Engine driven hydraulic pump = no batteries

i work on forklift and they all have a hyd. pump thats constantly ran of the engine ot trans for the hyd. controls

i am running a full billet pump that has a built in pressure release at 1400 psi and max pressure of 3000 psi constant pressure  has 3.0 gallons per minute flow rate and a cylinder that has 1.120 inch id only uses 500 psi to lift 1600 pounds of dead weight with .50 id hard line of course soft line increases psi needed to lift the same weight the pump comes with or without under or over drive pulley for any kind of belt v or rigged i sell them polished aluminum with pulley and built in pressure valve for 400 dollars so if anyone is looking to do this let me know oh yeah and the pump is about as big around as a 12 ounce soda can and also about the same length so can easily mounted any where

My winter jeep has a plow setup with the pump on the engine thats always pumping, you need that.

Thanks for the responses! I'm new here and you all have welcomed me nicely. This is a great forum.Using accumulators to pressurize the cylinders instead of a single engine driven pump would give you variable lift speed at the turn of a knob. Anything from suuuuuuuper slow to competition hopper fast. All with no batts. I'm thinking of trying it on my project. Thanks again everyone.

check out HYDROSTATIC Pumps and Drives (GOOGLE IT) there are people running these set ups to actually drive vehicles using a lil honda type generator to power hydro set ups that actually replace the engine and transmission and have been known to get 100+ mpg (figuiring the amount of fuel used by the generator)

tacomaon24s. Your setup sounds pretty nice. I'd love to see how you did it. Does it perform well? The only thing I would be concerned with on any engine mounted hydraulic pump is power consumption from the engine. Most pumps have flow and pressure data as a function of input power. You should also investigate the RPMs needed to generate the flow and pressure you need/want.

someone should start posting some pics, i can't find anything about this ! sounds pretty cool though.

I thought about this awhile back but am not that familiar with hydros and just figured it had already been done. like mentioned above, just take a setup off of a gas/lp forklift. they work in a very similar way to how one of our suspensions would. hell the manual valves off of one would be cool too. variable speed suspension? hmm...

Edited: 10/9/2009 12:08:21 PM by MJAVY7

---------------------------------------------Originally posted by fknlowjeepsomeone should start posting some pics, i can't find anything about this ! sounds pretty cool though.---------------------------------------------This is a liitler off topic...On my last post there was a link to another thread, in there "tre5" posted something about aircraft hyros in layitlow.com. I went there and man there are I found some crazy set upts that I have never see in my life. I spent 10 year of my young adult life in Mexican town in Detroit Michigan there  I was spoon feed hydrolics for a good part of my life and NEVER EVER saw this crazy setups like the ones on that website (I guess I was hanging out with the middle class). Check them out it would be worth your time.  Here is one for the the ppl that care less and are too lazy to search... www.layitlow.com/forums/index.php?showtopic=425207 http" target="_blank" rel="nofollow">http://www.layitlow.com/forums/index.php?showtopic=425207 http://www.layitlow.com/forums/index.php?showtopic=425207

Mexican Town huh? I grew up in Ecorse MI. Small world. That's an OG setup. It does all the same moves a modern setup does but it uses aircraft parts to do it. Looks great and is probably bullet proof but there's nothing different about the way it works. Check out this link. There's some good animation on the 3rd page. http://auto.howstuffworks.com/hydraulic-hybrid.htm This uses hydraulic energy stored in accumulators to drive a vehicle using a hydrostatic drive train (similar to what BOOOGHAR mentioned). This concept uses regenerative braking in addition to an engine mounted pump to charge the accumulator. This same concept could be easily used to run a very versitle hydraulic suspension setup that could be adjusted to simply lift and cruise or smash the back bumper. A real sleeper.  The fork lift components that dragnblazer mentioned would work for a power take off (PTO) that could be used to charge the accumulator.