| 摘要 |
<p>Disclosed is a method of operating an internal combustion engine (20) with a fuel injection system (11; 12) including an injector (12) for delivery of a fuel-gas mixture to a combustion chamber (60) of the engine (20). The engine (20) includes a gas supply system (11; 13) pressurised at start-up through a pump-up sequence to a desired pressure for injection of fuel to the engine (20). In the pump-up sequence, the injector (12) is opened allowing pressurised gas to flow from the combustion chamber (60) through the injector (12) and into the gas supply system (11; 13). This pressurises the gas supply system (11; 13) when pressure in the combustion chamber (60) is higher than the pressure in the gas supply system (11; 13). Also disclosed is a method of operating an internal combustion engine comprising a plurality of banks of cylinders with a gas supply system for each bank of cylinders and a pressurised source of gas to supply pressurised gas to each said gas supply wherein, in the event of a failure to supply pressurised gas to each said gas supply system, one said gas supply system is employed in place of said pressurised source to provide at least some of the normal operating requirement of pressurised gas to said other gas supply system.</p> |
