A radial engine is a reciprocating internal combustion engine with a single crankshaft, which has cylinders arranged in a circle (in one or more rows) perpendicular to the axis of the crankshaft so that all cylinders make the same angle with each other.

This article will explain how the radial engine works, its use, and a brief history.

OHV timing is a type of piston combustion engine valve timing where the valves are located in the cylinder head, and the camshaft is located in the engine block. The designation of this type of distribution is derived from the English name Overhead Valve.

With this type of distribution, there is a relatively large distance between the camshaft and the valves. In the case of OHV distribution, the valves are therefore operated using metal lifters, lifting rods, and cams from below.

OHC timing is a type of valve timing of a piston combustion engine, in which, in addition to the valves, the camshaft is also located in the cylinder head. The designation of this type of distribution is derived from the English name OverHead Camshaft.

Usually, only a rocker arm is inserted between the camshaft(s) and the valve. Thus, The OHC distribution contains a few components, which reduce inertial forces. The disadvantage of this type of distribution is only the more complicated construction of the cylinder head.

The crankshaft is the mechanical part of a reciprocating internal combustion engine that converts the rectilinear reciprocating motion of the pistons into rotary motion. It is the basic part of the piston combustion engine.

In this article, we will shed light on the function of the crankshaft, what it is made of, and what it must bear.