JP4134956B2 - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP4134956B2 JP4134956B2 JP2004198435A JP2004198435A JP4134956B2 JP 4134956 B2 JP4134956 B2 JP 4134956B2 JP 2004198435 A JP2004198435 A JP 2004198435A JP 2004198435 A JP2004198435 A JP 2004198435A JP 4134956 B2 JP4134956 B2 JP 4134956B2
- Authority
- JP
- Japan
- Prior art keywords
- movable core
- armature
- fuel
- valve
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 title claims description 82
- 238000002347 injection Methods 0.000 title claims description 40
- 239000007924 injection Substances 0.000 title claims description 40
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000008034 disappearance Effects 0.000 claims description 10
- 235000019589 hardness Nutrition 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000009718 spray deposition Methods 0.000 description 5
- 239000003502 gasoline Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
以下、本発明を適用した他の実施形態を説明する。なお、以下の実施形態においては、第1の実施形態と同じもしくは均等の構成には同一の符号を付し、説明を繰返さない。
第3、第4、第5の実施形態では、第2の実施形態で説明したストッパ部材151に設ける緩衝部材53に代えて、図4、図5、および図6に従って、種々の形状等を提案する。図4は、第3の実施形態に係わる可動コア周りを示す部分的断面図である。図5は、第4の実施形態に係わる可動コア周りを示す部分的断面図である。図6は、第5の実施形態に係わる可動コア周りを示す部分的断面図である。
以上説明した本実施形態において、緩衝部材として、ゴム材、圧縮スプリング等を使用するものとして説明したが、ゴム材に限らず、弾性を有する樹脂材、あるいは所定の弾性力を有する波状座金(ウェーブワッシャ)等のばね部品でもよく、弾性体であればいずれのものであってもよい。
12 弁ボディ
14 弁座
21 噴孔
30 ニードル(弁部材)
31 当接部
40 筒部材
42 第1磁性筒部
44 非磁性筒部
46 第2磁性筒部
50 アーマチャ(可動コア)
51 ストッパ部材
51a 内壁
51b 座面部
54 吸引部材(固定コア)
58 スプリング(付勢部材)
60 コイル
B 弁部
S 電磁駆動部
Claims (3)
- 弁座に着座および離座する弁部材と、
前記弁部材に協働して着座方向および離座方向に移動する可動コアと、
前記可動コアを着座方向に付勢する付勢部材と、
前記可動コアを前記付勢部材の付勢力に抗して磁気吸引する固定コアと、
前記可動コアを前記固定コアに磁気吸引するための電磁力を発生するコイルとを備え、前記電磁力の発生および消失により前記可動コアを前記固定コアに接離する燃料噴射弁において、
前記可動コアは、硬さの異なる二つの部材を有し、
前記可動コアが前記固定コアに吸引されたとき、前記二つの部材のうち、硬さの硬い方のストッパ部材が前記固定コアに当接するとともに、
前記ストッパ部材は、前記付勢部材の座面部を有しており、
前記座面部には、前記可動コアの離座方向に移動するときに発生する前記付勢部材の圧縮反力を受ける緩衝部材が設けられていることを特徴とする燃料噴射弁。 - 前記緩衝部材は、弾性体で形成されていることを特徴とする請求項1に記載の燃料噴射弁。
- 前記ストッパ部材は、前記固定コア側の端部に段差を有しており、
前記座面部は、前記段差で形成されていることを特徴とする請求項1または請求項2に記載の燃料噴射弁。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004198435A JP4134956B2 (ja) | 2004-07-05 | 2004-07-05 | 燃料噴射弁 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004198435A JP4134956B2 (ja) | 2004-07-05 | 2004-07-05 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006017088A JP2006017088A (ja) | 2006-01-19 |
JP4134956B2 true JP4134956B2 (ja) | 2008-08-20 |
Family
ID=35791592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004198435A Expired - Fee Related JP4134956B2 (ja) | 2004-07-05 | 2004-07-05 | 燃料噴射弁 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4134956B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0558191A (ja) * | 1991-09-06 | 1993-03-09 | Ishikawajima Shibaura Mach Co Ltd | 遠隔操縦作業車の変速操作装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5218487B2 (ja) * | 2009-12-04 | 2013-06-26 | 株式会社デンソー | 燃料噴射弁 |
JP2015075049A (ja) * | 2013-10-10 | 2015-04-20 | 株式会社デンソー | 高圧ポンプ |
-
2004
- 2004-07-05 JP JP2004198435A patent/JP4134956B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0558191A (ja) * | 1991-09-06 | 1993-03-09 | Ishikawajima Shibaura Mach Co Ltd | 遠隔操縦作業車の変速操作装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006017088A (ja) | 2006-01-19 |
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