Multi-stage turbocharging system with thermal bypass

Multi-stage turbocharging system with thermal bypass

  • CN 101,925,725 A
  • Filed: 02/24/2009
  • Published: 12/22/2010
  • Est. Priority Date: 02/29/2008
  • Status: Active Grant
First Claim
Patent Images

1. a multi-stage turbocharging system comprises a kind of high pressure (HP) turbo machine (400) and a kind of low pressure (LP) turbo machine (870), and this HP turbo machine has an inlet and an outlet and this LP turbo machine and has an inlet and an outlet,Be adapted for the E-HP exhaust piping that a kind of engine fluid is connected to described HP turbine inlet;

  • Described HP turbo machine outlet fluid is connected to the HP-LP exhaust piping of described LP turbine inlet;

    Described LP turbo machine outlet fluid is connected to LP-A exhaust piping on the after-treatment device (850), andThe bypass piping of branch, the bypass tube cording of this branch has an inlet and first and second branch roads, each branch road has an outlet, wherein this inlet is connected on this E-HP exhaust piping by fluid, this first way outlet is connected to this LP turbine inlet by fluid, this second way outlet is connected on this after-treatment device (850) by fluid, and in described first branch road a kind of R2S valve (420) arranged and a kind of warming-up valve (430) is arranged in described second branch road.

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