Method for producing a one-piece evaporator for refrigeration circuits, and the evaporator obtained

(19)

(11)

EP 0 917 919 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	11.04.2001 Bulletin 2001/15

(43)	Date of publication A2:
	26.05.1999 Bulletin 1999/21

(21)	Application number: 98119923.5

(22)	Date of filing: 21.10.1998

(51)	International Patent Classification (IPC)⁷: B21D 53/02, F25B 39/02, F28F 1/22

(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:

06.11.1997 IT MI972486

(71)	Applicant: WHIRLPOOL CORPORATION
	Benton Harbor Michigan 49022 (US)

(72)	Inventor:
	Gasperini, Sergio, c/o Whirlpool Europe S.r.l. 21025 Comerio (IT)

(74)	Representative: Guerci, Alessandro
	Whirlpool Europe S.r.l. Patent Department Viale G. Borghi 27 21025 Comerio (VA) 21025 Comerio (VA) (IT)

(54)	Method for producing a one-piece evaporator for refrigeration circuits, and the evaporator obtained

(57) The method comprises dividing one and the same hairpin coil (2), fixed between two conductive sheets (3, 4), into two sections (G, F) of different refrigeration power by providing a separation cut (10) between the sheets (3, 4) in a position in which the hairpin coil (2) comprises greater-length rectilinear portions (2'A). That part of said longer portions which projects from the sheets (3, 4) is bent to flank one side of said sheets. The evaporator comprises two sections (G, F) of different refrigeration capacity, formed from one and the same hairpin coil (2) which at the point in which said sections join together comprises a loop bent towards one side of said sheets (3, 4).

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