The Diesel Cycle By Marcus Low What is

The Diesel Cycle By Marcus Low

What is the difference? • The Diesel engine takes in JUST air. • The compression ratio is higher, thus higher efficiency. • Diesel engines use direct fuel injection. • No spark plug required.

Advantages & Disadvantages Advantages • There is no KNOCKING in the diesel engine. • Higher efficiency. • Less expensive Disadvantages • Pollution • Heavy • Initial high cost

Examples of vehicles that use diesel engines • Cars • Trucks • Submarine • Locomotives

Objective • Definition of Diesel Cycle • How the Diesel Cycle Works • Examples of Diesel Engines • Relevance of Diesel Engines Today

History & Definition • 1892, Rudolf Diesel invented the Diesel Engine. • Main goal- High Efficiency • Definition- combustion process of a type of internal combustion engine in which the burning of fuel is triggered by heat generated in compressing fuelair mixture

Internal View of Diesel Engine

Diesel Cycle Diagram

How it Works Comprises of 4 Stages: • Intake: Inlet valve opens, exhaust closed. • Compression: Both valves closed. Piston compresses air upwards. Fuel injected. • Power: Fuel ignites. Gas forces piston downwards. • Exhaust: Inlet valve closed. Exhaust valve opens. Piston travels upward.

References • http: //auto. howstuffworks. com/ diesel 1. htm • http: //en. wikipedia. org/wiki/Die sel_cycle • http: //hyperphysics. phyastr. gsu. edu/hbase/thermo/die sel. html