Patent · US Active

Hydraulic camshaft adjuster, and method for operating the hydraulic camshaft adjuster

US10858968B2 · kind B2 · utility

1Cited by

0References

18Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Gerhard Scheidig · Oberasbach, DE
Jochen Thielen · Nuremberg, DE
Enno Schmitt · Kulmbach, DE

Key dates

Filing date	Jun 18, 2018
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Jun 18, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M9/106
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A hydraulic camshaft adjuster adjusts the control time of gas exchange of an internal combustion engine. A reservoir for storing pressure medium is formed on a cover of the hydraulic camshaft adjuster. An overflow opening of the cover is dimensioned such that a volume of pressure medium remains in the reservoir when the hydraulic camshaft adjuster is stationary. This ensures that pressure medium is supplied to the return valve of a central locking mechanism when the engine is running.

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