(19)
(11) EP 0 654 648 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.11.1995 Bulletin 1995/44

(43) Date of publication A2:
24.05.1995 Bulletin 1995/21

(21) Application number: 94203059.4

(22) Date of filing: 20.10.1994
(51) International Patent Classification (IPC)6: F28F 9/02, F16L 37/084, F28F 9/04
(84) Designated Contracting States:
DE FR IT

(30) Priority: 24.11.1993 GB 9324184

(71) Applicant: GENERAL MOTORS CORPORATION
Detroit Michigan 48202 (US)

(72) Inventor:
  • van Hauten, Hartmut
    D-55268 Nieder-Olm (DE)

(74) Representative: Denton, Michael John et al
Patent Section 1st Floor Gideon House 28 Chapel Street
Luton Bedfordshire LU1 2SE
Luton Bedfordshire LU1 2SE (GB)


(56) References cited: : 
   
       


    (54) Heat exchanger


    (57) A heat exchanger includes a heat exchanger body (10) from which a connection duct (12) extends. The connection duct (12) includes and elastically deformable free end and two engaging walls (20) formed in respective rectangular apertures (18) proximate the free end of the duct (12). A coupling tube (14) for coupling the heat exchanger body (10) to a hose of an expansion tank includes a first portion (30) receivable in the connection duct (12) which includes two tangs (34) engageable with the engaging walls (20) to secure the coupling tube (14) within the connection duct (12), and a second portion (40) connectable to the expansion tank hose. A U-shaped recess (22) at the free end of the connection tube (12) engages a U-shaped locating portion (50) of the coupling tube (14) to align the coupling tube relative to the heat exchanger body (10).






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