(19)
(11) EP 0 887 611 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.11.1999 Bulletin 1999/47

(43) Date of publication A2:
30.12.1998 Bulletin 1998/53

(21) Application number: 98304365.4

(22) Date of filing: 02.06.1998
(51) International Patent Classification (IPC)6: F28F 9/02, F28F 27/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 27.06.1997 JP 187452/97

(71) Applicant: Sanden Corporation
Isesaki-shi, Gunma 372-8502 (JP)

(72) Inventor:
  • Shimmura, Toshiharu
    Isesaki-shi, Gunma, 372-8502 (JP)

(74) Representative: Jackson, Peter Arthur 
GILL JENNINGS & EVERY Broadgate House 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) Heat exchanger


(57) A heat exchanger has tubes (4) protruding into a tank (3) containing a flow reducing plate (10) which has a constricting hole (9). In order to minimise noise at a critical flow velocity the position of the hole is related to the maximum protrusion of the tubes so that flow passing through the hole does not impinge directly on the tubes.






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