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Cam phaser with eccentric lantern gear component

a technology of cam phaser and gear component, which is applied in the direction of machine/engine, valve details, valve arrangement, etc., can solve the problems of weakened tooth base and only relatively small transmission force, and achieve the effect of large reduction ratio and good self-locking

Inactive Publication Date: 2015-03-26
IWIS MOTORSYSTEME GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to improve the problems of transmission devices in prior art by providing a cam phaser transmission device that can be adjusted in angle to improve operational reliability and positioning accuracy with minimal production effort. The solution is to use a lantern element that can be moved relative to the drive gear and output gear to engage with suitable positive-fit elements. This eliminates the need for precision-ground or braced gears, saving cost in the manufacture of power-split gear mechanisms. The lantern element is composed of a disk with regular spacing concentric to its center and a plurality of pins welded or riveted into associated bores on the disk or otherwise attached. The pins are subjected to shear stress, reducing wear of the gear tooth.

Problems solved by technology

In addition to the limitation to relatively only low drive speeds, lantern elements can there also transmit only relatively small forces, as the associated lantern gears are in conventional applications strongly rounded at the base circle and the base of the tooth is thereby weakened.

Method used

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  • Cam phaser with eccentric lantern gear component
  • Cam phaser with eccentric lantern gear component
  • Cam phaser with eccentric lantern gear component

Examples

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Embodiment Construction

[0030]The sectional view in FIG. 1 shows an embodiment of a transmission device 1 adjustable in the angle of rotation according to the invention with an axis of rotation D that can be used as a cam phaser 24 in an internal combustion engine. The transmission device 1 shown in this sectional view comprises a power take-off shaft 2 of a actuating device 6 positioned along the axis of rotation D, and a drive gear 3 and a output gear 4 which are rotatably mounted on the power take-off shaft 2, as well as a transmitter element 5 enabling engagement in sections with the drive gear 3 and the output gear 4. The power take-off shaft 2 comprises a drive bearing seat 7 and an output bearing seat 8 which are each provided with a double ball bearing 9 on which in turn the drive gear 3 and the output gear 4 are positioned coaxial to the axis of rotation D and mounted rotatably relative to the power take-off shaft 2. An eccentric portion 10 is provided on the power take-off shaft 2 between the dri...

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PUM

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Abstract

A cam phaser transmission device is adjustable in rotation angle with a drive gear and output gear arranged coaxial to a rotation axis of the transmission device, having a revolving transmitter element and actuating device. The transmitter element is arranged eccentric relative to the rotation axis and formed as a lantern element. The lantern element comprises a transmitter disk disposed eccentric to the rotation axis and comprising pins protruding concentrically to the transmitter disk relative to the face side of the disk. The lantern element in sections engages with the drive gear and output gear and is by an eccentric portion of the actuating device movable eccentrically to the rotation axis to move the drive gear and output gear relative to each other. In an inverted embodiment, the drive gear and the output gear are formed as lantern elements each engaging with a lantern toothing on the transmitter disk.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to foreign German patent application No. DE 102013015844.3, filed on Sep. 24, 2013, the disclosure of which is incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to a cam phaser transmission device adjustable in the angle of rotation with a drive gear and an output gear, where the drive gear and the output gear are arranged coaxial relative to the axis of rotation of the transmission device, and with a transmitter element revolving eccentrically about the axis of rotation and an actuating device, where the actuating device comprises an eccentric portion acting upon the transmitter element.BACKGROUND[0003]Conventional planetary gear mechanisms are used in the art as single or multi-stage gears for very different applications. In this, the planetary gear mechanisms can be designed as a toothed gear mechanism or a friction gear mechanism and can, in addition to ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01L1/344F01L1/047
CPCF01L1/047F01L1/34403F01L1/352F01L2250/02F01L2820/01
Inventor MULLER, REINHARDFRANK, MICHAELSALZSEILER, ALEXANDERLUNK, CHRISTOPH
Owner IWIS MOTORSYSTEME GMBH & CO KG
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