A brief introduction to DUAP, a Swiss developer and manufacturer of fuel injection solutions for large engines with customers around the world. See video on youtube
Insight
DUAP hardening shop
Our department head, Philipp Dambach, gives a tour of the DUAP hardening shop, a facility that is also available to external industrial customers for the hardening of their steel parts (in German, with English subtitles).
Insight
Our latest blog now up: Hydrogen Direct Injection
DUAP's blog launched early this year. The first topic "fuels in transition" offered insights into the industrie's works for moving away from loaded HFO and Diesel fuels. The 2nd issue picked up on the current debate about natural gas and LNG. The latest issue reads about the challenging use of hydrogen in large combustion engines. Enjoy! Go to DUAP blog
Upcoming
14. Dessauer Gasengine Conference
Gas engines remain colorful! This is the motto for this year's Gas Engine Conference. Dual fuel, hydrogen, methanol, and ammonia were the hot topics at the conference from May 6 to 7, 2026, in Dessau. Read more
The Swiss consul general in Shanghai visiting the DUAP booth which was gaining great attention by customers thanks to the innovative solutions presented.
Inaugurated on November 25
Heribert Geisser Square at the heart of our company
November 25, 2025: “No one can do it alone, only the community can do it.” With these words, our patron, Heribert Geisser, who is over 90 years old, unveiled the sign dedicated to him yesterday on his 40th anniversary with the company. And DUAP, which he saved 40 years ago, continues to develop every day, thanks to the vision of our patron also, Heribert Geisser.
