The servo motor actuates the inner threaded sleeve. A double thread washer is axially relocated by the inner threaded sleeve. The double thread washer consists of a single, self-locking thread on the inside and a multiple coarse thread on the outside. Additionally, it has drilled holes for the studs of the linear guide. The displacement of the double thread washer via a coarse thread, causes a rotation of the outside threaded sleeve, which is connected with the control chain. Due to that the camshaft’s phase changes relatively to the motor’s crankshaft. Version 1 is constructed for a sprocket and not sealed on behalf of future oil lubrications. The servo motor has to be connected via a coupling with drive thread sleeve the on the front side.
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This product has been patented.