Bucket tappet and method for producing same
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United States of America Patent
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Sep 4, 2018
Grant Date -
Mar 23, 2017
app pub date -
Jun 16, 2015
filing date -
Aug 26, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a bucket tappet for an internal combustion engine, having a tappet housing with a hollow cylindrical bucket skirt and a bucket base which closes one side of the bucket skirt and on which the bucket skirt is formed by cold forming a steel blank without cutting. The outside of the bucket base is used as a contact surface for an internal combustion engine cam which transfer a stroke movement to the bucket tappet, and the outside of the bucket skirt is used as a contact surface for an internal combustion engine guide bore which supports the bucket tappet in the stroke direction. The aim of the invention is to develop a bucket tappet of the aforementioned type and a method for producing same with respect to reduced production costs. This is achieved in that the unmachined and uncoated cam contact surface of the bucket base is machined using a brushing tool and no additional mechanical machining of the cam contact surface is carried out.
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