Patent · US Active

Tappet for a valve train or a pump drive and method of making a tappet

US9046009B2 · kind B2 · utility

0Cited by

11References

10Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Christoph Ross · Bamberg, DE
Alexander Backer · Gräfenberg, DE
Josef Groschel · Gößweinstein, DE

Key dates

Filing date	May 28, 2013
Grant date	Jun 2, 2015
Priority date	—
Expiry date	May 28, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/8084
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A tappet for a valve train or a pump drive particularly a cup tappet (1) having a hollow cylindrical outer body on whose wall region (4) an anti-rotation element (9) is received in a window-type through-opening (15), the anti-rotation element (9) being seated through support surfaces (12, 13) of a head (10) on an outer diameter (14) of the wall region (4) and extending with a shank (11) projecting from the head (10) through said through-opening (15). The anti-rotation element (9) is fixed via a welded joint. In order to fix the anti-rotation element (9) with low manufacturing costs and, at the same time, with only an insignificant impairment of the outer body, the welded joint is made between the shank of the anti-rotation element (9) and an inner body that is received in the outer body and is connected to the outer body. A method of making a tappet of the aforesaid tappet is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.