Unit and switching film for regulation and control of a fluid pressure

US11409310B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Lukas Bock · Bietigheim-Bissingen, DE
• Volker Kuemmerling · Bietigheim-Bissingen, DE
• Thomas Jessberger · Asperg, DE
• Hoang-Minh Vu · Darmstadt, DE

Key dates

• Filing date: Feb 23, 2021
• Grant date: Aug 9, 2022
• Expiry date: Feb 23, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M2013/0016
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A unit for the regulation for control of a fluid pressure, having at least one housing section and a switching film connected to the at least one housing section. A chemically inert, non-rubber-like PTFEswitching film switching film is disposed in the valve housing and switches at pressure differences of 1 mbar to 250 mbar for regulating, opening or blocking a flow of a fluid from the inlet to the outlet. The switching film is formed of a fluorine and carbon containing polymer material. The switching film has a plate-shaped flat body with a bending region and has a central closure region surrounded by the bending region. The bending region, when switching the switching film, moves the central closure region relative to a valve seat of the valve housing in an axial direction of the plate-shaped flat body toward or away from the valve seat by a stretch free or low-stretch bending movement.