|Gas Engine Propane Demand
Best described by one of Jerry's good friends:
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
The Following Parts Also
Tecumseh Needle Valve Assembly
Tecumseh Diaphragm Assembly
plans look the best I have seen." - H. Schultz, Industrial Tool
& Die (Schofield, Wisconsin)