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STRATEGY FOR DIESEL ROTARY ENGINE WITH COMMON RAIL INJECTION SYSTEM 被引量:2
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作者 WU Jinjun HAI Jingtao +3 位作者 SHI Jianzhong LI Xuesong YANG Qing WANG Shangyong 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2006年第3期412-416,共5页
A direct injection low compression ratios diesel rotary engine is designed and studied to find the appropriate application of the electronic controlled high pressure common rail injection system. Current development f... A direct injection low compression ratios diesel rotary engine is designed and studied to find the appropriate application of the electronic controlled high pressure common rail injection system. Current development focuses on the applied fuel injection and ignition strategies, especially concerning the combustion configurations of injectors, ignition source, and combustion chamber. The prototype engine, equipped with Bosch common rail system and high performance electronic control unit (ECU), is designed correspondingly. Studies show that the integration of a common rail injection system and the main and pilot duel injectors configurations, assisted with glow plug ignition device and flexible ECU, represents a promising approach to improve the potential of the low compression ratios diesel rotary engine. Currently the engine can run at 6 kr · min^-1 steadily and the power is about 68 kW/(4 kr ·min^- 1). 展开更多
关键词 diesel rotary engine Common rail injection system Electronic control unit(ECU)
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Application of Waste Biomass Pyrolysis Oil in a Direct Injection Diesel Engine: For a Small Scale Non-Grid Electrification
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作者 Sunbong Lee Lihao Chen +1 位作者 Koji Yoshida Kunio Yoshikawa 《Journal of Energy and Power Engineering》 2015年第11期929-943,共15页
The population which could not access to electricity was around 1.2 billion in 2010 and is distributed in many low developing countries. With the increase in the population and the economic growth in those countries, ... The population which could not access to electricity was around 1.2 billion in 2010 and is distributed in many low developing countries. With the increase in the population and the economic growth in those countries, waste generation is growing rapid especially for the organic and the plastic, and the uncontrolled waste disposal is becoming more serious issues to manage it. The interest on waste to energy is growing by the above drivers. This research was carried out for aiming to the real world adaption at the minimum cost of the pyrolysis oil from waste biomass in a diesel engine, mainly for electricity generation. The proposal of the appropriate adaptable blend ratio was the major scope rather than the optimization of the engine parameters. For the sake of it, the pyrolysis oil of the waste biomass was produced from a gasification pilot plant in Japan and blended with biodiesel at minimum effort. A small single cylinder diesel engine (direct injection) was used for the experiment with regard to full load power-output, exhaust emissions and fuel consumption. 展开更多
关键词 Waste biomass PYROLYSIS BLEND direct injection diesel engine exhaust emissions.
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Influence of Diesel Nozzle Geometry on Cavitation Using Eulerian Multi-Fluid Method 被引量:3
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作者 张军 杜青 杨延相 《Transactions of Tianjin University》 EI CAS 2010年第1期33-39,共7页
Dependent on automatically generated unstructured grids, a comprehensive computational fluid dynamics(CFD)numerical simulation is performed to analyze the influence of nozzle geometry on the internal flow characterist... Dependent on automatically generated unstructured grids, a comprehensive computational fluid dynamics(CFD)numerical simulation is performed to analyze the influence of nozzle geometry on the internal flow characteristics of a multi-hole diesel injector with the multi-phase flow model based on Eulerian multi-fluid method.The diesel components in nozzle are considered as two continuous phases, diesel liquid and diesel vapor respectively.Considering that both of them are fully coupled and interpenetrated, sepa... 展开更多
关键词 diesel injection CAVITATION nozzle geometry multi-phase flow numerical simulation
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Effects of Ambient Conditions and Nozzle Design on the Velocity of Clustered Diesel Jets
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作者 Thorsten Brands Peter Hottenbach +3 位作者 Hans-Jargen Ko Gerd Griinefeld Stefan Pischinger Philipp Adomeit 《Journal of Physical Science and Application》 2013年第5期279-286,共8页
The measurement of droplet velocities in Diesel sprays close to the nozzle is important because of the complexity of in-nozzle flow, spray break-up and evaporation. However, the measurement of droplet velocities in th... The measurement of droplet velocities in Diesel sprays close to the nozzle is important because of the complexity of in-nozzle flow, spray break-up and evaporation. However, the measurement of droplet velocities in the dense region of Diesel sprays is very difficult or impossible by means of widely used laser diagnostic techniques, in particular under engine-like high-pressure and high-temperature conditions. The limitations of phase Doppler anemometry (PDA) and particle image velocimetry (PIV) prevent the application to the ultra-dense region of the spray. It was demonstrated that these problems can be greatly reduced by the laser flow tagging (LFT) technique. It was also demonstrated recently that LFT measurements can be conducted in clustered Diesel jets with improved spatial resolution and increased number of simultaneous measurements in the near-nozzle region. In the present work, the nozzle design, the temperature and pressure of the ambient air, and the fuel rail pressure are varied, in order to investigate the influence on the near-nozzle jet velocity and the underlying physical mechanisms. 展开更多
关键词 Laser flow tagging VELOCIMETRY diesel fuel injection cluster nozzles engine-like conditions
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