OPOC s30 FIS requirement.ppt pg. 1 Combat Propulsion Systems Description of Opposed Piston, Opposed Cylinder (OPOC) s30 Engine • 13.5 hp at 6,000 rpm • Liquid cooled (fuel or coolant) • Supercharged (integral with engine) • Two stroke Diesel (compression ignition) • JP-8, Diesel, Jet A. JP-8 & Diesel also may be the lubricant and coolant • Power Density – 0.9 hp per pound • Dry Engine weight approximately 15lbs not including muffler & fuel system • 85cc displacement per module (each cylinder has 42.5cc) • 0.65 lbs/hp-hr Fuel Consumption at 13.5 hp (1.0 gal/hr) • Engine speed 1,500 rpm to 6,000 rpm
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OPOC s30 FIS requirement.ppt pg. 1
Combat Propulsion Systems
Description of Opposed Piston, Opposed Cylinder (OPOC) s30 Engine
• 13.5 hp at 6,000 rpm
• Liquid cooled (fuel or coolant)
• Supercharged (integral with engine)
• Two stroke Diesel (compression ignition)
• JP-8, Diesel, Jet A. JP-8 & Diesel also may be the lubricant and coolant
• Power Density – 0.9 hp per pound
• Dry Engine weight approximately 15lbs not including muffler & fuel system
• 85cc displacement per module (each cylinder has 42.5cc)
• 0.65 lbs/hp-hr Fuel Consumption at 13.5 hp (1.0 gal/hr)
• Engine speed 1,500 rpm to 6,000 rpm
OPOC s30 FIS requirement.ppt pg. 2
Combat Propulsion Systems
Fuel Injection System Requirements for the OPOC s30 EngineRequirements• JP-8 primary fuel, Jet A, Diesel Fuel secondary
• 6000 injections per minute per fuel injector (2 required per engine)
• Fuel injector electronically controlled via pulse width modulation
• Fuel supply pressure to injector – 400 bar (~6,000 psi)
• Fuel flow per injector at 6,000 rpm, full load – 8 mm^3/injection
• Fuel injection duration at 6,000 rpm, full load -30 degrees of crankshaft rotation or 0.83 msec
• Fuel flow at no-load idle (~1500 rpm) - 1.5 mm^3/injection, 250 bar fuel supply pressure and ~0.2 msec
OPOC s30 FIS requirement.ppt pg. 3
Combat Propulsion Systems
opoc-S30 Diesel
OPOC s30 FIS requirement.ppt pg. 4
Combat Propulsion Systems
100 mm160 mm
412 mm
opoc-S30 Diesel
Swirl chamber concept 1
OPOC s30 FIS requirement.ppt pg. 5
Combat Propulsion Systems
100 mm 90 mm
150 mm
opoc-S30 Diesel
Swirl chamber concept 1
OPOC s30 FIS requirement.ppt pg. 6
Combat Propulsion Systems
120 mm
opoc-S30 Diesel
Swirl chamber concept 2
OPOC s30 FIS requirement.ppt pg. 7
Combat Propulsion Systems
opoc-S30 Diesel
Swirl chamber concept 2
OPOC s30 FIS requirement.ppt pg. 8
Combat Propulsion Systems
opoc-S30 Diesel
OPOC s30 FIS requirement.ppt pg. 9
Combat Propulsion Systems
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