Advanced direct injection combustion engine technologies and development

 

PREFACE:

Over the last decade, significant progress has been made in the development of  direct  injection  internal  combustion  engines.  It  may  have  been  by coincidence  that  direct  injection  technology  was  developed  and  applied almost simultaneously to spark ignition (SI) gasoline engines and light-duty diesel engines in the mid-1990s, but the direct injection technology had been adopted in both engines for the same reason – to increase the efficiency of internal combustion (IC) engines for automotive applications while improving their performance. However, the route to growth and market penetration has proved more haphazard in the case of direct injection SI engines, owing to relatively  high  cost,  lower  than  expected  gains  in  fuel  economy  and  full load  performance,  their  complexity  and  the  requirement  for  a  lean  NO x aftertreatment system. In comparison, the high-speed direct injection (HSDI) diesel engine has achieved remarkable commercial success due to its excellent fuel economy and good performance characteristics. 

With heightened concern over the greenhouse gas effect, imminent CO2 emission targets in Europe and Japan, and new fleet vehicle fuel consumption requirements  in  the  US,  direct  injection  gasoline  engines  are  staging  a comeback, mainly through downsized boosted operations in the short term and stratified charge and/or controlled autoignited combustion in the medium term. In the meantime, HSDI and heavy-duty (HD) diesel engines are facing the challenge of meeting ever more stringent emission legislation across the globe, but without deteriorating fuel economy. 

It is therefore timely that the state of the art with respect to current direct injection combustion engines and their development needs should be presented and discussed in a single book so that researchers and practising engineers can ‘stand on the shoulders of giants’ in developing future high-efficiency and low-emission combustion engines.

 

One particular strength of this book is its wide-ranging but balanced coverage of the fundamental understanding and applied technologies involved in  DI  combustion  engines  and  the  complementary  contributions  by  both practising engineers and academic researchers. This  book  is  divided  into  two  volumes,  the  first  dealing  with  gasoline and  gas  engines,  and  the  second  discussing  diesel  engines.  

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