US2012237363A1PendingUtilityA1

Method And System For Cleaning A Fan Inlet

33
Individually held — no corporate assignee on recordPriority: Mar 16, 2011Filed: Mar 16, 2011Published: Sep 20, 2012
Est. expiryMar 16, 2031(~4.6 yrs left)· nominal 20-yr term from priority
Inventors:Richard A. Kominsky
F04D 25/166F04D 29/703F04D 27/004Y02B30/70
33
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A system includes a housing; a first fan having a first inlet and a second fan having a second inlet, the first fan and the second fan mounted in a wall of the housing, the first fan and the second fan oriented to draw air into the housing; a device in the housing, the device positioned to receive airflow from the first fan and the second fan; and a controller for controlling the first fan and the second fan, wherein the controller is configured to initiate a cleaning cycle during which the first fan is on and the second fan is off to cause backpressure airflow to flow through the second inlet in a reverse direction for a first time period and the first fan is off and the second fan is on to cause backpressure airflow to flow through the first inlet in a reverse direction for a second time period.

Claims

exact text as granted — not AI-modified
1 . A system comprising:
 a housing;   a first fan having a first inlet and a second fan having a second inlet, the first fan and the second fan mounted in a wall of the housing, the first fan and the second fan oriented to draw air into the housing;   a device in the housing, the device positioned to receive airflow from the first fan and the second fan; and   a controller for controlling the first fan and the second fan, wherein the controller is configured to initiate a cleaning cycle during which the first fan is on and the second fan is off to cause backpressure airflow to flow through the second inlet in a reverse direction for a first time period and the first fan is off and the second fan is on to cause backpressure airflow to flow through the first inlet in a reverse direction for a second time period.   
     
     
         2 . The system of  claim 1  wherein:
 the first inlet is a mesh. 
 
     
     
         3 . The system of  claim 1  wherein:
 the first inlet is a filter. 
 
     
     
         4 . The system of  claim 1  wherein:
 the device includes a heat sink. 
 
     
     
         5 . The system of  claim 4  wherein:
 the device includes a voltage regulator component. 
 
     
     
         6 . The system of  claim 5  wherein:
 the voltage regulator component is part of a motor vehicle electrical system that converts AC voltage from an alternator to DC voltage. 
 
     
     
         7 . The system of  claim 6  wherein:
 wherein the DC voltage is 28 VDC. 
 
     
     
         8 . A method of cooling a device comprising:
 providing a housing;   providing a first fan having a first inlet and a second fan having a second inlet, the first fan and the second fan mounted in a wall of the housing, the first fan and the second fan oriented to draw air into the housing;   providing a device in the housing, the device positioned to receive airflow from the first fan and the second fan; and   providing a controller for controlling the first fan and the second fan, wherein the controller is configured to initiate a cleaning cycle during which the first fan is on and the second fan is off to cause backpressure airflow to flow through the second inlet in a reverse direction for a first time period and the first fan is off and the second fan is on to cause backpressure airflow to flow through the first inlet in a reverse direction for a second time period.   
     
     
         9 . The method of  claim 8  wherein:
 the first inlet is a mesh. 
 
     
     
         10 . The method of  claim 8  wherein:
 the first inlet is a filter. 
 
     
     
         11 . The method of  claim 8  wherein:
 the device includes a heat sink 
 
     
     
         12 . The method of  claim 1  wherein:
 the device includes a voltage regulator component. 
 
     
     
         13 . The method of  claim 12  wherein:
 the voltage regulator component is part of a motor vehicle electrical system that converts AC voltage from an alternator to DC voltage. 
 
     
     
         14 . The method of  claim 13  wherein:
 wherein the DC voltage is 28 VDC.

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