Starting of diesel engines: Uncontrolled fuel injection problems

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5637066

Henein, N A

Many problems can develop from the uncontrolled fuel injection during cranking and starting of diesel engines. Some of the problems are related to excessive wear as a result of the high peak pressures reached upon combustion after misfiring, the relatively low rotating speeds and the lack of formation of a lubricating oil film between the interacting surfaces. Another problem is the emission of high amounts of unburned hydrocarbons and white smoke. Experimental results are given for a single cylinder and a multicylinder diesel engine, for the instantaneous angular velocity and cylinder pressures from the starter-on point until the engine fires. The causes of misfiring during cranking are investigated. The role of the increased blow-by gases on the autoignition process at the low cranking speeds is analyzed both analytically and experimentally. The contribution of the instantaneous angular velocity at the time of injection, on the autoignition process is investigated. The need for electronic fuel control during cranking is emphasized.

• Research Organization: Wayne State Univ.
• OSTI ID: 5637066
• Report Number(s): CONF-860263-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSTRACTS
AEROSOLS
AIR POLLUTION MONITORING
ANGULAR VELOCITY
COLLOIDS
COMBUSTION CHAMBERS
COMPARATIVE EVALUATIONS
CYLINDERS
DATA
DIESEL ENGINES
DISPERSIONS
DOCUMENT TYPES
ELECTRONIC CIRCUITS
ENGINES
EXHAUST GASES
EXPERIMENTAL DATA
FILMS
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
IGNITION QUALITY
INFORMATION
INTERNAL COMBUSTION ENGINES
LEADING ABSTRACT
LUBRICANTS
LUBRICATING OILS
MEETINGS
MOTION
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PRESSURE EFFECTS
RESIDUES
ROTATION
SMOKES
SOLS
START-UP
SURFACES
TESTING
THIN FILMS
VELOCITY
WASTES
WEAR