Piston-cylinder combination for a combustion engine

US7055491B2 · kind B2 · utility

Assignee

• Scania CV AB (Publ) · SE

Inventors

• Johan Linderyd · Sundbyberg, SE
• Anders Larsson · Lotorp, SE
• Christer Mattsson · Hörby, SE

Key dates

• Filing date: Jan 29, 2003
• Grant date: Jun 6, 2006
• Expiry date: Jan 29, 2023

Classification

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

Abstract

A combustion engine with compression-initiated combustion comprises at least one cylinder in which a piston is movable axially between a lower dead center point and an upper dead center point, with a dead volume between the cylinder and the piston at the upper dead center point. The dead volume comprises at least two substantially separate spaces in the piston and/or the cylinder at the upper dead center point which are designed to ensure that combustion is initiated at different times.