EP 1053569 A1 20001122 - PIEZOELECTRIC ACTUATOR
Title (en)
PIEZOELECTRIC ACTUATOR
Title (de)
PIEZOELEKTRISCHER AKTOR
Title (fr)
ACTIONNEUR PIEZOELECTRIQUE
Publication
Application
Priority
- DE 9903873 W 19991203
- DE 19857247 A 19981211
Abstract (en)
[origin: DE19857247C1] The invention relates to a piezoelectric actuator (1), especially for actuating control valves or injection valves of internal combustion engines in motor vehicles. Said actuator comprises a piezoelectric actuator body (1), especially in the form of a multilayered laminate consisting of tiered layers of piezoelectric material and metallic or electro-conductive layers which are arranged therebetween and which serve as electrodes. One of the front surfaces of the actuator body (1) is fixed to an actuator base (6) having good thermal conductibility or being metallic. The piezoelectric actuator is characterised in that at least one heat sink (5; 5.1, 5.2) with good thermal conductibility is connected to the lateral surfaces of the actuator body (1) and to the actuator base (6) in such a way that heat is conducted well.
IPC 1-7
IPC 8 full level
F02M 51/00 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01); H01L 41/053 (2006.01); H01L 41/083 (2006.01); H02N 2/04 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR US)
F02M 51/005 (2013.01 - EP US); F02M 51/0603 (2013.01 - EP US); H10N 30/50 (2023.02 - EP KR US); H10N 30/88 (2023.02 - EP US); F02M 63/0026 (2013.01 - EP US)
Citation (search report)
See references of WO 0036657A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19857247 C1 20000127; EP 1053569 A1 20001122; JP 2002532658 A 20021002; KR 20010040885 A 20010515; US 6333587 B1 20011225; WO 0036657 A1 20000622
DOCDB simple family (application)
DE 19857247 A 19981211; DE 9903873 W 19991203; EP 99964392 A 19991203; JP 2000588814 A 19991203; KR 20007008792 A 20000811; US 62202700 A 20000831