Cylinder bank

Internal combustion piston engines (those with more than one cylinder) are usually arranged so that the cylinders are in lines parallel to the crankshaft. Where they are in a single line, this is referred to as an inline or straight engine.

Where engines have a large number of cylinders, the cylinders are commonly arranged in two lines, placed at an angle to each other as a vee engine. Each line is referred to as a cylinder bank. The angle between cylinder banks is described as the bank angle.