The invention relates to a fuel pump unit (10) for injecting a fuel (12) into a combustion chamber of an internal combustion engine, with a pump (16) that can be actuated by a pump drive (14), which conveys the fuel (12) as a first injection liquid from a ...

Combustion engine for burning conventional fuel, especially diesel, and Orimulsion (RTM) has a diesel fuel injection system with a pressure source (3) that has two parallel opposing flow paths (20, 21) with non-return valves (23, 24) connected to the fuel ...