Rocker arm arrangement for internal combustion engine
AssigneeINA-Schaeffler KG
InventorJohn Stallmann
Life of this patent
Estimating the term…
Abstract
A rocker arm (1) for a valve train of an internal combustion engine which is pivoted on a support pin (10) about its axis (9), whereby a push rod (7) contacts one end section (5), and the valve shaft (8) of a gas exchange valve contacts the other end section (6). The mounting of the rocker arm (1) on the support pin (10) takes place through two radial roller bearings (16) spaced at a distance from each other, whereby in a manner in accordance with the invention, an additional axial roller bearing (17, 18) is incorporated into the rocker arm bearing arrangement to prevent sliding friction.
Claims7
Rocker arm for a valve drive of an internal combustion engine which is pivoted through a bearing arrangement on a support pin, whereby the support pin is connected with a cylinder head through a support block, the rocker arm comprising a U-shaped metal element with at least two side walls that extend generally parallel to one another in a region of the support pin and have aligned holes, in each of which a radial roller bearing is located, an outer bearing ring of each of the radial roller bearings is arranged in a respective one of the holes, the side walls are connected to each other through at least one of an upper and a lower wall so that a valve shaft of a gas exchange valve contacts one end section of the rocker arm, and an axial roller bearing is arranged in connection with at least one of the radial roller bearings accommodated in the holes.
Dependencies are inferred from the claim text.