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  1. cryovette

    LOOKING FOR ONLINE CALCULATION

    This has probably been posted a hundred times but I'm going to pose the question regardless. Does anyone know if there is an online calculator to figure the amount of volume moved within a certain inside diameter/length at a given psi in sec or min?...including a given viscosity and temp?
  2. cryovette

    LOOKING FOR LOCK/UNLOCK SWITCH

    Anyone know of some info I could look over regarding an electrical switch that would lock under a little stress but would need to be capable of holding a very heavy load (not an electrical load but pressurized/weight load)...it would need to release under the heavy load as well. The rod it...
  3. cryovette

    HAVE YOU EVER HEARD OF SOMEONE DOING THIS?

    Thanks for the info everyone! To answer your question, IsraelKK, the application is for a pressure boost from roughly 175psi to 500psi and a volume of about 240 cubic inches...roughly. So what happened with this IR VIP machine? Is it now defunct?
  4. cryovette

    HAVE YOU EVER HEARD OF SOMEONE DOING THIS?

    Has anyone ever heard of the placement of a valve into (through) a piston before?
  5. cryovette

    ELECTRIC LINEAR ACTUATOR...IS THERE SUCH A ONE

    Anyone know of any linear actuators out there that are capable of a 50lb - 100lb full load with a stroke of 3" - 10" and a travel speed of 33" per second or greater (with applied full load)? The catch is that it has to be 12vdc with as small of an amp requirement as possible. Thank you for any...
  6. cryovette

    THE HEAT FACTOR...

    Thanks automatic2, that helps me quite a bit. I assume there is no way to determine what kind of heat will be generated from the seals and flexation...thus only by trial and error. Thank you again for the help!
  7. cryovette

    THE HEAT FACTOR...

    Thanks for the great info, Adrian. At the moment, the actuator's volume is a rough design at 9.75in3...surface area of 3.25in2. There is no rotary pump in the system at all...so no ripple and no heat inducted. After the initial startup, there are no valves, etc. involved with the hydraulic...
  8. cryovette

    THE HEAT FACTOR...

    My concern for the heat strictly has to do with the seals and what the oil can tolerate. This may sound a bit out of the ordinary but the more heat that could be generated without destroying the seals and oil, the better. The one end of the cylinder is "charged" at system start up but is then...
  9. cryovette

    THE HEAT FACTOR...

    Thanks ISZ...I was hoping that the one end would act more along the lines of a shock. The compression of the fluid I wasn't too concerned with but like you stated I was wondering if the friction would be an issue...and it probably would be. Even if I had a way of cooling the trapped end, I...
  10. cryovette

    THE HEAT FACTOR...

    I have a design that would solve a hindering problem if I could simply charge one end of an actuator with about 200 psi of oil and not tie it into a circulating system. My question is would it heat up too much in doing this? The other end of the actuator is going to fluctuate from about 200...
  11. cryovette

    CONTROLING PRESSURE BETWEEN TANKS

    Anyone have any knowledge about transfering a pressurized cryogen gas between two tanks...one insulated and the other is not (both are equal in volume). Both tanks must maintain a pressure through the transfer, which tanks are side by side and an insulated line connecting the two is less than a...
  12. cryovette

    ROTOR END RINGS

    Thanks for the reply, electricpete. Here is the direct quote that I read...the first time around I must have read slip rings and was thinking end rings. "Electrolytic action can occur at slip ring surfaces producing formation of verdigris. Verdigris is a greenish coating that forms on...
  13. cryovette

    ROTOR END RINGS

    Thank you dpc and rovineye. So if I have it right, the polarity alternates (besides the synchorous motor/wound motor)in the end rings as it does in the fields of the rotor so verdigris shouldn't be an issue in this machine.
  14. cryovette

    ROTOR END RINGS

    Sorry...AC Induction...thanks for pointing that out,dpc.
  15. cryovette

    ROTOR END RINGS

    Anyone recall if the rotor end rings has one that is constantly positive and the other is constantly negative?
  16. cryovette

    HTS COILS

    Anyone have any experience with Bi-2223/Ag tape coils? I'm new to the whole HTS tape process. Flexibilty sounds like a big issue as the tape seems to be a little on the fragile side. Racetrack coils seem to be for larger applications and seem to be quite a process with layering and epoxy...

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