The flow from the inlets (203, 204, 205) combine in a radial flow within the vortex chamber (202) and exit via the outlet (206) which is substantially axial to the vortex chamber.

Reagent may bypass an orifice swirl chamber when the pintle blocks the exit orifice.

An outlet for dispersing droplets of flowable material out of the apparatus is in communication with the vortex chamber.

The opened weir part has a notch for connecting the vortex chamber and the storage space in the connected state.

From the swirl chamber (40), atomizing fuel is dispensed through an outlet orifice (42) in the cap (62).

The vortex chamber (171), being a hollow chamber having a tilted inner wall, is connected with a head flow path (34) eccentrically.

The injector further includes a swirl or vortex chamber (136), to angularly accelerate the fuel, formed in cooperation with the first surface (132) of the valve seat (130).

The passageway directs the pressurized gas to move in a vortex within the vortex chamber and envelope the flowable material.

As the flow entering the vortex chamber impinges on another fluid flow as opposed to a wall of the flowpath the vortex can be used to create a flowpath with reduced erosion.

The side wall of the swirl chamber (12) is configured of a circular tube section (12b) and a circular cone section (12a).

The outer region (74) communicates with an outlet (35) of the fuel passage (34), and the inner region (76) communicates with a swirl chamber (40).

The injector further includes passages (120) within the swirl chamber (136) for assisting in the rapid formation of a conical spray pattern upon the opening of the metering orifice (134).

This is effected by injecting a mixture (7) of the medium and the solid material into a flat swirl chamber.

Such a nozzle has a primary swirl chamber into which the liquid to be sprayed is introduced tangentially to swirl therein.

This effect is achieved through the use of a whirl plate having a plurality of whirl slots surrounding an exit orifice of the injector, which produce a high velocity rotating flow in the whirl chamber.