A Neat Methanol Direct Injection Combustion System for Heavy-Duty Applications 861169
A combustion system has been developed to burn neat (pure) methanol in a direct-injection four-stroke-cycle engine. Primary objectives were to obtain low fuel consumption and long component life to make the engine suitable to replace heavy-duty diesel fueled engines. A glow plug was placed in a modified quiescent combustion chamber to ensure reliable methanol ignition at all engine operating conditions.
The methanol engine provides thermal efficiency nearly equal to the diesel engine from which it is derived, in addition, nitrogen oxide emissions are reduced by 50 percent and exhaust smoke is negligible. Hydrocarbon emissions are still above the baseline diesel engine.
Laboratory and field durability tests of over 2000 hours have been completed. Excellent cold-start capability has been established.
Citation: Kroeger, C., "A Neat Methanol Direct Injection Combustion System for Heavy-Duty Applications," SAE Technical Paper 861169, 1986, https://doi.org/10.4271/861169. Download Citation
Author(s):
Craig A. Kroeger
Affiliated:
Research Department, Caterpillar Inc.
Pages: 20
Event:
1986 SAE International Off-Highway and Powerplant Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Nitrogen oxides
Diesel / compression ignition engines
Combustion chambers
Fuel consumption
Hydrocarbons
Methanol
Combustion and combustion processes
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