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High Speed Hydraulic Motor

High Speed Hydraulic Motor

High Speed Hydraulic Motor

(OP)
I am looking for a high speed Hydraulic motor that is capable of 100,000 RPM. Maximum size for the motor is 4"OD and 6"long. I can not locate a source for these type of motors. If anyone could help, I would be grateful.

RE: High Speed Hydraulic Motor

What is the application? What is your power requirement 100 000 RPM? Is there a pressure limitation?

dunewambo

RE: High Speed Hydraulic Motor

I cannot imagine any hydraulic motor that turns anywhere near this fast.  Have you considered a pneumatic turbine motor?  How about brushless DC motor?  Also, as the previous poster asked, what is the power requirement?

RE: High Speed Hydraulic Motor

You wouldn't happen to be trying to drive a turbocharger compressor using your power steering pump and a hydraulic motor would you?

RE: High Speed Hydraulic Motor

100,000 PRM for a hydraulic motor does seem rather fast. I've seen them as high as 20,000, so while I'm not saying that there is not a vendor out there that can help (I'd call Eaton Aerospace and Parker). How about mating a lower speed motor and a gearbox? I've had to do that just ot get 120 Hp at 2500 RPM. If anybody knows where I can find a  2500 RPM, 129 Hp motor that weights less then 50 lbs let me know!

Tim, TurboEngineer

RE: High Speed Hydraulic Motor

No vanes or pistons at that speed. Churning would likely give you substantial temperature rise. I'd look at impinging a fluid stream against a spur gear or similar for speed. Not much torque, but maybe enough for a centrifugal compressor.

RE: High Speed Hydraulic Motor

An air turbine would work.  Also there are Brushless DC or induction motors that can run those RPM's.  If that's an option I can suggest sources.

RE: High Speed Hydraulic Motor

I've seen pneumatic motors run up to 35,000 but nothing higher that i know about. These are in the neighborhood of 1-2 HP. Torque is low though.

RE: High Speed Hydraulic Motor

A company makes a hydraulic turbine for turbocharger drive assistance. You may be able to fine them through the SAE web site.

RE: High Speed Hydraulic Motor

I'm not too sure of commerical availability of some of this product, Baldor has been rather good with specification I've needed in the past.  I'll plug them.

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada

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