(19)
(11) EP 0 442 698 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.01.1992 Bulletin 1992/03

(43) Date of publication A2:
21.08.1991 Bulletin 1991/34

(21) Application number: 91301118.5

(22) Date of filing: 12.02.1991
(51) International Patent Classification (IPC)5F28F 3/02
(84) Designated Contracting States:
BE DE FR GB IT NL

(30) Priority: 14.02.1990 GB 9003370

(71) Applicant: IMI Marston Limited
Fordhouses, Wolverhampton WV10 6QJ (GB)

(72) Inventors:
  • Gregory, Edward Joseph
    Tettenhall, Wolverhampton, WV6 9DE (GB)
  • Felton, John
    Wellington, Telford Shropshire (GB)
  • Cooper, Frank Thomas, 15 Westering Parkway
    Wolverhampton WV10 8TS, West Midlands (GB)

(74) Representative: Parnham, Kevin et al
IMI plc, Patents & Licensing Department, P.O Box 216, Witton
Birmingham B6 7BA
Birmingham B6 7BA (GB)


(56) References cited: : 
   
       


    (54) Plate fin heat exchanger with self-locating ribbon fins


    (57) Typical plate fin heat exchangers 1 use inherently difficult to manufacture square and sine wave fin plates 12, 13, 14 and thus, the range of materials with which plate fin heat exchangers can be manufactured is curtailed a plate fin heat exchanger in which fins (25) are separately formed of self-standing or supporting strips. The fins (25) being constructed to have step or side projectioons (26, 27; 45, 46, 47, 48; 51, 52, 53) to ensure a self supporting nature whilst allowing the fins to be secured to parallel plates (2, 3, 4, 5) of the heat exchanger. These projections (26, 27; 45, 46, 47, 48; 51, 52, 53) also being arranged additionally to space the parallel plates (2, 3, 4, 5) or additional projections being provided solely for this function.







    Search report