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1. (WO2009057540) FUEL INJECTION VALVE AND FUEL INJECTION DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/057540    International Application No.:    PCT/JP2008/069419
Publication Date: 07.05.2009 International Filing Date: 27.10.2008
Chapter 2 Demand Filed:    28.08.2009    
IPC:
F02M 51/06 (2006.01), F02D 35/00 (2006.01), F02M 47/00 (2006.01), F02M 51/00 (2006.01), F02M 61/10 (2006.01)
Applicants: DENSO CORPORATION [JP/JP]; 1-1, Showa-cho, Kariya-shi, Aichi 4488661 (JP) (For All Designated States Except US).
NIPPON SOKEN, INC. [JP/JP]; 14, Iwaya, Shimohasumi-cho, Nishio-city, Aichi 4450012 (JP) (For All Designated States Except US).
KONDO, Jun [JP/JP]; (JP) (For US Only).
TAGUCHI, Tooru [JP/JP]; (JP) (For US Only).
ARIKAWA, Fumiaki [JP/JP]; (JP) (For US Only).
YAMANAKA, Akitoshi [JP/JP]; (JP) (For US Only)
Inventors: KONDO, Jun; (JP).
TAGUCHI, Tooru; (JP).
ARIKAWA, Fumiaki; (JP).
YAMANAKA, Akitoshi; (JP)
Agent: KIKUCHI, Yasuhiro; Yotsuya International Patent Firm Yotsuya Kobayashi Building 6th Floor, 14 Yotsuya 2-chome, Shinjuku-ku Tokyo 1600004 (JP)
Priority Data:
2007-286520 02.11.2007 JP
2007-289072 06.11.2007 JP
2008-037846 19.02.2008 JP
2008-243807 24.09.2008 JP
Title (EN) FUEL INJECTION VALVE AND FUEL INJECTION DEVICE
(FR) SOUPAPE ET DISPOSITIF D'INJECTION DE CARBURANT
(JA) 燃料噴射弁及び燃料噴射装置
Abstract: front page image
(EN)A fuel injection valve has an injector body (4z) having formed in it high-pressure paths (6az, 6bz, 6cz) that allow high-pressure fuel to flow to a nozzle and receiving a piezo actuator (2z)(opening/closing mechanism), a back pressure control mechanism (3z)(opening/closing mechanism), etc. for opening and closing the nozzle; a stem (51z)(deformable body) mounted on the body (4z) and elastically deforming when subjected to the pressure of the high-pressure fuel; and a strain gauge (52z)(sensor element) mounted on the stem (51z) and converting the magnitude of deformation of the stem (51z) into an electric signal and outputting it as a detected pressure value. In the structure above, the strain gauge (52z) is mounted on the stem (51z) formed as a separate body from the body (4z).
(FR)L'invention concerne une soupape d'injection de carburant comprenant un corps d'injecteur (4z) doté de trajets haute pression (6az, 6bz, 6cz) qui permettent l'écoulement d'un carburant haute pression vers une buse et recevant un piézo actionneur (2z) (mécanisme d'ouverture/fermeture), un mécanisme de commande de contre-pression (3z) (mécanisme d'ouverture/fermeture), etc. pour ouvrir et fermer la buse; une tige (51z) (corps déformable) montée sur le corps (4z) et élastiquement déformée lorsqu'elle est soumise à la pression du carburant haute pression; et une jauge de contrainte (52z) (élément détecteur) montée sur la tige (51z), convertissant l'importance de la déformation de la tige (51z) en un signal électrique et le transmettant sous forme d'une valeur de pression détectée. Dans la structure précitée, la jauge de contrainte (52z) est montée sur la tige (51z) sous forme de corps séparé du corps (4z).
(JA) 噴孔へ高圧燃料を流通させる高圧通路6az,6bz,6czを内部に形成するとともに、噴孔を開閉させるためのピエゾアクチュエータ2z(開閉機構)及び背圧制御機構3z(開閉機構)等を収容するインジェクタボディー4zと、前記ボディー4zに取り付けられ、高圧燃料の圧力を受けて弾性変形するステム51z(起歪体)と、ステム51zに取り付けられ、ステム51zにて生じた歪の大きさを電気信号に変換して圧力検出値として出力する歪ゲージ52z(センサ素子)と、を備える。つまり、歪ゲージ52zを、ボディー4zとは別体に構成されたステム51zに取り付ける。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)