Patent · US Active

Hydraulic camshaft adjuster

US11105229B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Juergen Weber · Erlangen, DE
Jochen Thielen · Nuremberg, DE

Key dates

Filing date	Feb 8, 2018
Grant date	Aug 31, 2021
Priority date	—
Expiry date	Feb 8, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2001/34479
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A hydraulic camshaft adjuster has a stator, a rotor arranged movably with respect to the stator, and a central valve via which oil supply of working chambers of the hydraulic camshaft adjuster is controlled. A deformable sealing sleeve is arranged between the central valve and the rotor. The sealing sleeve has an initial length in an axial direction, and after assembly, has a deformation such that the length of the sealing sleeve changes from the initial length to an assembled length. The sealing sleeve bears at least partially in the radial direction against the central valve and against the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.