Joachim Böhme

The new 1.8 l four cylinder T-FSI engine by Audi

When the 2.0 l T-FSI engine appeared on the market in 2004, Audi, for the first time, combined a direct injection system with turbocharging on a petrol engine. The new 1.8 l T-FSI engine now combines a completely new basic engine with an evolutionary version of the T-FSI combustion process. This systematic refinement of the T-FSI concept brings benefits like increased torque at low engine speeds and low fuel consumption. The present part 1 of this article describes construction and mechanics of the engine, part 2 in the November issue will cover thermodynamics and application.

Der neue 1,8-l-Vierzylinder-T-FSI-Motor von Audi

Mit der Markteinfuhrung des 2,0-l-T-FSI-Motors im Jahre 2004 kombinierte Audi erstmalig bei Ottomotoren Direkteinspritzung mit Turboaufladung. Der neue 1,8-l-T-FSI-Motor vereint nun einen vollstandig neuen Grundmotor mit der aktuellen Evolutionsstufe des T-FSI-Brennverfahrens. Die konsequente Weiterentwicklung des T-FSI-Konzepts bietet unter anderem eine Steigerung des Drehmoments bei niedrigen Drehzahlen und einen geringeren Verbrauch. Der vorliegende Teil 1 beschreibt Konstruktion und Mechanik des Motors, Teil 2 in der Novemberausgabe der MTZ befasst sich mit Thermodynamik und Applikation.

Magnesium-Hybrid-Turbomotor von Audi

Mit diesem Beitrag zeigt Audi einen Weg, wie der Leichtbauwerkstoff Magnesium durch spezielle konstruktive Detaillosungen und den Einsatz neuer warmfester Legierungen zukunftig auch in hochbelasteten Motoren eingesetzt werden kann. Durch gezieltes lokales Werkstoff-Engineering gelang es erstmals, einen Otto-Turbomotor mit einer spezifischen Leistung von 67 kW/l in Magnesium-Hybrid-Leichtbauweise darzustellen. Eine Besonderheit des im Druckgussverfahren hergestellten Kurbelgehauses stellt die Closed-deck-Bauweise dar, fur die ein grosserientaugliches Herstellungskonzept entwickelt wurde.

Magnesium-hybrid-turbo engine from Audi

In this paper, Audi demonstrates a way in which the lightweight material magnesium can, by means of special design details and the use of new alloys with improved strength at elevated temperatures, in future be employed in engines subject to high loads. By using carefully targeted localised materials engineering, it has proved possible for the first time to develop a four-stroke turbo engine with a specific power output of 67 kW/l with a magnesium hybrid lightweight structure. A special feature of the closed-deck, die-cast crankcase is that the manufacturing concept for it has been developed to be suitable for series production.

The new five-cylinder 2.5 L TFSI engine for the Audi TT RS

Audi has a long tradition of five-cylinder turbocharged engines. The combination of direct fuel injection with turbocharging is a logical advance. A 2.5-litre engine capacity delivers a power output of 250 kW at between 5400 and 6500 rpm and 450 Nm of torque at just 1600 rpm. This engine specification in the Audi TT RS, in conjunction with an optimally adapted six-speed manual gearbox, provides outstanding acceleration and elasticity of sports car proportions allied with reasonable fuel economy.

Der Neue 2,5-l-TFSI-Fünfzylindermotor für den Audi TT RS

Funfzylindermotoren mit Turboaufladung haben bei Audi eine lange Tradition. Die Kombination der Direkteinspritzung mit der Turboaufladung ist die konsequente Weiterentwicklung. Aus 2,5 l Hubraum werden 250 kW bei 5400 bis 6500/min und 450 Nm schon bei 1600/min erreicht. Diese motorischen Werte ermoglichen in einem Audi TT RS in Verbindung mit einem optimal angepassten Sechsgang-Handschaltgetriebe hervorragende Beschleunigungs- und Elastizitatswerte auf Sportwagenniveau bei angemessenen Verbrauchswerten.

The crankcase of the new R4-TFSI engine generation from Audi

The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.

The crankcase of the new R4-TFSI engine generation from Audi@@@Das Zylinderkurbelgehäuse der neuen R4-TFSI-Motorengeneration von Audi

The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.

Das Zylinderkurbelgehäuse der neuen R4-TFSI-Motorengeneration von Audi

The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.The market launch of Audi’s new 1.8-l-4V-TFSI engine from its EA888 engine series in early 2007 marked the start of a comprehensive renewal of its R4 petrol engines over the 1.8 l to 2.0 l capacity range. Over the coming years, the new EA888 engine series will gradually replace the highly successful EA113 series throughout the whole of the VW Group. In June 2007 a new 2.0-l-4V-TFSI engine will be added to the EA888 series. This paper deals with the development of the completely new crankcase for the EA888 engines, which was the result of an intensive collaboration with Eisenwerk Bruhl.