Cold-Start Minidiesel Engine Development
Abstract
Military mission performance in a chemically contaminated environment necessitates the wearing of chemically impermeable protective garments. Soldiers encapsulated in these protective garments will succumb to heat stress in a hot environment. Consequently, a microclimate cooling system is being developed. In the design, a vapor compression cycle chills water which is then circulated over the body to absorb heat via a cooling garment. The engine, the prime mover in the system, is a major component. Commercially available engines of approximately 0.5 hp at 4000 rpm, the required size, include model aircraft engines and small outdoor power equipment (string trimmer) engines. However, these engines do not run on JP-8 or diesel fuel, a requirement for military use. This report details design, evaluation, and results of three engines. These include: the potential of a high compression, carbureted, glow plug engine operating on diesel fuel; the potential of a high compression, spark assist, fuel injected engine operating on diesel fuel; and a true high compression, fuel injected engine operating on diesel fuel. Diesel engines, Microclimate cooling system, Diesel fuels, Vapor compression, Cold start, Engines.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1993
- Accession Number
- ADA271064
Entities
People
- Conrad Collins