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:
Dec. 22, 2020
Filed:
Sep. 14, 2016
Continental Automotive Gmbh, Hannover, DE;
Mauro Grandi, Leghorn, IT;
Stefano Filippi, Castel' Anselmo Collesalvetti, IT;
Francesco Lenzi, Leghorn, IT;
Valerio Polidori, Leghorn, IT;
VITESCO TECHNOLOGIES GMBH, Hanover, DE;
Abstract
The present disclosure relates to valves. Some embodiments may include solenoid injection valves with a valve body; a valve needle with a needle shaft, an upper retaining element, and a lower retaining element; an electro-magnetic actuator comprising a pole piece and an armature spaced from the pole piece by a first axial gap when de-energized. The armature slides on the valve needle between the upper retaining element and the lower retaining element. The valve may include a calibration spring and a spring element arranged between the armature and the upper retaining element. The armature compresses the spring element and travels at least 50% of the first axial gap before an opening force of the valve assembly becomes larger than a total needle closing force. An opening force for displacing the valve needle away from the closing position is transferred from the armature to the valve needle completely through the spring element and a second axial gap between the armature and the upper retaining element is maintained throughout the operation of the valve assembly.