Abstract: A fuel lance for a burner of a combustor has a fuel lance body defining a fuel flow passage and a liquid fuel tip attached thereto and in flow communication with fuel flow passage. The liquid fuel tip has a fuel outlet and an array of air passages having outlets which are arranged outside a blank sector of a circumference around the fuel outlet, the blank sector defined by an angle from 30° to 160°. A burner includes the fuel lance and the igniter and a main air flow passage to direct at least a part of a main air flow over the fuel lance and over the igniter, the blank sector has a centre-line angled between +120° and ?120° from a radial line from the axis and passing through the fuel lance. A method includes rotating the fuel lance between a start-up condition and a second condition.

Abstract: A fuel lance for a burner of a combustor has a fuel lance body defining a fuel flow passage and a liquid fuel tip attached thereto and in flow communication with fuel flow passage. The liquid fuel tip has a fuel outlet and an array of air passages having outlets which are arranged outside a blank sector of a circumference around the fuel outlet, the blank sector defined by an angle from 30° to 160°. A burner includes the fuel lance and the igniter and a main air flow passage to direct at least a part of a main air flow over the fuel lance and over the igniter, the blank sector has a centre-line angled between +120° and ?120° from a radial line from the axis and passing through the fuel lance. A method includes rotating the fuel lance between a start-up condition and a second condition.

Abstract: A fuel injection for use in a diesel engine and adapted to inject two different fuels sequentially comprises a body including an injection nozzle defining one or more injection orifices, a main fuel supply passage and a pilot fuel supply passage which includes a first non-return valve arranged to prevent fuel flowing in it away from the injection nozzle. The nozzle is controlled by a valve needle which affords a surface directed towards the injection orifice(s) and exposed to a fuel supply gallery. The body contains a cylinder which slidably receives a piston. The main fuel passage communicates with the cylinder adjacent one end thereof and the pilot fuel passage communicates with the cylinder adjacent the other end thereof and with a first outlet passage which communicates with the fuel gallery and includes a second non-return valve arranged to prevent fuel flowing from the fuel gallery into the pilot fuel passage.