What are the differences between the 3-cylinder and 4-cylinder engines in the Lynk & Co 03?

[DiEmmett]

3-cylinder and 4-cylinder engines differ in the following aspects: Fuel consumption: The 3-cylinder engine has a smaller displacement and lower fuel consumption, offering more obvious fuel economy; while the 4-cylinder engine has one more cylinder than the 3-cylinder, which may increase fuel consumption to some extent. Balance: The 3-cylinder engine uses a three-throw crankshaft. Without balance measures, it can only achieve static balance but not dynamic balance. This means that the resultant centrifugal force of the mass system equals zero during rotation, but the centrifugal inertia moment does not equal zero. The 4-cylinder engine uses a four-throw planar crankshaft, where not only the resultant centrifugal force equals zero, but the centrifugal inertia moment also equals zero, achieving a balanced state. Internal structure: The 3-cylinder engine has a simpler structure due to fewer cylinders. The 4-cylinder engine, with four cylinders operating in sequence, can provide better power output and cancel out the vibrations from piston movement, resulting in a more complex internal structure.