Bourke designed his engine to fulfill the five desirable attributes for an efficient internal combustion engine laid down by de Rochas a century ago


Bourke Engines contradict typical design, they use detonation as a means of extracting more energy from each pound of fuel


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Bourke 30 Specifications

As claimed by Russell Bourke, Inventor

  • Normally aspirated, carburetor or fuel injected
  • Highly efficient exhaust scavenging
  • High pressure pre-charge from underneath piston to combustion chamber during transfer cycle
  • True linear movement
  • Free piston engine
  • No angularity of moving parts.
  • No piston side loading
  • Cylinders sealed off from crankcase
  • Horizontally opposed twin cylinder, common plane
  • Mono stroke, i.e. two directly opposed 2 stroke cylinders connected through one common/linear rod/yoke assembly
  • Two 135 degree power pulses per revolution
  • Valving: ported
  • Balanced precision reverse cam effect roller crankshaft
  • High horsepower to weight ratio
  • 30 cubic inch 2 cylinder Bourke cycle engine
  • Constant RPM stationary power plant
  • Potential adiabatic operation at specific RPM range
  • Test fuel: low octane gasoline, coleman and 1-K
  • Weight: +/- 38 pounds.
  • Aluminum crankcase, cylinder castings and pistons.
  • Steel cylinder liners, connecting rods, yoke plates, camshaft, wrist pins, bearings
  • 35 hp or more at 5,000 RPM
  • Estimated up to 5 HP per cubic inch
  • Fuel consumption: 1/4 pound or less of fuel per horsepower hour
  • Carburetor or fuel injection
  • High RPM ignition system
  • Multi fuel capable, i.e. natural gas, propane, low octane fuels
  • Tested fuels: gasoline, bio diesel, fuel oils, white gas, 1-K
  • Other fuel tpes not yet tested
  • Exhaust gas temperature: 190° to 240° F!
  • Exhaust gas components resulting from regular no lead gasoline: carbon dioxide and water vapor
  • Emission: much lower than normal PPM HC burning regular no-lead fuel
  • Compression ratio: 8:1 to 20:1
  • Fuel air ratio: 30:1 to 50:1
  • Exhaust system: lightweight baffled aluminum housings
  • Liquid or air cooled
  • Lubrication system: internal splash/vacuum type oiling
  • Ignition system: electronic capacitive discharge
  • Self sustaining pressure ignition for diesel applications


Could be used to power generators, pumps, hybrid cars, boats, ultra-light aircraft, and many others! Your imagination is your only limit. Best use tested so far is constant duty applications.

  • Highly fuel efficient
  • Environmentally friendly
  • Multiple fuel capable
  • High HP to weight ratio
  • Capable of safe constant duty operation
  • Very low fuel consumption
  • No emission control devices needed
  • Simple construction
  • Very low maintenance
  • Easy overhaul
  • No oil changes needed


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