The
original engine is patented and the Company (Axial Vector Energy) 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.
2.1 DESIGN OVERVIEW
The engine has two identical
cylindrical blocks that each has 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 is shown below in fig. 2.1 and can be described as a free
piston, axially cam driven 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.
2.2 SPECIFICATIONS
With
small turbine shape, the Dyna-Cam takes 50% less space for installation yet
produces twice the torque output. Depending on the success of the initial
engine and possibly additional funding, larger and smaller engine sizes may be
developed, to deliver more or less horsepower, turbo, or supercharged engines
and engines fueled by diesel or jet fuel.
Key
Specifications:-
Ø 200
HP @ 2000 RPM
Ø 175
HP @ 1600 RPM
Ø 650ft.lb
torque @ 1200 RPM
Ø 525ft.lb.
torque @ 2000 RPM
Ø 373
Cubic Inches
Ø 265
Lbs Dry Weight
Ø 12
Cylinder, 6 Piston
Ø 3.25"
Bore - 3.75" Stroke
Ø .40
Lb./Hp-Hr @ Cruise
Ø .47
Lb./Hp-Hr @ Full pwr.
Ø Fuel
Injected
Ø Dual
Ignition or Single
Ø 13"
Diameter x 40" Length
