CRDI-brackets for Common Rail Diesel Injection. It is a type of diesel engine, was considered as the revolution in the fuel injection system and was invented by Fiat in 1995. Fiat calls it MultiJet, and the name continues to change according to the company, but the technology under the hood continues Being the same. Hundai and Kia call it CRDI.
Common Rail Direct Injection (CRDI) is a word that is going to be a part of your vocabulary. It has been around for a couple of years and refers to state of the art technology for diesel engines. So far the diesel engines were noisy, slow and most people thought it was infra-digging to drive a car with a diesel engine. It was good for taxi drivers, tractors and other commercial vehicles, but not for passenger vehicles. That is about to change with this invention and it may be that the golden age of diesel is being born more than a century after Rudolf Diesel gave the world the diesel engine of internal combustion.
CRDI is the most advanced diesel technology that combines fuel economy, so diesel was the preferred choice. Performance was the exclusive reserve of gasoline engines.
Previously, diesel fuel was injected into the cylinders via a pump and four different fuel lines. CRDI consists of injecting the fuel through a "lane", under pressure directly into the engine. This further improves efficiency and most importantly reduces vibration and "noise" which was a trademark of diesel engines.
The "lane" - the pipe that delivers the diesel - connects to the injectors and introduces the diesel in two jets. The extremely high pressure of 1,300 bar ensures that diesel is almost completely vaporized, easily mixed with air and burned completely. Electronic sensors make this possible. Complete combustion means that there is no unburned fuel and, consequently, there is no pollution by exhaust. CRDi engines are compatible with Euro III.
CRDI engines claim 30% fuel efficiency over previous engines. The Ford Fiesta with the Duratorque engine claims 24km per liter. Acceleration is better. With the Hyundai Viva and Verna CRDI engines, the pick-up of diesel engines is better than gasoline engines. Hyundai says: "It's fast, quiet and economical, while maintaining the characteristics of the diesel engine with greater traction power."
While driving the Hyundai Verna on a recent test drive, it was hard to believe that one was not behind the wheel of a gasoline-powered car. The noise, the vibration, the hardness (N.V.H.) was absent and wonder of wonders, the acceleration was better than the gasoline engines.
With a greater comfort of the cabin, the lack of N.V.H. And fuel efficiency, a CRDI engine car will be a boon to taxi drivers and fleet operators. Your winnings will definitely go up. However, this may not be applicable to the city-assistant office that has a home-to-office-and-back-routine and short-hop trips. In this case, a gasoline engine car or a combination of LPG and Wagon 'R' Duo gasoline can be more fuel efficient.
The immediate disadvantage of a CRDI engine is that it is more expensive. In the long term, spare parts and labor will be more expensive.
Credit for this invention goes to Fiat who did all the R & D needed. Today the invention is being used by most diesel engine manufacturers. Mahindra and Mahindra are receiving their Delphi technology. So the Tatas. Nearly all Hyundai diesel engines are CRDI; So it is the Toyota Inova and Skoda Octavia. Mercedes, of course, has refined the technology, but the Mercedes diesel engine is no longer the only car as a favorite of a taxi. Even companies are opting for this engine. The new Swift diesel engine boasts a super-quiet, low-maintenance dual-head cam (DOHC), 1.3-liter DDIS engine. It is turbo-charged with intercooler and comes as no surprise that it is an engine derived from Fiat.
The Hyundai luxury sedan, the Sonata, has also been introduced with a CRDI engine.