A single shaft timing system, particularly for internal combustion engines

(19)

(11)

EP 0 686 754 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	10.04.1996 Bulletin 1996/15

(43)	Date of publication A2:
	13.12.1995 Bulletin 1995/50

(21)	Application number: 95201083.3

(22)	Date of filing: 27.04.1995

(51)	International Patent Classification (IPC)⁶: F01L 1/344

(84)	Designated Contracting States:
	DE FR IT

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Priority:

12.05.1994 IT PD940087

(71)	Applicant: CARRARO S.P.A.
	I-35011 Campodarsego (Padova) (IT)

(72)	Inventors:
	Dallara, Guido I-33100 Udine (IT) Ninzatti, Roberto I-34170 Gorizia (IT) Valent, Franco I-34170 Gorizia (IT)

(74)	Representative: Cantaluppi, Stefano et al
	c/o JACOBACCI & PERANI S.p.A. Via Berchet, 9 35131 Padova 35131 Padova (IT)

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References cited: :

(54)	A single shaft timing system, particularly for internal combustion engines

(57) The timing system (1) described comprises a unitary, tubular camshaft (2) and a phase variator (3) operatively associated therewith for varying the phase angle between first and second sets of cams (41a-d; 5a-d) of the shaft (2); the cams of the second sel and of the first set are fixed for rotation with the camshaft and with an operating shaft (51) of the variator (3), respectively, so that a variation of the phase angle between the cams of the sets (4a-d; 5a-d) is brought about as a result of the active operation of the variator (3).

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