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