排ガス浄化システムを備える大型２サイクルディーゼルエンジン - MNA Diesel and Turbo Filial Aff MNA Diesel and Turbo STI Tskrand

Title:

排ガス浄化システムを備える大型２サイクルディーゼルエンジン

Document Type and Number:

Japanese Patent JP5860923

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a large-scale two-cycle turbo supercharging type diesel engine capable of being operated with an SCR reactor in a wide range of engine load conditions.SOLUTION: An exhaust conduit 10 connects an outlet of a selective catalyst reduction reactor 8 to a turbine 12 of a turbo supercharger. A controllable bypass line 26 extending from a scavenging receiver 22 to the exhaust conduit is provided. In a low engine load, a controlled scavenging flow is led from the scavenging receiver to an upstream position of the turbine of the turbo supercharger at the downstream of the selective catalyst reduction reactor in the exhaust conduit. In accordance with the measures, a temperature of the exhaust gas entering the selective catalyst reduction reactor rises. Further, a cooler 18 in the scavenging path is controlled so that partial or full cooling effect is obtained. As an alternative, the cooler may be controlled so as to be a heater, and the heater is provided at the scavenging path.

Inventors:

Pieda schorjeya

Application Number:

JP2014113717A

Publication Date:

February 16, 2016

Filing Date:

June 02, 2014

Export Citation:

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