Evaluation of Three Military Diesel Injection Systems on Alternative Fuels.
Interim rept. Nov 84-Dec 86,
SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY
Pagination or Media Count:
Army diesel-powered vehicles are often required to operate in remote areas and in extreme ambient conditions, e.g., arctic or desert areas. Use of emergency fuels with less than optimum properties can result in unsatisfactory engine performance. This study examined the relationship between front-end volatility of the fuel and vapor lock at high fuel temperatures and the relationship between high viscosity fuels and pump-filling problems at low fuel temperatures. Three Army diesel injection systems representing the majority of Army equipment were selected for testing. Fuel flow rate tests were conducted at both high and low fuel temperatures and at a variety of operating conditions. Test fuels were blended to provide fuels with a range of 10 percent points for the high-temperature tests and fuels with a range of viscosities for the low-temperature tests. The front-end volatility of the fuel was not observed to present any problems at the high temperatures. However, fuel viscosity at both high and low temperatures was observed to affect the fuel flow rate for each injection system. Keywords Diesel injection, Fuels, Property effects, Diesel fuels.
- Reciprocating and Rotating Engines