Effect of the combustion chamber deposits on octane requirement increase and fuel economy

Conference · Sun Mar 01 04:00:00 EST 1981 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6545359

Nakamura, Y; Yonekawa, Y; Okamoto, N

The effect of combustion chamber deposits on octane requirement increase (ORI) and fuel economy using a field test, bench engine tests and a mini-engine test which was developed in the laboratory was investigated. Thermal properties of combustion chamber deposits help to explain their actions on ORI and fuel economy, e.g., ORI correlated well with the amount of combustion chamber deposits in bench engine and mini-engine tests. On the other hand, in the field test, observed ORI did not correlate with the total deposits, but ORI modified with IOR correlated fairly well with the carbon content of the deposits per unit surface area of combustion chamber (mg/cm/sup 2/), and the present study provides evidence of combustion chamber deposits giving a fuel consumption benefit.

• Research Organization: Toa Nenryo Kogyo K.K., Tokyo, Japan
• OSTI ID: 6545359
• Report Number(s): CONF-810308-(Vol.2)
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 26:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000 -- Petroleum-- Combustion
33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ANTIKNOCK RATINGS
AUTOMOTIVE FUELS
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
CYLINDERS
DEPOSITS
ENERGY CONSUMPTION
ENGINES
EQUIPMENT
FIELD TESTS
FLOW REGULATORS
FUEL CONSUMPTION
FUEL ECONOMY
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
TEMPERATURE EFFECTS
TESTING
THERMAL CONDUCTIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
VALVES