تحلیل تجربی تأثیر فشار سوخت و گرفتگی فیلتر بر نرخ پاشش انژکتورهای خودرو

نوع مقاله : مقاله علمی

نویسندگان
1 استادیار، گروه مهندسی مکانیک، دانشگاه فنی و حرفه ای، تهران، ایران
2 گروه مهندسی مکانیک، دانشگاه فنی و حرفه ای، تهران، ایران
چکیده
این تحقیق با هدف تحلیل تجربی تأثیر فشار سوخت و گرفتگی فیلتر بر نرخ پاشش انژکتورها انجام شده است. بدین منظور، یک دستگاه تست انژکتور به‌صورت آزمایشگاهی طراحی و ساخته شد. این دستگاه قابلیت انجام تست‌های نشتی، بررسی شکل و مقدار پاشش انژکتورها را دارد. آزمایش‌ها در شش فشار 20، 30، 60، 80، 90 و 100 پوند بر اینچ مربع انجام شد. نتایج نشان داد در حالت کلی متوسط پاشش انژکتورها با افزایش فشار افزایش می‌یابد؛ به عنوان نمونه، افزایش فشار از 20 به 30 پوند بر اینچ مربع در بازه زمانی 30 ثانیه منجر به افزیش 12 درصدی مقدار پاشش سوخت گردید. همچنین مشخص شد که با افزایش ولتاژ سیستم، مقدار پاشش سوخت نیز افزایش می‌یابد. به‌عنوان مثال، در مدت زمان 10 ثانیه، سیستم با ولتاژ 10 ولت نسبت به حالت 6 ولت، 7 میلی‌متر سوخت بیشتر پاشش می‌کند. در نهایت مشخص شد با توجه به درصد گرفتگی فیلتر، فشار سیستم در محدوده بین 5/4 تا 5/6 بار خواهد بود.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Experimental Analysis of the Impact of Fuel Pressure and Filter Clogging on the Spray Rate of Automotive Fuel Injectors

نویسندگان English

Bahman Rahmatinejad 1
Hossein Rahimi Asiabaraki 2
Farzin Azimpoor Shishevan 2
1 Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran.
2 Department of Mechanical Engineering, National University of Skills (NUS), Tehran, Iran.
چکیده English

This research was conducted with the aim of empirically analyzing the impact of fuel pressure and filter clogging on the injection rate of injectors. To this end, a laboratory injector testing device was designed and constructed. This device is capable of performing leakage tests and examining the shape and quantity of injector spray. The experiments were conducted at six pressures: 20, 30, 60, 80, 90, and 100 pounds per square inch. The results showed that, in general, the average spray rate of the injectors increases with an increase in pressure; for instance, raising the pressure from 20 to 30 pounds per square inch over a period of 30 seconds resulted in a 12% increase in fuel spray volume. Additionally, it was found that as the system voltage increases, the fuel spray volume also increases. For example, within a period of 10 seconds, the system at a voltage of 10 volts sprays 7 millimeters more fuel compared to the 6-volt setting. Finally, it was established that, depending on the percentage of filter clogging, the system pressure will be between 4.5 to 6.5 bar.

کلیدواژه‌ها English

Filter blockage
injector troubleshooting
experimental analysis
Pressure changes
fuel consumption
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  • تاریخ دریافت 08 آذر 1403
  • تاریخ بازنگری 19 بهمن 1403
  • تاریخ پذیرش 19 اسفند 1403
  • تاریخ اولین انتشار 19 اسفند 1403
  • تاریخ انتشار 19 اسفند 1403