Camshaft adjuster
View Patent ↗A camshaft adjuster ( 1 ) that has a spring ( 4 ) covered at least partially by a spring cover ( 5 ) is provided, with the spring cover ( 5 ) having spacer elements ( 6 ) that fix the spring ends ( 7 ) in the axial direction such that the spring windings of the spring ( 4 ) have, as much as possible, no axial contact with the peripheral components.
1. A camshaft adjuster comprising:
a drive element, a driven element, a spring, and a spring cover,
the drive element and the driven element are arranged so that they can rotate relative to each other,
the spring tensions the drive element and the driven element in a peripheral direction,
the spring cover is connected to the drive element or the driven element, and
the spring cover covers the spring in an axial direction,
the spring cover has an inner surface, a spacer element comprises at least one projection extending axially from the inner surface and defines at least partially an outer periphery of a recess on the inner surface in a region of an end of a threaded fastener, the threaded fastener forming a radial contact surface of the spring, and the spacer element limits a degree of freedom of the spring in the axial direction in which the spacer element can be brought into contact with a spring end of the spring.
2. The camshaft adjuster according to claim 1 , wherein the spacer element is constructed as a local raised section in one piece with the spring cover.
3. The camshaft adjuster according to claim 1 , wherein the spring cover is connected to the spacer element with at least one of a material-fit, positive-fit, or non-positive-fit connection.
4. The camshaft adjuster according to claim 1 , wherein the spring cover is constructed from sheet metal or from plastic.
5. The camshaft adjuster according to claim 1 , wherein the spacer element has a coating.
6. The camshaft adjuster according to claim 1 , wherein several spacer elements are provided that are distributed in a peripheral direction of the spring cover.
7. The camshaft adjuster according to claim 1 , wherein the spacer element is arranged in an area of a support of the spring end.