Patent ID: 8813470
Filing Date: 2014-08-26
Classification: F02C,F05D

Abstract:
1. A method for operating a fuel supply for a heat engine and for preventing the supply of fuel and for draining fuel lines located upstream of the combustion process, wherein the fuel supply includes at least one fuel line which leads to a combustion process and along which at least one valve group is arranged, wherein each valve group includes at least one block valve and at least one control valve, wherein the at least one control valve is arranged closer to the combustion process than the block valve, the block valve and at least one control valve delimit a fuel line section, and a vent line having at least one vent valve which branches from the fuel line section and leads to a drainage point, wherein the fuel line section between the block valve and the at least one control valve and the vent line up to the vent valve form a fuel volume (V 1 ), the method comprising: (1) first closing the block valve and the at least one control valve, with the vent valve closed; (2) thereafter, opening the vent valve and draining the fuel volume present in the fuel line section and in the vent line; (3) thereafter, closing the vent valve; (4) thereafter, opening the at least one control valve; (5) thereafter, replenishing the fuel volume (V (6) thereafter, closing the control valve and subsequently opening the vent valve for draining of the fuel volume (V