8/25/2023 0 Comments 4 cycles of a combustion engineIn contrast to Otto cycle, the Diesel cycle does not execute isochoric heat addition. Higher compression ratios can be achieved in Diesel engines than in Otto engines.Therefore the first part of power stroke occurs approximately at the constant pressure. Before the beginning of the power stroke, the injectors start to inject fuel directly into the combustion chamber.Because of the high temperature developed during the adiabatic compression, the fuel spontaneously ignites as it is injected.The diesel engine uses compression ignition instead of spark ignition.Therefore autoignition does not occur in Diesel engines. There is no fuel in the cylinder at the beginning of the compression stroke. ![]() ![]() The Diesel engine is similar in operation to the gasoline engine. The diesel cycle is one of the most common thermodynamic cycles found in automobile engines and describes the functioning of a typical compression ignition piston engine. ![]() In later years Diesel realized his original cycle would not work, and he adopted the constant pressure cycle, which is known as the Diesel cycle. The original cycle proposed by Rudolf Diesel was a constant temperature cycle. In the 1890s, a German inventor, Rudolf Diesel has patented his invention of an efficient, slow-burning, compression ignition, internal combustion engine.
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