Cam phaser with eccentric lantern gear component

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.

1 . A cam phaser for an internal combustion engine with a transmission device adjustable in the angle of rotation with a drive gear and an output gear, where said drive gear and said output gear are arranged coaxial relative to an axis of rotation of said transmission device, and with a transmitter element revolving eccentrically relative to said axis of rotation and an actuating device, where said actuating device comprises an eccentric portion acting upon said transmitter element,
 wherein said transmitter element is formed as a lantern element, where said lantern element comprises a transmitter disk being disposed eccentric relative to said axis of rotation with a plurality of pins protruding concentrically to said transmitter disk relative to a first face side of said transmitter disk, where said lantern element in sections engages with said drive gear and in sections with said output gear, and where said lantern element is by said eccentric portion movable eccentrically about said axis of rotation in order to move said drive gear and said output gear relative to each other, and   wherein said actuating device comprises a power take-off shaft on which said eccentric portion is arranged and which is coupled to an actuating drive, where said drive gear is via a timing assembly coupled in a fixed angle of rotation to the crankshaft and said output gear to a camshaft.   
     
     
         2 . The cam phaser according to  claim 1 , wherein said transmitter disk also on a second face side comprises a plurality of pins protruding concentrically to said transmitter disk relative to said second face side. 
     
     
         3 . The cam phaser according to  claim 2 , wherein said pins protruding concentrically relative to said first face side and said pins protruding concentrically relative to said second face side are arranged on different radii of said transmitter disk. 
     
     
         4 . The cam phaser according to  claim 2 , wherein the number of said pins protruding concentrically relative to said first face side differs from the number of said pins protruding concentrically relative to said second face side. 
     
     
         5 . The cam phaser according to  claim 1 , wherein said drive gear and said output gear each comprise a lantern gear which are in sections engaged with said lantern element. 
     
     
         6 . The cam phaser according to  claim 5 , wherein said drive gear and said output gear comprise externally-toothed lantern gears. 
     
     
         7 . The cam phaser according to  claim 5 , wherein said drive gear and said output gear are formed as hollow gears engaging with an internal toothing with said lantern element. 
     
     
         8 . The cam phaser according to  claim 1 , wherein said transmission device is configured as a two-stage gear, said two-stage gear comprises a first and a second lantern element disposed eccentric relative to said axis of rotation and a transition element which in sections engages with said first lantern element and in sections with said second lantern element, where said drive gear in sections engages with said first lantern element and said output gear in sections engages with said second lantern element. 
     
     
         9 . The cam phaser according to  claim 1 , wherein said actuating drive is an electric motor. 
     
     
         10 . The cam phaser according to  claim 1 , wherein a bearing seat, on which said eccentrically revolving transmitter disk is mounted, is provided on said eccentric portion. 
     
     
         11 . The cam phaser for an internal combustion engine with a transmission device adjustable in the angle of rotation with a drive gear and an output gear, where said drive gear and said output gear are arranged coaxial relative to an axis of rotation of said transmission device, and with a transmitter element revolving eccentrically relative to said axis of rotation and an actuating device, where said actuating device comprises an eccentric portion acting upon said transmitter element,
 wherein said drive gear and said output gear are formed as lantern elements comprising a plurality of pins disposed concentric relative to said axis of rotation, and that said transmitter element is formed as a lantern gear, where said lantern gear comprises a transmitter disk being disposed eccentric relative to said axis of rotation and having a first and a second lantern toothing which are arranged concentric relative to said transmitter disk, where said lantern elements of said drive gear and said output gear each in sections engage with said first and said second lantern toothing of said transmitter disk, and where said transmitter disk is by said the eccentric portion movable eccentrically about said axis of rotation in order move said drive gear and said output gear relative to each other; and   wherein said actuating device comprises a power take-off shaft on which said eccentric portion is arranged and which is coupled to an actuating drive, where said drive gear is via a timing assembly coupled in a fixed angle of rotation to said crankshaft and said output gear to a camshaft.   
     
     
         12 . The cam phaser according to  claim 11 , wherein said actuating drive is an electric motor. 
     
     
         13 . The cam phaser according to  claim 11 , wherein a bearing seat, on which said eccentrically revolving transmitter disk is mounted, is provided on said eccentric portion.