公开(公告)号：US20240209952A1

公开(公告)日：2024-06-27

申请号：US18391151

申请日：2023-12-20

Applicant: Illinois Tool Works Inc.

Inventor： Manuel KELLNER ,  Jan MÜLLIER ,  Timo ROHNER ,  Melanie SINDEL ,  Albert SBONGK

IPC: F16K27/00 ,  F16K15/14 ,  H01M50/325

CPC classification number: F16K27/003 ,  F16K15/148 ,  H01M50/325 ,  H01M2220/20

Abstract: Disclosed is a valve apparatus having a first pressure compensation valve, a first, gas-tight, cap-like membrane device, and a gas-permeable, moisture-permeable, and yet water-impermeable second membrane device. The first pressure compensation valve, in particular a back-pressure valve, having a first valve housing, which limits a pressure compensation opening and comprising a housing side and a covering side, comprising or consisting of a first, gas-tight, cap-like membrane device covering a first pressure compensation opening and releasing the first pressure compensation opening from a predetermined negative pressure prevailing on the housing side in order to enable a pressure compensation between a housing device and an environment, and a gas-permeable, moisture-permeable, and yet water-impermeable second membrane device arranged on the covering side and in series to the first membrane device, covering a second pressure compensation opening and preventing water entry into the valve housing and thus into a housing device.