Title: Variable geometry exhaust manifold turbocharging system for vehicle diesel engine

Authors: Shaoming Wang; Kangyao Deng; Yi Cui

Addresses: Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiaotong University, 800# Dongchuan Road, 200240 Shanghai City, China. ' Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiaotong University, 800# Dongchuan Road, 200240 Shanghai City, China. ' Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiaotong University, 800# Dongchuan Road, 200240 Shanghai City, China

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.

Keywords: diesel engines; variable geometry; exhaust manifold design; charging mode; VGEM turbocharging; vehicle design; brake specific fuel consumption.

DOI: 10.1504/IJVD.2011.043594

International Journal of Vehicle Design, 2011 Vol.57 No.1, pp.37 - 49

Received: 05 Jun 2010
Accepted: 30 Oct 2010

Published online: 15 Apr 2015 *

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