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:
Jan. 15, 2019
Filed:
Jun. 26, 2014
Applicant:
Danfoss A/s, Nordborg, DK;
Inventor:
Leo Finn Jensen, Middelfart, DK;
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); F16K 31/40 (2006.01); F16F 1/04 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0655 (2013.01); F16F 1/047 (2013.01); F16K 31/404 (2013.01);
Abstract
A solenoid valve includes a housing, having an inlet and an outlet, wherein the solenoid valve also includes a valve element and a valve seat. To provide a solenoid valve to be used with high maximum operating pressure differences between inlet and outlet, the solenoid valve includes at least one progressive spring, wherein the valve element is forced by the at least one progressive spring. Thereby, the spring force acting on the valve element in the closed position of the valve may be decreased, while still retaining a large spring force in the opened position of the solenoid valve.