Pierburg to supply small series to BMW

The task of Pierburg's innovative blower is to feed the hydrogen not consumed during the reaction in the fuel cell back into the stack. The blower thus increases the fuel cell's efficiency and extends its service life. Moreover, by distributing the hydrogen homogeneously in the cell, it enables improved cold-start response. The blower was developed in both a low- and high-voltage version with up to 800 volts.

The project aims to reduce the currently still high manufacturing costs of these systems by using low-cost, space-saving components and a high level of integration. The fuel cell should thus be able to be used instead of combustion engines in the front of passenger cars without detrimental effects on weight or installation space. In view of road-traffic approval, the entire fuel cell system in the vehicle is also subjected to numerous tests. These include crash tests as well as investigations into the safe functioning of hydrogen tanks.

As German government states, background of the project is the fundamental contribution of battery and fuel cell drivelines to the development of sustainable mobility. "We are noticing increasing interest in the market from almost all manufacturers," says also Dr. Michael Becker, Director for Advanced Engineering at Pierburg and coordinator of the company’s fuel cell activities. “This applies, on the one hand, to larger passenger cars and SUVs, and increasingly to commercial vehicles, buses and stationary applications.”