Device for controlling the relative rotary position between a crankshaft and a camshaft
OwnerKai Lehmanninventor
Life of this patent
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Abstract
In a device for controlling the relative rotary positions of a crankshaft and a camshaft of an internal combustion engine, a drive wheel is connected to the camshaft by way of an angular position control mechanism including a planetary gear arrangement with an annular gear connected to, or part of, the drive wheel, a sun gear mounted on the camshaft and at least one planetary gear disposed between, and in engagement with, the annular gear and the sun gear and rotatably supported on a planetary gear carrier, which is rotatable over a certain angular range by a stationary servomotor for controlling the angular positions of the camshaft relative to the crankshaft.
Claims11
A device for controlling the relative rotary positions of a crankshaft and a camshaft of an internal combustion engine comprising a drive wheel connected to said camshaft by way of an angular position control mechanism including a planetary gear arrangement having an annular gear rotatable with said drive wheel, a sun gear mounted within said annular gear, and in radially spaced relationship therefrom, on said camshaft for rotation with said camshaft, a planet carrier supported so as to be rotatable about the camshaft axis, at least one planetary gear supported on said planet carrier and being disposed in the space between, and in engagement with, said annular gear and said sun gear, and a servomotor including an actuating gear mechanism engaging said planet carrier for rotating said planet carrier over a predetermined angular range for controlling the angular position of said camshaft relative to said crankshaft.
Dependencies are inferred from the claim text.