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

US11193396B2 · 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 28, 2019
• Grant date: Dec 7, 2021
• Expiry date: Jun 28, 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 pre-assembled module for a variable-stroke valve drive of an internal combustion engine is provided. The module includes a base plate having at least one projecting guide plate, an e-linear actuator positioned on the projecting guide plate, and a longitudinally guided push rod with two adjusting fingers extending along a wall of the guide plate. Each respective adjusting finger has a contact surface for displacement of a transverse coupling slide of a switchable cam follower. A rocker arm, having first and second arms, is suspended on an underside of the base plate; the first arm in contact with an adjusting pin of the linear actuator; and, the second arm in contact with the push rod for displacement thereof in a first direction. A spring means for displacement of the push rod in a second direction is arranged between the push rod and the guide plate.