Shanghai Internal Combustion Engine Research Institute

Shanghai, China

Shanghai Internal Combustion Engine Research Institute

Shanghai, China
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Gu D.-F.,SAIC | Gu D.-F.,Shanghai Internal Combustion Engine Research Institute | Ding H.,FAW Jiefang Automotive Co. | Zhai Y.-H.,FAW Jiefang Automotive Co. | And 6 more authors.
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2013

Structure, performance and reliability based on the original 4DW vehicular powerplant platform were improved to meet the demand of 2~3 t IC engine forklift and even similar general non-road mobile machinery. On the premise of satisfying engine power in hoisting condition and of traction characteristics, larger piston displacement and lower speed were selected to realize engine technical indicators; gear housing and gear train were modified to contain the hydraulic pump; optional oil pump assembly and double-shaft balance system supported by a lower frame were employed, and fuel system, intake system and combustion system were redesigned to adapt technical parameters of new forklift engine. Bench test and whole vehicle test demonstrate the newly developed natural aspirated diesel engine meets the emission standards (China II) GB 20891-2007 Limits and Measurement Methods for Exhaust Pollutants from Diesel Engines of Non-Road Mobile Machinery, weighted specific fuel consumption is only 249.3 g/(kW·h). These newly developed structures improve engine working conditions, also increase reliability and service life. The engine behaves well in 400 h bench endurance test of one engine and 1000 h whole vehicle test of two engines, showing that this development is successful.


Feng L.-M.,Tianjin University | Gao W.-Z.,Tianjin University | He G.-W.,Shanghai Internal Combustion Engine Research Institute
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2011

To study effect of diesel particulate filter (DPF) on engine exhaust noise, a simplified three-dimensional DPF acoustical model was simulated numerically in engine operating conditions using Sysnoise software. By using obtained transfer matrix in DPF, the insertion loss in operating condition was calculated. On the engine test bed established in a half anechoic laboratory the DPF insertion loss was measured in rated and idling conditions. The comparison between experimental and calculated results confirms correctness of the model. Both two show that the DPF has a significant effect on high-frequency exhaust noise attenuation and viscosity plays a very important role in noise attenuation.


Gong J.-K.,Hunan University | Guo H.,Hunan University | Guo H.,Shanghai Internal Combustion Engine Research Institute | Cai H.,Hunan University | Long G.,Hunan University
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2010

Based on the aging mechanism and the detailed reaction mechanism of three-way catalytic converter (TWC), a kinetic model of TWC, including aging process, was established. In combination with CFD software, an aging characteristic model of two-dimension single-channel of TWC was established according to fast aging bench test condition. Based on the model, the performance of TWC was simulated. The characteristic conversion efficiency as a function of aging time as well as light off characteristics & air fuel ratio characteristics before and after aging were obtained. The simulated results were in agreement with the bench test result. This simulation can provide an effective theory method for analyzing the performance of TWC aging process.


Lin K.,Shanghai Internal Combustion Engine Research Institute | Yuan W.-P.,Shanghai Internal Combustion Engine Research Institute | Yuan W.-P.,SAIC | Hu A.-H.,SAIC | And 2 more authors.
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2013

Mathematic method was used to study the relationship between energy average sound pressure level (EASPL) and arithmetical average sound pressure level (AASPL). Based on the samples obtained from 435 time measurements at 9 points for variable objectives the changing curve of difference between EASPL and AASPL with SPL's range was achieved. The uncertainty study using statistical method reveals that EASPL uncertainty and AASPL uncertainty are equal at 100% confidence level for 96.8% samples.


Qiao L.-L.,SAIC | Qiao L.-L.,Shanghai Internal Combustion Engine Research Institute | Ji W.-B.,SAIC | Ji W.-B.,Shanghai Internal Combustion Engine Research Institute | And 2 more authors.
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2013

Examined actual poly V-belt fatigue damage examples in use and impact of environment temperature, pulley diameter and installation tension on its life, on the basis of special scheme verification and statistic treatment of test data, a standard of poly V-belt fatigue life index was proposed. For mechanical automatic tensioner, its static and dynamic torque characteristics were analyzed, and the average damping rate, a index assessing its dynamic torque characteristics, was introduced and specified its proper limits of 20%~60%. A set of high-temperature contamination-tolerance test specifications was independently developed to evaluate the tentioner durability and work out its durability index standard. At last, A Set of Technical Requirements and Acceeptance Standards of the V-Belt and the Automatic Tensioner are completed and proved to be feasible in actual use.


Feng Q.,Tongji University | Lou D.-M.,Tongji University | Ji W.-B.,SAIC | Ji W.-B.,Shanghai Internal Combustion Engine Research Institute | And 2 more authors.
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2014

Effects of DOC and DOC+CDPF on gaseous emissions, such as CO, THC, NO, NO2, and SO2 from a heavy-duty diesel engine were studied based on AVL-PEUS FTIR equipment. Results show that: compared with DOC, DOC+CDPF can decrease light-off temperature of CO. On the active sites, hydrocarbons show stronger adsorption and competition ability for active sites than CO, therefore, hydrocarbons oxidation can reach much lower light-off temperature. DOC and DOC+CDPF can reduce NO and NOx, but increase NO2 through oxidation mechanism. Catalyst added with CeO2 can restore sulfide at lean-burn and release it at rich-burn conditions, which could enhance resistance of sulfur poisoning.


Ji W.-B.,SAIC | Ji W.-B.,Shanghai Internal Combustion Engine Research Institute | Lou D.-M.,Tongji University
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2014

In an EFI gasoline engine without any modification, ultrafine particles emissions characteristics when fueled with conventional gasoline, pure butanol, butanol-gasoline blends with butanol contents (in volume) of 10%, 15%, 20%, 50%, and 85% were measured respectively. Results show that compared with gasoline, the total ultrafine particla emission number concentration and mass concentration of butanol-gasoline blends increase with butanol content increasing, most obvious in speeds near the maximum torque point and the high load points. It is concluded that the total ultrafine particle emissions number increment is mainly resulted from nuleation mode particla emission number increase.


Zhang Y.-L.,Shanghai Internal Combustion Engine Research Institute | Wu X.-L.,Shanghai Internal Combustion Engine Research Institute | Wu X.-L.,SAIC | Yao J.-M.,Shanghai Internal Combustion Engine Research Institute | Yao J.-M.,SAIC
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2013

Using numerical calculation analysis method, an investigation of influence of two kinds of spray targeting schedules on in-cylinder wall wetting was conducted for a side-mounted injector GDI engine. The contribution of every hole of the first schedule was also calculated. Results show that in-cylinder wall wetting of the second schedule is reduced greatly. The wall wetting is sensitive to the spray targeting, especially some particular sprays. The in-cylinder wall wetting can be reduced by optimizing the spray targeting to a certain degree.


Luan Y.-L.,Tongji University | Li L.-G.,Tongji University | Wang Z.,Tongji University | Deng J.,Tongji University | And 2 more authors.
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2010

To develop a free-piston engine-alternator power system for hybrid electric vehicles, key design parameters, such as reciprocating mass of the piston assembly, compression ratio, ignition timing, engine specific fuel consumption (SFC) and power output, were optimized based on simulation. The results confirm that rated power of the free-piston engine reaches 7.42kW and its min. SFC decreases to 313.4g/(kW·h), improved by 1.17kW and 34% respectively than the original.


Han G.-H.,Tongji University | Jin X.-X.,Tongji University | Hou Y.-F.,Tongji University | Yuan W.-P.,Shanghai Internal Combustion Engine Research Institute
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | Year: 2012

Taking piezoelectric ceramic as executive component, an active-control approach i.e. directly controlling the plate vibration for control of the cavity noise was adopted, and applied neural net control technology, combined with adaptive technology, into the active noise control system of rectangular cavity. The collocated arrangement of sensors and actuators was adopted. Experiments demonstrate that this design has good noise-reduction effect. These fruits are useful for application of the multichannel active noise control theory in rectangular cavity, such as vehicle.

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