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Pub. No.: WO/2003/001049 International Application No.: PCT/EP2002/006678
Publication Date: 03.01.2003 International Filing Date: 18.06.2002
Chapter 2 Demand Filed: 18.12.2002
IPC:
F02D 41/20 (2006.01) ,F02M 47/02 (2006.01) ,F02M 59/46 (2006.01) ,F02M 61/16 (2006.01) ,F02M 63/00 (2006.01) ,F02M 65/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
20
Output circuits, e.g. for controlling currents in command coils
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
47
Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
02
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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44
Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
46
Valves
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61
Fuel injectors not provided for in groups F02M39/-F02M57/94
16
Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02-F02M61/14132
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63
Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
65
Testing fuel-injection apparatus, e.g. testing injection timing
Applicants: REMMELS, Werner[DE/DE]; DE (UsOnly)
SCHNEEMANN, Arne[DE/DE]; DE (UsOnly)
DANCKERT, Bernd[DE/DE]; DE (UsOnly)
MTU FRIEDRICHSHAFEN GMBH[DE/DE]; 88040 Friedrichshafen, DE (AllExceptUS)
Inventors: REMMELS, Werner; DE
SCHNEEMANN, Arne; DE
DANCKERT, Bernd; DE
Priority Data:
101 29 375.520.06.2001DE
Title (EN) INJECTOR COMPRISING A PIEZO ACTUATOR
(FR) INJECTEUR COMPORTANT UN PIEZO-ACTIONNEUR
(DE) INJEKTOR MIT PIEZO-AKTUATOR
Abstract:
(EN) The invention relates to an injector (1) for an internal combustion engine, comprising a piezo-actuator (2). The injector also comprises an identification means which can determine whether or not the piezo-actuator (2) is in contact with a control valve (8) or is opening. Said identification means also comprises a piezoelectric element (3).
(FR) L'invention concerne un injecteur (1) comportant un piézo-actionneur (2) et destiné à un moteur à combustion interne. Cet injecteur comprend en outre un moyen de reconnaissance servant à déterminer si le piézo-actionneur (2) est en contact avec une soupape de commande (8) ou bien s'il est ouvert. Ce moyen de reconnaissance comprend un élément piézo-électrique (3).
(DE) Für eine Brennkraftmaschine wird ein Injektor ( 1) mit Piezo-Aktuator (2) vorgeschlagen. zusätz/ich ist ein Erkennungsmittel zum Erkennen des Anliegens oder Öffnens des Piezo-Aktuators (2) an einem Steuerventil (8) vorgesehen. Das Erkennungsmittel wiederum umfasst ein Piezo-Element (3).
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Designated States: US
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
Publication Language: German (DE)
Filing Language: German (DE)