Volkswagen 1.5 TSI
Poslato: 28 Apr 2016, 20:03
VW details 1.5-liter TSI 'Evo' engine with variable turbine geometry
http://www.leftlanenews.com/vw-details- ... 91629.html
Volkswagen has detailed a new 1.5-liter TSI 'Evo' engine, claimed to be the first volume-production gasoline mill to integrate a variable turbine geometry (VTG) turbocharger.
Borrowing technology already available in more expensive Porsche models, the mainstream EA211 engine boasts an improved torque curve and reduced fuel consumption.
The VGT system allows the engine to produce its maximum torque of 148 lb-ft at 1,300 rpm, maintained through 4,500 rpm. Two variants will initially be available, one producing 129 horsepower and another with 148 ponies.
Both utilize the more efficient Miller combustion cycle with a 12.5:1 compression ratio, along with low-friction atmospheric plasma spray (APS) cylinder wall coatings, cylinder deactivation, improved charge-air cooling and other efficiency-focused features.
"An important aspect here is that the improvements in fuel economy take effect across a wide range of the engine map," the company said in a statement. "Consequently, they do not merely apply under test bench conditions but also have a distinct impact on the customer's everyday driving."
Specific mpg figures remain unclear, though the EA211 TSI Evo is expected to bring a 10-percent improved compared to the previous 123-horsepower 1.4-liter TSI engine.
The new engine will launch later this year, presumably starting with Euro-spec models.
http://www.leftlanenews.com/vw-details- ... 91629.html
Volkswagen has detailed a new 1.5-liter TSI 'Evo' engine, claimed to be the first volume-production gasoline mill to integrate a variable turbine geometry (VTG) turbocharger.
Borrowing technology already available in more expensive Porsche models, the mainstream EA211 engine boasts an improved torque curve and reduced fuel consumption.
The VGT system allows the engine to produce its maximum torque of 148 lb-ft at 1,300 rpm, maintained through 4,500 rpm. Two variants will initially be available, one producing 129 horsepower and another with 148 ponies.
Both utilize the more efficient Miller combustion cycle with a 12.5:1 compression ratio, along with low-friction atmospheric plasma spray (APS) cylinder wall coatings, cylinder deactivation, improved charge-air cooling and other efficiency-focused features.
"An important aspect here is that the improvements in fuel economy take effect across a wide range of the engine map," the company said in a statement. "Consequently, they do not merely apply under test bench conditions but also have a distinct impact on the customer's everyday driving."
Specific mpg figures remain unclear, though the EA211 TSI Evo is expected to bring a 10-percent improved compared to the previous 123-horsepower 1.4-liter TSI engine.
The new engine will launch later this year, presumably starting with Euro-spec models.