Harold Player

Mar 20, 2014

Hello Marcin.

I did indeed express interest in a DPV previously. I have recently acquired a new job as a hydraulics specialist, I will be tied up all year with the exception of 3 weeks, I may contact you//sign up further in the future if I am able to make the trip there.

The main reason I am sending this e-mail is because I would like to find out about the progress on the hydraulic motor.

You previously mentioned you wanted a shaft size of 1-7/8" and 32-64 cu inch. displacement? Are these still the specs you want? I visited your newly completed webpage just now and I noticed that you had an Eaton 101-1040 (22.6cu in/rev) pump. Is this size suitable for you? Do we want to have maybe a couple of hydraulic motor options?

My company just threw away a 101-1040 coincidentally and we get them all the time. I am taking apart, rebuilding and testing many motors and pumps so we can explore many options. I'm also getting familiar with Solidworks at the moment so I may be able to reverse engineer and test them out.

Look forward to potentially contributing some ideas and drawings,

Harold

Response

Yes, the specs are correct.

We have done no further work on the hydraulic motor. I think the best step would be to reverse engineer a 1 cubic inch hydraulic gear pump - that we can scale to a much larger size.

Initially, we can use it as a pump (high RPM). When scaled to 32 cu in, we would have 120 rpm - or a size that could be used for wheel motors.

The best steps would be to start thinking about detailed fab procedure, assuming that we get the gears off the shelf. Then we make our casing. What are your thoughts?

MJ