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.

Valvetronic is a designation for BMW engines equipped with a variable valve lift system. It is a system that, combined with variable valve timing, allows changing the position of the camshaft independently of the position of the crankshaft. It can also change the lift and length of time the valve is open.

This technology is used to optimize engine parameters. Thanks to the Valvetronic system, engines achieve higher performance, lower fuel consumption, and lower emissions.

An internal combustion engine is a heat engine that generates thermal energy by burning fuel. It subsequently converts this energy into mechanical work or a reaction effect.

The term internal combustion engine is usually understood as a piston internal combustion engine, but this is incorrect, as an internal combustion engine does not always have to be only a piston internal combustion engine.

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.

A reaction engine is a type of combustion engine that uses the reactive effect of the substance exiting the engine to move it in the opposite direction (law of action and reaction).

This article will briefly examine how a reaction engine works, its history, and possible types.

A rocket engine is a type of reactive engine that is not affected by the external environment, thanks to the fact that it carries fuel and an oxidizer in its reservoir.

This article will briefly examine how a rocket engine works, its history, and possible types.