Advanced development of rotary stratified charge 750 and 1500 HP military multi-fuel engines at Curtiss-Wright

Book · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5702589

Jones, C

During the period from 1977 to 1982, two and four rotor naturally aspirated Stratified Charge Rotary Combustion engines were under development for the U.S. Marine Corps. These engines are described and highlights of work conducted under the government ''Advanced Development'' contracts are discussed. The basic direct injected and spark ignited stratified charge technology was defined during 1973-1976 for automotive engine applications. It was then demonstrated that the unthrottled naturally aspirated Rotary could match indirect injected diesel fuel consumption, without regard to fuel cetane or octane rating. This same technology was scaled from the 60''/sup 3//rotor automotive engine module to the 350''/sup 3//rotor military engine size. In addition, parallel company-sponsored research efforts were undertaken to explore growth directions. Tests showed significant thermal efficiency improvement at lean air-fuel ratios. When turbocharged, high exhaust energy recovery of this ported engine provided induction airflow sufficient for increased output plus excess for operation at the lean mixture strengths of best combustion efficiency. With additive improvements in mechanical efficiency accruing to higher BMEP operation, the potential for fuel economy in the same range as direct injected diesels was demonstrated. These lightweight, compact, multi-fuel engines are believed to open new possiblities for lightweight, reliable, highly mobile and agile military fighting vehicles of the future.

• OSTI ID: 5702589
• Report Number(s): SAE-TP-840850
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330104 -- Internal Combustion Engines-- Rotary
ADDITIVES
AIR FLOW
ANTIKNOCK RATINGS
AUTOMOTIVE FUELS
COMBUSTION PROPERTIES
COMPARATIVE EVALUATIONS
COMPRESSORS
DESIGN
DIESEL ENGINES
EFFICIENCY
ENERGY CONSUMPTION
ENGINES
EQUIPMENT
FLUID FLOW
FUEL ADDITIVES
FUEL CONSUMPTION
FUEL SUBSTITUTION
FUEL-AIR RATIO
FUELS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MECHANICAL EFFICIENCY
MILITARY EQUIPMENT
PERFORMANCE
RELIABILITY
RESEARCH PROGRAMS
ROTARY ENGINES
SIZE
STRATIFIED CHARGE ENGINES
SUPERCHARGERS
THERMAL EFFICIENCY
TURBOCHARGERS
VEHICLES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WEIGHT