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Cam Shaft

A camshaft and gear technology, applied to engine components, machines/engines, mechanical equipment, etc., can solve problems such as limited space and complexity

Inactive Publication Date: 2014-08-06
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When connecting the camshaft to the cover assembly, a real problem is limited space, so it becomes more complicated to connect several functional elements externally to one plug

Method used

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Embodiment Construction

[0018] Refer to attached Figure 1-3 , the camshaft 1 of the internal combustion engine 2 of the present invention comprises at least two functional devices 3, the functional devices 3 are connected to the camshaft 1 by means of a shaft-hub connection, preferably by pressing two different functional elements 4 on the Together. Each functional element 4 fulfills a different function and is only connected to common functional devices 3 to simplify assembly. At least one functional element 4 is a gear 5 , preferably a coupling gear, a cam, a pump drive, an encoder wheel 6 , a belt pulley, a coupling 7 , preferably an Oldham coupling, or a sprocket 5 ′. figure 1 The functional device 3 shown has three functional elements 4 , namely a coupling 7 , a sprocket 5 ′ or toothed wheel 5 , and an encoder wheel 6 . By combining a plurality of functional elements 4 in one common functional device 3, the production of the cam 1 is considerably simplified, because the plurality of functiona...

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Abstract

The camshaft (1) has a function device (3) which is connected via a shaft-hub connection. The function device includes at least two different function units (4) each operable for different functions. The function device couples to the camshaft via at least one of a thermal joining fit and a longitudinal press fit. An independent claim is included for a function device for the camshaft.

Description

technical field [0001] The invention relates to a camshaft of an internal combustion engine to which at least one functional device is connected by means of a shaft-hub connection as defined in claim 1 . The invention also relates to a functional device for such a camshaft and an internal combustion engine having at least one such camshaft. Background technique [0002] Common camshafts are very familiar, for example by thermally connecting functional elements to such camshafts. However, functional devices such as gears, transmission wheels, cams, pump drives, eg pump cams for high-pressure pumps or rotating Oldhams couplings for vacuum pumps or oil pumps, are connected to the camshaft by pressing or thermally inserting them. For each function to be realized, different functional elements are required, such as gears or cams, which, if required, are still connected in different ways for this purpose. When connecting the camshaft to the cover assembly, a real issue is limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/047
CPCF01L2001/0471F01L2001/0475F01L1/047
Inventor 弗兰克·多泰尔托马斯·弗伦德尔安东尼奥·梅农纳斯特凡·斯泰彻尔
Owner MAHLE INT GMBH