Stoves and furnaces – Stove hoods
Patent
1997-10-30
1998-09-08
Yeung, James C.
Stoves and furnaces
Stove hoods
126299D, 454906, F24C 1520
Patent
active
058030727
ABSTRACT:
A kitchen ventilator, including a collecting box (11) supporting on its upper side a fan casing (10) enclosing a chamber which, by means of an essentially vertical partition (21), delimits an inlet channel (23) and a fan housing with an outlet channel (18), respectively. The collecting box (11), via an outlet opening (19) provided in its upper wall, is connected to the inlet channel (23) and the fan housing contains an impeller (16) rotatable in a vertical plane. The inlet side of the impeller (16) is connected to the inlet channel (23) via an essentially circular opening (20) provided in the partition (21) and the outlet side of the impeller (16) is connected to the outlet channel (18). Each of the inlet and outlet channels (23,18) is formed in inserts (22,17) made of sound-absorbing material. The outlet opening (19) in the collecting box (11) is displaced laterally relative to the opening (20) in the partition (21) and the inlet channel (23) curves in the direction of rotation of the impeller (16) so that the incoming flow is deflected in the direction of rotation.
REFERENCES:
patent: 2061535 (1936-11-01), Davies
patent: 3688867 (1972-09-01), Antonetti et al.
patent: 4089328 (1978-05-01), Bergmark et al.
patent: 5027790 (1991-07-01), Sheng
patent: 5230327 (1993-07-01), Jang
patent: 5311857 (1994-05-01), Chang
patent: 5720274 (1998-02-01), Brunner et al.
Aktiebolaget Electrolux
Yeung James C.
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