(19)
(11) EP 0 466 455 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.11.1992 Bulletin 1992/47

(43) Date of publication A2:
15.01.1992 Bulletin 1992/03

(21) Application number: 91306217.0

(22) Date of filing: 09.07.1991
(51) International Patent Classification (IPC)5: F24F 11/04, F24F 3/052
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 12.07.1990 GB 9015378

(71) Applicant: SENIOR COLMAN LIMITED
Sale, Cheshire M33 1UL (GB)

(72) Inventor:
  • Valentine, Anthony
    Sale, Cheshire M33 5QP (GB)

(74) Representative: Quest, Barry et al
Wilson, Gunn, M'Caw, 41-51 Royal Exchange, Cross Street
Manchester M2 7BD
Manchester M2 7BD (GB)


(56) References cited: : 
   
       


    (54) Ventilation apparatus


    (57) A ventilation duct (10) discharges air through a diffuser (11) into a room. The diffuser (11) is connected to the duct (10) via a plenum chamber (13) and a variable constriction valve (14). The valve (14) is located between the duct (10) and the plenum chamber (13). The valve (14) may have a flap with a flat upstream surface (17) and a downstream surface (18) which is convexly curved away from the upstream surface (17). An automatic control system (42) may be provided to adjust the valve in dependence on temperature or pressure. Two ducts (100, 110) may be connected to the same diffuser (101), one duct supplying cold air and the other hot air so that the ventilation temperature can be adjusted.






    Search report