Combustion Control Method of Homogeneous Charge Diesel Engines

Suzuki, Hisakazu; Koike, Noriyuki; Odaka, Matsuo

doi:10.4271/980509

Cited by 89 publications

(36 citation statements)

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“…The CAI combustion process involves the autoignition and subsequent simultaneous combustion of a premixed combustible charge. Although the CAI/HCCI combustion technology can be applied to diesel engines as well as gasoline engines, as demonstrated by a number of researchers [1][2][3][4]. In this paper, we shall concentrate on the application of CAI combustion to gasoline engines.…”

Section: Introductionmentioning

confidence: 99%

Performance and Analysis of a 4-Stroke Multi-Cylinder Gasoline Engine with CAI Combustion

Zhao

Jian

et al. 2002

SAE Technical Paper Series

171

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Controlled Auto-Ignition (CAI) combustion was realised in a production type 4-stroke 4-cylinder gasoline engine without intake charge heating or increasing compression ratio. The CAI engine operation was achieved using substantially standard components modified only in camshafts to restrict the gas exchange processThe engine could be operated with CAI combustion within a range of load (0.5 to 4 bar BMEP) and speed (1000 to 3500 rpm). Significant reductions in both specific fuel consumption and CO emissions were found. The reduction in NOx emission was more than 93% across the whole CAI range. Though unburned hydrocarbons were higher under the CAI engine operation.In order to evaluate the potential of the CAI combustion technology, the European NEDC driving cycle vehicle simulation was carried out for two identical vehicles powered by a SI engine and a CAI/SI hybrid engine, respectively. The simulation results showed only moderate improvement in fuel economy and exhaust emissions because of low utilisation of CAI during the drive cycle.In order to take full advantage of the CAI combustion technology, detailed analyses were carried out on the engine's performance, heat release and combustion characteristics, emissions and the effect of gas exchange processes. These analyses showed that the engine's performance and emissions were mainly affected by the trapped residual fractions and residual temperature. In addition, the backflow was found to affect the combustion and emission as well.

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Section: Introductionmentioning

confidence: 99%

Performance and Analysis of a 4-Stroke Multi-Cylinder Gasoline Engine with CAI Combustion

Zhao

Jian

et al. 2002

SAE Technical Paper Series

171

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“…The main hurdles are combustion timing control, low specific power output, high emissions of hydrocarbon (HC) and carbon monoxide (CO), and difficulty to start when cold (Suzuki et al 1998). These are formidable technical challenges for transportation applications, due to the fast transients required to meet the road load and due to the size restrictions inside a vehicle.…”

Section: Project Rationalementioning

confidence: 99%

“…Homogeneous Charge Compression Ignition (HCCI) is an alternative engine technology under consideration due to its potential to lower emissions of NOx while maintaining the high level of efficiency typical of modern direct injection (DI) Diesel engines (Suzuki et al 1998). HCCI combustion has studied over since the late 1970's and given many names including Active Thermo Atmosphere Combustion (ATAC, Onishi et al 1979 Miyamoto et al 1999).…”

Section: Project Approachmentioning

confidence: 99%

“…HCCI combustion is fundamentally different than combustion in spark ignited (SI) engines and diesel engines. HCCI combustion is a thermal auto ignition of a premixed fuel air mixture, with no flame propagation (as in SI engines) or mixing controlled combustion (as in diesel engines) (Suzuki et al 1998). HCCI engines can run extremely lean (equivalence ratio ~0.4), yielding combustion temperatures low enough that the engine produces extremely low NOx emissions (a few parts per million [ppm]) with no need for after treatment.…”

Section: Project Rationalementioning

confidence: 99%

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Low Cost, High Efficiency, Ultra Low Nox Arice Solution Using Hcci Combustion

Flowers¹

2012

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LOW COST, HIGH EFFICIENCY, ULTRA LOW NOX ARICE SOLUTION USING HCCI COMBUSTION " P u b l i c I n t e r e s t E n e r g y R e s e a r c h ( P I E R ) P r o g r a m F I N A L P R O J E C T R E P O R T LOW COST, HIGH EFFICIENCY, ULTRA LOW NOX ARICE SOLUTION USING HCCI COMBUSTIONAPRILContract Number: 500-02-003Prepared for: California Energy CommissionAvtar Bining, Ph.D. Project ManagerMike Gravely Office Manager Energy Systems Research OfficeLaurie ten Hope Deputy Director RESEARCH AND DEVELOPMENT DIVISION Robert P. Oglesby Executive Director DISCLAIMERThis report was prepared as the result of work sponsored by the California Energy Commission. It does not necessarily represent the views of the Energy Commission, its employees or the State of California. The Energy Commission, the State of California, its employees, contractors and subcontractors make no warrant, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the uses of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the California Energy Commission nor has the California Energy Commission passed upon the accuracy or adequacy of the information in this report. Legal Notice List of Figures List of Tables AbstractThis report documents the development of a Homogeneous Charge Compression Ignition engine for the Advanced Reciprocating Internal Combustion Engine Program of the California Energy Commission. The goal of this research project was to develop and demonstrate a homogeneous charge compression ignition internal combustion engine for stationary power generation applications meeting the advanced reciprocating internal combustion engine program efficiency and emissions goals, primarily the development of a 200 kilowatt engine operating at 45 percent efficiency with 0.015 grams/brake horse power hour nitrogen oxide emissions. While this project did not attain this goal, innovative solutions were developed to many of the technical barriers that prevent homogeneous charge compression ignition from being a practical combustion system for the stationary power generation marketplace. The project focused on converting a Caterpillar 6 cylinder engine model 3406 natural gas generator set to operate in natural gas homogeneous charge compression ignition mode. A key challenge of homogeneous charge compression ignition is control of combustion. A novel system for control of the engine was developed based on thermal management, where recovered heat from the engine exhaust was used to control intake air temperature. Controlling intake air temperature allows control of the timing of the homogeneous charge compression ignition combustion process, and a specially designed dual intake manifold system allowed for control of the engine on a cylinder by cylinder basis. Control of fuel air ratio is another significant technical issue in homogeneous charge compression ignition combustion, and is especially difficult with natural gas fuelled eng...

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“…A homogeneous charge compression ignition diesel combustion (HCDC) system, which is the earliest premixed/direct-injected HCCI combustion system, was given by Odaka et al [61][62][63][64]. In this system, most of the fuel was injected into the intake manifold to create a homogeneous pre-mixture and this premixture was ignited with a small quantity of fuel injected directly into the cylinder.…”

Section: 3 Compound Hcci Combustion (Port and In-cylinder Direct Injmentioning

confidence: 99%