Patent · US Active

Camshaft adjusting system having a hydraulic camshaft adjuster and an electric camshaft adjuster

US10844754B2 · kind B2 · utility

2Cited by

3References

19Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Jurgen Weber · Oberhausen, DE
Jochen Thielen · Nuremberg, DE
Marco Hildebrand · Nuremberg, DE

Key dates

Filing date	Apr 25, 2019
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Apr 25, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2820/032
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

This disclosure relates to a camshaft adjusting system for a motor vehicle, having an inner camshaft, and an outer camshaft, which is arranged coaxially with and radially outside the inner camshaft. The camshaft adjusting system further includes an input wheel, which is designed to introduce torque into the camshafts, a hydraulic camshaft adjuster, which acts on the outer camshaft to adjust the phase angle of the outer camshaft relative to the input wheel, and an electric camshaft adjuster, which acts on the inner camshaft to adjust the phase angle of the inner camshaft relative to the input wheel. The electric camshaft adjuster engages in the hydraulic camshaft adjuster at least partially in an axial direction.

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