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Diesels in the News

8141 messages,  Last post on Nov 25, 2009 at 6:51 AM

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What is this discussion about? Diesel


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#7232 of 8141
Re: ... Diesel Design Thoughts [roland3] by winter2
Nov 30, 2008 (9:53 am)
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Replying to: roland3 (Nov 30, 2008 3:21 am)

I get a magazine devoted to diesel and I find that there are Bosch CP3 pumps out there that will deliver 40,000 PSI (2666 Bar) reliably over the long term including the one on my Jeep Liberty CRD. In fact, V.M. Motori, the manufacturer of the engine in my Jeep has a version of my engine with piezo injection.
 
http://www.vmmotori.it/en/01/00/01/dettaglio.jsp?id=56
 
It uses the same Bosch CP3 pump at 1600 Bar but delivers 60 more Newton-Meters ( 44.25 lb-ft) of torque over the version I have.
#7233 of 8141
Re: ... Diesel Design Thoughts [roland3] by ruking1
Dec 01, 2008 (7:41 am)
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Replying to: roland3 (Nov 30, 2008 9:20 am)

I understand the new 2009 VW Jetta TDI uses one of the newest Bosch CR systems. By all anecdotal reports, there have been no issues or problems.
 
Naturally a lot of diesel types look to longer time/milegage frames. Since the current Honda diesels do not hit the US market, finding information is a tad on the arcane side from the normal information channels.
#7234 of 8141
Re: ... Diesel Design Thoughts [ruking1] by alltorque
Dec 01, 2008 (8:28 am)
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Replying to: ruking1 (Dec 01, 2008 7:41 am)

Does this help at all ?
 
Honda i-DTEC
#7235 of 8141
Re: ... Diesel Design Thoughts [alltorque] by ruking1
Dec 01, 2008 (8:42 am)
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Replying to: alltorque (Dec 01, 2008 8:28 am)

Indeed. However if I understand the article, the ENGINE passed the tests. Done deal! It really totally ignores the recent publicized "automatic transmission failure" issue bru ha ha.
 
My take is a combination of one respondents take:
 
"Diesels are expensive, especially four valve, overhead cam, high pressure, direct injection, turbo inter cooler, diesels with a closed loop microcomputer control, cat converter and particulate filter. I think what you are seeing here is the peak of the ICEs. It is becoming more costly to continue to invent complicated tweaking for the ICE than it is to improve the battery and electric drive lines for BEVs. Once BEVs can attain a 70 mph speed for a 350 mile range and be recharged in 10 to 20 minutes, there will be little need for the ICE except for heavy hauling range extensions. "
 
Actually hybrids and or electrical can cost far more, but IF the plug in electrical can have a range of say 300-500 miles (30 min recharge) a secondary or back up diesel engine would make a GREAT combination !!! You basically can run the diesel engine when you want/have to.
#7236 of 8141
ML 320 Bluetec by houdini1
Dec 01, 2008 (1:25 pm)
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About the only thing that Edmunds liked about this SUV was the improved mileage...and that was only 18/24.
 
They did not like the transmission at all. Very sluggish with a big lag. Steering wheel like a bus, no feedback, and very sloppy. Suspension too soft with huge body roll. Firmer setting on the air suspension just made it jiggly and did not improve body roll. Very disappointing.
#7237 of 8141
Re: ML 320 Bluetec [houdini1] by ruking1
Dec 01, 2008 (1:33 pm)
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Replying to: houdini1 (Dec 01, 2008 1:25 pm)

That was what a friend of mine said about her gasser MB ML320 and she is not car techie oriented !! Evidently the TDI didn't improve the platform at all. She would NOT get another! She likes the Acura MDX as long as the hubbie is driving, as it seems a tad too big to her. So far the only one to have done a good diesel/automatic transmission has been MB BUT on the E320/350 (4 door sedan)
#7238 of 8141
Re: ... Diesel Design Thoughts [ruking1] by roland3
Dec 02, 2008 (9:36 am)
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Replying to: ruking1 (Dec 01, 2008 8:42 am)

... Ruking, amazing, I was going to start a post with almost the same theory as the respondent. The heading would have been, "It's the Same as Nature". Content: whether it's five years or fifty, the Diesel will become obsolete. Maybe it will be economic forces or legislative encumbrance or a new species altogether, the engine will be like buffalo some day. Rudolf's spawn might run out of grazing fodder (crude oil) also.
#7239 of 8141
Re: ... Diesel Design Thoughts [roland3] by ruking1
Dec 02, 2008 (10:07 am)
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Replying to: roland3 (Dec 02, 2008 9:36 am)

Well I hope to live to see running the car on water. Be that as it may, an electrical/D2 alternative by ANY metric, meets the PRACTICAL definition of ALTERNATIVE FUEL !!!! ???????
 
But essentially I believe D2 (and the variants: bio diesel, etc.,) will be viable for at least the next generarion (30-40 years) . In the scheme of things, this time frame can be like almost FOREVER! Till then, D2 keeps the 20-40% fuel advantage (other things also) over RUG to PUG.
#7240 of 8141
Diesel Fuel in the news by moparbad
Dec 02, 2008 (4:32 pm)
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quote-
Most of the world relies on diesel rather than gasoline for transportation fuel and heating demand. According to the International Energy Agency (IEA) the world consumed just 0.75 gallons of gasoline for every gallon of diesel in 2005, and the refinery system was configured to produce the two fuels in roughly the same proportion (https://customers.reuters.com/d/graphic s/FL_CNSP1208.gif).
 
The U.S. petroleum economy is highly unusual in that it is tilted towards consumption and production of gasoline. The United States consumes almost two gallons of gasoline (1.97) for every gallon of diesel; the European Union consumes only 0.40 gallons and China consumes 0.48 gallons.
 
Until recently, that led to a mutually beneficial trade, with the United States exporting surplus diesel, while Europe and China exported surplus gasoline (https://customers.reuters.com/d/graphic s/REFINEPRDS1208.htm). -end
Bleak Outlook for US Refiners
#7241 of 8141
Re: Diesel Fuel in the news [moparbad] by ruking1
Dec 02, 2008 (5:06 pm)
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Replying to: moparbad (Dec 02, 2008 4:32 pm)

A lot of that scenario also makes NO practical sense. 1. we have been and will continue to artifically creating an over demand for RUG to PUG (98% of the passenger vehicle fleet uses RUG/PUG) 2. an under demand is created for D2. 3. we of course EXPORT D2 and at considerable taxpayer expense OVERSEAS !!!! ???? This is literal and utter insanity.
 
As per EIA.gov figures 46% (of a barrel of oil 42 gals) are RUG to PUG (19.3 gals) and 23.4% is D2 (9.83 gals). link title
 
So if you just let the car population be 23% diesel, you will STRUCTURALLY decrease RUG to PUG demand, ie import almost exponentially less barrels of oil.
 
Simultaneously we need to let engines that are DESIGNED to burn bio diesel that will use the waste products generated by on going domestic manufacturing processes. Indeed algae shows enormous promise in generating both bio diesel and food and who knows what else. Algae also eats C02 and a by product is OXYGEN !!!!!

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