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Rotor for a camshaft adjuster and camshaft adjuster

A technology of camshaft adjusters and rotors, which is applied in the direction of machines/engines, engine components, mechanical equipment, etc., and can solve problems such as increasing costs

Inactive Publication Date: 2015-02-11
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although all the aforementioned embodiments for the rotor reduce the leakage inside the camshaft adjuster, the separate sealing element disadvantageously increases the production technically with additional outlay and further costs

Method used

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  • Rotor for a camshaft adjuster and camshaft adjuster
  • Rotor for a camshaft adjuster and camshaft adjuster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 A rotor 1 for a camshaft adjuster is shown in cross section. The rotor 1 has a rotor base body 3 with four rotor blades 5 extending radially outward. In the installed state, when the rotor 1 is positioned in the stator, the rotor blades 5 serve to divide the individual pressure chambers of the camshaft adjuster into two adjacent hydraulic regions. exist Figure 4 The camshaft adjuster is shown in .

[0038] The rotor base body 3 and the rotor blades 5 are produced in one piece from a metallic material by a sintering method. In contrast to the two-part production in which the rotor blades 5 are held, for example, in grooves in the rotor base body 3 , possible leak locations are minimized by the one-piece approach. In addition, the sintering method offers the possibility to utilize automated process flows and thus is cheap and easy to implement. Due to the dimensional accuracy of the method, the rotor 1 can be produced such that the radial leakage gap betwe...

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PUM

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Abstract

A rotor (1, 21, 41) for a camshaft adjuster (61), having a rotor base body (3, 23, 43) and a number of rotor blades (5, 25, 45) extending radially outwards and located on the rotor base body (3, 23, 43), each of the blades having a blade end (7, 27, 47). To reduce leakage, the blade ends (7, 27, 47) of the rotor blades (5, 25, 45) take the form of sealing fins (9, 31, 49) that can be deformed radially outwards. A rotor (1, 21, 41) of this type affords the possibility of reducing leakage in a camshaft adjuster (61) using simple engineering and without added costs. The invention also relates to a camshaft adjuster (61) for an internal combustion engine, including a rotor (1, 21, 41) of this type.

Description

technical field [0001] The invention relates to a rotor for a camshaft adjuster having a rotor base body and a number of rotor blades arranged on the rotor base body and extending radially outward. Furthermore, the invention relates to a camshaft adjuster with such a rotor. Background technique [0002] The rotor is used to assist in the targeted adjustment of the phase between the camshaft and the crankshaft in an internal combustion engine. For this purpose, it is usually held as part of the camshaft adjuster in a stator connected to the crankshaft in a rotationally fixed manner. In the assembled state, the rotor is connected to the camshaft in a rotationally fixed manner and can be adjusted relative to the stator, so that a rotation of the camshaft relative to the stator within a predetermined angular range can be achieved. In this way, for example, the power of the internal combustion engine can be increased in a targeted manner or the fuel consumption of the internal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L1/356F01L2001/34479
Inventor 阿明·布劳恩
Owner SCHAEFFLER TECH AG & CO KG