Abstract: An air distributor has a connecting pipe and a baffle spaced from the mouth of this pipe while a crown of vanes is disposed between the baffle and the pipe mouth.

Abstract: The invention relates to a suction-mixing head to be used advantageously in each case when by means of high-energy- primary liquid or gas, secondary medium running to the multiple of the primary flowing medium shall be sucked and mixed to the primary flowing medium, to liquid or gas.The suction and mixing head consists of sectional pipe of optionally arched generatrix and of pressure stub connecting thereto. The sectional pipe may be open at both ends or closed at one end and therein deflecting insert may be arranged depending on the application field, which determines the flow path.The suction-mixing head operating at the swirl principle is essentially an injector, under the effect of the vacuum arising in the swirl core of the head the mixing takes place and the mixture discharges parallelly to the axle of the said swirl from the mixing space of the sectional pipe to be developed as a cone.