A large turbocharged two-stroke diesel engine with exhaust gas purification

• Main Author: KARL JOHAN NOGENMYR
• Format: Patent
• Language: English
• Published: 22.07.2015
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To obtain a uniform mixture by mixing ammonia into exhaust gas and to minimize countermeasure cost for a pressure loss, on the other hand, in a turbo supercharger in which an SCR reactor is installed at a high pressure side of a turbine.SOLUTION: A cross head type large-sized turbo supercharging type two-cycle diesel engine includes: a plurality of cylinders disposed in series; a turbo supercharger; and an SCR reactor at an upstream side of the turbo supercharger and a downstream side of an exhaust gas receiver 3. The exhaust gas receiver 3 is connected to the respective cylinders, introduces exhaust gas in a tangential direction and generates an eddy current in the exhaust gas on the inside of the exhaust gas receiver 3. A reductant is introduced to a flow within a center duct 47. A plurality of vanes are included around the center duct 47, and the vanes cause the exhaust gas to dissipate the eddy current and cause pressure to be acquired. The acquired pressure causes a part of the exhaust gas in an outlet section 49 to reversely flow through the center duct 47 to a mixing section 48.