The TSI with 88 kW - the expansion of the Volkswagen family of fuelefficient gasoline engines

摘要

With the 1.4 litre 125 kW TSI engine with direct injection and dual charging, Volkswagen was the first volume manufacturer to introduce with great success a downsizing strategy which reduces CO_2 emissions while also increasing driving fun. The new 1.4 l TSI with 88 kW and a single-stage turbocharger starts off the next step in the implementation in the field of cost-effective volume engines. The special technical features of the engine include the further development of the combustion process, simplification of the injector engineering, meticulously optimised turbocharger in conjunction with optimised charge exchange and a newly developed design for water-cooling charge air. Due to the moderate downsizing of the new 1.4 l 88 kW engine - about a 30% reduction in displacement compared to the 4V naturally aspirated engine with the same torque - the new engine can be configured with an economical, one-stage turbocharger, fulfilling all the requirements for the introduction of TSI technology in Volkswagen's volume segment. The combination of the new TSI technology with the new Volkswagen 7-speed dual clutch gearbox with dry clutches makes possible an improvement of 22% in fuel consumption compared to the predecessor Golf, completely attaining the target of 139 g CO_2/km in the European driving cycle.