Development of ceramic pre-combustion chamber for the automotive diesel engine
Book
·
OSTI ID:5833928
A precombustion chamber (hot plug) made of the silicon nitride ceramics has been developed. The hot plug constitutes a component of the combustion chamber of swirl chamber diesel engines. It is subjected to the severest thermal load of all the diesel engine operating components. Unlike metal hot plugs, the ceramic hot plug application requires a unique design approach to meet the ability of the ceramic materials. That is, the soft engine mounting is necessary to avoid the concentration of mechanical stress resulting from the high Young's modulus of the ceramic and control of temperature distribution is also required to reduce thermal stress. Due to the heat insulating construction, the ceramic hot plug permits the combustion performance to be improved at a low speed and load, resulting in improved noise, startability, and hc emission. In additional the ceramic hot plugs are already being produced for diesel passenger car.
- OSTI ID:
- 5833928
- Report Number(s):
- SAE-TP-840426
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
CERAMICS
COMBUSTION CHAMBERS
COMBUSTION PROPERTIES
CONTROL
DESIGN
DIESEL ENGINES
ENGINES
FLUID FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
NOISE POLLUTION ABATEMENT
PNICTIDES
POLLUTION ABATEMENT
SILICON COMPOUNDS
SILICON NITRIDES
STRESS INTENSITY FACTORS
TEMPERATURE CONTROL
TEMPERATURE DISTRIBUTION
TEMPERATURE EFFECTS
THERMAL INSULATION
VEHICLES
VELOCITY
VORTEX FLOW
YOUNG MODULUS
330102* -- Internal Combustion Engines-- Diesel
CERAMICS
COMBUSTION CHAMBERS
COMBUSTION PROPERTIES
CONTROL
DESIGN
DIESEL ENGINES
ENGINES
FLUID FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
NOISE POLLUTION ABATEMENT
PNICTIDES
POLLUTION ABATEMENT
SILICON COMPOUNDS
SILICON NITRIDES
STRESS INTENSITY FACTORS
TEMPERATURE CONTROL
TEMPERATURE DISTRIBUTION
TEMPERATURE EFFECTS
THERMAL INSULATION
VEHICLES
VELOCITY
VORTEX FLOW
YOUNG MODULUS