Variable geometry exhaust manifold turbocharging system for vehicle diesel engine
by Shaoming Wang; Kangyao Deng; Yi Cui
International Journal of Vehicle Design (IJVD), Vol. 57, No. 1, 2011

Abstract: A Variable Geometry Exhaust Manifold (VGEM) turbocharging system has been designed for a six-cylinder vehicle diesel engine. The VGEM turbocharging system can realise the switch between two charging modes. Experiments have been carried out on the VGEM turbocharging system. The case when the controllable valves are closed is tested by use of an original exhaust manifold. The case when the controllable valves are opened is tested by use of a newly designed exhaust manifold. Experimental results indicate that the Brake Specific Fuel Consumption (BSFC) of the VGEM turbocharging system can be reduced by 4 g/kWh on the rated operation condition.

Online publication date: Wed, 15-Apr-2015

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