That direct injected, spark ignited, non throttled intake, low compression engine is in thermodynamic terms a meld of the Otto and Diesel cycles. Closer to Otto, really, as the high compression of the diesel cycle has much to do with its efficiency.
I'd like to see the dyno lab reports, but doubt that stuff will leak out. Gut feel is BSFC is comparable to a regular optimax, maybe a touch better.
The big deal is they wanted an OB that burned diesel and jet fuel, they don't want gasoline on ships any more. Too many bad fires.
+1. On my first diesel car, and I like it too. Only prior experience,2 diesel rental cars.I would not like a diesel OB. But I do like my diesel car!!
I personally wouldn't want a diesel OB any more than I'd want a diesel car.
I personally wouldn't want a diesel OB any more than I'd want a diesel car.
I have often wondered why someone has not produced a diesel outboard. Might be nice to have 15 horse that you could take off the dink and use as a get home motor. They make small diesels now for quads, why not outboards?
I don't care for the idea of a converted gas engine. GM did that in the 80s and pretty much ruined the diesel car market.
Use your imagination.....all the advantages of having one, safe, available anywhere, fuel on board. Not to mention that with a simple plumbing job, connected to your diesel tank, you have a possible "get home" power source with (almost) an inexhaustible supply of fuel. How about a "diesel station" on your boat for feeding the dinghy? No, the advantages of a diesel OB are many.I personally wouldn't want a diesel OB any more than I'd want a diesel car.
The use of spark ignition reduces the loads enough so gas engine construction , and weights can be had.
Are you saying that the spark ignition allows them to reduce the compression and therefore also reduce weight via lighter construction?
The comment in the article about them converting a gasoline engine into a diesel engine brings back memories of the GM diesel fiasco when they attempted to do the same in the late 70's.