METHOD OF MANUFACTURE OF AIR DUCT AND AIR DUCT MANUFACTURED BY THIS METHOD Russian patent published in 2005 - IPC

FIELD: ventilation and air-conditioning systems; methods of manufacture of air ducts; power engineering; farming.

SUBSTANCE: proposed method includes manufacture of inner cavity, framework in form of separate perforated tubes brought in contact with each other and connection of these tubes by means of connecting members; provision is made for additional perforated tubes of arbitrary geometric form in section and in plan for sealing-up the inner cavity; additional perforated tubes are brought in contact with each other and with perforated tubes of framework. Proposed air duct has inner cavity and framework in form of separate perforated tubes engageable with each other and fastened by means of connecting member. Air duct is provided with additional perforated tubes of arbitrary geometric form in section and in plan which are located in inner cavity and are communicated with each other and with perforated tubes of framework.

EFFECT: extended functional capabilities; increased degree of unification and standardization of air duct.

3 cl, 2 dwg