Browse > Article

A Developement of Ultra High Pressure Injection Equipment for Study on Diesel Spray Characteristics with Ultra High Pressure  

정대용 (성균관대학교 기계공학부 대학원)
이종태 (성균관대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.5, 2003 , pp. 50-59 More about this Journal
Abstract
It was known that high pressure injection is an effective method to enhance thermal efficiency and decrease exhaust emissions in diesel engines. If injection pressure becomes ultra high, it is predicted that there may be a suitable injection pressure which the enhancement rate of spray characteristics is moderate. Also, there may be a limit injection pressure which spray characteristics is reversed and get worse. But these are unknown. To investigate a suitable injection pressure and a limit injection pressure, ultra high pressure injection equipment(UHPIE), which can realize the injection pressure of 3,200bar, was developed. UHPIE is a basic apparatus of single shot injection, and ultra high pressure was achieved by second stage rapid compression in short time. From the evaluation of UHPIE, a injection curve like a conventional diesel engine(jerk type) was realized. Also, it was proved that repetition of experiment was excellent. Therefore it was found that there was no problem to perform the study on the ultra high pressure injection with UHPIE. Consequently, the foundation of the study on ultra high pressure injection could be established.
Keywords
Ultra high pressure injection; Ultra high pressure injection equipment; Injection pattern; Spray characteristics;
Citations & Related Records
연도 인용수 순위
  • Reference
1 The Effect of Injection Parameters and Swirl on Diesel Combustion with High Pressure Fuel Injection /
[ S.Shundoh;T.Tsujimura ] / SAE 910489
2 The Influence of High Pressure Fuel Injection on Performance and Exhaust Emission of High Speed Direct Injection Diesel Engines /
[ K.Oblaender;K.Kollmann;M.Kraemer;I.Kutschera ] / SAE 890438
3 A Basic Study on Combustion of Ultra High Pressure Injection /
[ D.Y.Jeong;H.S.Ha;J.T.Lee ] / 1998 KSAE Autumn Conference Proceeding
4 High-Pressure injection Pumps with Electronic Control for Heavy-Duty Diesel Engines /
[ R.Schwartz ] / SAE 850170
5 Fuel-injection Equipment for Heavy Duty Diesel Engines for U.S. 1991/1994 Emission Limits /
[ G.Stump;W.Polach;N.Muller;J.Warga ] / SAE 890851