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. 31, 2022
Filed:
Apr. 19, 2018
Eto Magnetic Gmbh, Stockach, DE;
Michael Feindler, Stockach, DE;
Marcin Nieweglowski, Wroclaw, PL;
ETO Magnetic GmbH, Stockach, DE;
Abstract
A proportional spool valve () for adjusting a displaced volume of a displacement pump, in particular of an oil pump in a motor vehicle, the proportional spool valve () includes a valve housing () and a valve spool () which is mounted in the valve housing () and displaceable along a displacement axis (V) and which can be displaced against the spring force of a valve spring () axially supported on a spring holder () which is fixed relative to the valve housing () by energizing an electrical coil assembly (), characterized in that wherein both the preferably single-piece spring holder () and the valve housing () are made of plastic and that the spring holder () is welded to the valve housing (), an integral welded connection () being formed.