The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Jun. 06, 2006
Christian Hauser, Regensburg, DE;
Klaus Kiel, Regensburg, DE;
Manfred Kramel, Regensburg, DE;
Heinz Lixl, Regensburg, DE;
Gabriel Marzahn, Lappersdorf, DE;
Walter Schrod, Regensburg, DE;
Christian Hauser, Regensburg, DE;
Klaus Kiel, Regensburg, DE;
Manfred Kramel, Regensburg, DE;
Heinz Lixl, Regensburg, DE;
Gabriel Marzahn, Lappersdorf, DE;
Walter Schrod, Regensburg, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
A tendency of the controlled load to oscillate when controlling a capacitive load can be avoided according to a piezo actuator for an injection valve of an internal combustion engine, having charging and discharging processes for charging and discharging the capacitive load by means of a load current, each loading process being effected by chronological partial load current pulses according to chronological partial charging capacity pulses (p, p, . . . pn), wherein the envelope (E) of the partial charging capacity pulses (p, p, . . . pn), during the loading process, increases in a strictly monotonous manner in an initial phase, and the slope of the envelope decreases in a monotonous manner.