Coupling element for a multi-joint crank drive and multi-joint crank drive

US9995335B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Matthias Brendel · Ingolstadt, DE
• Markus Wild · Stammham, DE

Key dates

• Filing date: Dec 19, 2014
• Grant date: Jun 12, 2018
• Expiry date: Dec 19, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B75/32
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A coupling element for a multi-joint crank drive of an internal combustion engine includes a coupling lever having a first eye for a piston connecting rod, and a second eye for an articulation connecting rod. A bearing cover forms with the coupling lever a third eye for a crank pin. The coupling lever and the bearing cover are connected to each other by bolts which defined parallel longitudinal central axes. The coupling lever and the bearing cover abut each other at an outer periphery of the third eye at adjacent contact surfaces on both sides of the third eye to define a separating plane which extends through a center of the third eye at an acute angle with respect to a further plane which passes through the center of the third eye and extends perpendicular to the longitudinal central axes of the bolts.