You are right, 27 amps @480 volt = 20 hp. note I said 480 volt not 440 volt over the 15 to 20 years the voltage has gone from 440 to 460 to 480 I have recorded voltage in the feild as high as 496 volt in Florida US. Its to bad the bitzer comp didnt come with head unloaders. If you are going to use the diesel There is a valve called all-in-one valve for comps runing continuously with out head unloaders it vents the discharge to atmosphere when desired pressure is met. have fun with this project
@BOBKB3NZX bearings are fine, their a plane shell type like a cam shaft bearing. the high pressure oil feed keeps it safe with the minimal belt tension i had
That's an awesome sounding V4 but i prefer their sound when they are igniting fuel in the cylinders,lol.
truebassB 2 weeks ago
Bitzer - russian compressors!!!
chapkovichdima 3 months ago
Uh oh- reverse? Don't forget about the oil pump... :)
realvanman1 6 months ago
i laughed so hard when the belt flew off.
bait28 6 months ago
Run that from a car engine that u got lying around
Hunterc1525 1 year ago
Just wanted to mention that over 50/60Hz (depending upon your location) the motor HP starts to drop.
bcordasco 1 year ago
@bcordasco depends on the motor design.
bait28 5 months ago
You are right, 27 amps @480 volt = 20 hp. note I said 480 volt not 440 volt over the 15 to 20 years the voltage has gone from 440 to 460 to 480 I have recorded voltage in the feild as high as 496 volt in Florida US. Its to bad the bitzer comp didnt come with head unloaders. If you are going to use the diesel There is a valve called all-in-one valve for comps runing continuously with out head unloaders it vents the discharge to atmosphere when desired pressure is met. have fun with this project
rotarycomptech 1 year ago
2:28 LOL
cheetawolf 1 year ago
cool vid
atljunkbrent 1 year ago
the vfd works good for testing a5 hp air comp puts out about 18 acfm @125 psig you got a hell of a lot more cfm than that
rotarycomptech 1 year ago
@rotarycomptech I'm not sure how much CFM I will end up with in the end but as you said its pretty impressive as it is.
Aussie50 1 year ago
5 horsepower maybe? lol
naterade21 1 year ago
Now I know what to do with my 3 phase, 4 cylinder, semi-hermetic compressor when it wears out. Cool!
Garcansdad 1 year ago
What kind of air pressures were you seeing once you started to close up the king valve and load the motor down?
g60scuzz 1 year ago
uh-oh i heard bearings going crunch crunch! get that end pate machined!
BOBKB3NZX 1 year ago
@BOBKB3NZX bearings are fine, their a plane shell type like a cam shaft bearing. the high pressure oil feed keeps it safe with the minimal belt tension i had
Aussie50 1 year ago
@Aussie50 good to hear, have any ideas for when the end plate will get machined
BOBKB3NZX 1 year ago
pretty kewl balloon blower upper!
umajunkcollector 1 year ago
mad. thats cool. all it need is a good size flywheel.
V8Jagnut 1 year ago
that will make an wicked static show piece regardless
Jaytheozzi 1 year ago
@Jaytheozzi yeah the thing has badass written all over it, I am struggling to find a place to set it up tho lol
Aussie50 1 year ago
nice!
good to see it in progress!
animebsd 1 year ago
I wonder if a VFD would run a Fisher & Paykel Smart Drive motor, If it can provide the right frequency & Voltage, I'm Curious of that
HDXFH 1 year ago
@HDXFH nope, they take pulses of ac current, not a constant ac waveform, not unlike a brushless dc motor, iirc
tech4pros 1 year ago
@tech4pros Ohh, that'd seem right, they are basically a stepping motor
HDXFH 1 year ago
Nice! VFDs are awesome.
Metalcastr 1 year ago