Abstract
The advantages of a high-speed direct injection diesel over an indirect injection engine are well established. In the last decade many studies have been presented which suggest that most of the technical issues preventing operation at high speed have been overcome. The new Ford 2.5 litre engine introduces a first generation of production high-speed direct injection engines. Based on controlled high swirl air management, combined with high rates of fuel injection, the engine produces 52 kW at 4000 r/min. Initial installation of the 2.5 litre high-speed direct injection engine is in the Ford Transit range of vehicles where 25 per cent fuel economy improvements over its predecessor, the York 2.36 litre indirect injection engine, have been achieved. Designed to meet the demands of modern vehicle application, the engine includes many features to improve reliability and durability. This paper describes the engine systems and components of the engine, together with the key aspects of the performance development with specific reference to the actions employed to control noise.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering
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