JP2010249102A - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP2010249102A JP2010249102A JP2009102281A JP2009102281A JP2010249102A JP 2010249102 A JP2010249102 A JP 2010249102A JP 2009102281 A JP2009102281 A JP 2009102281A JP 2009102281 A JP2009102281 A JP 2009102281A JP 2010249102 A JP2010249102 A JP 2010249102A
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- passage
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- main body
- sensor
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- 239000000446 fuel Substances 0.000 title claims abstract description 129
- 238000002347 injection Methods 0.000 title claims abstract description 67
- 239000007924 injection Substances 0.000 title claims abstract description 67
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 16
- 238000005553 drilling Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
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- 238000003754 machining Methods 0.000 description 5
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- 229920005989 resin Polymers 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
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- 238000005728 strengthening Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/005—Fuel-injectors combined or associated with other devices the devices being sensors
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/24—Fuel-injection apparatus with sensors
- F02M2200/247—Pressure sensors
Abstract
【解決手段】本体ボデー40の内部には、高圧燃料の供給口421aから噴孔へ向けて高圧燃料を流通させる高圧通路421,422、及び高圧通路421から分岐して燃圧センサ80へ高圧燃料を導くセンサ通路46が形成され、前記高圧通路421,422は、供給口421aから本体ボデー40の径方向に延びる第1通路421、及び第1通路421の下流端部から噴孔へ向けて軸方向に延びる第2通路422を備えて構成される。そして、本体ボデー40の円柱側面のうち供給口421aの反対側に燃圧センサ80を配置するとともに、第1通路421の下流端部から第1通路421の延長線上に延びるようセンサ通路46を形成したことを特徴とする。
【選択図】 図2
Description
図1は燃料噴射弁10の全体断面図、図2は図1の拡大図である。燃料噴射弁10は、エンジンのシリンダヘッドE2に挿入搭載され、コモンレールから供給される燃料をエンジンの各気筒の燃焼室E1へ直接噴射するものである。
上記第1実施形態では、ステム81を本体ボデー40と別体に形成するのに対し、図5に示す本実施形態では、ステム81を廃止して、歪ゲージ82を本体ボデー40に直接取り付けている。
本発明は上記実施形態の記載内容に限定されず、以下のように変更して実施してもよい。また、各実施形態の特徴的構成をそれぞれ任意に組み合わせるようにしてもよい。
Claims (3)
- 内燃機関のシリンダヘッドに挿入配置され、高圧燃料を噴射する噴孔が形成されたノズルボデーと、
前記挿入の方向に延びる円柱形状であり、円柱側面に高圧燃料の供給口が形成された本体ボデーと、
前記本体ボデーの円柱側面に取り付けられ、高圧燃料の圧力を検出する燃圧センサと、
を備え、
前記本体ボデーの内部には、前記供給口から前記噴孔へ向けて高圧燃料を流通させる高圧通路、及び前記高圧通路から分岐して前記燃圧センサへ高圧燃料を導くセンサ通路が形成され、
前記高圧通路は、前記供給口から前記本体ボデーの円柱径方向に延びる第1通路、及び前記第1通路の下流端部から前記噴孔へ向けて前記挿入の方向に延びる第2通路を備えて構成され、
前記本体ボデーの円柱側面のうち前記供給口の反対側に前記燃圧センサを配置するとともに、前記第1通路の下流端部から前記第1通路の延長線上に延びるよう前記センサ通路を形成したことを特徴とする燃料噴射弁。 - 前記第1通路のうち前記第2通路が接続される部分の直径を、前記第2通路の直径より大きくしたことを特徴とする請求項1に記載の燃料噴射弁。
- 前記本体ボデーのうち反噴孔側の円柱端面に、高圧燃料の余剰分を排出する排出口が形成されていることを特徴とする請求項1又は2に記載の燃料噴射弁。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009102281A JP5262948B2 (ja) | 2009-04-20 | 2009-04-20 | 燃料噴射弁 |
DE102010016420.8A DE102010016420B4 (de) | 2009-04-20 | 2010-04-13 | Injektor |
CN2010101647932A CN101865061B (zh) | 2009-04-20 | 2010-04-19 | 喷射器 |
US12/763,523 US8474734B2 (en) | 2009-04-20 | 2010-04-20 | Injector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009102281A JP5262948B2 (ja) | 2009-04-20 | 2009-04-20 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010249102A true JP2010249102A (ja) | 2010-11-04 |
JP5262948B2 JP5262948B2 (ja) | 2013-08-14 |
Family
ID=42751241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009102281A Expired - Fee Related JP5262948B2 (ja) | 2009-04-20 | 2009-04-20 | 燃料噴射弁 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8474734B2 (ja) |
JP (1) | JP5262948B2 (ja) |
CN (1) | CN101865061B (ja) |
DE (1) | DE102010016420B4 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021025474A (ja) * | 2019-08-06 | 2021-02-22 | 株式会社デンソー | 燃料噴射弁 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5383132B2 (ja) * | 2008-03-28 | 2014-01-08 | 株式会社デンソー | 燃圧センサ搭載構造、燃圧検出システム、燃料噴射装置、それに用いられる圧力検出装置及び蓄圧式燃料噴射装置システム |
JP5120318B2 (ja) * | 2009-04-03 | 2013-01-16 | 株式会社デンソー | 燃料噴射弁 |
JP5154495B2 (ja) * | 2009-04-03 | 2013-02-27 | 株式会社日本自動車部品総合研究所 | 燃料噴射弁及び燃料噴射弁の内部電気接続方法 |
DE102017218869A1 (de) * | 2017-10-23 | 2019-04-25 | Robert Bosch Gmbh | Injektor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54129227A (en) * | 1978-03-30 | 1979-10-06 | Agency Of Ind Science & Technol | Diesel engine fuel injection timing detector |
JPS56118553A (en) * | 1980-02-22 | 1981-09-17 | Toyota Motor Corp | Fuel injection time detection device for diesel engine |
JPH11324870A (ja) * | 1998-05-14 | 1999-11-26 | Zexel:Kk | 可変噴孔型燃料噴射装置の噴孔開度補正方法および噴孔開度補正機構 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA812712B (en) | 1980-04-30 | 1982-06-30 | Britax Wingard Ltd | Passive safety belt system |
US4373671A (en) * | 1981-04-13 | 1983-02-15 | Ford Motor Company | Electromagnetic fuel injector |
JP3882597B2 (ja) * | 2001-11-30 | 2007-02-21 | 株式会社デンソー | 燃料噴射弁 |
US6598591B2 (en) * | 2001-12-18 | 2003-07-29 | Caterpillar Inc | Measuring check motion through pressure sensing |
DE102005024194A1 (de) * | 2005-05-25 | 2006-11-30 | Siemens Ag | Einspritzventil und Einspritzvorrichtung für eine Brennkraftmaschine und Brennkraftmaschine |
JP4840288B2 (ja) | 2006-11-14 | 2011-12-21 | 株式会社デンソー | 燃料噴射装置及びその調整方法 |
JP4501975B2 (ja) | 2007-08-31 | 2010-07-14 | 株式会社デンソー | 燃料噴射装置及び燃料噴射装置の製造方法 |
JP4462307B2 (ja) | 2007-08-31 | 2010-05-12 | 株式会社デンソー | 燃料噴射装置及び燃料噴射システム |
JP5079643B2 (ja) | 2007-11-02 | 2012-11-21 | 株式会社デンソー | 燃料噴射弁及び燃料噴射装置 |
US7896257B2 (en) * | 2008-02-16 | 2011-03-01 | Mi Yan | Fuel injector with real-time feedback control |
JP5220674B2 (ja) | 2009-04-03 | 2013-06-26 | 株式会社デンソー | 燃料噴射弁及び燃料噴射弁の内部電気接続方法 |
JP5120318B2 (ja) | 2009-04-03 | 2013-01-16 | 株式会社デンソー | 燃料噴射弁 |
-
2009
- 2009-04-20 JP JP2009102281A patent/JP5262948B2/ja not_active Expired - Fee Related
-
2010
- 2010-04-13 DE DE102010016420.8A patent/DE102010016420B4/de not_active Expired - Fee Related
- 2010-04-19 CN CN2010101647932A patent/CN101865061B/zh not_active Expired - Fee Related
- 2010-04-20 US US12/763,523 patent/US8474734B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54129227A (en) * | 1978-03-30 | 1979-10-06 | Agency Of Ind Science & Technol | Diesel engine fuel injection timing detector |
JPS56118553A (en) * | 1980-02-22 | 1981-09-17 | Toyota Motor Corp | Fuel injection time detection device for diesel engine |
JPH11324870A (ja) * | 1998-05-14 | 1999-11-26 | Zexel:Kk | 可変噴孔型燃料噴射装置の噴孔開度補正方法および噴孔開度補正機構 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021025474A (ja) * | 2019-08-06 | 2021-02-22 | 株式会社デンソー | 燃料噴射弁 |
JP7293959B2 (ja) | 2019-08-06 | 2023-06-20 | 株式会社デンソー | 燃料噴射弁 |
Also Published As
Publication number | Publication date |
---|---|
CN101865061A (zh) | 2010-10-20 |
CN101865061B (zh) | 2012-07-18 |
US20100264239A1 (en) | 2010-10-21 |
JP5262948B2 (ja) | 2013-08-14 |
US8474734B2 (en) | 2013-07-02 |
DE102010016420A1 (de) | 2010-10-21 |
DE102010016420B4 (de) | 2019-12-19 |
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