Fluid handling method to switch a valve device or to temporarily counteract a flow

US10906041B2 · kind B2 · utility

Assignee

• Hahn-Schickard-Gesellschaft für Angewandte Forschung e. V. · DE

Inventors

• Gregor CZILWIK · Memmingen, DE
• Mark Keller · Aarau, CH
• Nils Paust · Glückstadt, DE
• Tobias HUTZENLAUB · Herbolzheim, DE

Key dates

• Filing date: Nov 5, 2018
• Grant date: Feb 2, 2021
• Expiry date: Nov 5, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K2099/0084
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A fluid handling device has fluidic structures having inlet and outlet chambers and a connecting duct fluidically connecting the two. In a first state, the inlet chamber is completely or partly filled with at least a liquid and partly filled with a compressible medium, and the outlet chamber is at least partly filled with the compressible medium. One of the inlet chamber and the outlet chamber has such a venting duct that a flow resistance/volume product of venting of the chamber for the compressible medium amounts to at least 6700 N·s/m2, the other of the inlet chamber and of the outlet chamber being vented. An actuator for actuating the fluidic structures is to cause a pressure difference of at least 30 Pa between the compressible media within the inlet and outlet chambers, so as to thereby switch a valve device implemented into the connecting duct.