Open AccessДослідження змащувальної здатності дизельного та авіаційного палива на паливному насосі високого тиску
Author(s) -
Стасис Славинскас,
Томас Мицкявичюс,
Арвидас Паулюкас
Publication year - 2021
Publication title -
sučasnì tehnologìï v mašinobuduvannì ta transportì
Language(s) - English
Resource type - Journals
ISSN - 2313-5425
DOI - 10.36910/automash.v2i17.631
Subject(s) - aviation fuel , lubricity , diesel fuel , jet fuel , fuel injection , vapor lock , durability , materials science , fuel tank , plunger , fuel pump , aircraft fuel system , aviation , common rail , fuel oil , brake specific fuel consumption , environmental science , automotive engineering , waste management , combustion , composite material , engineering , aerospace engineering , chemistry , combustion chamber , organic chemistry
This paper presents comparative experimental study’s results of diesel fuel and aviation fuel effect on operational properties of a high-pressure fuel pump of a common rail injection system. The two identical fuel injection systems mounted on a test bed of the fuel injection pumps were prepared for the experimental durability tests. The lubricity properties of diesel fuel and aviation fuel (Jet-A1) were studied using the High-Frequency Reciprocating Rig (HFRR) method. The values of wear scar diameter (WSD) obtained with Jet-A1 fuels were compared to the respective values measured with the reference diesel fuel. The microscopic photographs of the wear scar diameters obtained on above mentioned fuels are presented in the paper. The test results showed that long-term (about 300 hours) using aviation fuels produced a negative effect on the durability of the high-pressure fuel pump. Due to the wear of plunger-barrel units the decrease in the fuel delivery rate occurred of about 6.7 % operating with aviation fuel. The average friction coefficients of Jet-A1 fuels were higher than that of the normal diesel fuel.
Keywords: diesel fuel, aviation Jet-A1 fuel, lubricity, plunger-barrel units, wear scar diameter