Rocker arm of an internal combustion engine valve train

Abstract

The invention relates to a rocker arm of an internal combustion engine valve train, comprising a rocker body (1) made of plate material, the rocker body has two side walls (2, 3) connected by a beam (4), the side walls The wall has two mutually aligned holes (6, 7) in the middle (5) for pivotable mounting on an axle. In order to achieve a more reliable guidance of the rocker arm on the shaft at low cost, a shaft bearing in the form of a half bearing shell (8) aligned with the holes (6, 7) is integrated in the cross member (4).

Description

technical field [0001] The invention relates to a rocker arm of a valve train of an internal combustion engine, which comprises a rocker body made of sheet material, which has two side walls connected by cross beams, and the side walls have two mutually aligned holes in the middle for Swingably mounted on a shaft. Background technique [0002] Rocker arms made of sheet metal are known as cam followers for valve control of internal combustion engines in motor vehicles. They are especially suitable for small engines such as those found in two-wheeled vehicles or small equipment. Their main advantage over conventional rocker arms made of castings or forgings is their lower production costs, machining costs and weight. In addition, they can be easily adapted to narrow or overlapping structural space conditions. [0003] According to a conventional construction, the structure mainly consists of two sides connected by beams, thus forming a U-shaped or H-shaped cross-section. A...

AI Technical Summary

Problems solved by technology

[0009] The disadvantage here is the high costs and processing effort due to the additional pipe section and its fastening on the rocker arm

If there is no pipe section, ie with the described integral bearing bushing, at least if the roller bearings are omitted, as already mentioned, problems of guiding accuracy with as little wear as possible arise

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