Classification of I.C. Engines

Internal Combustion engines are classified according to: 

• Nature of thermodynamic cycles as:

                   1. Otto cycle engine;
                   2. Diesel cycle engine
                   3. Dual combustion cycle engine 

• Type of the fuel used:

                   1. Petrol engine
                   2. Diesel engine

• Number of strokes as

                   1. Four stroke engine
                   2. Two stroke engine

• Method of ignition as:

                   1. Spark ignition engine, known as SI engine
                   2. Compression ignition engine, known as C.I. engine 

• Number of cylinder as:

                    1. Single cylinder engine
                    2. Multi cylinder engine 

• Position of the cylinder as:

                    1. Horizontal engine
                    2. Vertical engine.
                    3. Vee engine
                    4. In-line engine.
                    5. Opposed cylinder engine 

• Method of cooling as:

                    1. Air cooled engine
                    2. Water cooled engine