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Camshaft adjuster for an internal combustion engine

A technology of camshaft adjusters and internal combustion engines, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of costly processing driven wheels, etc., and achieve the effect of increasing the load-bearing ratio and prolonging the service life

Inactive Publication Date: 2015-07-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although this refinement enables secure positioning of the adapter, the inner peripheral surface of the driven wheel must be machined in a complex manner in order to provide the required receiving section for the adapter

Method used

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  • Camshaft adjuster for an internal combustion engine
  • Camshaft adjuster for an internal combustion engine
  • Camshaft adjuster for an internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 The driven wheel 1 is shown in three dimensions. The output gear 1 is designed annularly as a ring gear and has an internal toothing 5 on its inner circumference 3 . In the assembled state the adapter can be attached to the driven wheel 1 via the internal toothing 5 . For this, in Figure 3 to Figure 6 There is a detailed description in .

[0034] The internal toothing 5 is formed not only axially through the inner circumference 3 of the driven gear 1 but also distributed around the entire inner circumference 3 of the driven gear 1 . This results in a general geometry which makes it possible to introduce the internal toothing 5 into the inner peripheral surface 3 of the driven wheel 1 in a simple manner by means of a broaching process. Since no separate receiving section for the adapter is necessary, the production of the internal toothing 5 is facilitated. An enlarged broaching length results on the inner peripheral surface 3 , which enables a safe introd...

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PUM

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Abstract

A camshaft adjuster (31) for an internal combustion engine, including a drive pinion (33) that can be connected rotationally fast to a crankshaft, a driven pinion (1) with an inner gearing (5) and arranged for rotation relative to the drive pinion (33) about an axis of rotation (37) as well as an adapter (13) that is arranged on an inner circumference (3) of the driven pinion (1) and through which the driven pinion (1) can be connected rotationally fast to a camshaft. For this purpose, the adapter (13) is fixed via the inner gearing (5) on the inner circumference (3) of the driven pinion (1). A fixing of this type enables manufacturing of a camshaft adjuster (31) with the lowest possible complexity of fabrication and correspondingly low costs.

Description

technical field [0001] The invention relates to a camshaft adjuster for an internal combustion engine, comprising a drive wheel rotatably connected to a crankshaft, a driven wheel with an internal toothing arranged rotatably relative to the drive wheel about an axis of rotation , and an adapter (Adapter), which is arranged on the inner peripheral surface of the driven wheel and through which the driven wheel can be connected to the camshaft in a rotationally fixed manner. Background technique [0002] Camshaft adjusters are used for targeted adjustment of the phase between the camshaft and the crankshaft in internal combustion engines and enable optimal adjustment of the valve timings via the motor load and the motor speed. As a result, a significant reduction in fuel consumption and exhaust emissions as well as an increase in motor performance can be achieved. [0003] During the development of economical and low-emission internal combustion engines, electromechanical cams...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/352
CPCF01L1/344F01L1/352F01L1/34F02F1/24F16H1/10F16H1/36F16H57/02F16H57/04
Inventor 阿明·布劳恩
Owner SCHAEFFLER TECH AG & CO KG