Integrated air flow adjuster for conventional air duct systems

Abstract

A ventilation unit intended to serve as a supply and/or exhaust unit integrated into an air duct system in a ventilation plant, includes at least two tube sections connectable with a common axis with mutually adapted dimensions, whereby at least one tube section constitutes a fixed part of the air duct system, at least one tube section is displaceable relative to at least one axially connected tube section, two tube sections connectable along their axis are mutually displaceable and form an overlap area at their connecting end parts, at least one of these tube sections has one or several openings in the tube wall at and/or next to the overlap area, and the flow of air through the openings that can be opened, can be regulated with respect to its magnitude and/or direction through displacement and/or rotation of the two mutually displaceable tube sections.

1 - 15 . (canceled) 
     
     
         16 . A ventilation unit intended to serve as at least one of a supply unit and an exhaust unit in an air duct system in a ventilation plant,
 characterized in that
 the ventilation unit comprises at least two sections of tube ( 1 ,  3 ) that can be connected with a common axis with mutually adapted dimensions, 
 at least one of the said sections of tube ( 3 ) constitutes a fixed part that is connected to the said air duct system, 
 at least one of the said sections of tube ( 1 ) can be displaced relative to at least one axially connected fixed section of tube ( 3 ), 
 two of the said sections of tube that can be connected along their axis are mutually displaceable and form an area of overlap ( 1 - 3 ) at their connecting end parts, whereby one of these sections of tube ( 3 ) has one or several openings ( 2 ) that can be opened in the wall of the tube next to the said area of overlap ( 1 - 3 ), and 
 the flow of air through the said one or several openings ( 2 ) that can be opened can be regulated with respect to both its magnitude and its direction, through displacement and rotation, respectively, of the displaceable sections of tube ( 1 ) in relation to the at least one fixed section of tube ( 3 ). 
   
     
     
         17 . The ventilation unit according to  claim 16 ,
 characterized in that
 the ventilation unit comprises at least three sections of tube ( 1 ,  3 ,  3 ) that can be connected with a common axis with mutually adapted dimensions, 
 at least two of the said sections of tube ( 3 ,  3 ) are constituted by fixed parts of the said air duct system and the third section of tube ( 1 ) constitutes an intermediate part that can be displaced through at least rotation, and that is provided with the said one or several openings ( 2 ) that can be opened ( 2 ) in the wall of the tube, and 
 the direction of the flow of air can be regulated through rotation of the displaceable section of tube ( 1 ). 
   
     
     
         18 . The ventilation unit according to  claim 17 ,
 characterized in that   the ventilation unit in addition comprises at least one further displaceable section of tube ( 5 ,  6 ,  8 ) arranged outside of one of the fixed sections of tube ( 3 ), whereby the additional section of tube ( 5 ,  6 ,  8 ) can be displaced and can cover or reveal openings ( 2 ) in the third section of tube ( 1 ), whereby also the magnitude of the flow of air can be regulated through displacement of the external section of tube ( 5 ,  6 ,  8 ).   
     
     
         19 . The ventilation unit according to  claim 16 ,
 characterized in that
 a first section of tube ( 1 ) is provided with the said one or several openings ( 2 ) in the wall of the tube that can be opened, and 
 at least one second section of tube ( 5 ,  6 ,  7 ,  8 ) is arranged outside of the said first section of tube with openings, whereby the second section of tube ( 5 ,  6 ,  7 ,  8 ) is displaceable and can be displaced and can cover or open the openings ( 2 ) in the first section of tube ( 1 ), whereby the flow of air can be regulated by displacement of the external section of tube ( 5 ,  6 ,  7 ,  8 ). 
   
     
     
         20 . The ventilation unit according to  claim 16 , whereby at least one of the sections of tube ( 1 ,  3 ) is provided with gaskets or spacer material ( 9 ) that seals a part of the compartment between the inner and the outer sections of tube. 
     
     
         21 . The ventilation unit according to  claim 16 , whereby the sections of tube ( 1 ,  3 ) have circular cross-sections. 
     
     
         22 . The ventilation unit according to  claim 16 , whereby the said displaceable section of tube ( 1 ) can be rotated relative to a connecting fixed section of tube ( 3 ), whereby the openings ( 2 ) in the wall of the tube are distributed in such a manner around the circumference of the rotatable section of tube that the principal direction of the flow of air through the wall of the tube is variable, through rotation of the displaceable section of tube ( 1 ) relative to the fixed section of tube ( 3 ). 
     
     
         23 . The ventilation unit according to  claim 16 , whereby the said openings ( 2 ) are constituted by nozzles that are either arranged in one or several longitudinal rows or distributed around the circumference in one or several axially distinct sections, or both arranged in one or several longitudinal rows and distributed around the circumference in one or several axially distinct sections. 
     
     
         24 . The ventilation unit according to  claim 16 , whereby a displaceable section of tube ( 1 ,  1 ′) can be mounted between two fixed sections of tube ( 3 ) that are components of an air duct system, such that two or more of the ventilation units can be mounted in series with each other. 
     
     
         25 . The ventilation unit according to  claim 16 ,
 characterized in that
 said displaceable section of tube ( 1 ) is connected to a fixed section of tube ( 3 ), and in that the displaceable section of tube ( 1 ) is provided with a cover that seals one end of the section of tube ( 1 ). 
   
     
     
         26 . An air duct system for a ventilation plant,
 characterized in that
 the air duct system comprises a first set of fixed sections of tube ( 3 ) and a second set of displaceable sections of tube ( 1 ), 
 of which the fixed sections of tube ( 3 ) have a first dimension and where at least certain of them are provided with an end part designed for the axial connection of the corresponding displaceable section of tube ( 1 ), which serves as a supply or withdrawal unit, and 
 the displaceable sections of tube ( 1 ) have a corresponding dimension that is adapted for connection to one or two of the said fixed sections of tube ( 3 ), and 
 the displaceable sections of tube ( 1 ) have one or several openings ( 2 ) that are open or that can be opened in the wall of the tube next to an area of overlap ( 1 - 3 ), 
 which openings ( 2 ) make possible the regulation of the flow of air, with respect to both its magnitude and direction, through the mutual displacement and rotation, of the relevant displaceable section of tube ( 1 ) relative to the fixed section of tube ( 3 ) connected to it. 
   
     
     
         27 . The air duct system according to  claim 26 , whereby at least certain of the displaceable sections of tube ( 1 ) are adapted at both ends for axial displacement and rotation relative to two separate fixed sections of tube ( 3 ,  3 ). 
     
     
         28 . The air duct system according to  claim 26 , whereby at least certain of the displaceable sections of tube ( 1 ) have a first end that can be axially connected and a second, closed, end. 
     
     
         29 . The air duct system according to  claim 26 , whereby both the fixed ( 3 ) and the displaceable ( 1 ) sections of tube have circular cross-sections, and whereby at least certain of the said displaceable sections of tube ( 1 ) can be rotated relative to a fixed section of tube ( 3 ) connected to it. 
     
     
         30 . The air duct system according to  claim 26 , whereby the ventilation unit is mounted with a ring structure or connected in series. 
     
     
         31 . The air duct system according to  claim 27 , whereby both the fixed ( 3 ) and the displaceable ( 1 ) sections of tube have circular cross-sections, and whereby at least certain of the said displaceable sections of tube ( 1 ) can be rotated relative to a fixed section of tube ( 3 ) connected to it. 
     
     
         32 . The air duct system according to  claim 28 , whereby both the fixed ( 3 ) and the displaceable ( 1 ) sections of tube have circular cross-sections, and whereby at least certain of the said displaceable sections of tube ( 1 ) can be rotated relative to a fixed section of tube ( 3 ) connected to it. 
     
     
         33 . The air duct system according to  claim 27 , whereby the ventilation unit is mounted with a ring structure or connected in series. 
     
     
         34 . The air duct system according to  claim 28 , whereby the ventilation unit is mounted with a ring structure or connected in series. 
     
     
         35 . The air duct system according to  claim 29 , whereby the ventilation unit is mounted with a ring structure or connected in series.