Patent ID: 7610885

Claim:
A rotor and rotor housing for a camshaft adjuster for a motor vehicle engine, comprising a rotor with vanes extending radially outwardly from a rotor core received in a rotor housing having webs extending radially inwardly from a housing wall toward the rotor core such that chambers are formed between successive webs in which the rotor vanes engage, the contours of the rotor or housing or both the rotor and the housing being produced from a continuous casting or an extruded part made of a metal alloy; axially extending grooves in radially outward sides of said rotor vanes or in radially inward sides of said housing webs, or in both the radially outward sides of said rotor vanes and the radially inward sides of said housing webs, and axial through-holes in the webs of the rotor housing for receiving fasteners, being formed by continuous casting or extrusion, and wherein the rotor or the housing or both the rotor and the housing and at least four of the following contours are calibrated to required dimensions during the forming using a die: in the rotor, the grooves for seals that extend axially in the vanes on the radially outward side, in the rotor housing, the grooves for seals that extend axially in the webs on the radially inward side, in the rotor, a channel-shaped or tunnel-shaped opening that functions as an oil duct and extends at least approximately radially from one of the end faces in the area of one of the vanes and ends before reaching the outer extent of the vane, or: in the rotor housing, a channel-shaped or tunnel-shaped opening that functions as an oil duct and extends at least approximately radially in one of the webs from one of the end faces and ends before reaching the radial extent of the rotor housing web, and the through holes for fasteners.