Hydraulic pump selection help needed please
Hydraulic pump selection help needed please
(OP)
Strange that there are no clearly defined categories for hydraulic power component questions on Eng Tips...
I think I have a fairly good idea of what I need but I'm getting lost in searching through the online catalogs trying to find it. It seems that there are a lot of pumps that do most of what I want but so far I've been unable to find one that satisfies all my needs. Hopefully someone more into the hydraulic world can point me in the right direction. I'm looking for a variable displacement piston pump which meets the following criteria:
* SAE A or B mounting for close coupled mounting to 28 hp gasoline engine.
* 1-1.5 in^3/rev (16-25 cc/rev).
* ~600 - 3600 RPM
* 3000 psi continuous rating.
* No charge pump needed.
* Prefer if it will pump both directions.
* Prefer if all porting is on back.
* Any form of swash plate actuation OK, will be modified for stepper motor.
* Available individually (non-oem).
Thanks
Mark
I think I have a fairly good idea of what I need but I'm getting lost in searching through the online catalogs trying to find it. It seems that there are a lot of pumps that do most of what I want but so far I've been unable to find one that satisfies all my needs. Hopefully someone more into the hydraulic world can point me in the right direction. I'm looking for a variable displacement piston pump which meets the following criteria:
* SAE A or B mounting for close coupled mounting to 28 hp gasoline engine.
* 1-1.5 in^3/rev (16-25 cc/rev).
* ~600 - 3600 RPM
* 3000 psi continuous rating.
* No charge pump needed.
* Prefer if it will pump both directions.
* Prefer if all porting is on back.
* Any form of swash plate actuation OK, will be modified for stepper motor.
* Available individually (non-oem).
Thanks
Mark





RE: Hydraulic pump selection help needed please
Your requirements seem to be conflicting.
1.5 cu.in/rev @ 3600rpm is 23.3gpm. 23.3gpm @ 3000psi (and 100% efficiency) requires about 41HP. So your 28HP engine won't be adequate for part of your performance envelope.
Also, I don't know of any pump assembly, variable displacement or fixed displacement, that will readily (and efficiently)pump in both directions.
As for commercial, swash plate piston pumps try Bosch-Rexroth:
http://www
RE: Hydraulic pump selection help needed please
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Mark
RE: Hydraulic pump selection help needed please
Ed Danzer
www.danzcoinc.com
www.dehyds.com
RE: Hydraulic pump selection help needed please
Fluid Power Engineering. Cool. I didn't see that before. Sounds like where I should take my question. Thanks.