About 95 results
https://drivepatents.com/patents/951947 · 11 Mar 2015
An outer electrode (17) for a multilayer component (2) comprises a first conductive layer (22) and a second conductive layer (23). The first conductive layer (22) has a connection region (20) in which a lead (18) is bonded to the first conductive layer (22...
https://drivepatents.com/patents/965501 · 31 Dec 2014
The invention relates to a piezoelectric actuator (20) for an arrangement (10) through which a medium flows, having multiple piezoelectric elements (16) and a protective system (35) surrounding the multiple piezoelectric elements (16), wherein the protecti...
https://drivepatents.com/patents/966940 · 26 Nov 2014
A fuel injector including: piezoelectric actuation means, a valve arrangement comprising a nozzle including a valve seat, and a valve needle, said needle adapted to be slidable within said nozzle so as to selectively open and close the valve by respective ...
https://drivepatents.com/patents/972810 · 9 Jul 2014
There are provided a multi-layer piezoelectric element in which an increase of oxygen vacancies in an electric-field concentration part of piezoelectric layers is suppressed and a decrease of an amount of displacement is suppressed, as well as to provide a...
https://drivepatents.com/patents/978223 · 19 Feb 2014
Valve assembly (14) of an injection valve (10), the valve assembly (14) comprising a valve body (20) including a central longitudinal axis (A), the valve body (20) comprising a cavity (24) with a fluid outlet portion (28), a valve needle (22) axially movab...
https://drivepatents.com/patents/980315 · 1 Jan 2014
There are provided a multi-layer piezoelectric element that is driven stably for a long period of time without developing cracks in a junction between a metallized layer and a lead member or a stacked body, and an injection device and a fuel injection syst...
https://drivepatents.com/patents/981589 · 27 Nov 2013
There are provided a multi-layer piezoelectric element which is capable of suppression of occurrence of an imperfect area, suffers from no development of leakage current even with moisture intrusion, has long-term freedom from variations in displacement an...
https://drivepatents.com/patents/984265 · 4 Sep 2013
[Solution] There are provided a multi-layer piezoelectric element which suppresses damage or separation of an external electrode and improves durability, as well as an injection device and a fuel injection system using the multi-layer piezoelectric element...
https://drivepatents.com/patents/989770 · 12 Jun 2013
The subject matter invention is an injection valve (10) comprising a body (13); an actuator region (20); and a piston region (30), characterized by comprising at least one drive member (25) which exists in bedded form at a vicinity of said shell (23) and w...
https://drivepatents.com/patents/985053 · 17 Apr 2013
The valve has a valve sealing surface cooperating with a valve seat (7) for opening and closing an injection opening (10). A pressure chamber (5) is filled with fuel under injection pressure, and hydraulic forces are developed on a valve needle (8) and are...