Bladeless fan for commercial applications

Abstract

A bladeless fan comprising a ring-shaped chamber extending longitudinally and defining a suctioned air passage having a main-flow inlet and a main-flow outlet; a compressed-gas inlet adapted to receive compressed gas and to provide the compressed gas to the ring-shaped chamber; and a proximal row of channels radially distributed about the suctioned air passage. The channels provide a fluid connection for the compressed gas from the ring-shaped chamber to the suctioned air passage thereby generating a pressure differential along the suctioned air passage and forcing a flow of gas from the main-flow inlet to the main-flow outlet.

1 . A bladeless fan comprising:
 a ring-shaped chamber extending longitudinally and defining a suctioned air passage having a main-flow inlet and a main-flow outlet;   a compressed-gas inlet adapted to receive compressed gas and to provide the compressed gas to the ring-shaped chamber; and   a proximal row of channels radially distributed about the suctioned air passage wherein the channels provide a fluid connection for the compressed gas from the ring-shaped chamber to the suctioned air passage thereby generating a pressure differential along the suctioned air passage and forcing a flow of gas from the main-flow inlet to the main-flow outlet, further wherein the proximal row of channels is closer to the main-flow inlet than to the main-flow outlet, wherein the channels have a swirling angle greater than zero (0) degrees.   
     
     
         2 . The bladeless fan of  claim 1 , wherein the ring-shaped chamber comprises an inner face having an airfoil profile where a diameter of the suctioned air passage near the main-flow inlet is smaller than a diameter of the suctioned air passage near the main-flow outlet. 
     
     
         3 . The bladeless fan of  claim 1 , wherein the channels have a downstream angle greater than zero (0) degrees. 
     
     
         4 . (canceled) 
     
     
         5 . (canceled) 
     
     
         6 . (canceled) 
     
     
         7 . (canceled) 
     
     
         8 . The bladeless fan of  claim 1 , further comprising an additional row of channels, wherein the additional row is located farther from the main-flow inlet than the proximal row of channels. 
     
     
         9 . The bladeless fan of  claim 8 , wherein the compressed-gas inlet is closer to the proximal row of channels than to the additional row of channels. 
     
     
         10 . The bladeless fan of  claim 8 , wherein the channels of the additional row have a cross-section area greater than the cross-section area of the channels of the proximal row. 
     
     
         11 . The bladeless fan of  claim 8 , wherein the channels of the proximal row of channels have a first swirling angle, the channels of the additional row of channels have a second swirling angle, and the first swirling angle is greater than the second swirling angle. 
     
     
         12 . The bladeless fan of  claim 1 , wherein the proximal row of channels comprises at least three channels distant from each other and where the at least three channels are within a gas inlet plane perpendicular to a longitudinal axis. 
     
     
         13 . The bladeless fan of  claim 1 , wherein the proximal row of channels is longitudinally distant from the main-flow inlet. 
     
     
         14 . The bladeless fan of  claim 1 , wherein the compressed-gas inlet is closer to the main-flow inlet than to the main-flow outlet. 
     
     
         15 . The bladeless fan of  claim 1 , wherein the suctioned air passage has a cylindrical shape. 
     
     
         16 . A bladeless fan assembly for accelerating a flow of gas in a lumen of a heating, ventilation, and air conditioning (HVAC) system, the lumen having an inner face, the bladeless fan assembly comprising:
 a ring-shaped chamber extending longitudinally and defining a suctioned air passage having a main-flow inlet and a main-flow outlet;   a compressed-gas inlet adapted to receive compressed gas and to provide the compressed gas to the ring-shaped chamber;   a proximal row of channels radially distributed about the suctioned air passage wherein the channels provide a fluid connection for the compressed gas from the ring-shaped chamber to the suctioned air passage thereby generating a pressure differential along the suctioned air passage and accelerating a first portion of the flow of gas from the main-flow inlet to the main-flow outlet; and   at least one bracket adapted to mount the ring-shaped chamber to the inner face of the lumen of the HVAC system,   
       wherein a second portion of the flow of gas travels between the inner face of the HVAC system and the ring-shaped chamber, whereby the first portion and the second portion of the flow of gas mix downstream of the ring-shaped chamber to generate an accelerated flow of gas, 
       wherein the channels have a swirling angle greater than zero (0) degrees. 
     
     
         17 . (canceled) 
     
     
         18 . The bladeless fan assembly of  claim 16 , wherein the ring-shaped chamber has an inner wall delimiting the suctioned air passage and an external wall opposite the suctioned air passage, wherein the inner wall and the external wall form a cylindrically shaped airfoil. 
     
     
         19 . The bladeless fan assembly of  claim 16 , further comprising a source of compressed gas connected to the compressed-gas inlet, wherein the source of compressed gas is located outside the lumen. 
     
     
         20 . The bladeless fan assembly of  claim 16 , further comprising an upstream inlet located within the lumen, the upstream inlet being fed with compressed gas which in turn feeds the ring-shaped chamber. 
     
     
         21 . A bladeless fan comprising:
 a ring-shaped chamber extending longitudinally and defining a suctioned air passage having a main-flow inlet and a main-flow outlet;   a compressed-gas inlet adapted to receive compressed gas and to provide the compressed gas to the ring-shaped chamber; and   rows of channels radially distributed about the suctioned air passage wherein the channels provide a fluid connection for the compressed gas from the ring-shaped chamber to the suctioned air passage thereby generating a pressure differential along the suctioned air passage and forcing a flow of gas from the main-flow inlet to the main-flow outlet,   
       wherein the channels within each of the rows of channels are within a respective gas inlet plane perpendicular to the flow of gas. 
     
     
         22 . The bladeless fan of  claim 21 , wherein a proximal row of the rows of channels is closer to the main-flow inlet than to the main-flow outlet. 
     
     
         23 . (canceled) 
     
     
         24 . The bladeless fan of  claim 21 , wherein the ring-shaped chamber comprises an inner face having an airfoil profile where a diameter of the suctioned air passage near the main-flow inlet is smaller than a diameter of the suctioned air passage near the main-flow outlet. 
     
     
         25 . The bladeless fan of  claim 21 , wherein the channels have a swirling angle greater than zero (0) degrees. 
     
     
         26 . The bladeless fan of  claim 21 , further comprising a source of compressed gas connected to the compressed-gas inlet. 
     
     
         27 . (canceled) 
     
     
         28 . (canceled)