Air valve mechanism for two-cycle engine

(19)

(11)

EP 1 559 899 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	05.07.2006 Bulletin 2006/27

(43)	Date of publication A2:
	03.08.2005 Bulletin 2005/31

(21)	Application number: 03078818.6

(22)	Date of filing: 03.12.2003

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International Patent Classification (IPC):

F02M 17/00^(2006.01)
F02B 25/22^(2006.01)

F02B 17/00^(2006.01)

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

(71)	Applicant: Electrolux Home Products, Inc.
	Cleveland, Ohio 44135-0920 (US)

(72)	Inventors:
	Warfel, Paul A. Texarkana, Texas 75503 (US) Russ, Spencer D. Dekalb, Texas 75559 (US) Tynes, Rodney W. Shreveport, Louisiana 71118 (US)

(74)	Representative: Schmerer, Sven Erik et al
	c/o AB ELECTROLUX, Group Intellectual Property 105 45 Stockholm 105 45 Stockholm (SE)

(54)	Air valve mechanism for two-cycle engine

(57) A Carbureted two-cycle engine including an intake channel, a choke valve in the intake channel fixed to a pivotable choke valve shaft and lever, and a throttle valve in the intake channel fixed to a pivotable throttle valve shaft and lever. The engine includes an air channel in communication with fresh air, and an air valve fixed to a pivotable air valve shaft and lever. A piston within a cylinder of the engine includes a transfer port for intermittently connecting the intake channel and the air channel with a combustion chamber. An activating lever pivotably mounted to the air valve shaft transmits movement of the throttle lever to the air valve lever after a predetermined angle of rotation of the throttle lever. A fast idle latch is engagable by the choke lever to hold the throttle lever in a fast idle position until the throttle lever is separately moved.

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