Two-stroke internal combustion engine, in particular for portable tools such as power saws, bush cutters, etc...

(19)

(11)

EP 1 555 402 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.07.2009 Bulletin 2009/30

(43)	Date of publication A2:
	20.07.2005 Bulletin 2005/29

(21)	Application number: 05000886.1

(22)	Date of filing: 18.01.2005

(51)

International Patent Classification (IPC):

F02B 25/02^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR LV MK YU

(30)

Priority:

19.01.2004 IT ve20040002 U

(71)	Applicant: Euromotor S.P.A.
	31015 Conegliano (Treviso) (IT)

(72)	Inventor:
	Possamai, Mirko 31015 Conegliano (IT)

(74)	Representative: Piovesana, Paolo
	Via F. Baracca, 5/a 30173 Venezia-Mestre 30173 Venezia-Mestre (IT)

(54)	Two-stroke internal combustion engine, in particular for portable tools such as power saws, bush cutters, etc...

(57) A two-stroke internal combustion engine, in particular for portable tools such as power saws, bush cutters, etc., comprising a bed (2) in which for the reciprocating piston (8) at least one chamber (44) is provided to which the mixture inlet port (20) and the spent gas outlet port (30) are connected, characterised in that the spent gas outlet port (30) is provided with a valve (32), the opening and closure of which are controlled by the rotation of the piston crankshaft (16).

Search report