Abstract
In engines valves are essential components for better working of engine. The Intake and exhaust valves are used to control the flow and exchange of gases. These valves seal the working space inside the cylinder against the manifolds and are opened and closed with the valve train mechanism Smooth-running of internal combustion engine is possible because of exhaust valve. Role of the exhaust valve is to pass on the exhaust gases to the exhaust manifold from the combustion chamber. During the operation of internal combustion engine, exhaust valves are subjected to the axial stresses due to exhaust gas pressure, cyclic stresses due to return spring load, thermal stresses due to very high temperature inside the combustion chamber and inertia force arising on the account of valve assembly. This project aims to Design and static -thermal analysis on poppet valve applications of CI engine. Modeling of the valve was done in the Catia and static-thermal analysis was carried out in the ANSYS. In thermal analysis determined, total heat flux and temperature. Here used five materials are Stainless steel, Nimonic 80A, Nimonic 105, Aluminum nitride, Silicon Nitride finally suggested best material for poppet valve on these materials.
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