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DRIVE FOR FIRE DAMPER

  • US 20120037713A1
  • Filed: 02/03/2010
  • Published: 02/16/2012
  • Est. Priority Date: 03/02/2009
  • Status: Active Grant
First Claim
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1. A drive apparatus (1) for a fire damper (2), comprising:

  • an electric drive (10), which is designed to hold the fire damper (2) in a normal position with a supply of current and to move said fire damper into a safety position when there is no supply of current,a temperature sensor (13) for measuring an air temperature value (T), anda gas sensor (14) for measuring a content (G) of combustion gases in the air,characterized by a switch module (15), which is connected to the temperature sensor (13) and the gas sensor (14) and is designed to interrupt the supply of current depending on a combination of the air temperature value (T) and the content (G) of combustion gases in the air.

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