The injection of methanol with spark or hot surface ignition is being considered as the most efficient way of using methanol in automotive engines. One of the main components of a diesel engine having significant effect on its performance is the injector mozzle. Besides, methanol owing to its very low viscosity and corrosive nature as compared to petroleum fuels is reported to pose problems to the fuel injection equipment, thereby, adversely affecting the engine combustion and wear characteristics. In this paper Radiotracer technique was employed to study the nozzle needle wear. The tests also showed that methanol had about ten times higher leakage overflow compared to diesel which was attributed to the lower density of the former. The wear characteristics of the nozzles were analysed using diesels of varying sulphur content, neat methanol, and methanol with lubricity additives. It was observed that the needle wear was about 30 % higher with methanol as compared to diesel. Addition of 1 % castor oil or lubricity additive did not address the increased wear problem of methanol.
Some studies on the injector needle wear using diesel and methanol fuels by radiotracers
Einige Untersuchungen mit Radioisotopen zum Verschleiss der Einspritzduesen-Nadeln bei Betrieb von Diesel- und Methanol-Kraftstoffen
7th Int. Symp. on Alcohol Fuels, Inst. Francais du Petrole ; 1 , Okt ; 260-265
1986
6 Seiten, 5 Bilder, 3 Tabellen, 5 Quellen
Conference paper
English
Some studies on the injector needle wear using diesel and methanol fuels by radiotracers
Automotive engineering | 1986
|Diesel injector needle lift sensor
Automotive engineering | 1985
|Diesel injector needle lift sensor
Tema Archive | 1985
|RADIOTRACERS IN PISTON RING WEAR
SAE Technical Papers | 1959
|Radiotracers in piston ring wear
Engineering Index Backfile | 1959
|