Patent ID: 7661397

Claim:
A hydraulic camshaft adjuster ( 1 ) for a camshaft of an internal combustion engine, comprising: an inner body ( 2 ) which is connected to the camshaft in a rotationally fixed manner and has outwardly extending blades ( 9 , 9 . 1 ), an outer body ( 3 ) which extends around the inner body and is rotatable with respect to the inner body and the camshaft and has inwardly extending blades ( 7 , 7 . 1 ) mating with the outwardly extending blades ( 9 , 9 . 1 ) so as to form at least one hydraulic medium chamber ( 12 ) between adjacent blades and two cover plates ( 4 , 5 ) disposed at opposite sides of the inner body ( 2 ) and the outer body ( 3 ) and, upon complete assembly, firmly engaging the outer body ( 3 ), a driving connection from a crankshaft to the camshaft extending to one of the cover plates ( 4 ) and the outer body ( 3 ), and a locking device which locks the inner body ( 2 ) in relation to one of the cover plates ( 4 ) and the outer body ( 3 ) including at least one locking bolt ( 13 ) which is movably disposed in an opening ( 15 ) formed in the inner body ( 2 ) for engagement in a locking cavity ( 16 ) in one of the two cover plates ( 4 , 5 ), the outer body ( 3 ) with the inwardly extending blades ( 7 , 7 ′) being rotationally adjustably supported between the two cover plates ( 4 , 5 ), the blade ( 9 , 9 . 1 ) of the inner body ( 2 ) of the camshaft adjuster ( 1 ) having a base stop ( 17 ), and the locking cavity ( 16 ) formed in the one cover plate ( 4 ) additionally having an assembly stop ( 19 ).