ncassi22 wrote: ↑
Thu Dec 28, 2017 8:51 am
Having a Japanese reader would be nice, but i think it might just be illustrating the difference between an active an passive jet-producing pre-chamber. My hunch is Honda is doing a wall guided pre-chamber for 2018, with a piston nipple with grooves ala orange juicer
I'm not a native Japanese, nor fluent, in fact I'm really bad and anyway stopped learning years ago ! But I can read katakana (the simple angular script), because it's just a transliteration from English (usually). I also somewhat painfully looked up a few of the kanji (the complicated looking script). This won't add much insight because you'd really want the text below the diagram to be translated, and that would take me about a 100 years ... But, for what it's worth, the annotations on the diagram are just what you'd expect.
So, the black box to the right says "prechamber configuration", the boxes on the left say "2 injector type" and "1 injector type" (yeah, big surprise !). The text under the black box is a bit confusing to me, it's something along the lines of "make the ignition components richer (???), ignition quality improvement is made possible" (really not sure about this !). The labels for top-main diagram are injector, spark plug, exhaust port, jet <something>, intake port, for top-inset diagram are injector, spark plug, orifice, pre-chamber. Similar on diagrams below.
Yep, no insight from stating the obvious there. Err, over to someone who can read/write Japanese properly for the text ! (and the correct translation of text below the black box - that one is puzzling me)
Edit : ah, that text is probably about making the ignition parts richer, where parts refers to the combustion process, rather than physical engine parts (components).