HydraMaster CDSxDrive Overview from the Experience

Discussion in 'the CleAn Room' started by Mikey P, Sep 13, 2016.

By Mikey P on Sep 13, 2016 at 1:16 AM
  1. Mikey P
    Mikey P

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Comments

Discussion in 'the CleAn Room' started by Mikey P, Sep 13, 2016.

    1. SamIam
      SamIam

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      2000 rpm's over the 1500 for a traditional cds 1400 for a pro1200.

      What's butlers rpm's?
    2. dgardner
      dgardner

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      Sam,

      Keep in mind that you have to think a little differently than with traditional cds-type machines. The quoted speed is only for the van's engine and is constant. The blower can turn at any speed - set by the electric motor controller (four different preset speeds). As you increase the blower speed the van stays at 2000 but the generator loads the engine down more, increasing fuel consumption, and vice-versa as you lower the blower speed.
    3. Matt Wood
      Matt Wood

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      That electric motor must be a beast to be able to spin that blower and hold a load on it. That's an awesome design

      How many hours are on the beta units?
    4. Mark Saiger
      Mark Saiger

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      1750 RPM on high
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    5. Chris A
      Chris A

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      I'm interested in the fuel usage of the v6 at 2000rpms vs the 6.0 at 1500
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    6. Bob Pruitt
      Bob Pruitt

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      Not as good as the first Mikey and Saiger video. I now know a little more about the new technology available for the Transit Van. If there is a belt down in there on that generator then it will be something someone will have to change occasionally. I believe the belts on the machine are very easy to change but the belt on the generator could be difficult, maybe from below it isn't so lost in there..so I don't know. This is going to be interesting to watch.
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    7. dgardner
      dgardner

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      Bob, not sure but from what was showed I believe the generator runs off the same serpentine belt that drives the rest of the engine accessories.
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    8. dgardner
      dgardner

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      Chris, not a direct comparison. The new machine drives the blower at different speeds depending on the speed switch on the front of the machine, while the engine always turns at 2000 rpm. the fuel consumption will be very different depending on the blower speed setting.
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    9. dgardner
      dgardner

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      Definitely! They mentioned in the video that the generator produces 18kw (18000 watts). The basic conversion is 746 watts per hp, so 18000/746 is roughly 24hp, a pretty hefty electric motor.
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    10. SamIam
      SamIam

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      I was only referring to the engine rpm, I'm sure they spin the pump and blower higher.

      I'm also interested in how much fuel savings between 1500 and 2000 rpm's

      But the ford gets better gas milage then the Chevy so even running higher rpm's it might use close to the same fuel.

      I doubt hydramaster would make a gas guzzler.
    11. dgardner
      dgardner

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      Sam, imagine sitting in your car with the shifter in park. hold your foot on the gas and rev it up to 1500. Now rev it up to 2000. The fuel consumption will be nearly identical because there isn't any load on the engine, it's spinning freely. The fuel consumption changes when you load the engine down. With the x-Drive the engine is loaded electronically, not by changing engine speed.

      Imagine going downhill in your car. How much throttle is needed to maintain 2000 rpm? Little if any. If your car has a mileage calculator it will say your mileage is insanely high, like 90mpg. Now drive up a steep hill and maintain 2000. You will be near full throttle, and your mileage thingy will say 9 or 10mpg, same rpm. It's not the rpm that determines fuel consumption, it's the load.
    12. SamIam
      SamIam

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      I would think accelerating the gas would use gas.
    13. dgardner
      dgardner

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      The only real reason that the x-Drive spins the engine at 2000 rpm is the generator needs a minimum speed to attain full output, same as any alternator.
    14. dgardner
      dgardner

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      Well, sure, to a tiny extent. No engine spins completely freely, there is internal friction and accessories to drive (like the water pump, oil pump, alternator), but that's focusing on pennies while ignoring the dollars.

      Remember that the x-Drive's conversion to and from electricity wastes several percent of the available power, even that loss is more than the little bit of change you would see revving the engine up to 2000.
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    15. Cleanworks
      Cleanworks

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      I have to say that I was impressed by the x-drive. I have always had a fondness for Hydramaster, having worked with them and owning one. They have always been reliable for me. The only thing is, I think you would want a hydramaster service department nearby as I don't think you want to wrench on this yourself. Blower and pump maintenance will be the same but you want a trained tech to look over everything else. Performance was great.
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    16. dgardner
      dgardner

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      Don't worry, Les will soon re-engineer it to tear out the electronics and simplify things greatly.... :eekk:
    17. Nampa Carpet Cleaning
      Nampa Carpet Cleaning

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      18 Kilowatts is around 25 hp. Oops didn't see Dan G already posted the numbers. Looks like a cool machine.
      Last edited: Sep 13, 2016
    18. dgardner
      dgardner

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      Get outta town..... Really? :biggrin:
    19. Nampa Carpet Cleaning
      Nampa Carpet Cleaning

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      I didn't see you already posted it, funny
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