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AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorJosef Thoma
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In an arrangement for the relative angular position change of two shafts drivingly connected with each other, especially between a crankshaft supported in an engine housing of an internal combustion engine and a cam shaft, the cam shaft is equipped with a driving gear which is angularly movably arranged relative to the cam shaft by way of an axially displaceable coupling member. An actuating mechanism for the axial displacement of the coupling member for an angular position change of the cam shaft relative to the driving gear and therewith to the crankshaft is arranged structurally separate from the cam shaft at a detachable engine housing cover. The actuating mechanism includes a hydraulically double-acting piston in a cylinder. The piston is detachably connected with a coupling rod whereby the coupling rod, in its turn, cooperates with the coupling member by way of a joint having three degrees of freedom. Additionally, the piston is guided with its sealing shank in the cylinder exclusively by way of sealing rings. The actuating mechanism is supplied from a hydraulic system separate from the internal combustion engine, which includes an accumulator containing the hydraulic medium under pressure, by way of lines in the engine housing cover.
An arrangement for the relative angular position change of two shafts drivingly connected with each other, comprising adjusting means and actuating means, the adjusting means including a movably arranged coupling member effecting a non-rotatable connection by way of form-locking guide means of one of said shafts and a coordinated driving gear, said coupling member being in operative form-locking engagement for an angular position change by axial displacement of said guide means, the coupling member being operatively connected on its shaft side with one of said guide means arranged in a guided end area of the shaft within an aperture means, the aperture means of said shaft including additionally a bearing bore for a hub of the driving gear, the hub being of tubular-like shape and being provided along the inside with said one of said guide means, which are operatively connected with another guide means arranged adjacent in said one shaft by way of the coupling member, said coupling member being operable to be coupled with the actuating means which is structurally separate from the adjusting means and includes a coupling rod operatively connected with the coupling member by way of a joint means having three degrees of freedom,
An arrangement for the relative angular position change of two shaft drivingly connected with each other, especially of a crankshaft supported in an engine housing of an internal combustion engine and a cam shaft, the cam shaft including a driving gear engine which is angularly movably arranged relative top the cam shaft by way of an axially displaceable coupling member, comprising an actuating means for the axial displacement of the coupling member for an angular position change of the cam shaft relative to the driving gear and therewith to the crankshaft, a detachable engine housing cover means, said actuating means being structurally from the cam shaft at said detachable engine housing cover means, the actuating means including a hydraulically double-acting piston in a cylinder, the piston being detachably connected with a coupling rod, and the coupling rod, in its turn, cooperating with the coupling member by way of a joint means having three degrees of freedom,
An arrangement for the relative angular position change of two shaft drivingly connected with each other, especially of a crankshaft supported in an engine housing of an internal combustion engine and a cam shaft, the cam shaft including a driving gear which is angularly movably arranged relative to the cam shaft by way of an axially displaceable coupling member, comprising an actuating means for the axial displacement of the coupling member for an angular position change of the cam shaft relative to the driving gear and therewith to the crankshaft, said actuating means being structurally separate from the cam shaft and the actuating means including a hydraulically double-acting piston in a cylinder, the piston being detachably connected with a coupling rod, and the coupling rod, in its turn, cooperating with the coupling member by way of a joint means having three degrees of freedom,
Dependencies are inferred from the claim text.