US 12,188,572 B2
Valve arrangement and method
Thilo Streichert, Stuttgart (DE); and Ulrich Sixt, Waiblingen (DE)
Assigned to Festo SE & Co. KG, Esslingen (DE)
Filed by Festo SE & Co. KG, Esslingen (DE)
Filed on Sep. 20, 2022, as Appl. No. 17/948,441.
Claims priority of application No. 10 2021 210 500.9 (DE), filed on Sep. 21, 2021.
Prior Publication US 2023/0092572 A1, Mar. 23, 2023
Int. Cl. F16K 31/06 (2006.01); F16K 37/00 (2006.01); G01M 3/28 (2006.01)
CPC F16K 31/06 (2013.01) [F16K 37/0091 (2013.01); G01M 3/2876 (2013.01); F16K 37/0083 (2013.01); Y10T 137/8326 (2015.04); Y10T 137/87885 (2015.04)] 19 Claims
OG exemplary drawing
 
1. A valve arrangement for industrial automation, comprising at least one pneumatic valve module with a module housing, the at least one pneumatic valve module having a working port, an electric drive device, and at least one actuator element for setting a valve module output pressure at the working port and/or a flow rate through the working port, wherein the at least one actuator element is arranged in the module housing and is positionable by means of the electric drive device, wherein the valve module further has a valve module pressure sensor for detecting the valve module output pressure, the valve arrangement further comprising a diagnostic device which is configured to provide a diagnostic function on the basis of the detected valve module output pressure, the diagnostic function comprising a failure prognosis of the valve module, a compressed air leakage detection, a compressed air consumption detection and/or a compressed air consumer localization, and
wherein the diagnostic device is configured to calculate the failure prognosis based on drive device current information associated with the electrical drive device.