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  1. M

    Combined dry sump and pressure delivery pump, UK

    Thank you. I also found QED motors but I think its Burton I'm after!
  2. M

    Combined dry sump and pressure delivery pump, UK

    Hi guys I saw on Google a pump like the usual Ford gerotor (eg old Cortina etc) type. But it had four orifices for scavenging oil (to tank) and also supplying oil to the filter. I can no longer find it and want to have another look. Anyone know who makes this? Thanx. (Might be wrong page here...
  3. M

    Towards a two-stroke turbodiesel aero engine

    I've put some stuff about supercharging on a blog at malcolmcochran.wordpress.com if anyones interested.:amuse:
  4. M

    Towards a two-stroke turbodiesel aero engine

    Re post 92. Doesn't help. Of course I know about other two stroke diesels. The first diesels were two-strokes. Of interest, maybe, what won WW1? Not the usual answer. It was Henry Ricardo's tank which simply made trench warfare out of date at a stroke. Powered by his two-stroke. Do you know the...
  5. M

    Towards a two-stroke turbodiesel aero engine

    Well, sincere thanks for that. I didn't know this for certain but our plan is exactly that. Wilksch, with whom I was involved, has some engines flying but they suffer from weight because of a high cylinder block. The Jumo engine was very efficient but very complex. It had two cranks, needing...
  6. M

    Towards a two-stroke turbodiesel aero engine

    Just re-capping. I took a Petter AC1 single cylinder engine base and designed a completely different head to operate the rig as a Two-stroke. Indeed it looked a bit like a VW Golf set-up, but it was designed entirely from first principles. The reason for the two-stroke idea is three-fold: 1)...
  7. M

    Diesel Fuel Filter

    Renault Clio diesel, 2002, fuel filter housing has four nozzles. Two have green spots, there's a red and a white. I think the fuel exits from the central white nozzle. It comesfrom the tank into the filter at either green one. Surplus fuel returns to the tank from the red one. The...
  8. M

    Towards a two-stroke turbodiesel aero engine

    Well, fair comment. But it is a recognised way of making a "big" compressor avoid getting stuffed when it can't provide forward flow. In a nutshell, I thought if a portion of the air is fed back to the sealed intake plenum (wait for clarification!), it would add to intake energy and get an extra...
  9. M

    Towards a two-stroke turbodiesel aero engine

    Thanks. Some diesel experts said I'd be lucky even to get it running. It's been as hard as I expected. Things that seemed impossible were relatively easy, things I assumed would work were not. I have had a journey with numerous very steep learning curves, ranging from elementary thermodynamics...
  10. M

    Towards a two-stroke turbodiesel aero engine

    I am working with a bypass of air to increase flow - hoping to get more pressure This is not helping as I 'd hoped. :blink:
  11. M

    Towards a two-stroke turbodiesel aero engine

    Well, thank you. Thermodynamically, it is a great mystery that with a centrifugal supercharger (which is in place) the air density (that I need) is proportional to air pressure, but air pressure is determined by air flow. Not the other way round. This is strange. You'd think you'd get pressure...
  12. M

    Towards a two-stroke turbodiesel aero engine

    The saga continues. But it doesn't look good in a real sense ; I mean I wanted this really to be up-scaleable, not a joke in a shed. yet 1) We began to test ignition. We have 5 tiny injection holes in the injector, arranged very precisely at 72 deg, pointing down at 20 deg. We aim them...
  13. M

    Two stroke diesel: Build a simple ECU ??? Do-able, or not?

    My note above was for Grizbear. And then I lost it and re-wrote it. (We're getting mixed up). Malc
  14. M

    Two stroke diesel: Build a simple ECU ??? Do-able, or not?

    Hi Wayne It's too much detail to swallow but: malcolmcochran.wordpress.com/2010/06/30/electronic-circuit-for-a-delphi-direct-fuel-injection-system/ Malc
  15. M

    Two stroke diesel: Build a simple ECU ??? Do-able, or not?

    Thanks, that's most helpful. You might know that the First World War (1914-18) was won, not by the usual stories, but because Henry Ricardo invented a steel tank and a two-stroke CI engine to power it (The Tank) which ended trench warfare instantly and allowed advances at last. Ricardo...
  16. M

    Two stroke diesel: Build a simple ECU ??? Do-able, or not?

    You are so helpful. FYI, the First World War (1914-1918) was won, not because of the usual stories, but because Henry Ricardo who was to predict everything that ever needed predicting about CI engines, invented The Tank. A steel tank with a Two Stroke CI engine. It ended trench warfare instantly...
  17. M

    Two stroke diesel: Build a simple ECU ??? Do-able, or not?

    The post was several years back. We built a very reliable electronic control for the Delphi pump. I've written it up (almost correctly) on Wordpress/malc9141. ECU: We found we needed 18+v and were giving about 20 amps, for about 2 msec to move the shuttle. Interestingly, we simply stuck a...
  18. M

    Setting goals and benchmarks

    Yes, I notice the same thing as I approach the speed of light. Malc :amazed:
  19. M

    Towards a two-stroke turbodiesel aero engine

    My engine does work OK so I can say I've built it from the ground up! I just want to get it burning a bit hotter, but it's just to dot is and cross ts. :embarrest:
  20. M

    Towards a two-stroke turbodiesel aero engine

    Re: Towards a two-stroke turbodiesel aero engine PATENT Yeah. Funnily enuff, the same day I found the Diamond data, I got a letter saying the Patent had been accepted. That's to use my valve layout plus ram filling to clean ouit the exhaust gas. Here's a story Not very funny like this but it...
  21. M

    Towards a two-stroke turbodiesel aero engine

    Re: Towards a two-stroke turbodiesel aero engine THE END Hi Guys Diamond Aircraft, Vienna, Austria have been working on a diesel engine ( I thought they might) and it will blow my efforts away. It's 175 bhp, and has a gearbox on the front (?epicyclic, I'd guess). They kept quiet till it was...
  22. M

    Towards a two-stroke turbodiesel aero engine

    Hi Guys, There's no need to reply to this. I'm just logging activity. On the little single cylinder two stroke, the cap on the cam follower wore down (because we hadn't hardened it - taking a risk. Soon learned) and jammed the valve open which of course hit the piston top. We made new...
  23. M

    Towards a two-stroke turbodiesel aero engine

    Hi Paul This might be OK. At present, I'm looking at a Jaguar rod/piston, similar sizes. The VW idea seems quite attractive, though. I'll get back if the Jag idea stalls. Malc mit thanx
  24. M

    Towards a two-stroke turbodiesel aero engine

    Just to clarify, which motor is this? Four cylinder, which car/series/engine? Cheese :) MC
  25. M

    What is the best looking Honda

    It's called a Brawn. PS Does it have KERS? Seriously. Do all F1 cars have KERS? (but I liked my old Prelude). Malc
  26. M

    Towards a two-stroke turbodiesel aero engine

    Mmmm. We machined the "pennys" for the cam follower but missed the hardener. He does batches and we missed this afternoon's run. The hardener operates 24 hours a day, all week, keeping the temperature right, so we should get them in soon. Meantime, we had some thoughts about the piston...
  27. M

    Towards a two-stroke turbodiesel aero engine

    Thanks for diagram. This could be quite useful. Malc
  28. M

    Towards a two-stroke turbodiesel aero engine

    A tale of two camshafts - or two tales of a camshaft. We built the camshafts from EN40, nitrided for hardness. The cam acts on a "penny" sat on the so-called cam-follower. The cam-follower is an inverted "bucket" which presses on the flat top of a little mushroom tappet. Its short stem...
  29. M

    Towards a two-stroke turbodiesel aero engine

    Wilksch. No probs. Know them well. This single cylinder engine is only to prove/disprove my cylinder head's superiority!!
  30. M

    Towards a two-stroke turbodiesel aero engine

    I think it'll be a FIAT/Alfa con-rod and a special piston. If we get that far. But the VW bits would be VERRA suitable. :blink:
  31. M

    Towards a two-stroke turbodiesel aero engine

    Thanks, Wayne. That's very useful. Will look into it. Malc
  32. M

    Towards a two-stroke turbodiesel aero engine

    To PGARNER, Thanks. A Bora, Eh? I could just do with a con rod for design of the about-to-be designed 2L four cylinder engine!! (You have to buy 6 at a timne, at > 600 quid). ;)
  33. M

    Towards a two-stroke turbodiesel aero engine

    I should add: The electronic circuit is now very impressive, its lights flash away faster & faster as the flywheel accelerates. At about 3000 rpm (more than I need), the bench starts to rock so we switch off. We still haven't run it under much load so don't yet know its power output. Why not...
  34. M

    Towards a two-stroke turbodiesel aero engine

    To :HDi fun; paxmanmerv; and anyone - Sorry, missed the last posts. The single cylinder experimental engine is very promising. I'm already planning the 4 cylinder version. But Question: what diesel car of SMALL capacity has a small turbo on it? I need a (scrap) turbocharger smaller than the...
  35. M

    Towards a two-stroke turbodiesel aero engine

    OK I'm using these Esteemed Pages as a sort of log. They don't reflect the daily grind or should I say milling and machining (and soldering, as I puzzle over the circuitry for the injectors). And... !! Winter is here and it ruddy cold !! Lockerbie - Ah those were the days. Blizzards and...
  36. M

    Towards a two-stroke turbodiesel aero engine

    It works! We can now start it up quite easily and it runs nicely. These are early days and we lack power despite putting in too much fuel and we exhaust too much soot. But it goes!!! I am no electronics wizz. But I try different capacitors to time the injection period. This evening I might...
  37. M

    Towards a two-stroke turbodiesel aero engine

    Yep,thanks. I think that's it. I'll use the existing Brain simply as a timing switch (because it's there) and then just have it run the 30 odd volts to the Injector. Thanks, Paul. It is PAUL, I think? The Injector is incredibly sophisticated. I thought I understood it but it wouldn't work...
  38. M

    Towards a two-stroke turbodiesel aero engine

    Help !! Anyone ! We are getting there. What a job. But the subtleties of the injector are amazing. The problem is that we need 36 - 50 odd volts to drive the current fast enough. (The solenoid resists magnetisation, as you know, so we can't reliably fire it with 12 volts. Twenty four volts...
  39. M

    Ultrasonics and robots

    Tape his sensors. I like it!! Malc :confused:

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