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Camshaft adjuster arrangement and camshaft adjuster

A camshaft adjuster, camshaft technology, applied in mechanical equipment, machine/engine, engine components, etc., can solve the problem of central screw tightening, difficult screw head operation, etc., to achieve the effect of uniform distribution

Inactive Publication Date: 2013-04-10
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this embodiment has the disadvantage that high tightening torques for the screws are required
Furthermore, only relatively little space is available in the area of ​​the screw head of the central screw, making access to the screw head difficult, which makes tightening the central screw even more problematic

Method used

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  • Camshaft adjuster arrangement and camshaft adjuster
  • Camshaft adjuster arrangement and camshaft adjuster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] according to figure 1 and figure 2 The camshaft adjuster arrangement 2 includes a camshaft 4 and a rotor 6 for a camshaft adjuster, not shown in detail here, which is mounted on the camshaft 4 in a rotationally fixed manner. The camshaft adjuster is supplemented by a stator, not shown here, which is arranged concentrically in the rotor 6 .

[0021] The rotor 6 has a central bore 8 . An axially protruding cylindrical shoulder 10 is formed on the camshaft 4 and is introduced into the central bore 8 in the assembled state. The shoulder 10 is substantially hollow and has an internal thread 12 . The fastening of the rotor 6 on the camshaft 4 takes place via fastening elements, which in this case are central screws 14 screwed into the hollow shoulder 10 .

[0022] The tightening torque of the central screw 14 is reduced in such a way that the non-positive connection becomes a non-positive and frictional connection by using the tensioning sleeve 16 . In this embodiment, ...

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PUM

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Abstract

The invention relates to camshaft adjuster arrangement (2) comprising a camshaft (4) and a rotor (6) for a camshaft adjuster. The rotor (6) has a central bore (8) for a fixing element (14), said rotor being mounted on the camshaft (4) in a rotationally fixed manner by means of the fixing element (14). The mounting of the camshaft adjuster arrangement (2) is simplified by forming a frictional connection between the camshaft (4) and the rotor (6) by means of a clamping set (16).

Description

technical field [0001] The present invention relates to a camshaft adjuster installation comprising a camshaft and a rotor for a camshaft adjuster. Furthermore, the invention relates to a camshaft adjuster comprising a rotor and a stator which are arranged coaxially and are movable relative to each other. Background technique [0002] In internal combustion engines, in particular gasoline-powered motor vehicle engines, camshafts are used for actuating so-called gas exchange valves. The cams of a camshaft usually bear against a cam follower such as a tappet, a drag rod or a sway rod. If the camshaft rotates, the cam rolls on the cam follower, which in turn operates the gas exchange valve. Therefore, not only the opening duration and opening amplitude of the ventilation valve but also the opening and closing moments of the ventilation valve are determined by the position and shape of the cam. [0003] The angular displacement of the camshaft relative to the crankshaft for o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344F01L1/46
CPCF01L1/3442F01L1/46F01L2303/00Y10T403/7056F01L1/356
Inventor 维尔纳·瓦格纳
Owner SCHAEFFLER TECH AG & CO KG