|
Pistons are
the highest stressed and the most critical part of an internal
combustion engine. This is especially true for a two stroke motor.
The four cycle piston only sees heat from combustion every other
stroke, and in between, it has a full stroke to be cooled by the
fresh incoming air. To further aid cooling, four stroke pistons are
often cooled on the underside by oil spray and runs in a cylinder
with no ports to interrupt the rings.
The two stroke piston sees the heat of combustion on every stroke
without the benefit of a cool intake stroke or oil spray. Also, the
two stroke cylinder is full of ports that attract heat, especially
on the exhaust side where the hot gases flow directly over the crown
on their way out of the cylinder, building even more heat in the
cylinder near the exhaust port. This extreme heat can burn the
little lubrication that the piston skirts see. This is why the
piston is the weak link in the two stroke motor.

HVCcycle
applies our TPC ceramic coating to the top of pistons, holding heat
in the combustion chamber where that heat can be used to power the
motor, rather than dissipate through the piston where it can weaken
and burn the piston. This allows
the piston to run much cooler and stronger. Piston skirts are coated
with our TPC Moly coat, a
low friction/anti-seize coating to reduce frictional loses and
piston sticking.
This Process
can double the life of a 2-Stroke piston.
|