FUEL FEEDING AND FLUSHING DEVICE FOR A GAS ENGINE

摘要

The present invention relates to a fuel feeding and cleaning device for gas engines including a gas line (11) and a cleaner line (13) connected to the gas line (11) by a valve unit (15). The gas line (11) is used to provide gaseous fuel (12) for a cylinder of a gas engine at a first operation state of the valve unit (15) and is used to provide gaseous cleaner (14) for a cylinder of a gas line at a second operation state of the valve unit (15). The gas line (11) is a double wall gas line including a main fluid chamber (16) and an auxiliary fluid chamber (17). The valve unit (15) includes a first safety valve (18). The valve is converted between the main fluid chamber (16) of the gas line (11) and the cleaner line (13) to separate the cleaner line (13) from the main fluid chamber (16) of the gas line (11) at the first operation state and to connect the cleaner line (13) to the main fluid chamber (16) of the gas line (11) at the second operation state. The valve unit (15) includes a second safety valve (19). The valve is converted between the cleaner line (13) and the auxiliary chamber (17) of the gas line to connect the cleaner line (13) to the auxiliary fluid chamber (17) of the gas line (11) at the first operation state and to separate the cleaner line (13) from the auxiliary fluid chamber (17) of the gas line at the second operation state.