Patent ID: 8550046
Filing Date: 2013-10-08
Classification: F01L

Abstract:
1. A hydraulic camshaft adjuster for a camshaft of an internal combustion engine, with an outer body which can be driven by means of a crankshaft of the internal combustion engine and has at least one hydraulic chamber, and an inner body which is arranged on the inside of the outer body, can be fixedly connected to the camshaft and has at least one pivoting vane which extends in the radial direction into the hydraulic chamber and divides the hydraulic chamber into a first working chamber and a second working chamber, wherein the inner body has at least one oil inlet and oil outlet conduit extending from a casing interior to a casing exterior of the inner body and as far as one of the two working chambers, wherein the inner body can be pivoted in relation to the outer body in order to adjust the camshaft by production of a controlled hydraulic pressure in the oil inlet and oil outlet conduit and in one of the working chambers, characterized in that the inner body is fitted together at least from a first element and a second element, the two elements each having at least one geometry on mutually facing end sides, said geometry together with the respective other element forming the oil inlet and oil outlet conduit of the inner part; and the two fitted-together elements are of identical design and each have at least one projection which extends from the casing interior as far as the casing exterior, engages, in order to connect the two elements, in a form-fitting manner in a corresponding recess in the respective other element and, in the process, forms a press fit with the recess, the two projections together with the associated recesses each forming an oil inlet and oil outlet conduit of the inner part.