Module for a variable-lift valve drive of an internal combustion engine

US11215088B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Andreas Biermann · Fürth, DE
• Benedikt Noe · Nuremberg, DE
• Martin Steigerwald · Herzogenaurach, DE
• Michael Pribek · Uehlfeld, DE
• Frank Himsel · Herzogenaurach, DE

Key dates

• Filing date: Jun 11, 2019
• Grant date: Jan 4, 2022
• Expiry date: Jun 11, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2303/00
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A preassembled module for a variable-lift valve drive of an internal combustion engine is provided for installation into a cylinder head. The module has a base plate with an electric linear actuator which lies on an upper side of the base plate. A guide plate, which lies on the upper side, has an outer side wall arranged to guide a slide piece. The guide piece extends below the base plate two downwardly pointing actuating fingers. Each respective actuating finger has a contact surface for moving a transverse coupling slide of a switchable rocker arm. The slide piece has a bracket which protrudes over the guide plate with a contact landing arm which runs transversely relative to the electric linear actuator. An actuator-side end of the contact landing arm is in contact with an actuating pin of the electric linear actuator to move the slide piece.