Mechanically controllable valve train assembly, internal combustion engine and method for operating an internal combustion engine

US9157381B2 · kind B2 · utility

Assignee

• KOLBENSCHMIDT PIERBURG INNOVATIONS GMBH · DE

Inventors

• Martin Nowak · Leverkusen, DE
• Karsten Grimm · Aachen, DE
• Michael Breuer · Rottenburg am Neckar, DE
• Stefan Moormann · Kaarst, DE
• STEFAN ROTHGANG · Rheinberg, DE

Key dates

• Filing date: Jan 17, 2013
• Grant date: Oct 13, 2015
• Expiry date: Jan 17, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A valve train assembly for an engine comprising cylinders, each comprising a gas inlet and a gas outlet valve. A camshaft comprises a peripheral contour. A valve stroke adjusting device comprises a control shaft comprising control contours. An intermediate lever arrangement comprises an intermediate lever comprising a working curve which cooperates with a swivel lever, and an engagement element connected to a control contour. Each intermediate lever is connected to the peripheral contour. A transmission arrangement provides that an intermediate lever arrangement and a swivel lever arrangement is associated with each gas inlet valve. A control contour for an idle range is similar to a control contour for a full-load range. A control contour for a part-load range of a gas inlet valve of a shut-off cylinder comprises a section different to a control contour for a part-load range of the gas inlet valve of a remaining cylinder.