Patent ID: 9074521
Filing Date: 2015-07-07
Classification: F02B,Y02T

Abstract:
1. A turbocharger system, comprising: a first turbocharger including a first turbine in fluidic communication with a first cylinder; a second turbocharger including a second turbine in fluidic communication with a second cylinder; a shared bypass conduit having a sole wastegate coupled thereto, the shared bypass conduit in fluidic communication with a first turbine inlet and a second turbine inlet, the sole wastegate including a first flow adjustment mechanism adjusting a flowrate of exhaust gas from a first wastegate inlet and a second flow adjustment mechanism adjusting a flowrate of exhaust gas from a second wastegate inlet; and a controller including executable instructions stored in non-transitory memory to, during a first operating condition, flow exhaust through the shared bypass conduit in fluidic communication with the first turbine inlet, the second turbine inlet, a first turbine outlet, and a second turbine outlet via operation of a sole actuator, where the sole actuator is a wastegate, and where the wastegate is coupled to the shared bypass conduit and during a second operating condition, inhibiting exhaust flow through the shared bypass conduit via operation of the wastegate, where the first operating condition is when one of the first and second turbines has exceeded a predetermined threshold speed and the second operating condition is when both the first and the second turbines are below the predetermined threshold speed.