Sealing diaphragm and check valve having a sealing diaphragm for fluid technology applications

US11530754B2 · kind B2 · utility

Assignee

• Aventics GmbH · DE

Inventors

• Jens Koch · Hannover, DE
• Carsten Ammann · Burgdorf, DE
• Martin Stolper · Bad Zwischenahn, DE

Key dates

• Filing date: Dec 2, 2019
• Grant date: Dec 20, 2022
• Expiry date: Dec 2, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7879
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a sealing diaphragm and a check valve comprising a sealing diaphragm for fluid technology applications. A sealing diaphragm for fluid technology applications is to be provided, which is economical and constructionally simple to produce, which can be used as a closing means for a check valve and with which unwanted interfering noise can be prevented during operation. The object of the disclosure is achieved by a sealing diaphragm with a flat, flexible sealing section, which can be bent or curved with a fluid pressure, wherein at least one resilient frictional tooth is provided on or next to the surface of the sealing section at a distance from an edge of the sealing section, designed and arranged in such a way that it forms an angle between 30° and 150° with the sealing section and it tilts together with the bending or curving movement of the flat sealing section, wherein the frictional tooth has a contact surface on a side orientated in the tilting direction. The object of the disclosure is also achieved by a check valve for fluid technology outlet openings, comprising a housing part having a fluid outlet, wherein an above-mentioned sealing diaphragm is ar…