Camshaft incorporating variable camshaft timing phaser rotor

Abstract

In a VCT system, the rotor of a phaser is integral to a shaft such as a camshaft. The lobes on the camshaft are also integral to the camshaft. The axial dimension and the radial dimension of the resultant rotor-cam shaft-cam lobes combination is reduced.

1 . A device, comprising: 
 a first end having a rotor with a hollow space positioned at the center disposed to rotate relative to a housing; and    a rotating shaft, integral to the rotor, having a plurality of lobes thereon terminating to a second end, the rotating shaft being made of the same material as the rotor.    
   
   
       2 . The device of  claim 1  further comprising at least one separated vane for rigidly affixing onto a notch on the outer circumference of the rotor.  
   
   
       3 . The device of  claim 1  further comprising a back plate disposed to be attached to the backside of the rotor having a lobe shaped opening for facilitating the plate to traverse through the plurality of lobes.  
   
   
       4 . The device of  claim 1 , wherein the device is machined out of a single piece member resulting in having the rotor, the shaft, and the plurality of lobes thereon.  
   
   
       5 . The device of  claim 1 , wherein the device is a phaser.  
   
   
       6 . The device of  claim 1 , wherein the rotating shaft is a camshaft.  
   
   
       7 . The device of  claim 1 , wherein the rotor, and the shaft are machined out of a single piece member.  
   
   
       8 . The device of  claim 1  wherein the hollow space is disposed to have a control valve for controlling the flow of a controlling liquid.  
   
   
       9 . The device of  claim 1 , wherein an actuator is disposed to engage a control valve in the hollow space of the rotor at the second end via an opening thereon via a hollow space within the rotating shaft.  
   
   
       10 . The device of  claim 1 , wherein an actuator is disposed to engage a control valve in the hollow space of the rotor at the first end.  
   
   
       11 . The device of  claim 1 , wherein the plurality of lobes are made of the same material as the shaft.  
   
   
       12 . A VCT system comprising: 
 a phaser, having a housing and a rotor; and    a device, comprising: 
 a first end having the rotor with a hollow space positioned at the center disposed to rotate relative to the housing; and  
 a rotating shaft, integral to the rotor, having a plurality of lobes thereon terminating to a second end, the rotating shaft being made of the same material as the rotor.  
   
   
   
       13 . The VCT system of  claim 12  further comprising at least one separated vane for rigidly affixing onto a notch on the outer circumference of the rotor.  
   
   
       14 . The VCT system of  claim 12  further comprising a back plate disposed to be attached to the backside of the rotor having a lobe shaped opening for facilitating the plate to traverse through the plurality of lobes.  
   
   
       15 . The VCT system of  claim 12 , wherein the rotor, shaft, and the plurality of lobes are machined out of a single piece member resulting in having the rotor, the shaft, and the plurality of lobes thereon.  
   
   
       16 . The VCT system of  claim 12 , wherein the rotor, and the shaft are machined out of a single piece member.  
   
   
       17 . The VCT system of  claim 12 , wherein the hollow space is disposed to have a control valve for controlling the flow of a controlling liquid.  
   
   
       18 . The VCT system of  claim 12 , wherein an actuator is disposed to engage a control valve in the hollow space of the rotor at the second end via an opening thereon via a hollowed space within the rotating shaft.  
   
   
       19 . The VCT system of  claim 12 , wherein an actuator is disposed to engage a control valve in the hollow space of the rotor at the first end.  
   
   
       20 . The device of  claim 12 , wherein the plurality of lobes are made of the same material as the shaft.