Tool and method for the finishing of valve seats and guides
AssigneeMapal Fabrik fur Prazision-Swerkzeuge Dr. Kress KG
InventorsDieter Kress, Friedrich Haberle
Life of this patent
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Abstract
It is proposed to provide a tool for the final machining of a valve seat and valve guide in a cylinder block of a combustion engine of a motor vehicle, said tool having a first section with at least one first blade for machining the valve seat and a second section with at least one second blade for machining the valve guide. The tool is characterized in that a separation site (13) is provided between the first section (5) and the second section (9), said separation site comprising a cone (15) and a conical recess (17) capable of receiving said cone.
Claims7
Tool for final machining of a valve seat and valve guide in the cylinder block of a combustion engine of a motor vehicle, said tool having a first section provided with at least one first blade for machining the valve seat and a second section provided with at least one second blade for machining the valve guide, characterized in that a separation site (13) is provided between the first section (5) and the second section (9), said separation site comprising a cone (15) and a conical recess (17) capable of receiving said cone.
Tool according to one of the preceding claims, characterized in that the sections (5, 9) of the tool (1) can be made of different materials, steel preferably being used for the first section (5) and hard metal for the second section (9).
Tool according to one of the preceding claims, characterized in that the second section (9) has a widened region (22) which is preferably adjacent to the separation site (13).
Dependencies are inferred from the claim text.