Patent ID: 8126636

Claim:
An internal combustion engine arrangement, comprising: an internal combustion engine that can be operated with a gaseous fuel; a pressure reducer adapted to reduce a gas pressure of the gaseous fuel that is fed to the internal combustion engine; a first gaseous fuel line coupling the pressure reducer in a fluid-conducting manner on a high-pressure side to a gas tank adapted to store the gaseous fuel; a second gaseous fuel line coupling the pressure reducer in the fluid-conducting manner on a low-pressure side to a controllable gas injection valve adapted to regulate a gas flow of the gaseous fuel that is fed to the internal combustion engine; a controllable high-pressure shutoff valve that is arranged on the high-pressure side of the pressure reducer and coupled in the fluid-conducting manner to the pressure reducer and adapted to shut off the gas flow of the gaseous fuel that is fed from the gas tank to the pressure reducer, the controllable high-pressure shutoff valve comprising a pilot valve with a relatively small opening cross-sectional area and a main valve with a relatively large opening cross-sectional area; and an electronic control device that adapted to control the controllable high-pressure shutoff valve and the controllable gas injection valve, wherein, in order to assume operation of the internal combustion engine with the gaseous fuel or during a switchover from liquid fuel mode to gaseous fuel mode in the internal combustion engine that can be operated in a bivalent manner, controlled by the electronic control device, the pilot valve of the controllable high-pressure shutoff valve is opened in a chronological order before the controllable gas injection valve.