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Method for producing cam profile of cam pack of camshaft, and camshaft

A technology of camshafts and cam groups, applied in valve drives, machines/engines, manufacturing tools, etc., can solve problems such as no description

Active Publication Date: 2017-08-29
THYSSENKRUPP PRESTA TECCENTER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the aforementioned document, such machining, in particular grinding of the contours of the individual cam elements with respect to the desired cam shape, is not described

Method used

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  • Method for producing cam profile of cam pack of camshaft, and camshaft
  • Method for producing cam profile of cam pack of camshaft, and camshaft
  • Method for producing cam profile of cam pack of camshaft, and camshaft

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Experimental program
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Embodiment Construction

[0042] exist Figure 1 to Figure 13 Components with the same function and mode of action are marked with the same reference numerals.

[0043] exist Figure 1 to Figure 3 A substantially known embodiment of a cam set 11 is shown in each case in a side view. The cam set 11 has at least one fixed cam element 20 with a substantially known fixed cam profile 20a and one adjusting cam element 30 with a substantially known adjusting cam profile 30a. exist figure 1 , the cam set 11 is located at the 0° split angle position, and in figure 2 The cam set 11 is shown in the maximum divergence angle position. This means that the adjusting cam element 30 has been diverged or rotated relative to the fixed cam element 20, wherein such a stepless setting of the angular position between the adjusting cam element 30 and the fixed cam element 20 takes into account the requirements of the internal combustion engine of the vehicle. and load conditions are thus advantageous. Within the scope ...

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PUM

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Abstract

The invention relates to a method for producing a cam profile of a cam pack of a cam shaft, said cam pack having at least two cam elements that can be adjusted in relation to each other, and to a camshaft, wherein the camshaft comprises an outer shaft, an inner shaft arranged concentrically within the outer shaft in such a way that the inner shaft can be rotated, and at least one fixed cam element connected to the outer shaft for conjoint rotation and one adjustment cam element connected to the inner shaft for conjoint rotation, wherein the method comprises at least the following steps: processing an adjustment cam contour of the adjustment cam element by means of the continuous diameter reduction of at least one segment of the adjustment cam base circle, wherein the adjustment cam base circle is reduced to a diameter that is smaller than a fixed cam nominal circle diameter minus a doubled adjustment cam base circle tolerance, and processing a fixed cam contour of the fixed cam element by reducing a fixed cam contour protrusion at least in a region between a transition point, upon the reaching of which a tapping element for converting a revolving motion of the cam elements into a linear motion of the valves is transferred from the fixed cam element to the adjustment cam element, and is placed to a processing point.

Description

technical field [0001] The invention relates to a method for producing a cam shape of a cam set of a camshaft having at least two relatively adjustable cam elements. Furthermore, the invention relates to a camshaft, in particular a rotatable camshaft, advantageously having at least a cam set of at least two relatively adjustable cam elements. Background technique [0002] The use of camshafts is basically known in the field of automotive technology, by means of which a rotational movement is converted into a longitudinal movement and thus an intake valve and / or an exhaust valve of an internal combustion engine is actuated. The advantageously assembled camshaft has, for example, an outer shaft and an inner shaft concentrically, in particular coaxially, rotatably arranged inside the outer shaft, and at least one fixed cam element connected in rotation fixedly to the outer shaft and a Rotate the fixedly connected adjustment cam element. It is also basically known that at leas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/047F01L1/08F01L13/00
CPCF01L1/047F01L1/08F01L13/0057F01L2001/0473F01L2303/00B24B19/12F01L1/34413
Inventor 马赛尔·魏道尔贝恩德·曼马里奥·林德纳
Owner THYSSENKRUPP PRESTA TECCENTER AG