Development of High Pressure H2 Gas Injectors, Capable of Injection at Large Injection Rate and High Response Using a Common-rail Type Actuating System for a 4-cylinder, 4.7-liter Total Displacement, Spark Ignition Hydrogen Engine Tokyo City Univ

Format:

Conference/Event

Author/Creator:

Yamane, Yamane, author.

Contributor:

Goto, Yuichi

Nogami, Mai

Oikawa, Masakuni

Satō, Yoshio

Umemura, Yukio

Conference Name:

SAE International Powertrains, Fuels and Lubricants Meeting (2011-08-30 : Kyoto, Japan)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

Key requirements of engines for vehicles are large output power and high efficiency, low emission as well as small size and light weight. Hydrogen combustion engines with direct injection have the characteristics to meet these factors. Tokyo City University, former Musashi Institute of Technology, has studied hydrogen fueled engines with direct injection since 1971. The key technology in the development of hydrogen fueled engines is the hydrogen injector for direct injection with the features such as high injection rate, high response and no hydrogen gas leakage from the needle valve of the hydrogen injector. A common-rail type system to actuate the needle valves of the high pressure hydrogen injectors was intentionally applied to fulfill good performances such as large injection rate, high response and no hydrogen gas leakage. Eventually, high pressure hydrogen injectors have been developed for direct hydrogen engines at the injection pressure of 20 MPa at the maximum, capable of performing large injection rate, high response and no hydrogen gas leakage from the hydrogen needle valves. The leakage of hydrogen gas was not observed definitely for such time as 700 hours

Notes:

Vendor supplied data

Publisher Number:

2011-01-2005

Access Restriction:

Restricted for use by site license