Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
  • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
  • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
  • B05B3/0417—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine
  • B05B3/0429—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine the rotating outlet elements being directly attached to the rotor or being an integral part thereof
  • B05B3/043—Rotor nozzles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
  • B05B1/3013—Lift valves

Definitions

• It relates more particularly to a jet nozzle with an injector end is driven in circular displacement within an enlarged section of the envelope under the effect of a tangential flow water pressure acting on said injector while the other end of this injector is housed in the opening of the shaped cavity in the form of a concave seat allowing the precession movements of the injector.
• This nozzle is characterized by its complexity which results from the fact that the adjustment is effected by relative movement of the sleeve and the envelope, which are not static elements. Because of this configuration, the adjustment possibilities resulting from a sectional difference of the cone-shaped axial passages formed between bushing and casing are small and do not allow adjustment within a wide range. Therefore, for low pressure operation, this nozzle must have additional conduits for discharging fluid out of the nozzle generating a significant loss of fluid, it being understood that this fluid discharge requires a third moving part capable of closing or open these additional conduits.
• US 6 230 984 discloses a shower nozzle formed again of a fluid supply pipe or sleeve closed by a transverse wall at one of its ends and an envelope threaded on this pipe and movable axially by relation to said conduct. There is therefore again an assembly in which casing and sleeve are driven by an axial relative movement allowing a flow rate adjustment.
• the envelope delimits a plurality of cylindrical housings angularly distributed uniformly about the longitudinal axis of the nozzle, each housing receiving an injector.
• This injector is driven in circular displacement under the effect of a substantially axial flow fluid pressure acting on said injector. Consequently, such a nozzle does not make it possible to respond to the technical problem posed by the outlet of the ducts inside the cavities of the casing, this outflow having a substantially axial orientation, which is incapable of guaranteeing effective entrainment of the injector.
• Figure 1 shows a schematic sectional view of a rotating jet nozzle, the shutter having been partially introduced into the sleeve;
• the sleeve 6, which closes the end of the nozzle 1 fluid inlet side, is in turn in the form of a generally cylindrical body whose end 6A injector side is closed by a transverse wall 7.
• the socket body 6 thus has, in the vicinity of said transverse wall, radial orifices 8 oriented to generate, inside the cavity 3 of the casing 2, a swirling fluid flow transmitting its movement to the injector 4.
• the sleeve 6 here having a stepped profile is equipped with a thread intended to cooperate with the tapping of the casing 2 of the nozzle when the sleeve 6 is placed inside the casing. envelope of the nozzle.
• the shutter 9, which makes it possible to more or less close the radial orifices 8 of the socket 6, can be controlled manually or automatically during operation.
• This shutter 9 can affect a large number of shapes.
• the shutter 9 has the shape of an axially displaceable conduit 10 passing through the static bushing 6 in such a way that one of the ends 10A the shutter 9 comes to partially close on demand the radial holes 8 of the sleeve 6 while its other end 10B is connectable to a fluid inlet.
• the shutter 9 has the shape of a ring 16 capping the end provided with radial holes 8 of the sleeve 6.
• This ring 16 is provided with radial orifices 17 which can be brought into total or partial correspondence with the radial orifices 8 of the bushing 6 during an angular displacement of the ring 16 as a function of the desired flow rate.
• the flow control is effected by a displacement in rotation of the shutter 9.
• the ring 16 is closed at one of its ends by a transverse wall doubling the transverse wall 7 of the 6. This transverse wall is however in no way obligatory.

Landscapes

• Nozzles (AREA)

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Family Cites Families (6)

• 2006
  • 2006-07-20 FR FR0606618A patent/FR2903920B1/fr active Active
• 2007
  • 2007-06-27 WO PCT/FR2007/001084 patent/WO2008009787A2/fr not_active Ceased
  • 2007-06-27 EP EP07803793A patent/EP2054159A2/de not_active Withdrawn

Non-Patent Citations (1)

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