This book elucidates the concepts and innovative models around prospective developments with respect to internal combustion engine. It talks in detail about the techniques and applications of this technology. Internal combustion engine is a heat engine which transforms chemical energy into mechanical energy. It is used in powered aircrafts, jet engines, turbo engines, helicopters, etc. This text attempts to understand the multiple branches that fall under the discipline of internal combustion engines and how such concepts have practical applications. It is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in this field. The topics covered in this extensive book deal with the core subjects of ICE. This textbook aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.