Recent content by The Ignoble Troll

No, valve damage starts at a bit over 53°C and happens exponentially as tempurature increases. For a pump that can build both pressure and required flow, you will need a high end pump. Or maybe throw together a plunger style pump and then you have no pistons to worry about.

Forgive me but all this talk about HP pumps, Everyone says "plunger pump". Is the discussion actually about plunger pumps or is everyone building piston pumps?

Those came out fantastic

I know at some point that you get nozzzle flop potential with a divergent nozzle but I couldn't find that info in my brief search.

I'm not sure how long the throat of a de laval can be but there is room in venturi's for stretch... so depending on your geometry you might have some pressure/velocity changes that are de laval like. Just wondering if the geometry of an air knife orifice might help. On the surface they would...

Depends on the nozzle diameters that inject into the hole? Maybe? Are you familiar with air knives?

I know those post was way back but I thought I would add, diesel is a hydraulic fluid which means it has 5 functions Sealing Cooling Flushing Lubricating And force transmission. In a diesel you add ignition. But in a pump/injector you see the fluid doing all 5 things before it burns.

Iirc the Mazda with the 14:1 is gasoline not diesel, and uses innovativing timing/injection. Part of the SKYactive family I think. I could be mistaken.

I had never heard of Brons engines, thank you for sharing. I found a little more info http://www.bronsmotor.com/brons3.htm

I'm following all this diesel talk with great fascination... but could they stay in English? I lose this threads when Spanish pops up.

Buy a bigger drill? Can you set up a movable shim on your exaust valve to be a decompression valve to let you spool it up freely?

Just curious, after seeing your air pump build, why not repeat your success and do a water pump build? If you can do such a great job on a swashplate compressor, then a swash plate, or easier/better, triplex pump should be a breeze. A triplex with ball bearing shaft supports, an external...

Buy a bigger drill? But seriously: Can you set up a movable shim on your exaust valve to be a decompression set up. Then once the flywheel has some speed you could drop the valve?

That's more then possible.

Thanks. I worked up to copper alloys and then got totally distracted with ceramic slip casting crucibles and the next thing I knew I was obsessed with growing sapphire and rubies 😟 totally forgot metal.