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.

V engine is an internal combustion engine whose cylinders and pistons are arranged in two separate planes so that when viewed along the axis of the crankshaft, it resembles the letter V.

Such an arrangement of cylinders reduces the overall length and height compared to an in-line engine—the first V engine, built in 1889 by Daimler according to the design of Wilhelm Maybach.

The rain brake support (or RBS in short) is a system of automatic drying of the brake discs, which helps to shorten the braking distance of the car. When driving in the rain, a water film forms on the brake discs, which reduces the effect of the brakes by delaying their onset.

The brake discs must first push out the water film or dry it to achieve the maximum braking effect.