Abstract:
An apparatus for mixing additive (A) with liquid. The appa- ratus (1) comprises a vortex channel (2) for receiving liq- uid (L) entering the apparatus. The vortex channel (2) comprisesat least one guide vane (14) arranged to guide the liquid, the guide vane (14) arranged divergently to the longitudinal axis (X) of the vortex channel (2) for creating a main vortex (V) in the liquid (L). The apparatus (1) further comprisesa dispersion channel (4) arranged downstream to the vortex channel (2), the dispersion channel (4) com- prising at least one dispersion vane (18) arranged diver- gently the longitudinal axis (X), the dispersion vane (18) comprising plurality of mini blades (19) arranged perpen- dicular or at least essentially perpendicular to the longitu- dinal axis (X) of the dispersion channel (4). The apparatus (1) also comprisesa bubbling module (5) arranged down- stream to the dispersion channel (4), the bubbling module (5) comprising at least one perforated bubbling wall (24a, 24b, 24c) through which the liquid is arranged to flow, and an ejector module (3, 3a, 3b) for feeding additive (A) into said liquid (L), the ejector module (3) being arranged up- stream of the bubbling module (5).
Abstract:
An exhaust aftertreatment system may include an injector, an aftertreatment device and a mixer assembly. The injector may be configured to inject a fluid into an exhaust passageway that receives exhaust gas from a combustion engine. The aftertreatment device may be disposed in the exhaust passageway downstream of the injector. The mixer assembly may be disposed in the exhaust passageway upstream of the aftertreatment device and may include a first stage having a plurality of parallel plates and a second stage connected to the first stage and disposed downstream of the first stage. The second stage may include an auger blade. The mixer assembly may divide an exhaust stream into at least two flow paths.
Abstract:
A fluid mixing device comprises a tubular structure (30) including an inner wall (32) which defines a channel, the channel having a central longitudinal axis (34) and being configured to convey a fluid in a longitudinal direction along the structure, and a plurality of flow deflection elements (36, 38) which are supported by the structure and located within the channel. Each flow deflection element (36, 38) defines a surface that extends between a first leading edge (40, 42), which extends transversely around a first portion of the inner wall (32) of the hollow tubular structure, and a first trailing edge (44) which is spaced in the longitudinal direction from the first leading edge and extends radially inwardly from the inner wall.
Abstract:
A system which has a static mixer and which contains a dental material. The static mixer has a mixing barrel that extends along a longitudinal axis and, accommodated therein, a cascade of mixing elements. Mixing elements have an outer diameter D of between 1.5 mm and 1.6 mm. The barrel has an inner diameter corresponding to the outer diameter of the mixing elements. The system helps minimizing any residual dental material in the mixer and minimizing forces for extruding the dental material through the mixer.