Mixture-compressing internal-combustion engine with secondary-air injection and with air-mass metering in the suction pipe

US5205120A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Kurt Oblander · Weingarten, DE
• Ludwig Fricker · Stuttgart, DE
• Alexander Anderson · Boulder, US
• Hans-Karl Weining · Eßlingen, DE
• Selcuk Geldec · Lauffen am Neckar, DE
• Ralf Krukenberg · Esslingen am Neckar, DE
• Gerhard Fingerle · Köngen, DE

Key dates

• Filing date: Dec 23, 1991
• Grant date: Apr 27, 1993
• Expiry date: Dec 23, 2011

Classification

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

Abstract

The invention relates to a mixture-compressing internal-combustion engine with secondary-air injection and with air-mass measurement as well as with an injection valve sequential fuel injection and air assistance, the air line provided for air assistance being equipped with a shut-off valve opening in the starting and the warmup phase of the internal-combustion engine.