Robert Boschgmbh

Dirk Schnittger

Wolfgang Braun

Ralph Engelberg

Friedrich Howey

Markus Viereck

Rolf-Peter Essling

Wolfgang Weissgerber

Alexander Wernau

Benedikt Leibssle

Janis Zeiser

Andreas Beiter

The invention relates to a fuel cell system () having a valve () in a valve housing (), the valve () having: a) a drive unit (), b) an elongate rotor () with a first rotor section () and a second rotor section (), the second rotor section () having: I. a first radially circumferential projection (), II. a second radial projection (), which is spaced at a distance (d) from the first radially circumferential projection () and has at least one opening () for the passage of the fluid of the fluid source (), c) a main valve plate () which is movably mounted on the second rotor section () and has a rotor hole ().

Fuel cell system having a valve in a valve housing and a method for controlling a flow of a fluid

The invention relates to a fuel cell system comprising a fuel cell stack () received in a first housing () and an energy supply unit received in a second housing (), the two housings () being connected or being capable of being connected in such a manner that openings () provided in the housings () are opposite one another and overlap, at least in part. According to the invention, an insert (), which surrounds a pin or sleeve-shaped contact element () is arranged in the area of two opposing and at least in part overlapping openings (), wherein the insert () directly, or indirectly via a sealing ring (), encloses the contact element () in a watertight manner and isolates same electrically at least against one of the two housings ().

Fuel cell system

The invention relates to a pressure-controlled shut-off valve () for temporarily interrupting the air supply to a fuel cell stack in a fuel cell system, comprising a valve piston () which can be moved back and forth in a cylindrical housing bore () and which is biased in the direction of a seal seat () by the spring force of a spring (), wherein a connection between an air inlet channel () and an air outlet channel () is produced or interrupted depending on the axial position of the valve piston (). According to the invention, the valve piston () delimits a spring chamber (), which receives the spring () and to which ambient pressure is applied, on one side and a control chamber (), which is connected to the air inlet channel (), on the other side within the housing bore (). The invention additionally relates to a fuel cell system comprising a shut-off valve () according to the invention.

Pressure-controlled shut-off valve for a fuel cell system, and fuel cell system

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Ludwigsburg, Germany

Dirk Schnittger