Mixture compressing internal combustion engine with two cylinder rows and exhaust gas treatment

US4000614A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Jorg Abthoff · Plüderhausen, DE
• Dag-Harald Huttebraucker · Waiblingen, DE

Key dates

• Filing date: Jan 23, 1976
• Grant date: Jan 4, 1977
• Expiry date: Jan 23, 1996

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D41/1475
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A mixture-compressing reciprocating-piston internal combustion engine with two separate cylinder rows and a single mixture-producing device, in which one row is supplied with a slightly richer air/fuel mixture from a common mixture-producing device which is then leaned down by the admixture of additional air while the other cylinder row is supplied with an air/fuel mixture which is as accurately as possible stoichiometric; oxygen probes are thereby used upstream of the respective catalysts to control a valve controlling the additional air inlet to the one cylinder row and the fuel supply to the mixture-producing device.