Process for obtaining a valve seat

(19)

(11)

EP 0 275 841 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	31.01.1990 Bulletin 1990/05

(43)	Date of publication A2:
	27.07.1988 Bulletin 1988/30

(21)	Application number: 87830446.8

(22)	Date of filing: 17.12.1987

(51)	International Patent Classification (IPC)⁴: F01L 3/02, F02F 1/42

(84)	Designated Contracting States:
	DE ES FR GB SE

(30)

Priority:

23.12.1986 IT 6796386

(71)	Applicant: FIAT AUTO S.p.A.
	I-10135 Torino (IT)

(72)	Inventor:
	Joli, Luigi I-10100 Sangano (Torino) (IT)

(56)

References cited: :

(54)	Process for obtaining a valve seat

(57) The invention concerns a process for obtaining a valve seat (3) in an intake duct of an internal combustion engine in which the finishing milling of the duct is eliminated, thus obtaining improvements in engine performance.

Search report