Cylinder arrangement
For multi-cylinder engines, the arrangement of the cylinders determines the shape of the engine, which also affects the stiffness and strength of the engine block and is related to the overall layout of the car. Automobile engine cylinder arrangement basically has the following three forms:
Inline engine
The cylinders of the engine are arranged in a row, generally vertically. However, in order to reduce the height of the engine, the cylinders are sometimes arranged to be inclined or even horizontal. The single-row cylinder block has a simple structure and is easy to process, but the engine length and height are large. Generally, the engine below six cylinders is mostly single-row type. For example, engines used in Jetta cars, Fukang cars, and red flag cars use this in-line cylinder block.
V-type engine
The cylinders are arranged in two rows, and the angle between the left and right cylinder center lines is γ<180°, which is called V-type engine. Compared with the in-line engine, the V-type engine shortens the length and height of the body, increases the rigidity of the cylinder block, and reduces the rigidity. The weight of the engine, but the width of the engine is increased, the shape is more complicated, and the processing is difficult. Generally, it is used for an engine of more than 8 cylinders, and the 6-cylinder engine also has a cylinder block of this type.
Opposed engine
The cylinders are arranged in two rows, and the angle between the center lines of the left and right cylinders is γ=180°.