ROOF FAN Russian patent published in 2006 - IPC F04D17/16 

Abstract RU 2272936 C1

FIELD: pumping engineering.

SUBSTANCE: roof fan comprises housing (1), motor (2), working wheel (3) with blades (11), main disk (9), covering disk (10), and ring space between disk (10) and sucking branch pipe (4). Housing (1) is connected with cap (5) provided with flaps (7) through frame (20). The flaps are mounted at an angle of ≤ 60° to axis (8) of wheel (3) and rotate around axis (23) in operation of the fan. According to the first version, the width H of blades (11), which is equal to the distance between disks (9) and (10) at the maximum diameter D of circumference described by blades (11) and minimum distance B between the walls of housing (1) are H ≥ 0.25D and B = (1.05-1.5)D. According to the second version, housing (1) is provided with ring panel (13) to define space (16) and the parameters of the fan are the following: H ≥ 0.35D, L = (0.01-0.1)H, d = (0.05-0.1)D, and B = (1.05-1.5)D, where L is the overlapping of blades (11) by edge (14) and d is the distance from blades (11) to edge (14).

EFFECT: damped noise and reduced sized.

17 cl, 8 dwg

Similar patents RU2272936C1

Title Year Author Number
ROOF SMOKE EXHAUSTER 2005
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2294459C1
CENTRIFUGAL FAN 1998
  • Karadzhi V.G.
RU2135837C1
HEATED AIR CURTAIN 2001
  • Karadzhi V.G.
  • Moskovko Ju.G.
RU2213911C2
CHANNEL VENTILATOR (VARIANTS) 2005
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2287091C1
CHANNEL FAN 2005
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2289728C1
CENTRIFUGAL FAN 2002
  • Karadzhi V.G.
  • Moskovko Ju.G.
RU2215195C1
FAN SET 2005
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2285824C1
PLENUM DUCT TYPE VENTILATING SYSTEM 2005
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2290568C1
CENTRIFUGAL FAN (VERSIONS) 2007
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2330188C1
CENTRIFUGAL FAN (VERSIONS) 2006
  • Karadzhi Vjacheslav Georgievich
  • Moskovko Jurij Georgievich
RU2338931C2

RU 2 272 936 C1

Authors

Karadzhi Vjacheslav Georgievich

Moskovko Jurij Georgievich

Dates

2006-03-27Published

2004-09-02Filed