Abstract: The invention relates to an anti-rotation device of a fuel lance arranged in a bore extending through a cylinder head of a cylinder head from an intake opening until a hole provided for receiving a fuel injector, the lance allowing high-pressure fuel to circulate from an intake opening of the lance until the outlet opening of the lance engaging with the intake opening of the fuel injector, the fuel lance including a nut for being screwed into the intake opening of the bore and a tubular member compressed between the nut and the injector, the lance also including the anti-rotation device. The anti-rotation device is a resilient element which is deformed by rotation of the nut, such as to be blocked between the tubular member and an inner wall of the bore, and thus prevent rotation of the tubular member when the nut is screwed.

Abstract: The invention relates to an anti-rotation device of a fuel lance arranged in a bore extending through a cylinder head of a cylinder head from an intake opening until a hole provided for receiving a fuel injector, the lance allowing high-pressure fuel to circulate from an intake opening of the lance until the outlet opening of the lance engaging with the intake opening of the fuel injector, the fuel lance including a nut for being screwed into the intake opening of the bore and a tubular member compressed between the nut and the injector, the lance also including the anti-rotation device. The anti-rotation device is a resilient element which is deformed by rotation of the nut, such as to be blocked between the tubular member and an inner wall of the bore, and thus prevent rotation of the tubular member when the nut is screwed.

Abstract: A fuel lance assembly for an engine comprises: a fuel lance to be received in a passage provided in a cylinder head and a connection arrangement comprising an inlet adapter for securing the fuel lance within the passage. The fuel lance comprises a tubular member of constant external diameter, arranged to be received, in use, within the passage and having a first end being shaped for cooperation with a seating surface of a fuel injector of the engine, and a second end being shaped for cooperation with the inlet adapter, and being provided with a bore therethrough to define a fuel flow path between the first end and the second end of the fuel lance. The inlet adapter is provided with an attachment system for engaging a compatible attachment system of the cylinder head, and has a proximal region for receiving a high pressure fuel pipe, and wherein the inlet adapter has a distal region provided with an opening being adapted to receive the second end of the fuel lance.

Abstract: A fuel lance assembly for an engine comprises: a fuel lance to be received in a passage provided in a cylinder head and a connection arrangement comprising an inlet adapter for securing the fuel lance within the passage. The fuel lance comprises a tubular member of constant external diameter, arranged to be received, in use, within the passage and having a first end being shaped for cooperation with a seating surface of a fuel injector of the engine, and a second end being shaped for cooperation with the inlet adapter, and being provided with a bore therethrough to define a fuel flow path between the first end and the second end of the fuel lance. The inlet adapter is provided with an attachment system for engaging a compatible attachment system of the cylinder head, and has a proximal region for receiving a high pressure fuel pipe, and wherein the inlet adapter has a distal region provided with an opening being adapted to receive the second end of the fuel lance.