Humidifying apparatus

• US 8,783,663 B2
• Filed: 12/18/2012
• Issued: 07/22/2014
• Est. Priority Date: 03/04/2009
• Status: Expired due to Fees

• Current Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Original Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Inventors: Fitton, Nicholas Gerald, Sutton, John Scott, Gammack, Peter David, Dyson, James
• Primary Examiner(s): BUSHEY, CHARLES S
• Application Number:
  US13/718,693
• Publication Number:
  US 20130161842A1
• Time in Patent Office: 581 Days
• Field of Search: 261/28, 261/30, 261/81, 261/116, 415/207, 415/211.2, 415/220, 417/110, 417/126, 417/313
• US Class Current: 261/28
• CPC Class Codes: B05B 17/0615 spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
• CPC Class Codes: F04D 25/08 the working fluid being air, e.g. for ventilation
• CPC Class Codes: F04F 5/16 displacing elastic fluids
• CPC Class Codes: F24F 1/01 in which secondary air is induced by injector action of the primary air
• CPC Class Codes: F24F 13/26 Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
• CPC Class Codes: F24F 2221/28 using the Coanda effect
• CPC Class Codes: F24F 6/14 using nozzles
• CPC Class Codes: Y02B 30/54 Free-cooling systems
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

Humidifying apparatus includes a humidifier for emitting moist air into an external environment, and a fan assembly for generating an air current within the external environment for conveying the emitted moist air away from the humidifier. The fan assembly includes a device for creating an air flow and a nozzle including an interior passage for receiving the air flow and a mouth for emitting the air flow. The humidifier is located behind nozzle, the nozzle extending about and defining an opening through which both air from outside the nozzle and the moist air emitted from the humidifier are drawn by the air flow emitted from the mouth.

Claims

1. Humidifying apparatus comprising a humidifier for emitting moist air into an external environment, a fan assembly for generating an air current within the external environment for conveying the emitted moist air away from the humidifier, the fan assembly comprising a device for creating an air flow, and a nozzle comprising an interior passage for receiving the air flow and a mouth for emitting the air flow, the nozzle extending about and defining an opening for receiving both the moist air emitted from the humidifier and the air flow emitted from the mouth, and wherein air from outside the nozzle is drawn through the opening by the air flow emitted from the mouth.

2. The humidifying apparatus of claim 1, wherein the fan assembly is a bladeless fan assembly.

3. The humidifying apparatus of claim 1, wherein the interior passage is shaped to divide the received air flow into two air streams each flowing along a respective side of the opening.

4. The humidifying apparatus of claim 1, wherein the interior passage is substantially annular.

5. The humidifying apparatus of claim 1, wherein the mouth extends about the opening.

6. The humidifying apparatus of claim 1, wherein the nozzle comprises an inner casing section and an outer casing section which together define the interior passage and the mouth.

7. The humidifying apparatus of claim 6, wherein the mouth comprises an outlet located between an external surface of the inner casing section of the nozzle and an internal surface of the outer casing section of the nozzle.

8. The humidifying apparatus of claim 7, wherein the outlet is in the form of a slot extending at least partially about the opening.

9. The humidifying apparatus of claim 7, wherein the outlet has a width in the range from 0.5 to 5 mm.

10. The humidifying apparatus of claim 1, wherein the nozzle comprises a surface located adjacent the mouth and over which the mouth is arranged to direct the air flow.

11. The humidifying apparatus of claim 10, wherein the surface is a Coanda surface.

12. The humidifying apparatus of claim 11, wherein the Coanda surface extends about the opening.

13. The humidifying apparatus of claim 11, wherein the humidifier comprises a mist outlet located directly behind part of the Coanda surface of the nozzle.

14. The humidifying apparatus of claim 1, wherein the fan assembly is integral with the humidifier.

15. Humidifying apparatus comprising a humidifier having a mist outlet for emitting moist air into an external environment, a fan assembly for generating an air current within the external environment for conveying the emitted moist air away from the humidifier, the fan assembly comprising a device for creating an air flow and a nozzle comprising an interior passage for receiving the air flow and a mouth for emitting the air flow, the nozzle extending about and defining an opening through which air from outside the nozzle is drawn by the air flow emitted from the mouth, and wherein the humid air emitted from the mist outlet becomes entrained within the air flow drawn through the opening.

16. The humidifying apparatus of claim 15, wherein the fan assembly is a bladeless fan assembly.

17. The humidifying apparatus of claim 15, wherein the interior passage is shaped to divide the received air flow into two air streams each flowing along a respective side of the opening.

18. The humidifying apparatus of claim 15, wherein the interior passage is substantially annular.

19. The humidifying apparatus of claim 15, wherein the mouth extends about the opening.

20. The humidifying apparatus of claim 15, wherein the nozzle comprises an inner casing section and an outer casing section which together define the interior passage and the mouth.

21. The humidifying apparatus of claim 20, wherein the mouth comprises an outlet located between an external surface of the inner casing section of the nozzle and an internal surface of the outer casing section of the nozzle.

22. The humidifying apparatus of claim 21, wherein the outlet is in the form of a slot extending at least partially about the opening.

23. The humidifying apparatus of claim 21, wherein the outlet has a width in the range from 0.5 to 5 mm.

24. The humidifying apparatus of claim 15, wherein the nozzle comprises a surface located adjacent the mouth and over which the mouth is arranged to direct the air flow.

25. The humidifying apparatus of claim 24, wherein the surface is a Coanda surface.

26. The humidifying apparatus of claim 25, wherein the Coanda surface extends about the opening.

27. The humidifying apparatus of claim 25, wherein the mist outlet is located directly behind part of the Coanda surface of the nozzle.

28. The humidifying apparatus of claim 15, wherein the fan assembly is integral with the humidifier.