Patent ID: 7941922

Claim:
A method for manufacturing a lightweight valve with a valve stem, a hollow valve cone and a valve disk closing the valve cone, the method comprising: producing a first one-piece component forming the valve disk with a force transmission element by casting, forming and/or a powder metallurgy method, the force transmission element including a first end integrally connected to a center of the valve disk and a second end defining a stop surface; producing a second one-piece component forming the valve stem and the valve cone, the second one-piece component having an inner wall defining a hollow space within the valve stem and the valve cone, the valve stem including an annular shoulder formed by a width increase of the hollow space into the inner wall; and joining the first and second components together by placing the force transmission element into the hollow space, bringing the stop surface of the force transmission element to bear against the annular shoulder and connecting the first and second components by at least one of a material, non-positive and positive connection.