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1. (WO2005062395) ACTUATOR UNIT AND METHOD FOR MANUFACTURING AN ACTUATOR UNIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/062395    International Application No.:    PCT/EP2004/052978
Publication Date: 07.07.2005 International Filing Date: 16.11.2004
IPC:
F02M 51/06 (2006.01), F02M 61/16 (2006.01), F02M 63/00 (2006.01)
Applicants: SIEMENS VDO AUTOMOTIVE SPA [IT/IT]; S.S. 206 - km 28 Loc. Luciana, I-56040 Fauglia/Pisa (IT) (For All Designated States Except US).
D'ARRIGO, Angelo [IT/IT]; (IT) (For US Only)
Inventors: D'ARRIGO, Angelo; (IT)
Common
Representative:
SIEMENS VDO AUTOMOTIVE SPA; Peter Berg, European Patent Attorney, Postfach 22 16 34, I-80506 München (IT)
Priority Data:
03029640.4 22.12.2003 EP
Title (EN) ACTUATOR UNIT AND METHOD FOR MANUFACTURING AN ACTUATOR UNIT
(FR) UNITE D'ACTIONNEMENT ET PROCEDE DE FABRICATION D'UNE UNITE D'ACTIONNEMENT
Abstract: front page image
(EN)An actuator unit comprises a tube spring (32), a piezoelec­tric actuator (31), that is inserted into the tube spring (32), a first cap (33), that is connected to the tube spring (32) at a first free end of the tube spring (32) and which is adjoined by the piezoelectric actuator (31), a tube-shaped body 38, that is connected to the tube spring (32) by joining and is arranged in the area of a second free end (35) of the tube spring (32), and a means for pretensioning, that is sup­ported by the tube-shaped body (38) and pretensions the pie­zoelectric actuator (31). The actuator unit is simple and cheap to manufacture.
(FR)L'invention concerne une unité d'actionnement comprenant un tube-ressort (32), un actionneur piézoélectrique (31), inséré dans ce tube-ressort (32), un premier chapeau (33), relié au tube-ressort (32) au niveau d'une première extrémité libre du tube-ressort (32) et contigu à l'actionneur piézoélectrique (31), un corps tubulaire (38), relié au tube-ressort (32) par assemblage et placé dans la zone d'une seconde extrémité libre (35) du tube-ressort (32), ainsi qu'un moyen de précontrainte, supporté par le corps tubulaire (38) et mettant l'actionneur piézoélectrique (31) en précontrainte. Cette unité d'actionnement est simple et peu coûteuse à fabriquer.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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, HU, IE, IS, IT, LU, MC, NL, 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: English (EN)
Filing Language: English (EN)