Reducing accumulation of dust particles on a heat dissipating arrangement

Abstract

A method and apparatus to reduce dust particles accumulated on one or more surfaces provisioned proximate to the pulsating fan. The surfaces may include a heat exchanger provisioned proximate to the pulsating fan and the blades of the pulsating fan or any other such surface. The pulsating fan may be rotated in a first direction for a first time duration and in a second direction for a second time duration. The dust particles that are accumulated on the one or more surfaces provisioned proximate to the pulsating fan is reduced while the pulsating fan is rotated in the second direction. The second direction of rotation is reverse to the first direction of rotation. The pulsating fan may comprise an axial fan or a centrifugal fan.

1 . An apparatus comprising:
 a pulsating fan, wherein the pulsating fan is rotated in a first direction for a first time duration and a second direction for a second time duration, and   a plurality of surfaces proximate to the pulsating fan,   wherein dust particles that are accumulated on the plurality of surfaces is reduced while the pulsating fan is rotated in the second direction,   wherein the second direction of rotation is reverse to the first direction of rotation,   wherein the plurality of surfaces include a heat exchanger and blades of the pulsating fan.   
   
   
       2 . The apparatus of  claim 1 , wherein the pulsating fan is an axial fan. 
   
   
       3 . The apparatus of  claim 2 , wherein rotation of the axial fan in the first direction causes air to flow in a third direction and rotation of the axial fan in the second direction causes the air to flow in a fourth direction, wherein the fourth direction is substantially opposite to the third direction. 
   
   
       4 . The apparatus of  claim 3 , wherein rotating the axial fan in the second direction is initiated based on occurrence of an event, wherein the event comprises thermal level of a heat generating device, from which the heat is dissipated, exceeding a set level. 
   
   
       5 . The apparatus of  claim 1 , wherein the pulsating fan is a centrifugal fan. 
   
   
       6 . The apparatus of  claim 5 , wherein rotation of the centrifugal fan in the first direction causes air to impinge the heat exchanger in a fifth direction and rotation of the centrifugal fan in the second direction causes the air to impinge the heat exchanger in a sixth direction, wherein the air impinging the heat exchanger in the sixth direction dislodges the dust particles. 
   
   
       7 . The apparatus of  claim 6 , wherein the sixth direction forms a first angle with the fifth direction, wherein the first angle is an acute angle, wherein the air impinging the heat exchanger in the first angle dislodges the dust particles accumulated on the heat exchanger. 
   
   
       8 . The apparatus of  claim 6 , wherein the sixth direction forms a second angle with the fifth direction, wherein the second angle is an obtuse angle, wherein the air impinging the heat exchanger in the second angle dislodges the dust particles accumulated on the heat exchanger. 
   
   
       9 . The apparatus of  claim 5 , wherein rotating the centrifugal fan in the second direction is initiated based on occurrence of an event, wherein the event comprises elapsing of the first time duration. 
   
   
       10 . A method comprising:
 rotating a pulsating fan in a first direction for a first time duration and a second direction for a second time duration, and   provisioning a plurality of surfaces proximate to the pulsating fan,   wherein dust particles that are accumulated on the plurality of surfaces is reduced while the pulsating fan is rotated in the second direction,   wherein the second direction of rotation is reverse to the first direction of rotation,   wherein the plurality of surfaces include a heat exchanger and blades of the pulsating fan.   
   
   
       11 . The method of  claim 10 , wherein the pulsating fan is an axial fan. 
   
   
       12 . The method of  claim 11 , wherein rotation of the axial fan in the first direction causes air to flow in a third direction and rotation of the axial fan in the second direction causes the air to flow in a fourth direction, wherein the fourth direction is substantially opposite to the third direction. 
   
   
       13 . The method of  claim 12 , wherein rotating the axial fan in the second direction is initiated based on occurrence of an event, wherein the event comprises thermal level of a heat generating device, from which the heat is dissipated, exceeding a set level. 
   
   
       14 . The method of  claim 10 , wherein the pulsating fan is a centrifugal fan. 
   
   
       15 . The method of  claim 14 , wherein rotation of the centrifugal fan in the first direction causes air to impinge the heat exchanger in a fifth direction and rotation of the centrifugal fan in the second direction causes the air to impinge the heat exchanger in a sixth direction, wherein the air impinging the heat exchanger in the sixth direction dislodges the dust particles. 
   
   
       16 . The method of  claim 15 , wherein the sixth direction forms a first angle with the fifth direction, wherein the first angle is an acute angle, wherein the air impinging the heat exchanger in the first angle dislodges the dust particles. 
   
   
       17 . The method of  claim 15 , wherein the sixth direction forms a second angle with the fifth direction, wherein the second angle is an obtuse angle, wherein the air impinging the heat exchanger in the second angle dislodges the dust particles. 
   
   
       18 . The method of  claim 14 , wherein rotating the centrifugal fan in the second direction is initiated based on occurrence of an event, wherein the event comprises elapsing of the first time duration. 
   
   
       19 . A system comprising:
 a heat generating device, and   heat dissipation arrangement, wherein the heat dissipation arrangement is provisioned proximate to the heat generating device,   wherein the heat dissipation arrangement comprises a pulsating fan, wherein the pulsating fan is rotated in a first direction for a first time duration and a second direction for a second time duration and a plurality of surfaces provisioned proximate to the pulsating fan,   wherein dust particles that are accumulated on the plurality of surfaces is reduced while the pulsating fan is rotated in the second direction,   wherein the second direction of rotation is reverse to the first direction of rotation,   wherein the plurality of surfaces include a heat exchanger and blades of the pulsating fan.   
   
   
       20 . The system of  claim 19 , wherein the heat generating device is a processor. 
   
   
       21 . The system of  claim 19 , wherein the pulsating fan is an axial fan. 
   
   
       22 . The system of  claim 20 , wherein the rotation in the first direction causes the air to flow in a third direction and the rotation in the second direction causes the air to flow in a fourth direction, wherein the fourth direction is substantially opposite to the third direction. 
   
   
       23 . The system of  claim 19 , wherein the heat generating device is a graphics device. 
   
   
       24 . The system of  claim 19 , wherein the pulsating fan is a centrifugal fan. 
   
   
       25 . The system of  claim 20 , wherein rotation of the centrifugal fan in the first direction causes air to impinge the heat exchanger in a fifth direction and rotation of the centrifugal fan in the second direction causes the air to impinge the heat exchanger in a sixth direction. 
   
   
       26 . The system of  claim 25 , wherein the impingement of air in the sixth direction dislodges the dust accumulated on the heat exchanger. 
   
   
       27 . The system of  claim 25 , wherein the sixth direction forms a first angle with the fifth direction, wherein the first angle is an acute angle, wherein the air impinging the heat exchanger at the first angle dislodges the dust particles. 
   
   
       28 . The system of  claim 25 , wherein the sixth direction forms a second angle with the fifth direction, wherein the second angle is an obtuse angle, wherein the air impinging the heat exchanger at the second angle dislodges the dust particles.