Internal combustion diesel engine with exhaust gases re-circulation, provided with a device for mixing the re-circulation gases

(19)

(11)

EP 0 857 870 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.05.1999 Bulletin 1999/19

(43)	Date of publication A2:
	12.08.1998 Bulletin 1998/33

(21)	Application number: 98830044.8

(22)	Date of filing: 30.01.1998

(51)	International Patent Classification (IPC)⁶: F02M 25/07

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

11.02.1997 IT TO970100

(71)	Applicant: C.R.F. Societa' Consortile per Azioni
	10043 Orbassano (Torino) (IT)

(72)	Inventors:
	Canale, Silvio C.R.F. Soc. Consortile per Azioni 10043 Orbassano (Torino) (IT) Bonetto, Germano C.R.F. Soc. Consortile per Azioni 10043 Orbassano (Torino) (IT)

(74)	Representative: Notaro, Giancarlo et al
	c/o Buzzi, Notaro & Antonielli d'Oulx srl, Corso Fiume 6 10133 Torino 10133 Torino (IT)

(54)	Internal combustion diesel engine with exhaust gases re-circulation, provided with a device for mixing the re-circulation gases

(57) In an internal combustion Diesel engine, a conduit (8) for re-circulation of the exhaust gases into the intake manifold (4) opens on an annular chamber (9) surrounding a portion (10) of the inlet conduit (5) of the intake manifold (4) which is communicated to the latter through a plurality of apertures (11). Preferably this conduit portion (10) of the intake manifold is in form of a Venturi conduit.

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