Author Topic: Fuel injection systems  (Read 55351 times)

Offline Vixen

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Re: Fuel injection systems
« Reply #255 on: November 17, 2019, 12:28:42 PM »
Hello Roger,

Thanks for the brief history and the drawings. It is now clear just how many goes you have had at making and improving each design of pump and injector. The Swiss have a fine reputation for precision watchmaking and that's clearly what's required for a working fuel injection system

I assume the .dwg is the same as the .pdf one. That would be fortunate, as I have an incompatible version of AutoCAD (very early) which cannot open the .dwg file. It's interesting to see all the information on very large sheet. That's the way i do it as well.

It's going to take time to study and try to assimilate your design, as most of the important detail is still in your head.

Thanks

Mike
It is the journey that matters, not the destination

Offline Roger B

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Re: Fuel injection systems
« Reply #256 on: November 17, 2019, 01:46:08 PM »
Mike,

The PDF is slightly trimmed. I have attached an ACAD 2002 version. I can go back to R12.
Best regards

Roger

Offline Vixen

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Re: Fuel injection systems
« Reply #257 on: November 17, 2019, 01:51:07 PM »
Hi Roger

R12 would be good for me

MIke
It is the journey that matters, not the destination

Offline Roger B

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Re: Fuel injection systems
« Reply #258 on: November 17, 2019, 02:01:08 PM »
R12 Version
Best regards

Roger

Offline Vixen

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Re: Fuel injection systems
« Reply #259 on: November 17, 2019, 02:36:25 PM »
Roger, Roger.   :ThumbsUp: :ThumbsUp:

Thats an even bigger sheet than the .pdf

Mike
It is the journey that matters, not the destination

Offline Roger B

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Re: Fuel injection systems
« Reply #260 on: November 17, 2019, 03:57:50 PM »
Having reassembled the test setup I tried once again. The initial trials were not very good with sideways squirts rather than atomisation.


As an experiment I tried lapping the seating to the needle using 1 micron diamond paste as before. This has it's risks as I can't keep the abrasive away from where the shank runs in the nozzle and properly cleaning the orifice will be difficult especially in the smaller sizes. The initial trial looked better with more atomisation and less side squirt  :)

Best regards

Roger