Damper assembly

Abstract

A damper assembly, comprising: a support means defining a plurality of (air) openings; damper means mounted or connected to the support means in relation to the openings for the periodic closure and opening of such openings; a crankshaft means coupled to the damper means such that rotation of the crankshaft means is able to induce displacement of the damper positions to respective second damper positions and back to the first position for adjusting air flow through said openings.

1 . A damper assembly for a ventilation system for the delivery of fresh air from an outside environment to an enclosed space and the exhausting of interior air of said enclosed space to the outside environment, comprising:
 a support means defining a first opening, a second opening and a third opening   a first damper component and a second damper component,
 each of said damper components comprising a respective connector element, 
 said first damper component being displaceable between a respective first position for a ventilation mode wherein the first damper component closes off said third opening and the first opening is unobstructed by said first damper component and a respective second position for a defrost mode wherein the first damper component closes off the first opening and the third opening is unobstructed by said first damper component, 
 said second damper component being displaceable between a respective first position for a ventilation mode wherein the second opening is unobstructed by said second damper component and a respective second position for a defrost mode wherein the second damper component closes off said second opening, 
   a displacement component for displacing said damper components between said respective first positions and said respective second positions   said displacement component comprising
 a damper displacement element comprising a crankshaft component having a longitudinal rotational axis and having a first damper interconnect element and a second damper interconnect element, said damper interconnect elements each being offset from said longitudinal rotational axis and 
 first and second damper connection elements, said first damper connection element being connected to the connector element of said first damper component and to the first damper interconnect element of said crankshaft component, said second damper connection element being connected to the connector element of said second damper component and to the second damper interconnect element of said crankshaft component, 
   wherein said crankshaft component, said connector elements of said damper components and said damper connection elements are configured such that each of said damper components is coupled to said crankshaft component such that rotation of said crankshaft component in a single direction is able to induce displacement of said first and second damper components from said respective first position thereof to said respective second position thereof.   
     
     
         2 . A damper assembly as defined in  claim 1  wherein said first and second damper connection elements are first and second push-pull damper connection elements. 
     
     
         3 . A damper assembly as defined in  claim 1  wherein said assembly includes an electric motor having a shaft coupled to said crankshaft component for rotation of the crankshaft component by the motor shaft about said longitudinal rotational axis thereof. 
     
     
         4 . A damper assembly as defined in  claim 2  wherein said assembly includes an electric motor having a shaft coupled to said crankshaft component for rotation of the crankshaft component by the motor shaft about said longitudinal rotational axis thereof. 
     
     
         5 . A damper assembly as defined in  claims 3  wherein said motor provides for rotation of said crankshaft in a single rotational direction. 
     
     
         6 . A damper assembly as defined in  claims 4  wherein said motor provides for rotation of said crankshaft in a single rotational direction. 
     
     
         7 . A damper assembly as defined in  claim 2  wherein each of said push-pull damper connection elements comprises a compression/tension spring element. 
     
     
         8 . A damper assembly as defined in  claim 4  wherein each of said push-pull damper connection elements comprises a compression/tension spring element. 
     
     
         9 . A damper assembly as defined in  claim 6  wherein each of said push-pull damper connection elements comprises a compression/tension spring element. 
     
     
         10 . A damper assembly as defined in  claim 1  wherein said first damper connection element is swivel connected to the connector element of said first damper component and to the first interconnect element of said crankshaft component, and said second damper connection element is swivel connected to the connector element of said second damper component and to the second interconnect element of said crankshaft component. 
     
     
         11 . A damper assembly as defined in  claim 2  wherein said first damper connection element is swivel connected to the connector element of said first damper component and to the first interconnect element of said crankshaft component, and said second damper connection element is swivel connected to the connector element of said second damper component and to the second interconnect element of said crankshaft component. 
     
     
         12 . A damper assembly as defined in  claim 8  wherein said first damper connection element is swivel connected to the connector element of said first damper component and to the first interconnect element of said crankshaft component, and said second damper connection element is swivel connected to the connector element of said second damper component and to the second interconnect element of said crankshaft component. 
     
     
         13 . A damper assembly as defined in  claim 1  wherein said first opening is a stale air output opening, said second opening is a fresh air input opening and said third opening is a defrost stale air recycle opening. 
     
     
         14 . A damper assembly as defined in  claim 11  wherein said first opening is a stale air output opening, said second opening is a fresh air input opening and said third opening is a defrost stale air recycle opening