The heat transfers within the intake valve differs than the exhaust valves, due to the
difference in the boundary condition surrounding each valve. This paper concerns a …

Increasingly stringent emission standards are changing the conditions that valve systems in
heavy duty engines are exposed to. Increased pressures and temperatures are challenging …

4N austenitic heat-resistant steel is widely used as the material for automobile engine valves
because of its high strength, excellent creep resistance, oxidation resistance and corrosion …

In this paper, the fretting wear properties of 20CrMnTi steel, a common material for a rocker
bracket, was discussed for the first time after it was suffered carburizing treatment …

This study is concerned with the analyses of heat transfer through an exhaust valve
considering the real unsteady effects during the cycle of an internal combustion engine and …

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 …

This paper presents an analysis of six sets of engine valves, each set consisting of one
exhaust valve and one intake valve. Each pair of valves was used in an engine with different …

To improve the efficiency of vehicle engines and reduce greenhouse gas emissions, the
operating temperature tends to increase. Thus, it is very important to evaluate the durability …

The problem of researching mechanisms of wear of valve mechanism parts remains very
relevant due to the need for constant improvement of the design and increase in durability of …

Valve guides are crucial for maintaining the correct alignment, positioning, and clearance of
the valve stem as it moves in the cylinder head. When the guides are heavily worn, the …