FUEL CELL AIR SUPPLY

摘要

The air supply device has a low-pressure compressor (14) coupled on the low pressure side to an electric motor (11) in series with a high-pressure compressor (16) having a turbine (17) in the form of a free-running rotor (30), connected to the exit pipe (24) of the fuel cell (10), for energy recovery. Also included are Independent claims for the following: (a) a low-pressure compressor and an electric motor for a fuel cell air supply; (b) a high- pressure compressor and a rotor bearing for a fuel cell air supply; (c) a bearing for a low-pressure compressor or free-running rotor; (d) a regulation method for an air supply device for a fuel cell