050504A1 (en) | 2012-09-28 | 2013-09-06 | Fuel injection valve |
| DE112013004803.5T DE112013004803T5 (en) | 2012-09-28 | 2013-09-06 | Fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012217532A JP6061074B2 (en) | 2012-09-28 | 2012-09-28 | Fuel injection valve |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014070573A JP2014070573A (en) | 2014-04-21 |
| JP2014070573A5 true JP2014070573A5 (en) | 2015-12-17 |
| JP6061074B2 JP6061074B2 (en) | 2017-01-18 |
Family
ID=50387912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012217532A Expired - Fee Related JP6061074B2 (en) | 2012-09-28 | 2012-09-28 | Fuel injection valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6061074B2 (en) |
| DE (1) | DE112013004803T5 (en) |
| WO (1) | WO2014050504A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015223043A1 (en) * | 2015-11-23 | 2017-05-24 | Robert Bosch Gmbh | Fuel injector |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2543805C2 (en) * | 1975-10-01 | 1986-05-07 | Robert Bosch Gmbh, 7000 Stuttgart | Electromagnetically actuated injection valve |
| US4342427A (en) * | 1980-07-21 | 1982-08-03 | General Motors Corporation | Electromagnetic fuel injector |
| GB8630686D0 (en) * | 1986-12-23 | 1987-02-04 | Lucas Ind Plc | Fuel injector |
| JP2572596B2 (en) * | 1987-04-30 | 1997-01-16 | ヤンマーディーゼル株式会社 | Fuel injector strainer |
| DE3831196A1 (en) * | 1988-09-14 | 1990-03-22 | Bosch Gmbh Robert | ELECTROMAGNETICALLY ACTUABLE VALVE |
| DE3933331A1 (en) * | 1989-10-06 | 1991-04-11 | Bosch Gmbh Robert | Electromagnetic fuel injection valve for internal combustion engine - has grooves along internal surface of hollow armature conducting fuel from coil space to injection nozzle |
| JPH03106173U (en) * | 1990-02-19 | 1991-11-01 | ||
| JPH048764U (en) * | 1990-05-14 | 1992-01-27 | ||
| DE4018256A1 (en) * | 1990-06-07 | 1991-12-12 | Bosch Gmbh Robert | ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE |
| DE4109868A1 (en) * | 1991-03-26 | 1992-10-01 | Bosch Gmbh Robert | ADJUSTING SOCKET FOR AN ELECTROMAGNETICALLY ACTUABLE VALVE AND METHOD FOR THE PRODUCTION THEREOF |
| DE4141930B4 (en) * | 1991-12-19 | 2007-02-08 | Robert Bosch Gmbh | Electromagnetically actuated injection valve |
| DE4229730A1 (en) * | 1992-09-05 | 1994-03-10 | Bosch Gmbh Robert | Electromagnetically actuated fuel injector |
| JPH08296533A (en) * | 1995-04-26 | 1996-11-12 | Nippon Clean Engine Lab Co Ltd | Fuel injection nozzle and combustion system therefor |
| DE19632196B4 (en) * | 1996-08-09 | 2004-11-04 | Robert Bosch Gmbh | Electromagnetically actuated valve |
| JPH10252605A (en) * | 1997-03-14 | 1998-09-22 | Toyota Autom Loom Works Ltd | Fuel injection nozzle for diesel engine |
| DE19739850A1 (en) * | 1997-09-11 | 1999-03-18 | Bosch Gmbh Robert | Electromagnetically actuated valve |
| DE19855568A1 (en) * | 1998-12-02 | 2000-06-08 | Bosch Gmbh Robert | Fuel injector |
| JP4092526B2 (en) * | 2000-06-19 | 2008-05-28 | 株式会社デンソー | Fuel injection device |
| JP2006057564A (en) * | 2004-08-20 | 2006-03-02 | Aisan Ind Co Ltd | Fuel injection valve |
| JP2006125202A (en) * | 2004-10-26 | 2006-05-18 | Toyota Motor Corp | Fuel injection valve for cylinder direct injection internal combustion engine |
| JP4433313B2 (en) * | 2006-02-07 | 2010-03-17 | 株式会社デンソー | Fuel injection valve |
| JP4505824B2 (en) * | 2005-04-18 | 2010-07-21 | 株式会社デンソー | Fuel injection valve |
| JP4509920B2 (en) * | 2005-12-07 | 2010-07-21 | 愛三工業株式会社 | Fuel injection valve |
| JP2007321677A (en) * | 2006-06-01 | 2007-12-13 | Aisan Ind Co Ltd | Fuel injection valve |
| JP2009019592A (en) * | 2007-07-12 | 2009-01-29 | Aisan Ind Co Ltd | Fuel injection valve |
| JP4897728B2 (en) * | 2008-03-18 | 2012-03-14 | 株式会社ケーヒン | Electromagnetic fuel injection valve |
| JP2010038111A (en) * | 2008-08-07 | 2010-02-18 | Keihin Corp | Solenoid fuel injection valve |
| US9879644B2 (en) * | 2010-04-01 | 2018-01-30 | GM Global Technology Operations LLC | Fuel injector with variable area pintle nozzle |
| JP2011220275A (en) * | 2010-04-13 | 2011-11-04 | Isuzu Motors Ltd | Fuel injection device and internal combustion engine with the same |
| JP5618751B2 (en) * | 2010-10-08 | 2014-11-05 | 株式会社ケーヒン | Gas fuel injection valve |
-
2012
- 2012-09-28 JP JP2012217532A patent/JP6061074B2/en not_active Expired - Fee Related
-
2013
- 2013-09-06 WO PCT/JP2013/074081 patent/WO2014050504A1/en active Application Filing
- 2013-09-06 DE DE112013004803.5T patent/DE112013004803T5/en not_active Withdrawn
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