(19)
(11) EP 0 537 666 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.11.1993 Bulletin 1993/44

(43) Date of publication A2:
21.04.1993 Bulletin 1993/16

(21) Application number: 92117430.6

(22) Date of filing: 13.10.1992
(51) International Patent Classification (IPC)5: F25B 45/00, F04B 9/02, F04B 39/04
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 18.10.1991 US 778734

(71) Applicant: ENGINEERING & SALES ASSOCIATES, INC.
Springfield, Massachusetts 01107 (US)

(72) Inventors:
  • Scuderi, Carmelo J.
    Springfield, Massachusetts 01107 (US)
  • Forner, Charles K.
    Longmeadow, Massachusetts 01106 (US)

(74) Representative: Freylinger, Ernest T. 
Office de Brevets Ernest T. Freylinger 321, route d'Arlon Boîte Postale 48
L-8001 Strassen
L-8001 Strassen (LU)


(56) References cited: : 
   
       


    (54) Apparatus for recovering a refrigerant fluid


    (57) An apparatus for recovering a compressible refrigeration fluid from a refrigeration system (2) and delivering the recovered fluid to a receiver (6) includes a discriminator tank (12) for discriminating between influent liquid phase fluid and gas phase fluid. Liquid phase fluid is directed to the receiver (6). Gas phase fluid is condensed and directed to the receiver (6). The apparatus further includes a safety tank (64) for preventing overfilling of the receiver (6) and a lightweight compressor (32) particularly adapted to refrigerant recovery. The lightweight compressor includes self lubricating bidirectional seals and renders the recovery apparatus easily transportable to allow convenient field servicing of refrigeration systems.






    Search report