請教一下新一代柴油發動機的相關知識，謝謝。

狂野的水墨

沒有找到關於 第二代柴油發動機的知識普及貼，請教一下哪兒有相關知識；還想知道一下toyota和nissan在哪些年份和型號的車上使用了新一代的柴油發動機？謝謝。

狂野的水墨

轉一篇柴油引擎的科普帖子

http://www.maruboshi.com.tw/news_01.htm

爱国爱港

http://www.dogandlemon.com/articles/diesels

The latest generation of diesel engines, termed common-rail diesels, are the most efficient diesel engines ever made, and when fitted to a car offer good levels of power and acceleration comparable to petrol engines.

However, many turbocharged common-rail diesel engines work harder than any other diesels in history. No matter how solidly they are made, we do not believe that they will last as long as their less hard-working cousins of old.

France is the world centre for small diesel engines. Diesels account for most of the new cars sold in France and in Europe generally.

There is already plenty of evidence of problems with the new generation of European common rail diesel engines, even when relatively new.  However, there are far worse problems down the track, after the vehicles leave warranty. European diesel engines (like their petrol siblings) are designed to be used in one vehicle for a fixed period of time and then disposed of.  They are computer controlled and everything from the high tech fuel pumps to the exhaust system is designed to work together as one whole unit.  Without the computer and the sensors in the exhaust pipe, the diesel will not run properly.

The European carmakers know this of course – in five or ten years’ time when their diesel becomes uneconomic to fix or will no longer pass emissions checks, they’ll be waiting around to sell you a whole new vehicle. The rest of the car will probably be junk.

Peugeot diesels use a silicon carbide honeycomb filter that absorbs pollution, then every 500km or so the filter system oxidizes the absorbed pollutants by injecting a small amount of fuel and a rare-earth-derived additive called Eolys to superheat the exhaust and burn off the soot left behind by burning diesel.

Very clever no doubt, and we believe Peugeot’s claim that the system eliminates 95% of pollution – when new. However, given Peugeot’s woeful reputation for reliability even with existing technology, hands up everyone who thinks this system will still be working reliably and economically in ten years’ time? Thought not.

Compare this to the modern Japanese petrol engine: it’s worth remembering that the basic Toyota Corolla petrol engine is not all that different to the models that they were making twenty years ago; it’s just somewhat more complex and somewhat more efficient. It’s proven, durable technology that is cheap to buy, cheap to service, cheap to fix, and if the car is too old to make engine repair economic, you can get a good, cheap petrol engine from just about any wrecker.

What about Japanese diesel engines? The older, smaller diesel engines by Mazda & Toyota were fairly dreadful. Nissan has always been a market leader, until recently, when some new high tech diesels started giving grief at a young age. Ditto Isuzu.

New European diesels require a very clean type of diesel fuel, but this new diesel fuel often wrecks the diesel pump on older Japanese models.

Outside of Europe, sales of diesel vehicles were expected to fall, but the opposite happened as fuel prices rose.

We’d advise you to avoid diesels altogether unless your needs can only really be met by having a diesel engine. If you must have a diesel, buy new or with caution, perhaps great caution, and for God’s sake have it checked out by a diesel mechanic before you pay over any money