Today's article will focus on a rotary engine with reciprocating piston movement and a rotating crankcase. Since we are talking about a rotary engine with reciprocating piston movement, we will not discuss the Wankel engine, even though it belongs to the group of rotary engines, because its rotary piston revolves around an eccentric shaft.

We will, therefore, be interested in a completely different type of engine, which is a rotary engine, the pistons of which perform a reciprocating movement and whose crankcase rotates (rotates) together with the entire engine.

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.

A multi-shaft engine is a type of piston internal combustion engine equipped with multiple crankshafts. The multi-shaft construction enables the realization of single-piston, two-piston (engine with counter-rotating pistons), and multi-piston engines.

A multi-shaft engine is always equipped with more than one crankshaft. According to the number of shafts, this motor is more precisely called, for example, a two-shaft motor, a three-shaft motor, a four-shaft motor, and so on.

A reciprocating internal combustion engine is a type of combustion engine equipped with a piston, the task of which is to mediate the conversion of thermal energy generated by a chemical reaction into the mechanical work of the engine.

Under the term piston combustion engine, we can imagine a classic engine with reciprocating motion of the piston or a less used engine with a rotary piston and thus the Wankel engine.

Disc brakes are mainly used in cars, but we can also find them on motorbikes or trains. The working part of the disc brake is the disc, which is braked by the pressure of the brake pads.

When the brake pedal is pressed, pressure builds up in the brake system, and brake fluid starts to push the brake piston, which presses on the brake pads. This creates friction and, thus, a braking force that stops or slows down the vehicle.

A two-stroke engine, also referred to as a two-stroke cycle, is a piston combustion engine working in two strokes.

This means that the working cycle of the engine will take place during two strokes of the piston and one revolution of the crankshaft.