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Hydraulic camshaft adjuster, at least two-piece rotor and method for manufacturing a rotor for a hydraulic camshaft adjuster

A camshaft adjuster, hydraulic technology, applied in the direction of engine components, machines/engines, valve devices, etc., can solve problems such as not achieving cost ratio

Inactive Publication Date: 2019-07-09
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a cost ratio compared to a one-piece rotor cannot be achieved since, for example, in the case of a one-piece rotor, a larger pressing machine with increased pressing forces would have to be used

Method used

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  • Hydraulic camshaft adjuster, at least two-piece rotor and method for manufacturing a rotor for a hydraulic camshaft adjuster
  • Hydraulic camshaft adjuster, at least two-piece rotor and method for manufacturing a rotor for a hydraulic camshaft adjuster
  • Hydraulic camshaft adjuster, at least two-piece rotor and method for manufacturing a rotor for a hydraulic camshaft adjuster

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Embodiment Construction

[0041] Figure 1A A plan view of an embodiment of a hydraulic camshaft adjuster 1 according to the invention with an at least two-part rotor 2 is shown, whereas Figure 1B shows along the Figure 1A A cross-sectional view of the line A-A, the rotor can rotate around the axis A. The rotor 2 is composed of a first rotor element 4 and a second rotor element 6 .

[0042] According to the invention, the first rotor element 4 has four first holes 8 which are aligned with the four second holes 10 of the second rotor 6 . Engageable connecting elements 12 , preferably powder cylinders or sintered cores 12 , are seated here in each of the first holes 8 and the second holes 10 , so that the first rotor element 4 forms a positive fit with the second rotor element 6 . , force-fitting and / or material-fitting connection. It can obviously also be provided that the first rotor element 4 is connected to the second rotor element 6 with more or less than four connecting elements 12 .

[0043] ...

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Abstract

A hydraulic camshaft adjuster, including a two-part rotor connected at least to a camshaft in a rotationally fixed manner. The at least two-part rotor can be rotated about an axis and comprises a first rotor element and a second rotor element. The first rotor element and the second rotor element are axially preloaded against the camshaft in a frictionally locked manner exclusively by means of a threaded connection.

Description

technical field [0001] The invention relates to a hydraulic camshaft adjuster having an at least two-part rotor. The at least two-part rotor is movable in rotation about an axis and is composed of a first rotor element and a second rotor element. [0002] The invention also relates to an at least two-part rotor of a hydraulic camshaft adjuster. [0003] Furthermore, the invention relates to a method for producing a rotor of a hydraulic camshaft adjuster. Background technique [0004] It is generally known that camshaft adjusters enable optimum timing over a wide load and rotational speed range of the engine. Significant reductions in emissions and fuel consumption are thus achieved. Furthermore, driving pleasure is significantly enhanced by optimizing torque and power. In the prior art, a distinction can be made between electronic camshaft adjusters and the hydraulic camshaft adjusters mentioned at the outset. [0005] In the field of hydraulic camshaft adjusters, rotor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/344F01L1/46
CPCF01L1/3442F01L1/46F01L2001/34479F01L2301/00F01L2303/00F01L2303/01B22F3/1017B22F3/16B22F5/00F01L1/047
Inventor 于尔根·韦伯
Owner SCHAEFFLER TECH AG & CO KG
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