Cam phase adjuster with a plurality of springs

Abstract

The camshaft adjuster is a plurality of return springs which are in parallel to one another in a spring.

1 . A camshaft phase adjuster comprising:
 a stator and a rotor adjustable to the stator in a circumferential direction by a pressure medium;   at least one spring chamber proximately located adjacent to the stator and the rotor; and   a plurality of return springs proximately arranged in the spring chamber, each of the springs having a rotor connecting end for connecting to the rotor and a stator connecting end for connecting to the stator, the return springs configured to rotate the rotor relative to the stator into an initial position absent pressure from the pressure medium.   
   
   
       2 . The adjuster of  claim 1 , wherein
 the spring chamber is axially adjacent to the stator and the rotor.   
   
   
       3 . The adjuster of  claim 1 , wherein
 the plurality of return springs are arranged axially adjacent to one another in the spring chamber.   
   
   
       4 . The adjuster of  claim 1 , wherein
 the plurality of return springs is 2 or more.   
   
   
       5 . The adjuster of  claim 1 , wherein
 the return springs are flat, spiral springs.   
   
   
       6 . The adjuster of  claim 1 , wherein
 each of the return springs has an equal strength.   
   
   
       7 . The adjuster of  claim 2 , wherein
 the plurality of return springs is 2 to 4.   
   
   
       8 . The adjuster of  claim 1 , wherein the return springs are not of equal strength.