Air intake and blowing device

• US 6,551,185 B1
• Filed: 11/07/2000
• Issued: 04/22/2003
• Est. Priority Date: 03/30/1998
• Status: Expired due to Fees

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Iwata, Toru, Miyake, Kunihiko, Kamada, Masashi, Kikuchi, Yoshimasa
• Primary Examiner(s): Boles, Derek
• Application Number:
  US09/647,499
• Time in Patent Office: 896 Days
• Field of Search: 454/243, 454/234, 454/236, 454/241
• US Class Current: 454/234
• CPC Class Codes: F04D 29/4213 suction ports
• CPC Class Codes: F15D 1/009 by means of vortex rings
• CPC Class Codes: F24F 1/0011 characterised by air outlets
• CPC Class Codes: F24F 1/0035 characterised by introduction of outside air to the room
• CPC Class Codes: F24F 1/0038 in combination with simultaneous exhaustion of inside air
• CPC Class Codes: F24F 1/0041 characterised by exhaustion of inside air from the room in combination with simultaneous introduction of outside air F24F1/0038
• CPC Class Codes: F24F 1/0047 mounted in the ceiling or at the ceiling
• CPC Class Codes: F24F 13/15 with parallel simultaneously tiltable lamellae
• CPC Class Codes: F24F 2221/46 Air flow forming a vortex
• CPC Class Codes: F24F 7/10 with air supply, or exhaust, through perforated wall, floor or ceiling outlet members for directing or distributing air into rooms or spaces, e.g. ceiling air-diffusers F24F13/06
• CPC Class Codes: F24F 8/183 by centrifugal separation, e.g. using vortices
• CPC Class Codes: F24F 8/30 by ionisation

Abstract

An air intake and blowing device, comprising a blowing fan (11) such as a turbo fan capable of blowing air in all directions which is installed inside a main casing (2) provided with an air intake port (5) and an air blowing port (9) enclosing the air intake port (5), the air blowing port (9) being provided with a vortex flow creating member which creates a spiral blowing vortex air flow to form a spirally swirl-blowing air flow, and air surrounded by the blowing air flow being formed in a stable tornado flow and sucked strongly into the air intake port (5).

Claims

1. An air intake and blowing device wherein a main casing is provided with an air intake port and an air blowing port substantially enclosing the air intake port, and wherein

an air passage is formed within the main casing so as to extend from the air intake port to the air blowing port, and wherein

an air blowing fan capable of blowing air circumferentially in all periphery thereof is provided in the air passage, and wherein

a vortex flow creating member including a plurality of stators for creating a vortex air flow is provided in the air blowing port so that a spiral swirl-blowing air flow is formed so as to generate an intake swirl flow having a sucking force toward a center axis of the spiral swirl-blowing air flow and the air intake port.

2. An air intake and blowing device as claimed in claim 1, wherein

the air blowing port is comprised of an annular opening continuous in the circumferential direction.

3. An air intake and blowing device as claimed in claim 1, wherein

the air blowing port is comprised of a plurality of slit-shaped openings arranged at a specified interval in the circumferential direction.

4. An air intake and blowing device as claimed in claim 1, wherein

the vortex flow creating member is comprised of a plurality of stators that have a specified inclination angle in an air turn direction and are provided in the air blowing port.

5. An air intake and blowing device as claimed in claim 1, wherein

the vortex flow creating member is comprised of a plurality of first stators that a re provided in the air blowing port to adjust an angle of an air turn direction and a plurality of second stators that are provided in the air blowing port to adjust an angle of an air blow direction.

6. An air intake and blowing device as claimed in claim 1, wherein

the air blowing port is formed in such a manner as to be inclined obliquely outwardly from an upstream side to a downstream side of air flow.

7. An air intake and blowing device as claimed in claim 1, wherein

the air blowing port is formed in a vertical direction from an upstream side to a downstream side of air flow.

8. An air intake and blowing device as claimed in claim 1, wherein

an air blow condition of the air blowing port is set so that a ratio between a circumferential velocity component and a vertical velocity component becomes 0.25 to 1.

9. An air intake and blowing device wherein an air intake port and an air blowing port substantially enclosing the air intake port are opened on a casing, and wherein

a tornado flow directed toward the air intake port is generated inside a vortex flow by blowing air sucked through the air intake port from the air blowing port as the vortex flow, and wherein

the air blowing port is provided with an air flow adhesion preventing member for preventing the vortex flow blown from the air blowing port from adhering to a casing surface.

10. An air intake and blowing device as claimed in claim 9, wherein

the air flow adhesion preventing member is comprised of an annular body that extends from an outer peripheral edge of the air blowing port to an extension of the outer peripheral edge substantially along the air blow direction of the air blowing port throughout an entire circumference of the outer peripheral edge in a state in which the annular body is protruded from the casing surface.

11. An air intake and blowing device as claimed in claim 9, wherein

the air flow adhesion preventing member is comprised of an annular body protruded from an outer peripheral edge of the air blowing port into an air blowing passage of the air blowing port throughout an entire circumference of the outer peripheral edge.

12. An air intake and blowing device as claimed in claim 9, wherein

the air flow adhesion preventing member is comprised of an outer annular body protruded from an outer peripheral edge of the air blowing port into an air blowing passage of the air blowing port throughout an entire circumference of the outer peripheral edge and an inner annular body protruded from an inner peripheral edge of the air blowing port into the air blowing passage throughout an entire circumference of the inner peripheral edge.

13. An air intake and blowing device as claimed in claim 9, wherein

an air heat exchanger or an air purifying element or both the air heat exchanger and the air purifying element are arranged in an air passage that extends from the air intake port to the air blowing port.

14. An air intake and blowing device as claimed in claim 9, wherein

the air intake port and the air blowing port are connected to an air discharge means and an air supply means, respectively.

15. An air intake and blowing device as claimed in claim 14, wherein

the air supply means is an air conditioning mechanism for supplying temperature controlled air.

16. An air intake and blowing device as claimed in claim 14, wherein

a total heat exchange mechanism for performing heat exchange between exhaust air discharged by the air discharge means and supply air supplied by the air supply means is interposed between the air discharge means and the air supply means.

17. An air intake and blowing device wherein an air intake port and an air blowing port substantially enclosing the air intake port are provided to form a tornado flow directed toward the air intake port inside an vortex flow by blowing air sucked through the air intake port from the air blowing port as the vortex flow, and wherein

a wall member that forms a specified corner portion between the wall member and an air blowing side surface of a panel member is provided with the air blowing port in a position outwardly separated by a specified distance from the air blowing port in terms of a plan view.

18. An air intake and blowing device as claimed in claim 17, wherein

the wall member is comprised of a protruding body that is protruded ahead in the air blow direction from the air blowing side surface of the panel member and extended so as to enclose the air blowing port.

19. An air intake and blowing device as claimed in claim 17, wherein

the wall member is formed integrally with the panel member provided with the air blowing port.

20. An air intake and blowing device as claimed in claim 17, wherein

the wall member is comprised of a room interior wall that is arranged so as to be extended in a direction approximately perpendicular to a surface of the panel member in a state in which the wall surface encloses the panel member provided with the air blowing port.

21. An air intake and blowing device as claimed in claim 17, wherein

a guide member extended in a direction of extension of an outer peripheral wall of the air blowing port is provided throughout the entire region of the air blowing port.

22. An air intake and blowing device as claimed in claim 17, wherein

an air heat exchanger is arranged inside an air passage that extends from the air intake port to the air blowing port.

23. An air intake and blowing device as claimed in claim 17, wherein

an air purifying element is arranged inside an air passage that extends from the air intake port to the air blowing port.

24. An air intake and blowing device comprising:

a panel having an air intake port and an air blowing port that substantially encloses the air intake port;

a main casing which internally has an air passage that extends from the air intake port and an air passage that extends to the air blowing port and to which the panel is attached; and

a vortex flow creating member including a plurality of stators for creating a vortex air flow from the air blowing port, so that a spiral swirl-blowing air flow is formed so as to generate an intake swirl flow having a sucking force toward a center axis of the spiral swirl-blowing air flow and the air intake port.

25. An air intake and blowing device as claimed in claim 24, wherein

the air intake port is provided with an exhaust air passage that communicates with the air intake port via the air passage.

26. An air intake and blowing device as claimed in claim 24, wherein

the air blowing port is provided with a fresh air intake passage that communicates with the air blowing port via the air passage.

27. An air intake and blowing device as claimed in claim 24, comprising:

an air flow adhesion preventing member for preventing the vortex air flow blown from the air blowing port from adhering to a surface of the panel.

28. An air intake and blowing device as claimed in claim 24, wherein

a wall member is provided on a surface of the panel separated apart by a specified distance from the air blowing port toward the outer periphery of the panel, forming a specified corner portion between the panel and the wall member.

29. An air intake and blowing device as claimed in claim 24, wherein

a fan for sucking in air from the air intake port via the air passage and blowing air to the air blowing port via the air passage is provided inside the casing.

30. An air intake and blowing device as claimed in claim 25, comprising:

an exhaust fan for blowing to the exhaust air passage the air sucked from the air intake port via the air passage.

31. An air intake and blowing device as claimed in claim 26, comprising:

a supply air fan for blowing the fresh air sucked from the fresh air intake passage to the air blowing port via the air passage.

32. An air intake and blowing device as claimed in claim 30, comprising:

a supply air fan for blowing fresh air sucked from a fresh air intake passage to the air blowing port via the air passage.