INTERNAL COMBUSTION ENGINE THAT CAN ALTERNATIVELY BE DRIVEN WITH DIESEL FUEL OR WITH A BIOLOGICAL FUEL.

摘要

Internal combustion engine, especially spontaneous ignition internal combustion engine, for alternative operation with a very fluid fuel, especially Diesel, and a viscous fuel, especially rapeseed oil, in which an additional tank, which receives very fluid fuel , is connected through a filter installation and a transport installation as well as a main tank, which receives the viscous fuel, is connected through a filter installation and a transport installation by means of feed lines with an installation of common high-pressure pumps and a low-pressure outlet of the high-pressure pump installation is connected through a return duct system to the main tank and to the additional tank, characterized in that on the inlet side of the high pressure pump installation is arranged a first switching valve (5a) , which optionally connects the supply conduit that conducts viscous fuel with the entrance to the installation of high-pressure pumps or with a short-circuit conduit (23) that flows into the main tank (17) and because the supply conduit that conducts fuel Very fluid flows through a check valve (28) at the entrance to the installation of high pressure pumps.