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Thread: Latest project complete

  1. 01-13-2004, 01:01 AM #1
    Evan
    Evan is offline Senior Member
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    Post Latest project complete

    I made myself a toy over Christmas, finished it this weekend.





    It is of course a steam engine. It is designed to run on extremely low pressure. All the rotating bearings are ball bearings. The piston is silicon bronze running in an aluminum cylinder. The valve system is balanced so that the valve does not work against air pressure. It runs either direction by moving the air hose from one nipple to the other. It is a very long stroke engine to maximize the use of low pressure. Stroke 1", bore 1/2". The connecting rod is very long to minimize side force on the piston thereby reducing friction.

    In the photo above it is running around 200 rpm on 0.6 psi. I measured the running air pressure from the aquarium pump with a highly accurate medical mercury manometer, accurate to 1 mm pressure over a range of zero to 300mm.

    This is the first engine I have built, I think it won't be the last.
    L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
    update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
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  2. 01-13-2004, 01:09 AM #2
    G.A. Ewen
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    Thats a dandy Evan, but I think I see some finger prints on it in the first photo .

    Really, it is a beauty! Is it your own design? I have never seen one like it.
    To invent, you need a good imagination - and a pile of junk. Thomas A. Edison
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  3. 01-13-2004, 01:11 AM #3
    Evan
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    It is my design but is loosely based on some other designs that use the bellcrank to transfer valve motion from the eccentric to the valve body. BTW, before anyone asks, there are no plans...
    L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
    update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
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  4. 01-13-2004, 02:22 AM #4
    Thrud
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    Nice.

    Needs some anodizing...
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  5. 01-13-2004, 02:44 AM #5
    Evan
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    Yeah Dave,

    When it warms up I will sand blast the base and anodize it. I haven't decided on what color yet.
    L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
    update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
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  6. 01-13-2004, 04:04 AM #6
    winchman
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    Very nice work.

    Which part was it that got scrapped? Or was that a different project?

    Roger
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  7. 01-13-2004, 07:42 AM #7
    spkrman15
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    Yeah i want to know which part got scrapped. Very nice. Don't Anodise it. It looks great the way it is.

    Spkrman15
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  8. 01-13-2004, 07:51 AM #8
    pgmrdan
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    Don't change a thing! It's beautiful just the way it is.

    Very nice!

    -Dan
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  9. 01-13-2004, 09:14 AM #9
    NAMPeters
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    Nice and shiny, I like it. First rev would be a shuttle valve for direction control, moving a tube is too mickey mouse for such a neat engine.

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    Neil Peters
    Neil Peters

    When on the hunt, a broken part is better than no part at all.
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  10. 01-13-2004, 09:22 AM #10
    Paul Gauthier
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    Very nice Evan.



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    Paul G.
    Paul G.
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