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. 22, 1990
Filed:
Dec. 28, 1988
Applicant:
Inventors:
Burkhard Brandner, Werdohl, DE;
Klaus Wenzlik, Iserlohn, DE;
Assignee:
Atlas Fahrzeugtechnik GmbH, Werdohl, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B / ; F16K / ; F02M / ;
U.S. Cl.
CPC ...
239584 ; 25112901 ; 310317 ; 310331 ;
Abstract
A fuel injection valve wherein a reciprocable valving element is movable from closed to open position by a piezoceramic moving unit having at least two flexural resonators in the form of laminated packages of metallic carriers, ceramic layers and foil-shaped and/or ring-shaped conductors connected to the poles of an energy source in such a way that energization entails deformation of packages in opposite directions, namely the deformed packages have confronting concave or convex sides. This increases the distance which is covered by the valving element in response to energization of the packages.