Fan

Abstract

A ceiling fan includes an annular nozzle having an inner wall, an outer wall extending about the inner wall, an air inlet for receiving an air flow, an air outlet for emitting the air flow, and an interior passage located between the inner wall and the outer wall for conveying the air flow to the air outlet. The inner wall defines a bore through which air from outside the nozzle is drawn by the air flow emitted from the air outlet. The fan includes a support assembly for supporting the nozzle on a ceiling. The nozzle is rotatable relative to the support assembly about a rotational axis and between a first orientation in which the air flow is directed away from the ceiling and a second orientation in which the air flow is directed towards the ceiling.

1 . A ceiling fan comprising:
 an annular nozzle comprising an inner wall, an outer wall extending about the inner wall, an air inlet, at least one air outlet, and an interior passage located between the inner wall and the outer wall for conveying an air flow to said at least one air outlet, the inner wall defining a bore through which air from outside the nozzle is drawn by the air flow emitted from said at least one air outlet; and   a support assembly for supporting the nozzle on a ceiling;   wherein the nozzle is rotatable relative to the support assembly about a rotational axis and between a first orientation in which the air flow is directed away from the ceiling and a second orientation in which the air flow is directed towards the ceiling.   
     
     
         2 . The ceiling fan of  claim 1 , wherein the nozzle is inverted as it is rotated between the first orientation and the second orientation. 
     
     
         3 . The ceiling fan of  claim 1 , wherein the rotational axis is substantially orthogonal to an axis of the bore. 
     
     
         4 . The ceiling fan of  claim 1 , comprising an air inlet section housing a device for generating the air flow. 
     
     
         5 . The ceiling fan of  claim 4 , wherein the device for generating the air flow is located between the support assembly and the annular nozzle. 
     
     
         6 . The ceiling fan of  claim 4 , wherein the device for generating the air flow is connected to the annular nozzle for rotation therewith as the annular nozzle is rotated relative to the support assembly between the first orientation and the second orientation. 
     
     
         7 . The ceiling fan of  claim 1 , wherein the support assembly comprises an air passage disposed upstream of the at least one air outlet. 
     
     
         8 . The ceiling fan of  claim 7 , wherein the air passage has a longitudinal axis, and wherein the rotational axis is substantially co-planar with the longitudinal axis of the air passage. 
     
     
         9 . The ceiling fan of  claim 7 , wherein the air passage is arranged to convey an air flow to the annular nozzle. 
     
     
         10 . The ceiling fan of  claim 1 , wherein the nozzle is pivotable relative to at least part of the support assembly. 
     
     
         11 . The ceiling fan of  claim 10 , wherein the nozzle is pivotable relative to said at least part of the support assembly about a pivot axis which is substantially orthogonal to the rotational axis of the annular nozzle. 
     
     
         12 . The ceiling fan of  claim 10 , wherein the nozzle is pivotable relative to said at least part of the support assembly between a raised position and a lowered position to allow the nozzle to be rotated between the first orientation and the second orientation. 
     
     
         13 . The ceiling fan of  claim 12 , wherein the rotational axis is substantially horizontal when the body is in the raised position and the support assembly is connected to a substantially horizontal ceiling. 
     
     
         14 . The ceiling fan of  claim 12 , wherein the nozzle is pivotable about an angle in the range from 5 to 45° from the raised position to the lowered position. 
     
     
         15 . The ceiling fan of  claim 12 , wherein the nozzle is pivotable about an angle in the range from 10 to 20° from the raised position to the lowered position. 
     
     
         16 . The ceiling fan of  claim 12 , wherein the support assembly houses a releasable locking mechanism for locking the nozzle in the raised position. 
     
     
         17 . The ceiling fan of  claim 1 , wherein the nozzle comprises an air outlet section extending between the inner wall and the outer wall, and the air outlet section comprising said at least one air outlet. 
     
     
         18 . The ceiling fan of  claim 17 , wherein the air outlet section comprises an inner section connected to the inner wall, and an outer section connected to the outer wall, and wherein at least part of the inner section tapers away from the bore axis. 
     
     
         19 . The ceiling fan of  claim 18 , wherein an angle of inclination of said at least part of the inner section to the bore axis is between 0 and 45°. 
     
     
         20 . The ceiling fan of  claim 18 , wherein said at least part of the inner section has a shape which is substantially conical. 
     
     
         21 . The ceiling fan of  claim 18 , wherein said at least one air outlet is located between the inner section and the outer section. 
     
     
         22 . The ceiling fan of  claim 18 , wherein the outer section is substantially orthogonal to an axis of the bore. 
     
     
         23 . The ceiling fan of  claim 1 , wherein said at least one air outlet extends about an axis of the bore. 
     
     
         24 . The ceiling fan of  claim 1 , wherein said at least one air outlet comprises a substantially annular air outlet.