کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7045249 | 1457091 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The dual-port fuel injection system for fuel economy improvement in an automotive spark-ignition gasoline engine
ترجمه فارسی عنوان
سیستم تزریق سوخت دو پورت برای بهبود وضعیت سوخت در موتور بنزینی موتور احتراق جرقه زنی
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کلمات کلیدی
PDIBSCOBSNOxIVOEOICVIBMEPPFITHCDPIBSFCGDIaTDCbTDC - BTDCNOx - NOXNitric oxides - اکسید نیتریکafter top dead center - بعد از مرده مردهbrake mean effective pressure - ترمز فشار متوسط موثرbrake specific fuel consumption - ترمز مصرف سوخت خاصPort-fuel injection - تزریق سوخت پورتparticle number - تعداد ذراتintake valve opening - دریچه ورودی بازCrank Angle - زاویه میل لنگbefore top dead center - قبل از مرده مردهcarbon monoxide - منوکسیدکربنEnd Of Injection - پایان تزریقtotal hydrocarbon - کل هیدروکربن
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The purpose of the present study was to investigate the performance of the dual-port injection (DPI) system in an automotive spark-ignition engine. The DPI system utilizes two port fuel injection (PFI) injectors per cylinder, i.e., one injector at each intake port. An original 4-cylinder PFI engine head was modified to accommodate total 8 PFI injectors. In the present study, three spray angles and two install configurations were investigated in the intake port visualization, steady-state part-load experiments, and cold-start experiment. The intake port spray visualization experiment showed that the wider fuel spray provided better fuel distribution, but also more wall wetting. The steady-state engine experiment at the several critical part-load conditions showed that the DPI system in combination with the open-valve-injection strategy achieved the most brake specific fuel consumption (BSFC) reduction of 4.6%. The average BSFC reduction of the 9-point experiment was 2.8%. The cold-start experiment also showed a fuel economy gain by the DPI system. In the cold-start experiment the wider spray angle exhibited higher total hydrocarbon emission likely due to the greater wall wetting observed in the intake port spray images.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 138, 25 June 2018, Pages 300-306
Journal: Applied Thermal Engineering - Volume 138, 25 June 2018, Pages 300-306
نویسندگان
Yonggyu Lee, Seungmook Oh, Changup Kim, Junsun Lee, Kanghun Lee, Junghwan Kim,