精选优质文档-倾情为你奉上Lesson 1 HOW DOES A MARINE DIESEL ENGINE WORK? The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it into hot, high pressure air in a combustion chamber. The marine diesel engine is a type of diesel engine used on ships. The principle of its operation is as follows: A charge of fresh air is drawn or pumped into the engine cylinder and then compressed by the moving piston to very high pressure. When the air is co