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  1. Flamefront

    Diesel Wankels?

    With the advent of electronic controls on Diesel injectors, is anyone working on multiple injections into a Wankel type engine to "chase" the rotor around its path, coming closer to a constant pressure expansion cycle? Seems like a possibility is opening up here. The kludge way of doing it would...
  2. Flamefront

    Who Invented the Projected Nose Spark Plug?

    Guys I'm involved in a patent study project and am looking for the first patent on the projected nose spark plug, which from my memory, was done by Champion in the late 60's. Anyone out there know the history of these? Thanks for any input - Flamefront
  3. Flamefront

    Pipe flow assurance & deposits inside pipes

    Gentlemen I'm new to the industry and working on a petroleum process system where I've been asked to upgrade the alloy of some 4" ID pipes to prevent "carbon fiber" growth, which occurs in the section seeing over 500ºC. How big of an issue is this in process plants? How often are plants shut...
  4. Flamefront

    Refinery Process Pipe Carbon Deposits - Restrictions to Flow

    Gentlemen I'm new to the industry and working on a petroleum process system where I've been asked to upgrade the alloy of some 4" ID pipes to prevent "carbon fiber" growth, which occurs in the section seeing over 500C. The carbon fibers grow at Fe sites and end up restricting the flow through...
  5. Flamefront

    Chrome coating for engine cylinder

    I need to find a supplier who can plate a one-off engine cylinder for a prototype. The cylinder is aluminum (319) and I need a porous chrome plating on it to survive the piston ring running against it. An alternative is Nikaseal (sp), so any leads to a vendor for that would be helpful as well...
  6. Flamefront

    Acoustical Scanning of Airframes, etc

    Gentlemen, I'm reviewing a patent for viability - is uses acoustic waves to detect faults in a structure such as an airplane wing. The invention uses a transducer to excite a composite structure and looks at the echo signature for anomalies. This sounds like an old idea. Hasn't acoustic...
  7. Flamefront

    Max Pressure for Axial Vane Pump

    A general question: What is the maximum pressure that an axial vane pump can generate for air? I know these are very good at high pressure for incompressible fluids, but for air or gases, can they get up to 10 bar? A related question: Which vane pumps use seals on the vanes themselves...
  8. Flamefront

    Nano-scale wire insulation useful?

    Guys In considering transformer/solenoid/electromagnet coil packing density, would it not be useful to have the thinnest possible insulation on the wire as possible (to confirm the obvious)? At some point, the max voltage that can be carried will be limited by the thinness of the...
  9. Flamefront

    Razor Blade Coatings - What is used?

    I read in an older thread about razor blades being coated with DLC coatings to assist the initial break-in. Does anyone know if common razor blades (for face shaving, etc., not for paint scraping) are coated with this or other coatings?
  10. Flamefront

    Medical Waste - How is it handled?

    I'm doing some due diligence on a medical waste incinerator business plan. I have been told that disposing of medical waste costs as much as $350 per ton, which certainly would add up. I have also been told that most hospitals have incinerator permits to burn off most of their non-sharp waste...
  11. Flamefront

    Catalytic Combustion Chamber Coatings

    Has anyone had experience with coating the interior surfaces of a IC engine's combustion chamber with a catalytic material to promote "end gas" combustion? I know that piston coatings for friction reduction and wear have been used for decades, with some success. I have seen some references to...

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