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Title: Direct injection ignition assisted alcohol engine

Abstract

An experimental, direct injection (DI), alcohol-fueled, engine combustion system has been developed for application to diesel engines used in medium duty trucks. A single cylinder version of a 6.6L, 6-cylinder DI diesel engine was designed, built and tested. The baseline diesel engine had a helical port with a moderate swirl ratio of 2.74, a 16.3:1 compression ratio, and a multi-spray fuel injection system. The engine was converted to operate on ethanol and methanol fuels with provisions for spark or glow plug ignition assist. Compression ratio was increased to 19.3:1. A higher rate incline fuel injection pump and larger hole area nozzles were installed to accommodate the larger fuel volume flow rates with alcohol fuels. An experimental high energy, multi-strike ignition system was used to directly ignite one of four fuel-spray plumes. Combustion initiated from the first plume ignited the remaining three plumes via a proposed process of flame propagation from the initial ignition site followed by compression ignition of the peripheral regions of the plumes not yet in contract with the flame. Parametric studies were conducted to optimize ignition and injection system variables, and to examine the effect of increasing combustion chamber temperature levels via heated inlet air. The DImore » alcohol engine produced a 9 to 15% increase in full load BMEP, and a 1 to 1.5% reduction in energy consumption based on the EPA 13-mode transient cycle relative to the baseline DI diesel engine.« less

Authors:
;
Publication Date:
OSTI Identifier:
6446954
Report Number(s):
CONF-880241-
Resource Type:
Conference
Resource Relation:
Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI, USA, 29 Feb 1988; Other Information: Technical Paper 880495
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 09 BIOMASS FUELS; DIESEL ENGINES; IGNITION QUALITY; DIESEL FUELS; CHEMICAL COMPOSITION; ETHANOL; FUEL SUBSTITUTION; METHANOL; FUEL ECONOMY; FUEL INJECTION SYSTEMS; IGNITION SYSTEMS; ALCOHOLS; ENGINES; FUEL SYSTEMS; HEAT ENGINES; HYDROXY COMPOUNDS; INTERNAL COMBUSTION ENGINES; ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; 330800* - Emission Control- Alternative Fuels; 090222 - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989); 330102 - Internal Combustion Engines- Diesel

Citation Formats

LoRusso, J A, and Cibanek, H A. Direct injection ignition assisted alcohol engine. United States: N. p., 1988. Web.
LoRusso, J A, & Cibanek, H A. Direct injection ignition assisted alcohol engine. United States.
LoRusso, J A, and Cibanek, H A. Fri . "Direct injection ignition assisted alcohol engine". United States.
@article{osti_6446954,
title = {Direct injection ignition assisted alcohol engine},
author = {LoRusso, J A and Cibanek, H A},
abstractNote = {An experimental, direct injection (DI), alcohol-fueled, engine combustion system has been developed for application to diesel engines used in medium duty trucks. A single cylinder version of a 6.6L, 6-cylinder DI diesel engine was designed, built and tested. The baseline diesel engine had a helical port with a moderate swirl ratio of 2.74, a 16.3:1 compression ratio, and a multi-spray fuel injection system. The engine was converted to operate on ethanol and methanol fuels with provisions for spark or glow plug ignition assist. Compression ratio was increased to 19.3:1. A higher rate incline fuel injection pump and larger hole area nozzles were installed to accommodate the larger fuel volume flow rates with alcohol fuels. An experimental high energy, multi-strike ignition system was used to directly ignite one of four fuel-spray plumes. Combustion initiated from the first plume ignited the remaining three plumes via a proposed process of flame propagation from the initial ignition site followed by compression ignition of the peripheral regions of the plumes not yet in contract with the flame. Parametric studies were conducted to optimize ignition and injection system variables, and to examine the effect of increasing combustion chamber temperature levels via heated inlet air. The DI alcohol engine produced a 9 to 15% increase in full load BMEP, and a 1 to 1.5% reduction in energy consumption based on the EPA 13-mode transient cycle relative to the baseline DI diesel engine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Conference:
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