Daimler Ag

Hans-Joerg Schabel

Andreas Knoop

Cosimo Mazzotta

Thomas Baur

Dietmar Mirsch

Oliver Harr

Werner Englert

Patrick L Padgett

Klaus Scherrbacher

A pump has a shaft, an impeller arranged on the shaft, and a labyrinth seal which is arranged between stationary and moving parts of the pump. A plurality of blades are arranged on the rotor and a labyrinth seal extends at least between the shaft and a rear portion of the blades. A gap in the labyrinth seal is designed such that liquid water can be actively carried away, with the labyrinth seal for this purpose being designed at least in places with a channel in the form of a spiral and/or a staircase. The invention also relates to a fuel cell system having such a pump.

Pump and fuel cell system having a pump

An enclosed separator unit for incorporation into a gas supply device of a fuel cell system, to separate liquid from the gas supply device, includes a separator for separating the liquid. A housing encloses the separator unit which is arranged in a gas spacein the housing and/or is in thermal contact with the gas space. A line system is provided for discharging the liquid from the separator, and at least one fluid dynamically active functional component is arranged in the line system, in the gas space

Enclosed separator unit for a gas supply of a fuel cell system

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Reutlingen, Germany

Hans-Joerg Schabel