Abstract: An angle piece for fluidically connecting fluid lines of a vehicle. The angle piece has a channel portion for altering a flow direction of a fluid about an alteration angle. An input flow direction of the fluid into the angle piece and an outlet flow direction of the fluid from the angle piece form limbs of the alteration angle. At least one guide element is arranged in the channel portion, which guide element protrudes into the channel portion. The at least one guide element altering the flow direction of a part of the fluid by the alteration angle. The angle piece thus has a low pressure drop.

Abstract: A device for mixing flowable materials, especially relatively viscous liquids and flowable solids, comprises a pipe or tube section, preferably of circular cross section, provided internally with at least one mixing element helically twisted in a uniform manner about the axis of the pipe and formed with only two groups of surface regions which are folded relative to one another and which alternate along the mixing element. Each of these surface regions is of flat triangular outline with a base of the triangle formed along one of the helically twisted longitudinal edges of the mixing element and converging toward the other. The flat surface regions may be truncated, i.e. of generally trapezoidal outline with their narrow triangle side lying along the opposite edge of the mixing element from that occupied by the base, or of a pointed configuration where the triangle apex lies along this opposite side of the mixing element.