Patent · US Active

Switching membrane for a pressure control valve and a pressure control valve

US10408099B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Lukas Bock · Bietigheim-Bissingen, DE
Jens Burkhardt · Freiberg, DE
Volker Kuemmerling · Bietigheim-Bissingen, DE
Thomas Jessberger · Asperg, DE

Key dates

Filing date	Mar 31, 2017
Grant date	Sep 10, 2019
Priority date	—
Expiry date	Apr 30, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M2013/0016
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A switching membrane for a pressure control valve has a plate-shaped flat body with a central area and a bending area surrounding the central area. The central area is provided with a closure area. For switching the switching membrane, the central area can be moved back and forth by a bending movement of the bending area in a direction transverse to an extension of the central area. At least the bending area is made of fluorocarbon rubber. A pressure control valve, especially for crankcase ventilation, is provided with a valve housing that has a housing cover and further is provided with a valve seat. A switching membrane as described above is disposed in the valve housing and switches at pressure differences of at most 500 mbar to release or shut off a flow of fluid at the valve seat.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.