What are the common cylinder arrangements?

[LaJude]

Common cylinder arrangements: 1. In-line; 2. V-type; 3. W-type; 4. Horizontally opposed; 5. Radial. In-line means 4 or more cylinders are arranged in a straight line on the crankshaft. V-type means the cylinders are divided into two groups, alternately installed on the same crankshaft but at a certain angle to each other. W-type is essentially two sets of V-type engines combined, with an extremely complex structure but more compact and efficient, often seen in top configurations of luxury cars such as Audi and Volkswagen. Horizontally opposed means the cylinders are also divided into two groups but installed opposite each other at 180 degrees on the same crankshaft. Radial means the cylinders are arranged around the crankshaft in a star shape.