Mechanical tappet in particular for a fuel pump of an internal combustion engine
AssigneeSchaeffler KG
InventorsNorbert Radinger, Manfred Jansen, Stefan Dorn, Norbert Geyer, Karsten Kucht
Life of this patent
Estimating the term…
Abstract
A mechanical tappet (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001) is provided, in particular for actuating the lifting of a pump piston (39) of a fuel pump of an internal combustion engine, with a sleeve-shaped tappet housing (102, 202, 302, 402, 502, 602, 702, 902, 1002) constructed as a shaped sheet-metal part and with a driving roller (6) supported so that it can rotate. Here, a bolt (4) supports the driving roller so that it is centered, and end sections (7) of the bolt projecting from the driving roller are supported in bolt eyes (8) of the tappet housing.
Claims24
Mechanical tappet for actuating lifting of a pump piston of a fuel pump of an internal combustion engine, the mechanical tappet comprising:
- a sleeve-shaped tappet housing which is constructed as a shaped sheet-metal part and which is supported with an essentially cylindrical outer casing surface in a tappet guide so that it can move longitudinally, and with a driving roller supported so that it can rotate, as well as with a stroke-transmission component, which is produced separate from the tappet housing and which is inserted into the tappet housing that has a driven-side contact surface for the pump piston, and the driving roller is centered and selectively supported via roller bodies on a bolt, with end sections of the bolt projecting from the driving roller are supported in bolt eyes of the tappet housing.
Dependencies are inferred from the claim text.