Experimental study on the two stage injection of diesel and gasoline blends on a common rail injection system. (1st November 2015)

• Record Type: Journal Article
• Authors: Han, Dong; Duan, Yaozong; Wang, Chunhai; Lin, He; Huang, Zhen
• Is Part Of: Fuel. Volume 159(2015)
• Page Start: 470
• Page End: 475
• Publication Date: 2015-11-01
• Subjects: Two stage injection -- Injection characteristics -- Diesel -- Gasoline -- Common rail; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2015.07.005
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: Two stage injection of diesel–gasoline blends on a common rail system is studied. Injection dynamics and characteristics are studied with changed parameters. Diesel/gasoline blends and diesel have similar cycle injection rate and quantity. Extended pilot injection pulse causes slightly reduced main injection mass. Abstract: This paper characterizes the two stage injection processes of pure diesel and two diesel–gasoline blends using a diesel common rail injection system. The investigated fuel injection characteristics include the cycle injection quantity, injection rate and injector inlet pressure characteristics, with changes in gasoline proportion and pilot injection energizing pulse. Increased gasoline proportion has negligible influences on the cycle injection rate and mass, as well as the pressure dynamics during the injection process. In addition, the extended pilot injection energizing pulse leads to increased pressure drop at the injector inlet during the main injection and causes reduced main injection mass.