EFFECT OF FUEL INJECTION PRESSURE ON DIESEL ENGINE PERFORMANCE
In order to reduce exhaust emissions and fuel consumption, high-pressure injection tests were conducted from two aspects: spray observation and single-cylinder testing. In-cylinder spray promotes mixing through impingement on the cavity wall. Reduction of the nozzle area is effective in causing increased impingement on the wall, though it is desirable to limit the reduction so that the injection period is kept within an appropriate range (about 25 deg of crank angle). Higher pressure through an increase in the geometric injection rate and reduction of the nozzle area, greatly reduces exhaust smoke and fuel consumption in the low to medium speed ranges. The combination of high-pressure injection and pilot injection is an effective way to achieve overall reduction of NOx, exhaust smoke, fuel consumption and combustion noise.
- Text in Japanese. Included in Mitsubishi Motors Technical Review, n2 p46-56 1989.
- Shimada, T
- Shoji, T
- Yamada, K
- Publication Date: 1989
- Pagination: 11 p.
- TRT Terms: Combustion; Diesel engines; Diesel fuels; Engine cylinders; Exhaust gases; Fuel consumption; Fuel injection; Pollutants; Pressure; Sprays (Materials)
- Uncontrolled Terms: High pressure
- Old TRIS Terms: Diesel fuel spray; Single cylinder engines
- Subject Areas: Energy; Highways;
- Accession Number: 00619620
- Record Type: Publication
- Source Agency: National Technical Information Service
- Files: TRIS
- Created Date: Feb 29 1992 12:00AM