Sliding cam system of reciprocating piston internal combustion engine with sliding grooves and guide elements arranged in x-shape

Abstract

The invention relates to a reciprocating piston internal combustion engine having at least one camshaft with at least one sliding cam element with sliding cams and sliding grooves (2 and 2a) intersecting in an X-shape, wherein the sliding cam element with internal teeth (4) is mounted for conjoint rotation but axially movably on a toothed shaft (5), and wherein a guide element is fixed between the sliding grooves (2 and 2a), which guide element has elastically movable switch blades (10 and 10a) that are guided on a rotary joint plate (12) mounted in the intersection area. The engine further comprises an actuator device with at least one actuator pin (9) movable out of a housing, wherein the actuator device can be mounted on a component of a cylinder head or on the cylinder head of the reciprocating piston internal combustion engine, and, after having moved out, the actuator pin (9) comes into connection with at least one sliding groove (2 or 2a) of the sliding cam element, said guide element being constructed as a C-shaped spring (6) and fixed, at least at the ends thereof, on the toothed shaft (5).

Description

technical field [0001] The invention relates to a reciprocating piston internal combustion engine having at least one camshaft with at least one sliding cam element with sliding cams and X-shaped intersecting sliding grooves, wherein the sliding cam element is fixed against rotation by means of internal toothing Arranged ground but axially displaceable on the pinion, and wherein between the sliding slots a guide element is fixed, said guide element having an elastically movable branching tongue, said branching tongue being mounted in the intersection area and the reciprocating piston internal combustion engine has an actuator device with at least one actuator pin movable out of the housing, wherein the actuator device can be fixed on the reciprocating piston internal combustion engine On the cylinder head of the cylinder head or fixed on a component of the cylinder head, and the actuator pin is connected with at least one sliding groove of the sliding cam element after it has ...

AI Technical Summary

Problems solved by technology

[0003] The problem with this guide element is that it has to be widened extremely wide in order to move over the base circle of the groove or slide by means of the free end of the branching tongue, so that plastic deformation of the guide element may be a concern

In addition, the guide element is only used on a small part of the inner circumference in the groove in the link bottom, so that the free branching tongue is designed to be extremely long, so that the guide force is reduced when the slide cam element moves

Even if the ends of the branching tongues are supported on the side walls of the X-shaped intersection area, there is the risk that the branching tongues are not allowed to bend on the free path before the support.

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