Suction hood

Abstract

The invention relates to a suction hood, a) which sucks air from a first area to a second area, b) wherein the hood comprises b1) a first sucking means ( 64 ) which pulls the air to the suction hood by generating an at least substantially direct suction to the suction hood and b2) a second sucking means ( 62 ) which pulls the air to the suction hood by generating an at least substantially circular, cyclone or helix movement and a method for generating a air suction by means of a suction hood.

1 . Suction hood,
 a) which sucks air from a first area to a second area,   b) wherein the hood comprises
 b1) a first sucking means ( 64 ) which pulls the air to the suction hood by generating an at least substantially direct suction to the suction hood and 
 b2) a second sucking means ( 62 ) which pulls the air to the suction hood by generating an at least substantially circular, cyclone or helix movement. 
   
     
     
         2 . Suction hood according to  claim 1 , wherein the second sucking means ( 62 ) is operated or operatable in a boost mode, so that the second sucking means ( 62 ) temporarily boosts the suction of the first sucking means ( 64 ). 
     
     
         3 . Suction hood according to  claim 1 , wherein the first ( 64 ) and the second ( 62 ) sucking means are operated or operatable in a pulse working mode and/or alternatively. 
     
     
         4 . Suction hood according to  claim 1 , wherein the first ( 64 ) and the second ( 62 ) sucking means are operated or operatable together, so that the second sucking means ( 62 ) continuously boosts the suction of the first sucking means ( 64 ). 
     
     
         5 . Suction hood according to  claim 1 , wherein an outer suction area ( 634 ) surrounds an inner suction area ( 631 ) wherein preferably a) the first sucking means ( 64 ) sucks the air to the suction hood mostly through the outer suction area ( 634 ) and/or b) the second sucking means ( 62 ) pulls the air to the suction hood at least substantially uniformly through the outer suction area ( 634 ) and the inner suction area ( 631 ). 
     
     
         6 . Suction hood according to  claim 1 , wherein the air for operating the second sucking means ( 62 ) , which is preferably a vortex module, is sucked in laterally, preferably
 a) through lateral openings ( 601 ,  602 ) and/or   b) from the outer suction area ( 634 ).   
     
     
         7 . Suction hood according to  claim 1 ,
 a) wherein the second sucking means ( 62 ) is added or addable by a adding means, preferably dependent on noise, efficiency and/or fumes,   b) wherein the adding means is preferably a switch and/or a sensor driven device.   
     
     
         8 . Suction hood according to  claim 1 ,
 a) wherein the second sucking means ( 62 ) is a tornado suction hood and/or   b) wherein the first sucking means ( 64 ) is a standard suction hood.   
     
     
         9 . Suction hood according to  claim 1 , wherein the suction hood is
 a) a vented suction hood, wherein preferably the first area is inside a room and the second area is outside the room, and/or   b) a recirculating suction hood, wherein preferably the first area is inside a room and the second area is inside the room.   
     
     
         10 . (canceled)