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Definition of Dyna-cam engine
The original engine is patented and the Company has now made patent applications
and received patent pending status for additional features that have been refined.
Activity and contacts from the website indicate that there are a lot of buyers
for this new engine technology.
The
first production engine has been assembled and completed initial testing. The
Company has had to design and build a custom dynamometer on which to complete
engine testing. After testing has been completed on the first engine, it was installed
in an aircraft like a Cessna 182 or a Piper Cherokee that will be able to demonstrate
the engine's performance capability Additional
installations are being discussed with owners of several experimental homebuilt
aircraft, including, a LancAir, an RV6, a custom designed pusher fashioned after
the Long Easy, a new designed homebuilt called the Atlantica, and several others,
including a Sea Bee, a Seawind homebuilt, and possibly a Cessna 185. The initial
Dyna-Cam Engine to be manufactured and sold is rated at 200 HP. The engine is
13" in diameter, 40" long and weighs 300 pounds with basic accessories.
It has unique features and major benefits over conventional engines of similar
weight and power.The benefits include lower manufacturing costs in equal production,
50% smaller size, 50% fewer replacement parts, better fuel economy, smoother operation,
lighter weight, plus nearly 100% higher torque enabling the engine to turn high
efficiency propellers with lower noise output.
DESIGN
OVERVIEW
The
engine has two identical cylindrical blocks that each have six cylinders arranged
parallel around the main shaft located in the center. Cylinders of both blocks
line up so that six double-ended pistons can fire back and forth between the aligned
cylinders of each block Each free floating piston is cut away on the central interior
side and fits with precision around a 9" diameter, four lobe, sinusoidal
cam that is keyed to the main shaft. As
the pistons fire back and forth, the main cam rolls through the pistons causing
the central shaft to turn. All moving surfaces are roller bearing surfaces. Another
smaller 5" cam is attached to the main shaft at the outer end of each block.
As each valve cam turns, it pushes against hydraulic lifters which push against
the poppet valves inside each cylinder head. The engine is a 4-stroke engine.
Because of the design of the main cam, each of the twelve cylinders fires with
every revolution of the shaft, in contrast to three times with conventional six-cylinder
engines. The engine can be described as a free piston, axially cam-drive engine. External
accessory systems manage air intake, fuel, oil flow, cooling and exhaust. All
accessory systems operate similar to standard systems used on conventional engines
and may be easily updated with the latest state-of-the-art technology. Devices
used on normal piston engines can be adapted to the Dyna-Cam Engine for achieving
the lowest possible emissions or higher power output, i.e. electronic ignition,
state of the art emissions devices, or high tech fuel injection. Higher torque
at lower RPMs and reduced internal friction allow more work to be accomplished
by the Dyna-Cam for the same measured quantity of fuel when compared to the conventional
piston engine.
The functional and operational design of the Dyna-Cam Engine is complete. Forty
prototype units have been tested and rebuilt resulting in the final design that
was certified. Minor changes have been completed to expedite assembly and facilitate
cost effective mass production. The first engines are now in production and purchase
orders and down payments are being taken.
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