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Pierburg Teams with BMW on Fuel Cell Blower
Integrated system aims to boost efficiency and reduce costs
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To help boost the efficiency of fuel cell systems, Pierburg is developing a recirculation blower to direct unused hydrogen back into the fuel cell stack during vehicle operation.
The company, which is part of Germany’s Rheinmetall Group, is testing the blower as part of an integrated fuel cell system being developed by BMW. The project is part of a two-year development program (FC Komp) funded by the German government.
How It Works
Driven by a brushless motor, the blower is positioned on the anode side of the fuel cell.
Pierburg hydrogen blower (Image: Pierburg)
Any residual hydrogen not consumed during the initial reaction process is sent back into the stack.
Pierburg is developing low- and high-voltage (800 volts) versions of the blower.
Benefits
The improved efficiency can boost the driving range of a fuel cell-powered vehicle and extend the system’s service life, according to the supplier.
By distributing the hydrogen more homogeneously in the cell, the blower also is said to enable improved cold-start response.
The FC Komp program aims to improve the efficiency and packaging of fuel cell systems, while reducing manufacturing costs, through improved integration. Other partners in the program include Germany’s Ministry of Transport, National Organization for Hydrogen and Fuel Cell Technology and the University of Siegen.
In addition to the blower, Pierburg is developing a leak-free control valve and high-voltage coolant pumps for fuel cell systems. All of the components are derived from products Pierburg supplies for conventionally powered vehicles.
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