20:19 24-03-2026

Porsche's hydrogen system from washer fluid to cut emissions

Porsche patents hydrogen generation from windshield washer fluid to preheat catalytic converters, reducing emissions and extending gasoline engine life under Euro 7 regulations.

Porsche is exploring ways to extend the life of gasoline engines and developing alternative technologies. One solution is a system that can produce hydrogen directly in the vehicle.

According to a patent, hydrogen can be generated from windshield washer fluid through an electrolysis process. The resulting gas is used to preheat the catalytic converter, allowing it to reach operating temperature faster and clean exhaust gases more effectively.

The system involves installing the catalyst directly in the engine and using a separate cylinder for heating. Hydrogen is supplied after the turbocharger through individual injectors for each cylinder, which reduces the risk of ignition in the intake.

This technology is based on principles known since the 19th century but adapted to modern environmental requirements. It can work in combination with gasoline, diesel, and synthetic fuels. The solution aims to meet tightening emission standards, including Euro 7 requirements. However, implementation depends on production costs and real-world effectiveness in reducing harmful emissions.

Overall, this development could impact new cars in 2026, maintaining the relevance of internal combustion engines amid stricter environmental regulations.