Dyna-Cam Engine Seminar Report

DynaCam Engine Seminar Report
The Dyna-Cam engine originally came from a design by the Blazer brothers, two American engineers in the brass era automotive industry who worked for Studebaker in 1916. They sold the rights to Karl Herrmann, Studebaker's head of engineering, who developed the concept over many years, eventually taking out US patent 2237989 in 1941. It has 6 double-ended pistons working in 6 cylinders, and its 12 combustion chambers are fired every revolution of the drive shaft. The pistons drive a sine-shaped cam, as opposed to a swashplate or wobble-plate, hence its name.In 1961, at the age of 80, Herrmann sold the rights to one of his employees, Edward Palmer, who set up the Dyna-Cam Engine Corp. along with son Dennis. Edward's son Dennis and daughter Pat then helped get the engine installed in a Piper Arrow aeroplane. About 40 prototype engines were built by the Herrmann Group and another 25 built by the Dyna-Cam Group since they acquired the engine and opened their shop.
The Dyna-Cam is a good design and seems to offer important advantages, particularly for aviation, due to the RPM at which the horsepower is developed. There is no need for prop reduction gears which is in itself significant. The Dyna-Cam is not a miracle engine, it is just a different configuration with unique advantages.
The Dyna-Cam engine has the big advantage that an earlier version was tested and used successfully for over twenty years by the U.S. Navy as the power plant for the Mark 46 torpedo which is discussed further on the page titled R&D. This proved that the basic design of the piston and cam actuation was a success.
Compared to conventional engines of similar horsepower, the Dyna-Cam has demonstrated these major advantages:
  • Higher Power & Torque
  • Easier to Rebuild
  • Higher Reliability
  • Quieter Operation
  • 50% Fewer Parts
  • 50% Smaller Size
  • Better Fuel Economy
  • Longer Time Between Overhauls
  • Very Fast Throttle Response
  • Liquid Cooled
  • Less Weight
  • Smooth "vibration free" Operation
  • Lower Maintenance Cost

Key Specifications of Dyna-Cam Engine

  • 200 HP @ 2000 RPM
  • 175 HP @ 1600 RPM
  • 650ft.lb torque @ 1200 RPM
  • 525ft.lb. torque @ 2000 RPM
  • 373 Cubic Inches
  • 265 Lbs Dry Weight
  • 12 Cylinder, 6 Piston
  • 3.25" Bore - 3.75" Stroke
  • .40 Lb./Hp-Hr @ Cruise
  • .47 Lb./Hp-Hr @ Full pwr.
  • Fuel Injected
  • Dual Ignition or Single
  • 13" Diameter x 40" Length
Download Seminar Report on Dyna-Cam Engine Program

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