
Meet the instructor and explore the course focus on root causes of failure modes in automotive systems, drawing on the instructor's mechanical engineering background and 16 years of industry experience.
Explore how a piston transfers force from expanding gas in the cylinder to the crankshaft via the piston rod and piston rings while preventing gas leakage.
Explore piston failure modes, including fusion from hot-spot ignition and abnormal combustion, with lean mixtures and aluminum alloys, plus mechanical damage like deformation and cracking.
Identify how piston failure modes arise from heavy loading, excessive heat, and cooling or lubrication shortfalls, including melted crowns, abrasion, and skirt seizure due to injector faults and detonation.
Identify how cracks propagate in pistons as a result of inadequate lubrication, thermal gradients, and timing issues, including premature ignition and carbon deposits.
Explore valve failure modes in piston engines, including uneven heat distribution causing circumferential expansion and valve splitting, stem bending from cooling faults, and detonation from carbon deposits, with root-cause analysis.
Analyze valve failure modes and root causes in automotive engines, detailing overheating, burning, distorted orifices, and misalignments that drive combustion gas leakage and piston cooling failures.
Pistons and valves are two of the most important components of the internal combustion engine. These two components undergo severe thermal and mechanical stresses during the Engine operation and driving cycle. Needless to say, the failure rate of the above mentioned two components is quite high when compared to the failure rate of the other components of the engine. For an IC engine engineer it is imperative to know the various modes of the failure of piston and valve and also the root causes of the failures. This course extensively covers various failure modes and the root causes of the same. The course clearly educates the student the fine differences in the various failure modes and the corrective actions that need to be taken.
Automotive engineering: piston and Valve failure analysis is the first course of its kind which elaborately explains the various circumstances in which valve and piston can fail.
Some sample failure modes are piston fusion, Piston pin failure, valve guttering, valve rim splitting, valve rim burning. Some of the root causes are misalignment of the valves, detonation in the combustion chamber, cooling failure in the cooling system, thermostat failure etc. All the above failure modes and root causes will be clearly explained.