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:
Aug. 17, 2021
Filed:
Jul. 10, 2018
Siemens Schweiz Ag, Zurich, CH;
Karl-Heinz Petry, Reichenburg, CH;
SIEMENS SCHWEIZ AG, Zurich, CH;
Abstract
A valve assembly may include: a valve body with a fluid path extending between the inlet port and the outlet port; a valve member with a closed position blocking the fluid path and an open position; a sensor the fluid flow; an actuator coupled to the valve member; and a controller for the actuator with a set point value and a default flow rate indicative of nominal flow through the fluid path. The controller may: read the sensor; calculate a flow rate; compare the flow rate to a threshold value indicative of substantially zero flow rate; and if the measure of flow rate is below the threshold value, calculate a position of the valve member directly from the set point value and the default flow rate, produce a control signal from the calculated position, and communicate the control signal to the actuator.