Questions and Answers on Automobile Basics
1). What are the advantages and disadvantages of SOHC and DOHC?
The design of DOHC is to make the angle of the valve more suitable for the shape of the combustion chamber, so the overall valve area can be increased, each valve is lighter, the inertial mass is reduced, and the steam inlet efficiency can be improved. On the contrary, SOHC only has one camshaft, which limits the angle of the valve, is basically inert, and is inferior in high-speed operation. However, due to the simple structure, the maintenance cost is cheaper than DOHC.
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