Development status of a small, direct-injection diesel engine at Isuzu

Book · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5501682

Ishida, S; Kihara, R; Furubayashi, M

Development status of small direct injection diesel engine at Isuzu Motors Ltd. is reviewed. There is much difficulty in combustion optimization of small DI engines, due to small combustion chamber volume, large surface to volume ratio, wide engine speed range and so on. Novel ideas in the area of injection system, combustion chamber and induction swirl were tried to solve these problems and their effects are presented here. Our prototype DI engines which adopted some of these ideas has turned out to have better fuel economy by about 15 percent, 2 - 3 dB(A) higher noise level than IDI and almost the same power output performance as IDI. As to exhaust emissions, they have a possibility to conform to '86 California emission standards, in inertia weight classes up to 2625 LBS. The remaining problem areas are noise emission, durability of injection pump and cabin heater performance. These problems must be solved by further innovation, before DI engines will be successful in passenger car application.

• Research Organization: Isuzu Motors Limited
• OSTI ID: 5501682
• Report Number(s): TP-850068
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
AUTOMOBILES
CALIFORNIA
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
DESIGN
DIESEL ENGINES
EMISSION
ENGINES
EXHAUST GASES
FEDERAL REGION IX
FLUID FLOW
FLUIDS
FUEL ECONOMY
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GASEOUS WASTES
GASES
HEAT ENGINES
HEATERS
INTERNAL COMBUSTION ENGINES
NOISE
NORTH AMERICA
OPTIMIZATION
OXIDATION
PERFORMANCE
SERVICE LIFE
STANDARDS
THERMOCHEMICAL PROCESSES
USA
VEHICLES
VELOCITY
VORTEX FLOW
WASTES