| Gas Engine
Propane Demand
Valve Plans
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|
Best
described by one of Jerry's
good friends:
"Propane
is
burned in some miniature
engines rather than gasoline
or alcohol.
The exhaust produced is not as
offensive and the engine runs
cleaner.
Small propane cylinders are
used. A pressure regulator is
fastened to
the bottle to allow a
regulated flow. The flow is
then attached to the
inlet side of the demand valve
where it cannot escape. The
outlet side
of the demand valve is
attached to the engine
carburetor. During the
intake stroke of the engine a
vacuum demand is created. This
demand
(suction) trips the needle in
the demand valve and allows a
flow of
propane to the engine. When
the demand stops so does the
propane flow.
Scuba divers have a similar
device on their tanks to allow
a flow of
air on demand." - Chuck
Harty
Notice: The
improper handling and use
of propane can be hazardous!
Conversely, when proper care
and precautions are taken
and common sense
is used, it can also be very
safe.
Disclaimer: These plans
are for basic information
only and are not
intended to be "plans for
construction".
These drawings represent
what
the author has done and we
have no way to supervise
your design,
workmanship or selection of
materials. If you purchase
these plans
and/or make any similar
devices based on these
drawings, we will not be
held responsible in any way
if for any reason if
accident occurs.
The plan consist of one sheet
with drawings, assembly and
operation
notes.
The
Following Parts Also
Available:
|
Tecumseh Needle Valve
Assembly
|
Tecumseh Diaphragm
Assembly
|
|
|
"Your
plans look the best
I have seen." - H.
Schultz, Industrial
Tool
& Die
(Schofield,
Wisconsin)
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|
