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Thread: Carburetor Diaphragm Movement Detector and its system

  1. #11
    chy_farm's Avatar
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    Quote Originally Posted by chy_farm View Post
    Good morning Owen, thank you for your comment. It seems like it is, but I did no know this word LVDT though, lol.
    Chy
    Quote Originally Posted by owen moore View Post
    chy,
    What I was referring to was a linear variable differential transformer. Sorry for the confusion and the nomenclature. I like what you have done.
    Best Wishes
    Owen Moore
    Good evening Owen, many thanks. I looked for some informative site on this tool, and got it means. LVDT Seems it gives us geometry data of the linear movement of the core inside the coil housing, whereas this detector tells the axial movement of inductive material outside of this unit of coils when both of the material and the coils sit in the same axis. Thanks again,
    Chy

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    PJs (04-10-2018)

  3. #12
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    Quote Originally Posted by tonyfoale View Post
    -----
    You might be interested in some carb experiments that I did a while back to get a visualisation of the mixing. Here are a couple of videos;
    youtube.com/watch?v=XlA1AeAX8Bk
    youtube.com/watch?v=O0fwQTaUPrU
    Good evening Tony, these video are fun to see! Especially the first one is very impressive to me. Many thanks, appreciate your kindness and quest for science!
    Chy

  4. #13
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    Thanks chy_farm! We've added your Carburetor Diaphragm Monitoring System to our Carburetor category,
    as well as to your builder page: chy_farm's Homemade Tools. Your receipt:




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    Using this detector, I tried to see how the weight of metering plate means to the movement of it in operation. I thought some comparison could mean something about them.

    This is one of the original diaphragm with a perfect round metering plate on it. Some holes are cut out there. It seems that these holes help to decease its weight a little, but it also seems to me that opening holes is not the least thing to do for this part. Later I got to know how it concerns to the movement.
    Carburetor Diaphragm Movement Detector and its system-0.2t_with_standard_plates.jpg
    This weighs 0.73gs, thickness is 0.2mm.

    First I had and assumption that the weight of metering plate means more for higher spin speed, since they have to repeat ups and downs so many times in a second, lol. This thought of mine lead me to try out another homemade metering plate that weighs lighter than the original.
    Carburetor Diaphragm Movement Detector and its system-0.15t_with_mod_plates.jpg
    This weights 0.63gs, 0.10gs lighter than the original.

    This homemade one was made from a piece of alu plate. Thickness decreased to 0.15mm by mallet work, was 0.3mm originally. Why mallet work? Yes I wanted to give this plate some hardening cause it vibrates with some pressure.
    Carburetor Diaphragm Movement Detector and its system-aluminum_plate.jpg

    The weight of this plate itself was only 0.12gs.
    Carburetor Diaphragm Movement Detector and its system-aluminum_plate_weigh.jpg

    (to be continued...)

    Chy
    Last edited by chy_farm; 04-13-2018 at 09:03 AM.

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    PJs (04-14-2018)

  8. #15
    Jon
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    Congratulations chy_farm - your Carburetor Diaphragm Monitoring System is the Homemade Tool of the Week!

    This is a clever, complex, and original tool build, accompanied by a good bit of information and data. It will be interesting to see the follow-up posts to this build, as well as any related tools.

    Difficult week to win; we had a lot of highly-rated tools across a wide range of disciplines - machining, welding, woodworking, luthiery, and automotive.

    Some good picks:

    Index Drilling Setup by xynudu
    Quick Clamp by Bongodrummer
    Curved Routing Jig by starkw1
    Pneumatic Tool Organizer by Eloy Workshop
    TIG Wire Feeder by chy_farm
    Toe Jack by thehomeengineer
    Reamers by Christophe Mineau
    Bandsaw Blade Soldering Fixture by thehomeengineer
    Saw Bench Casters by somyunguy
    Slitting Saw Arbor by Canobi
    Cyclone Separator by chy_farm
    Mill Stop by thehomeengineer
    Tube and Cone Press by chy_farm
    Belt Sander by garage nut
    Machine Dogs by thehomeengineer
    Dummy Load by chy_farm
    Inverted Jack Mounting by Tuomas
    Flute Milling Fixture by Christophe Mineau
    Vacuum Desiccator by chy_farm
    Table Saw Repair by tonyfoale
    T Stake Holder by Steved53
    Welder Dolly by chy_farm


    chy_farm - we've added your tool entry to our All Homemade Tool of the Week winners post. And, you'll now notice the wrench-on-pedestal award in the awards showcase in your postbit, visible beneath your username:



    You'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.


    Congratulations and well done!

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    Thanks for the response, chy,
    While we are on the subject of diaphragm carburetors; do any of you fellows know of a source in the US where one could buy diaphragm material of various thickness's and compounds?

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    chy_farm's Avatar
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    Quote Originally Posted by Jon View Post
    Congratulations chy_farm - your Carburetor Diaphragm Monitoring System is the Homemade Tool of the Week!--------
    It is truly a great pleasure to me to be able to get this award. Thank you very mush for your likes!
    Chy

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  13. #18
    chy_farm's Avatar
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    Quote Originally Posted by owen moore View Post
    Thanks for the response, chy,
    While we are on the subject of diaphragm carburetors; do any of you fellows know of a source in the US where one could buy diaphragm material of various thickness's and compounds?
    Good evening Owen, very sorry to say that I do not know much about the original manufacturer of my membrane. I got this from a local distributor who said this one is a US made but did not tell me who.
    Regret that I can not be of any help to you on this. Hope you can find a better information.

    Chy


    p.s. Please let me informed of the information if you got to know some maker or distributors there. thanks in ahead.

  14. #19
    PJs
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    Congratulations Chy, Well Deserved! Look forward to the continuation of the project.

    PJ


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