A small direct injection diesel engine with a swirl nozzle
A new combustion system for a small direct injection diesel engine has been developed, with a spheroidal cavity and swirl nozzle characterized by weak spray penetration and wide spray angle. This system is intended to realize air-borne mixture formation and good combustion processes over wide operating ranges. In-cylinder observations of the system reveal that droplets are easily bent in the direction of air movement, ignition occurs near the spray tip, and the flame is hard to envelop the spray. In a single cylinder engine of 460 cm/sup 3/ swept volume, the system realizes active diffusion burning and mild premixed burning despite of long ignition delay, and provides low fuel consumption and low smoke emission, especially at low speeds.
- Research Organization:
- Toyota Central Research and Development Labs., Inc.
- OSTI ID:
- 6373334
- Report Number(s):
- CONF-870204-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR FLOW
AIR POLLUTION ABATEMENT
COLLOIDS
CYLINDERS
DESIGN
DIESEL ENGINES
DIFFUSION
DISPERSIONS
DROPLETS
ENGINES
FLAMES
FLUID FLOW
FUEL ECONOMY
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
IGNITION
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
MIXING
NOZZLES
PARTICLES
PERFORMANCE
POLLUTION ABATEMENT
RESIDUES
SMOKES
SOLS
SPRAYS
THERMAL DIFFUSION
VELOCITY
VOLUME
VORTEX FLOW