Patent ID: 7677214

Claim:
A device ( 1 ) for deactivation of at least one cylinder of an internal combustion engine, whereby the device ( 1 ) is connected to a rocker lever ( 2 ) which is operatively connected via a first arm ( 3 ) to a valve lifter rod ( 5 ) and via a second arm ( 4 ) to an intake/exhaust valve ( 6 ) of the respective cylinder, the rocker lever ( 2 ) executes the oscillating tilting movement about a pivot axle ( 10 ) situated in the area of the connection to the cylinder head ( 9 ) in active cylinder operation and thus causes the intake/exhaust valve ( 6 ) of the cylinder to open/close, the device ( 1 ) is designed so that it permits the rocker lever ( 2 ) to be lifted up by the cylinder head ( 9 ) when the respective cylinder is deactivated, thereby displacing the pivot axle ( 10 ) in the direction of the connection of the rocker lever ( 2 ) to the intake/exhaust valve ( 6 ) of the respective cylinder, the device ( 1 ) is arranged essentially between the rocker lever ( 2 ) and the cylinder head ( 9 ), the device ( 1 ) comprises a guide element ( 11 ) that is fixedly connected to the cylinder head ( 9 ), a pivot axle element ( 12 ) arranged displaceably on the guide element ( 11 ) for pivotable mounting of the rocker lever ( 2 ), whereby the pivot axle element ( 12 ) can be locked for the active cylinder operation, a spring ( 15 ) stretched between two abutments ( 13 , 14 ), the first abutment ( 13 ) of which is fixedly connected to the guide element ( 11 ) and the second abutment ( 14 ) of which is fixedly connected to the pivot axle ( 10 ) and whereby this spring ( 15 ) prestresses the pivot axle element ( 12 ) in the direction of a locked position, wherein the pivot axle element ( 12 ) has a sliding element ( 17 ) which is designed in the form of a sleeve and has an opening ( 18 ) for a locking element ( 19 ) mounted on the cylinder head end, this opening being situated on its end area on the cylinder head end, the pivot axle element ( 12 ) ends with a cylinder half that forms the pivot axle ( 10 ) and is arranged across the axis of the sliding element ( 17 ) on the rocker lever end, whereby a lateral surface ( 16 ) of the cylinder half forms a sliding surface for the rocker lever ( 2 ), the guide element ( 11 ) is arranged coaxially inside the pivot axle element ( 12 ), the pivot axle element ( 12 ) is designed to be axially displaceable over the sleeve-shaped sliding element ( 17 ) in relation to the guide element ( 11 ), the locking element ( 19 ) is actuated by a switch mechanism ( 26 ).