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:
Jul. 15, 2025
Filed:
Dec. 17, 2019
Eco Holding 1 Gmbh, Marktheidenfeld, DE;
ECO Holding 1 GmbH, , DE;
Abstract
The invention relates to an electromagnetic proportional valve, preferably for refrigerant, which has the following: an armature of an electromagnet which is arranged so as to be able to be moved axially between an idle position, an activation position and working positions and on which an activation element is arranged; a piston which is constructed as a hollow piston and which has at a first axial end region a first opening toward a supply of the expansion valve and at a second axial end region a second opening toward a pressure compensation space; and a blocking member which is constructed to close the second opening, wherein the piston is arranged so as to be able to be axially displaced and wherein the piston is constructed to block a fluid passage as a blocking element of a main valve device, wherein the fluid passage of the main valve device is blocked in the idle position of the armature, wherein the activation element is constructed to act in the activation position of the armature on the blocking member in such a manner that it releases the second opening at least in regions, and wherein the fluid passage of the main valve device is open in the working positions of the armature. The invention further relates to a system having such a proportional valve.