کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
709077 1461109 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wear behaviour of piston seals in flow meter of fuel dispenser under different pressure conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Wear behaviour of piston seals in flow meter of fuel dispenser under different pressure conditions
چکیده انگلیسی

The main component of the flow-meter in a fuel dispenser is a piston with Polytetrafluoroethylene (PTFE) O-ring seals moving in a cylinder with stainless steel liner. So wear of PTFE seal is a key factor to determine the accuracy and the life of a flow meter. This paper reports the effect of different pressure conditions on the wear rate of the PTFE seals in a gasoline dispenser system. The pressure signals at the meter inlets were detected by pressure transducers, which were sampled and analyzed by the computer data processing system. The wear of PTFE O-ringseal was measured after the flow-meter recorded a value over one million liters. It is shown that bigger the variation in pressure higher is the wear rate of PTFE. This also leads to early failure of sealing systems. A possible explanation is also made in this paper based on the formation of PTFE transfer film on the counterface of the stainless steel.

Figure optionsDownload as PowerPoint slideHighlights
► Wear of PTFE seal is a key factor to determine the accuracy and the life of flow meter.
► We report the different pressure conditions effect on the wear rate of the PTFE seals in a gasoline dispenser system.
► We sampled and analyzed the pressure signals at the meter inlets.
► Fiercer vibrations make bigger wear rate of PTFE seals and shorter the life of the flow meter.
► The transfer film between the seal and the steel is affected by the vibration of the loading.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Flow Measurement and Instrumentation - Volume 28, December 2012, Pages 45–49
نویسندگان
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