Hydrogen in 'A Class' of its own

Staff
Published: 05 09 2004

The Mercedes-Benz A-Class is not a new vehicle (outside of North America) but patrons at the 2004 Los Angeles Auto Show got a chance to see the coming vehicle in a concept relevant to California.

Hydrogen fuel cell vehicles have been heralded as the automobiles of the future; they're designed to run off hydrogen and emit water vapour as 'exhaust.' Although experts have predicted that it will be at least a decade before we see fuel-cell vehicles on our streets, automakers are currently scrambling to show off their latest fuel cell designs.

The F-Cell vehicle is based on the A-Class model not yet available in the U.S. or Canada, according to a statement released by the company. Power for the vehicle is produced when hydrogen gas and oxygen are combined without combustion to create electric current instead of high heat as in a traditional gasoline combustion engine. Fuel cells are significantly more efficient than combustion engines, according to Mercedes-Benz, and the only exhaust produced is water, which makes a fuel cell vehicle an environmentally -friendly, zero-emissions automobile.

In the F-Cell, the entire fuel-cell system is housed between the bi-level "sandwich" floors of the A-Class, a compact Mercedes-Benz model. As a result, all the cargo- and people-carrying features of the five-passenger car are preserved, according to the automaker. The fuel cell -- actually a stack of PEM membranes -- is supplied by tanks of hydrogen that are compressed to around 5000 pounds per square inch. Its electric motor produces 65 kilowatts, which translates to about 155 ft.-lb. of torque and 87 horsepower.

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