Recent content by larkinja

Also, in case this may be of use in your schematic. We are considering using a PLC to control the pump and the steering circuit, so there is a possibility that we could control this circuit with the PLC as well, once I understand how this circuit works. One of my buddies programs PLC's for a...

Sorry, I completely missed this post. Looks interesting. How would the controls for this work. Would it just be a switch that activates it. I'm not sure I understand how it would activate when needed. What type of valves would these be? Thanks again for this, and sorry I didn't...

Yes, a few of them. We ordered the motors from Applied Industrial Tech. I have also been working with Sunsource on some stuff.

Sounds good, thank you!

Great, I am excited to see it. The engine does have a governor on it, and we can flash the computer to set that to whatever we want. Also, we are going to drive the pump with a re-drive, so we can make any ratio we want. ie when the engine is at 4000rpm, the pump could see 2000rpm, or...

OK, sounds really good. Can't wait to see it!

The Haldex product seems to be the closest to the right ratings, but looks like their biggest D series max flow is 14gpm per section. To get the max speed we planned, we need more like 20gpm per section. The pressure might be a bit low. I'm not sure. It says maximum inlet pressure 3000psi...

Another question. With the rotary flow divider, can the output from the pump have a large tee in it going to 2 2port rotary flow dividers? Seems it might be easier to find 2 port rotary flow dividers that can handle 40gpm that 1 4 port that can handle 80gpm. Actually I am having tough time...

Drankin, I have a couple questions about the current schematic. One, the high speed circuit sounded like a great idea, but I'm wondering if it is necessary? The motors can only take 25gpm max, so diverting all the flow will just overspeed the motors anyway right? Can you think of a reason to...

So, by drives you mean actually use 2 hydraulic gear motors with the shafts coupled together? Interesting idea. Is still think the flow rate is going to be a problem though. Even with the flow divided into 2 equal streams, that is still sending almost 40gpm into a single motor, and most...

The biggest problem so far is the flow rate. The pump is capable of at least 75gpm, and the valve can't handle that much. Actually I am having trouble even finding a gear divider that can handle that flow. The thought at one time was to gang 2 smaller dividers together to separate the front...

OK, no problem, I appreciate everything you are doing for us!

Okay, you're right again. Okay, well I am familiar with using a steering valve, an automotive power steering pump and a double acting cyclinder for hydraulic steering. The thought crossed my mind that the larger the steering valves displacement is, the less number of turns it requires to move...

Wondering if you have time for an offshoot question? I think I am going to use an analog driver card to control the pump. I've been working with the card engineers to figure out the current ratings and such, its got the basics, adjustable ramping, separate adjustments for up and down...

Ok, just a thought.