Gas engine vs. electric motor regulator...

what, if any , is the difference between an electric motor and a gas engine , with regard to the regulator? I have a 60 gal tank , a really large "old school" compressor and a 7 1/2 hp gas engine I'd like to marry. I've seen gas powered compressors, that the rpm's run higher when the compressor is on and drop to idle when it cuts off. I assume there is a clutch involved as well. Is this set up discussed somewhere in detail?? thanks sanders

Comments for Gas engine vs. electric motor regulator...

Click here to add your own comments

Aug 11, 2014
by: Doug in

Yeah - you won't find them except at a compressor service place or internet

Aug 10, 2014
by: Anonymous

then the unloader would be operated and controlled by the pressure regulator, to throttle up or down accordingly. Will check around to see where to purchase such a unit...just have never seen one for sale in the compressor/air section of any store. Thanks sanders

Aug 05, 2014
engine control
by: Doug in

You could use a clutch for extra efficiency, but AFAIK, they usually just unload the output, as with an electric motor.

You can use either a solenoid or a small air cylinder to control the throttle.

Be careful not to run the pump too fast to prevent premature failure.

Good luck and have fun.

Aug 04, 2014
The regulator difference
by: Bill

The compressed air regulator is used to reduce the pressure available from the tank to the minimum operating pressure necessary for the air-using application.

In almost every case, the rule of thumb is to use the least amount of air pressure necessary to do the job... resulting in a less frequent cycling air compressor and less wear and tear - perhaps, on the air tool.

An air regulator should not be confused with a pressure switch which turns the electric air compressor motor on and off as the tank pressure cycles nor should it confused with the unloader - throttle control of a gasoline powered compressor.

Other contributors will have to help you with the throttle load / unload of a gasoline driven air compressor, as I don't have one and have never used one though they, as you note, "unload" when the pressure reaches cut out so that the motor continues to run slower, but doesn't produce more compressed air and rev back up until the tank pressure calls for it.


Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Compressed Air Regulator Questions.