JP2020016243A5 - - Google Patents
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- JP2020016243A5 JP2020016243A5 JP2019193208A JP2019193208A JP2020016243A5 JP 2020016243 A5 JP2020016243 A5 JP 2020016243A5 JP 2019193208 A JP2019193208 A JP 2019193208A JP 2019193208 A JP2019193208 A JP 2019193208A JP 2020016243 A5 JP2020016243 A5 JP 2020016243A5
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection hole
- side wall
- extension line
- 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.)
- Granted
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- 239000000446 fuel Substances 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 230000002093 peripheral Effects 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
Description
上記目的を達成するために、本発明の燃料噴射弁は、
弁体が接離する弁座の下流側に設けられた燃料噴射孔と、前記燃料噴射孔の入口が底面に開口し前記底面の周囲が内周壁によって囲まれ前記入口の周囲に燃料の旋回流路が形成された旋回室と、一方の側壁が前記内周壁の旋回燃料の流れ方向における上流側に接続され他方の側壁が前記内周壁の下流側に接続されて前記内周壁に開口し前記旋回室に燃料を供給する横方向通路と、を備え、前記燃料噴射孔、前記旋回室及び前記横方向通路が複数形成される燃料噴射弁において、
前記横方向通路の前記一方の側壁に接するように前記一方の側壁に沿って延長した第一延長線と、前記横方向通路の前記他方の側壁に接するように前記他方の側壁に沿って延長した第二延長線と、を仮想し、前記ノズルプレートの中心、前記燃料噴射孔の入口開口、前記旋回室、前記横方向通路、前記第一延長線及び前記第二延長線を当該燃料噴射弁の中心軸線に垂直な平面に投影した投影図上において、
前記燃料噴射孔の前記入口開口は、前記第二延長線を越えて前記一方の側壁又は前記第一延長線の側に位置する入口開口部分を有し、
前記燃料噴射孔は、当該燃料噴射孔の縦断面上における内周壁が平行に形成されている。
In order to achieve the above object, a fuel injection valve of the present invention
A fuel injection hole provided on a downstream side of a valve seat with which the valve body comes and goes, an inlet of the fuel injection hole is opened at a bottom surface, a periphery of the bottom surface is surrounded by an inner peripheral wall, and a swirling flow of fuel flows around the entrance. A swirl chamber in which a path is formed, and one side wall is connected to an upstream side of the inner peripheral wall in a flow direction of the swirling fuel, and the other side wall is connected to a downstream side of the inner peripheral wall to open to the inner peripheral wall, and the swirl is formed. and a transverse passage for supplying fuel to the chamber, the fuel injection hole, in the swirl chamber and the injector lateral passage Ru formed with a plurality,
A first extension line extending along the one side wall so as to contact the one side wall of the lateral passage, and extending along the other side wall so as to contact the other side wall of the lateral passage The second extension line is imagined, and the center of the nozzle plate, the inlet opening of the fuel injection hole, the swirl chamber, the lateral passage, the first extension line and the second extension line are defined by the fuel injection valve. On the projection projected on a plane perpendicular to the central axis,
The inlet opening of the fuel injection hole has an inlet opening portion located on the side of the one side wall or the first extension line beyond the second extension line,
The fuel injection holes, that the inner wall on the longitudinal surface of the fuel injection holes are formed in parallel.
Claims (2)
前記横方向通路の前記一方の側壁に接するように前記一方の側壁に沿って延長した第一延長線と、前記横方向通路の前記他方の側壁に接するように前記他方の側壁に沿って延長した第二延長線と、を仮想し、前記燃料噴射孔の入口開口、前記旋回室、前記横方向通路、前記第一延長線及び前記第二延長線を当該燃料噴射弁の中心軸線に垂直な平面に投影した投影図上において、
前記燃料噴射孔の前記入口開口は、前記第二延長線を越えて前記一方の側壁又は前記第一延長線の側に位置する入口開口部分を有し、
前記燃料噴射孔は、当該燃料噴射孔の縦断面上における内周壁が平行に形成されていることを特徴とする燃料噴射弁。 A fuel injection hole provided on a downstream side of a valve seat with which the valve body comes and goes, an inlet of the fuel injection hole is opened at a bottom surface, a periphery of the bottom surface is surrounded by an inner peripheral wall, and a swirling flow of fuel flows around the entrance. A swirl chamber in which a path is formed, and one side wall is connected to an upstream side of the inner peripheral wall in a flow direction of the swirling fuel, and the other side wall is connected to a downstream side of the inner peripheral wall to open to the inner peripheral wall, and the swirl is formed. and a transverse passage for supplying fuel to the chamber, the fuel injection hole, in the swirl chamber and the injector lateral passage Ru formed with a plurality,
A first extension line extending along the one side wall so as to contact the one side wall of the lateral passage, and extending along the other side wall so as to contact the other side wall of the lateral passage A second extension line, a plane perpendicular to a central axis of the fuel injection valve, the entrance opening of the fuel injection hole, the swirl chamber, the lateral passage, the first extension line and the second extension line On the projection projected on
The inlet opening of the fuel injection hole has an inlet opening portion located on the side of the one side wall or the first extension line beyond the second extension line,
The fuel injection hole, the fuel injection valve inner circumferential wall on the longitudinal surface of the fuel injection hole is characterized that you have formed in parallel.
前記燃料噴射孔は、当該燃料噴射弁の中心軸線に沿う方向に形成されていることを特徴とする燃料噴射弁。 The fuel injection valve according to claim 1,
The fuel injection valve is characterized in that the fuel injection hole is formed in a direction along a central axis of the fuel injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019193208A JP6979993B2 (en) | 2018-08-02 | 2019-10-24 | Fuel injection valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018145496A JP6609009B2 (en) | 2018-08-02 | 2018-08-02 | Fuel injection valve |
| JP2019193208A JP6979993B2 (en) | 2018-08-02 | 2019-10-24 | Fuel injection valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018145496A Division JP6609009B2 (en) | 2018-08-02 | 2018-08-02 | Fuel injection valve |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020016243A JP2020016243A (en) | 2020-01-30 |
| JP2020016243A5 true JP2020016243A5 (en) | 2020-03-12 |
| JP6979993B2 JP6979993B2 (en) | 2021-12-15 |
Family
ID=79190999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019193208A Active JP6979993B2 (en) | 2018-08-02 | 2019-10-24 | Fuel injection valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6979993B2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405945B1 (en) * | 2000-09-06 | 2002-06-18 | Visteon Global Tech., Inc. | Nozzle for a fuel injector |
| DE10048935A1 (en) * | 2000-10-04 | 2002-04-11 | Bosch Gmbh Robert | Fuel injector |
| US6783085B2 (en) * | 2002-01-31 | 2004-08-31 | Visteon Global Technologies, Inc. | Fuel injector swirl nozzle assembly |
| JP5089722B2 (en) * | 2010-03-24 | 2012-12-05 | 三菱電機株式会社 | Fuel injection valve and fuel injection system |
| JP5492131B2 (en) * | 2011-03-31 | 2014-05-14 | 日立オートモティブシステムズ株式会社 | Fuel injection valve |
| DE102012211665A1 (en) * | 2011-08-18 | 2013-02-21 | Robert Bosch Gmbh | Valve for a flowing fluid |
| JP5877768B2 (en) * | 2012-08-03 | 2016-03-08 | 日立オートモティブシステムズ株式会社 | Fuel injection valve |
-
2019
- 2019-10-24 JP JP2019193208A patent/JP6979993B2/en active Active
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