92merc Posted March 1, 2014 Share Posted March 1, 2014 Run it on gasoline! This should screw with the diesel lovers out there. LOL! All joking aside, this article from Green Car Reports is interesting. http://www.greencarreports.com/news/1090617_gasoline-fueled-diesel-truck-engine-cuts-fuel-use-emissions 1 Quote Link to comment Share on other sites More sharing options...
papilgee4evaeva Posted March 2, 2014 Share Posted March 2, 2014 As I understand it, the term "diesel" refers primarily to the engine type and not the fuel, correct? If they can perfect this, they'd make an absolute killing. Quote Link to comment Share on other sites More sharing options...
akirby Posted March 2, 2014 Share Posted March 2, 2014 Diesel engines don't have spark plugs - they rely on high compression and heat to ignite the air/fuel mixture. That's why when you shut off a gas engine and it keeps running without spark it's called "dieseling". That's also why they have glow plugs to heat up the combustion chamber in cold weather. Quote Link to comment Share on other sites More sharing options...
fuzzymoomoo Posted March 2, 2014 Share Posted March 2, 2014 Diesel engines don't have spark plugs - they rely on high compression and heat to ignite the air/fuel mixture. That's why when you shut off a gas engine and it keeps running without spark it's called "dieseling". That's also why they have glow plugs to heat up the combustion chamber in cold weather. If I'm not mistaken, arent the glow plugs used in lieu of a traditional spark plug? I'm not 100% sure, I've never owned or worked on a diesel. If that's true that also means that small nitro engines for R/C cars/planes/watercraft are technically diesel engines as well right? Quote Link to comment Share on other sites More sharing options...
Mad Hatter Posted March 2, 2014 Share Posted March 2, 2014 Glow plugs are only used on cold starts. They don't fire continuously like spark plugs. One the diesel engine starts, it's like akirby said-compression ignition. Quote Link to comment Share on other sites More sharing options...
92merc Posted March 2, 2014 Author Share Posted March 2, 2014 I'm sure for patent reasons, the article/video is lacking on details. It doesn't say whether the engine is running solely on gasoline, or if there are two fuels being used. I thought I saw somewhere it said about two injectors. So I'm thinking the system runs different percent mix of fuels, depending on the situation. Quote Link to comment Share on other sites More sharing options...
SoonerLS Posted March 3, 2014 Share Posted March 3, 2014 I vaguely recall hearing something about compression ignition gasoline engines last year. Maybe in the Avon Lake thread? Quote Link to comment Share on other sites More sharing options...
blazerdude20 Posted March 3, 2014 Share Posted March 3, 2014 I vaguely recall hearing something about compression ignition gasoline engines last year. Maybe in the Avon Lake thread? Idk if that was a ford engine that was discussed but Hyundai is said to be developing one themselves. http://blog.caranddriver.com/hyundai-developing-gasoline-burning-compression-ignition-engine/ Quote Link to comment Share on other sites More sharing options...
jpd80 Posted March 3, 2014 Share Posted March 3, 2014 (edited) I think MB has been at this longer and their engine plans utilize a GDIT that can switch to compression Ignition under certain conditions. The problem with straight compression ignition is that it limits horse power and rev range to similar levels as a diesel.. Still, a gasoline engine that closely apes a diesel engine would have certain advantages, especially for trucks and Utes.. Edited March 3, 2014 by jpd80 Quote Link to comment Share on other sites More sharing options...
LSFan00 Posted March 3, 2014 Share Posted March 3, 2014 Multi fuel ICE's (including with natural gas) have long held quite a promise and have been evaluated in academic/industrial research settings for many decades. Modern common rail injection systems seem to have provided some renewed interest in it, though. Some natural gas options available today in various ICE applications use diesel engines and inject diesel as the catalyst. There are various interests in this, vs. gasoline-diesel uses, to minimize cost, or minimize emissions (NOX etc) but it really isn't anything new at all. Dual fuel applications from a consumer standpoint with retail light vehicles don't seem real likely, imho. IF it ever made a lot of sense it probably would happen in the heavier truck markets first, then to 3/4 tons 10-20 years later...then regular cars/trucks. As far as "driving people crazy" I'd just again note that I think Ford sells more diesel pickups than any other manufacturer. Quote Link to comment Share on other sites More sharing options...
lfeg Posted March 3, 2014 Share Posted March 3, 2014 Users prefer fueling a vehicle with a single fuel. Multiple fuels for a single vehicle is viewed as a headache, with opportunities for misfueling. In the US (and North America) there is a building desire for a low cost fuel and an engine with inherent low emissions - natural gas. The fueling infrastructure is building out, all that is needed are purpose designed engines, not converted diesels for class 6, 7, and 8. In some parts of the country fleets are having good experience with the Cummins/Wesport natural gas engines (lower cost fuel, lower maintenance costs, easier to hit emissions targets). Also, there is much research going on on HCCI with gasoline. Quote Link to comment Share on other sites More sharing options...
Harley Lover Posted March 4, 2014 Share Posted March 4, 2014 Is this in the same zip code as HCCI? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.