New Audi 1.8 TFSI

In addition to many other new features, the monoscroll turbo features electric wastegate actuation for quicker response and better gas sealing. Active control means that it can be opened at part-load, reducing backpressure and catalyst light-off time… The cast turbine wheel is now Inconel rather than MAR steel, and the compressor wheel is milled from solid.

In addition to many other new features, the monoscroll turbo features electric wastegate actuation for quicker response and better gas sealing. Active control means that it can be opened at part-load, reducing backpressure and catalyst light-off time… The cast turbine wheel is now Inconel rather than MAR steel, and the compressor wheel is milled from solid.

 

[Source: Automotive Engineering, April 2012]

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BMW Triple – Turbo Diesel

When two turbos were no longer enough, BMW applied three. The outcome – a 2,993cc straight-six diesel with three turbochargers supplying 4bar of boost. The engine generates 740Nm from 2,000rpm, revs to 5,400rpm and, in the M550d, emits only 165g/km of carbon dioxide. The system comprises two small variable geometry (VGT) turbos and a large fixed geometry turbo.

[Source: Automotive Engineering, June 2012]

When two turbos were no longer enough, BMW applied three. The outcome – a 2,993cc straight-six diesel with three turbochargers supplying 4bar of boost. The engine generates 740Nm from 2,000rpm, revs to  5,400rpm and, in the M550d, emits only  165g/km of carbon dioxide. The system  comprises two small variable geometry (VGT) turbos and a large fixed geometry turbo.

 

[Source: Automotive Engineering, June 2012]

Continuar a ler “BMW Triple – Turbo Diesel”