A Look At Hybrid CarsAre hybrid cars, the cars of the future? Only time will tell. I am sure most of you have by now heard about the new hybrid cars in the marketplace today. I'm also sure many of you are saying, "What the heck is a hybrid car anyway?" Well let us see if we as laymen people from the old school of gasoline automobiles can understand these new high tech automobiles. [Read more]
With soaring cost of gasoline its time for diesel engines
Hybrids might be the fad right now but have you considered the new diesel engines coming out of Europe? In the last few years, most European countries have adapted diesel because of the technological advances that made it more reliable and a good alternative for gas guzzling engines. Diesel engines can deliver extra power compared to any gas engines invented including hybrids which relies on the combination of gas engine and electric motor. Diesel engines are simple to operate and are known to produce higher torque and fuel efficiency which 30%-40 % higher than gas engines.
Hybrid might deliver more mileage but the developed pulling torque of diesel engine is unequal. This is attributed to high compression of diesel which is 3-4 times that of gasoline engines. Tip: In 2006, a German auto maker unveiled a 2 cylinder turbo diesel car that developed 20 hp with a fuel rating of 157 mpg. This is unheard of on any fuel rating produced by hybrid cars.
The car also can seat 4 passengers. In the first oil crisis of 1970s, a few diesel cars appeared in North America and it was a disaster. Those cars were noisy, very slow and emit lots of black smokes. The fuel injection was based on a single fuel pump driven by the front camshaft gear and hard to control.
This resulted in over fueling which has 2 devastating effect: black smoke and detonation since the engine cannot burn all the fuel. Furthermore, because the fuel injector timing is not based on specific load and rpm, it resulted in poor acceleration. A better fuel management must be found to resolve this problem. With advances in gasoline electronic fuel injection management, it was also adopted for diesel engine. One of them is the use of electronic common rail fuel distribution system. Using a solenoid for each cylinder coming from the common rail, fuel can be better managed since the engine computer can control the solenoid.
This made combustion complete and eliminated the excess fuel that was causing poor acceleration and gas emission. A new turbo charger technology was also added to get more exhaust air at lower rpm. With these 2 additions, the new diesel engines run quieter in various rpm loads.
Although diesel fuel has a higher energy per-liter content compared to the same liter of gasoline, it has 15% more greenhouse gas emissions. This can be blame on sulfur which is added to diesel fuel for lubrication purposes. Sulfur also cause the formation of particulate matter which is a miniature carbon like particles formed after combustion.
When breathe into our lungs, this particulates are hazardous to our health. To remedy this, a double air filtering system is added to the engine so the particles can be collected and recycled back to the combustion chamber. This eliminates pollution and made the engine run more efficient. Finally, since diesel engines are also known to produce Nitrogen oxides which cause acid rain, an exhaust gas recirculation (egr) system was also added. Overall, the performance of the new diesel powered cars is very encouraging. On a test conducted on VW TDI engine recently, it showed one of the best mileage ratings for engine performance.
Compared to hybrid engines, diesel engine is not complicated and cheaper to operate. This was made possible because of the innovations in electronic fuel injections which made it reduced emissions to help our environment. If you want to save money on gas bills and have a strong reliable engine, diesel engines might be the answer we are looking for.
Mr. Richard Trent is a licensed heavy duty mechanic ince 1980 and is regular contributor of automotive articles. He also owned a few websites designed to help drivers beat the outrageous auto repair costs. Save $200-$300 on your next car maintenance service by watching his video at: http://www.automotivetroubleshootingsecrets.com or...Click here and save $200-$300 on your next car maintenance service
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