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Post by turbochris on Jun 12, 2013 11:38:26 GMT -5
some pumps simply are not designed to take pressure in the inlet. Look at it this way, they made a billion hydraulic pumps w 2 basic frames, 2 hole and 4 hole, tang drive. I would set up my pump drive to acccept a pump that there are billions of. then look at scrap forklifts, cheap Chinese farm equipment. Fuck the elegant and expensive shit. Acquired items technology! Easily sourced, inexpensively reconfigurable... the fastest path to answers on your research. www.northerntool.com/shop/tools/NTESearch?storeId=6970&ipp=24&Ntt=hydraulic%2Bpumplook at these pumps, 2 hole or 4 hole keyed shaft. |
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Post by turbochris on Jun 12, 2013 11:40:38 GMT -5
heh I could go into Ernies pawn shop and have enough parts for a mini APU cheap! Ernie likes me sometimes!
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Post by ernie wrenn on Jun 12, 2013 13:34:00 GMT -5
Did you get the pictures of the J-79 I sent to you?
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Post by ernie wrenn on Jun 12, 2013 17:02:10 GMT -5
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Jun 13, 2013 5:13:49 GMT -5
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Post by turbochris on Jun 13, 2013 11:50:45 GMT -5
yeah J79 holy shit.........
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wolfdragon
Senior Member
Joined: April 2011
Posts: 287
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Post by wolfdragon on Jun 16, 2013 14:15:25 GMT -5
going to need a bit of horsepower to make the full 3000PSI, good find...
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Jun 16, 2013 17:27:54 GMT -5
I think I'm missing something: where are the pics everyone's referring to?
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Jul 10, 2013 9:14:36 GMT -5
This is a repost from the pulse-jet forum, from "ac_fedde" "I just found two pumps, one with motor and one without. The one with motor is 11l/min, the other one 8l/min. You can easily decrease these numbers with a bypass valve. The motor is now set for 3-phase 380 volts. I need to now what capacitor I need to make it 1-phase 220 volts. Anybody? These pumps are usually used at pressure's like 150 to 200 bars, but don't have to. Also these numbers are easily decreased with a pressure/bypass valve."  |
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Post by Drastyk333 on Jul 10, 2013 19:51:53 GMT -5
You are going to need more than a capacitor to make your motor work.You are most likely going to need an inverter that changes 1 phase into 3 phase
the easiest and least expensive way to go,I think,and I may be sadly mistaken,is to locate a 220v 1 phase motor with that same frame.Just a thought
John
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wolfdragon
Senior Member
Joined: April 2011
Posts: 287
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Post by wolfdragon on Jul 12, 2013 23:17:20 GMT -5
Yeah... making a 3 phase motor run on one phase isn't pretty, but it is possible... That being said you will find it easier to get another motor of the correct frame type to bolt on the pump to.
If you are dying to know how, look up "3 phase rotary converter" and "3 phase converter" basically you take single phase L1 and L2 (which are 180 degrees out of phase, this double the voltage for L1 to L2 vs L1 or L2 to neutral/ground) and put that into the motor and use a capacitor from L1 to "L3" and L2 to "L3", you ten have pseudo 3 phase that you can take off from that motor to go into another motor... so you need to get say a 1/4 to 1/2 HP 3 phase motor for your converter and then that will let you spin the one you have now
See what I mean by not pretty?
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Post by racket on Jul 13, 2013 0:34:04 GMT -5
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Oct 9, 2013 9:10:20 GMT -5
Finally some progress! A friend dropped by last week and left a bunch of goodies, including: literally hundreds of fuel nozzles, 2 powerfull pumps, fuel hoze, a big LPG tank, gallons of fueloil and a freaking sheet roller! Most of it is for loan but it will allow me to all but finish the engine! All that is left now is some sort of staring procedure (air, remote controll etc) Here are some pics. I finished up the M500 with a viking shield endcap, because I totally meant to do that  Front view  LPG tank  Fuelpumps  Vikingshield endcap  Another view of the engine  Sliproll  Gallons of fueloil  |
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Post by Johansson on Oct 9, 2013 10:34:07 GMT -5
Hi Joost,
That is quite some friend you have! Keep the pace up so I can look forward to a successful test run while sitting at home pondering about my bearing issues. =)
Cheers!
/Anders
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Oct 9, 2013 11:55:02 GMT -5
Hey Anders, Bear in mind that this might take a while still, but I'll try to keep things rolling along and hope I won't run into any problems that will grind things to a halt  |
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