Cup tappet
AssigneeINA-Schaeffler KG
InventorsWerner Bretting, Hans Monius
Life of this patent
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Abstract
The cup tappet (1) of the invention for a valve train of an internal combustion engine comprises a hollow cylindrical skirt (2) whose one end (3) is connected to a bottom (5) for making contact with a cam. The skirt (2) has a clearly smaller height than the overall height of the cup tappet (1), and the bottom (5) rises in a roof-like taper from said end (3). By virtue of this configuration, the bottom (5) has a very high rigidity, so that it is possible to minimize its thickness ‘d’ significantly compared to thicknesses of prior art cup tappet bottoms.
Claims13
A cup tappet for a valve train of an internal combustion engine, said cup tappet comprising a hollow cylindrical skirt whose one end is connected to a bottom for making contact with a cam, wherein a height of the skirt is clearly smaller than an overall height of the cup tappet, and the bottom rises in a roof-like taper from said end of the skirt.
A cup tappet for a valve train of an internal combustion engine, said cup tappet comprising a hollow cylindrical skirt whose one end is connected to a bottom for making contact with a cam, wherein the bottom has a thickness ‘d’ in a range of 1.1 mm<d<1.85 mm.
A cup tappet for a valve train of an internal combustion engine, said cup tappet comprising a hollow cylindrical skirt whose one end is connected to a bottom for making contact with a cam, wherein the bottom has a thickness ‘d’ of approximately 1.2 mm.
Dependencies are inferred from the claim text.