Abstract: A duct in which a fluid can be conducted is bound by duct walls, wherein the duct walls have an inlet opening and an outlet opening through which the fluid can enter the duct and exit the duct. The fluid has a flow velocity which is smaller along the duct walls than at the duct middle, so that a zone of higher flow velocity and a zone of lower flow velocity can be formed in the duct. A flow guide surface is arranged in the duct by means of which a portion of the fluid can be taken from the zone of higher flow velocity and can be mixed into the zone of lower flow velocity.

Abstract: A spray nozzle for two-component flue gas cleaning nozzles. The spray nozzle includes an output or mixing chamber and at least two through bores which lead to the output or mixing chamber and are each connected to a fluid line. At least one through bore is embodied in such a way that it is self-cleaning and/or a cleaning device is provided for at least one through bore.

Abstract: A two-fluid nozzle is provided. The two-fluid nozzle includes a main nozzle, a mixing chamber and a nozzle orifice connected to the mixing chamber and positioned downstream of the mixing chamber. A ring of secondary air nozzles surrounding the nozzle orifice is also provided.

Abstract: A multi-hole or cluster nozzle having several outlet openings for fluid to be atomized. The central longitudinal axes of at least two of the outlet openings are aligned askew relative to one another, where a distance between the central longitudinal axes of these outlet openings and the main longitudinal axis of the nozzle is initially reduced when seen in the outflow direction, without intersecting the central longitudinal axis, and increases again after passing through a minimum distance. Use for example in nozzles for evaporative cooling or for flue gas cleaning.

Abstract: A two-substance nozzle with a nozzle housing, the nozzle housing comprising at least one fluid inlet for fluid that is to be atomized, a second fluid inlet for gaseous fluid, a mixing chamber, a nozzle outlet opening and an annular gap opening surrounding the nozzle outlet opening, whereby, within the nozzle housing, means are provided for generating a film of fluid that is to be atomized on a wall in the mixing chamber, and inlet openings are provided for injecting gaseous fluid into the mixing chamber. The inlet openings and the mixing chamber are aligned and configured in a manner so as to inject the gaseous fluid essentially parallel to the wall in the mixing chamber and to move the stream of gaseous fluid within the mixing chamber essentially parallel past the wall.

Abstract: A two-substance nozzle with a nozzle housing, the nozzle housing comprising at least one fluid inlet for fluid that is to be atomized, a second fluid inlet for gaseous fluid, a mixing chamber, a nozzle outlet opening and an annular gap opening surrounding the nozzle outlet opening, whereby, within the nozzle housing, means are provided for generating a film of fluid that is to be atomized on a wall in the mixing chamber, and inlet openings are provided for injecting gaseous fluid into the mixing chamber. The inlet openings and the mixing chamber are aligned and configured in a manner so as to inject the gaseous fluid essentially parallel to the wall in the mixing chamber and to move the stream of gaseous fluid within the mixing chamber essentially parallel past the wall.

Abstract: A duct in which a fluid can be conducted is bound by duct walls, wherein the duct walls have an inlet opening and an outlet opening through which the fluid can enter the duct and exit the duct. The fluid has a flow velocity which is smaller along the duct walls than at the duct middle, so that a zone of higher flow velocity and a zone of lower flow velocity can be formed in the duct. A flow guide surface is arranged in the duct by means of which a portion of the fluid can be taken from the zone of higher flow velocity and can be mixed into the zone of lower flow velocity.

Abstract: A spray nozzle for two-component flue gas cleaning nozzles. The spray nozzle includes an output or mixing chamber and at least two through bores which lead to the output or mixing chamber and are each connected to a fluid line. At least one through bore is embodied in such a way that it is self-cleaning and/or a cleaning device is provided for at least one through bore.

Abstract: A spray nozzle for two-componet flue gas cleaning nozzles. the spray nozzle includes an output or mixing chamber and at least two through bores which lead to the output or mixing chamber and are each connected to a fluid line. At least one through bore is embodied in such a way that it is self-cleaning and/or a cleaning device is provided for at least one through bore.

Abstract: A spray system for spraying a secondary fluid into a primary fluid. The secondary fluid is gaseous, liquid or contains fine particulate solids to be dispersed in the primary fluid. The spray system has a central nozzle for the primary fluid and a nozzle for the secondary fluid. The nozzle housing has a tubular design and the central nozzle is provided with a central passage for the primary fluid. The passage, as seen in the flow direction, has convergent inlet region, a constriction and a divergent outlet part. An outlet opening for the secondary fluid is arranged on the downstream end of the nozzle housing and an outlet opening generates a spray jet of secondary fluid that surrounds the primary fluid exiting the central passage in a substantially ring-shaped manner.

Abstract: An externally mixing multi-component nozzle for spraying fluids with the assistance of an atomizing gas that is hot in relation to the fluids to be sprayed, said the gas particularly being steam or hot gas. The nozzle has a housing, wherein the housing has an outlet orifice for the atomizing gas, a first annular gap for fluid to be sprayed, surrounding the outlet orifice, and a second annular gap for the atomizing gas, surrounding the first annular gap, as well as a manifold. The manifold has at least one flow channel for fluid to be sprayed, from a connecting line to the first annular gap, and at least one flow channel from an atomizing gas connecting line to the outlet orifice for atomizing gas.

Abstract: An atomizing nozzle for two substances, which is used for spraying a liquid with the aid of a compressed gas, is provided. The atomizing nozzle includes a mixing chamber, a liquid inlet that extends into the mixing chamber, a compressed gas inlet which extends into the mixing chamber, and an outlet located downstream from the mixing chamber. An annular gap is provided which surrounds the outlet and discharges compressed gas at a high speed. The atomizing nozzle is used for purifying flue gas.

Abstract: The invention relates to multi-hole or cluster nozzle having several outlet openings for fluid to be atomized. In accordance with the invention, the central longitudinal axes of at least two of the outlet openings are aligned askew relative to one another, where a distance between the central longitudinal axes of these outlet openings and the main longitudinal axis of the nozzle is initially reduced when seen in the outflow direction, without intersecting the central longitudinal axis, and increases again after passing through a minimum distance. Use for example in nozzles for evaporative cooling or for flue gas cleaning.

Abstract: The invention relates to a two-fluid nozzle with a main nozzle, having a mixing chamber and a nozzle orifice connected to said mixing chamber and positioned downstream thereof. According to the invention a ring of secondary air nozzles surrounding the nozzle orifice is provided. Use, e.g. for evaporation cooling.

Abstract: Two-substance nozzle, cluster nozzle with several two-substance nozzles and method for the atomization of fluids by means of a two-substance nozzle. The invention relates to a two-substance nozzle with a nozzle housing, said nozzle housing comprising at least one fluid inlet for fluid that is to be atomized, a second fluid inlet for gaseous fluid, a mixing chamber, a nozzle outlet opening and an annular gap opening surrounding the nozzle outlet opening, whereby, within the nozzle housing, means are provided for generating a film of fluid that is to be atomized on a wall in the mixing chamber, and inlet openings are provided for injecting gaseous fluid into the mixing chamber. In accordance with the invention, the inlet openings and the mixing chamber are aligned and configured in a manner so as to inject the gaseous fluid essentially parallel to the wall in the mixing chamber and to move the stream of gaseous fluid within the mixing chamber essentially parallel past the wall. Use, e.g., for flue gas cleaning.

Abstract: The invention relates to an atomizing nozzle for two substances, which is used for spraying a liquid with the aid of a compressed gas. Said atomizing nozzle comprises a mixing chamber, a liquid inlet that extends into the mixing chamber, a compressed gas inlet which extends into the mixing chamber, and an outlet located downstream from the mixing chamber. According to the invention, an annular gap is provided which surrounds the outlet and discharges compressed gas at a high speed. The inventive atomizing nozzle is used for purifying flue gas, for example.

Abstract: The invention relates to a spray nozzle comprising an output or mixing chamber (7) and at least two through bores (5) which lead to said output or mixing chamber and are connected to a fluid line, respectively. Said invention is characterised in that at least one through bore is embodied in such a way that it is self-cleaning and/or a cleaning device (74) is provided for at least one through bore. The invention can be used for example for two-component flue gas cleaning nozzles.

Abstract: A scrubbing apparatus for separating gaseous or particulate contents, especially from flue gas, using a plurality of spin spray nozzles arranged such that adjacent spray nozzles have a different spin. Double spin spray nozzles can be used that produce oppositely aimed spray jets of different spin.

Abstract: An arrangement for burning refuse in which the refuse is deposited on a grate and transported to a drop-out shaft. A part of the air supplied for burning the refuse is transmitted as primary air from below the grate. A part of the air is also blown into a combustion chamber as secondary air. The resulting flue gas from the combustion is moved in a direct or parallel stream with the refuse to an end region of the combustion chamber, and deflected in direction and injected through an opening in a flue gas channel having a vertical center plane and two channel halves on both sides of the plane. At least a secondary air stream is blown into blown channel halves in the region of the channel opening, mirror-symmetrically to the center plane. The second air stream is blown in with a rotary pulse relative to a center axis of a cross-section of the channel halves. Two oppositely rotating swirls are generated by the secondary air streams in the channel halves symmetrically to the vertical center plane.

Abstract: Upholstery for a seat, rest or couch. The upholstery includes internal channels through which draining air may flow. Valve means that open under load or compression control air flow through the channels. The flow of draining air is increased automatically or given a desired flow distribution by the surface area pressure controlled by a seated person. The cross sections of the valve means and the channels may be designed so that even a very small pressure difference and correspondingly little energy expenditure will provide a satisfactory air flow rate.