Diesel Engine in a Swift

Picture this: A new swanky Maruti Swift, shining in the moonlight. Sounds good, aint it?



Well yeah. It has been designed well too. Swift's core contains a 4 cylinder 16 valve DOHC arrangement with a 75bhp performance. The new Maruti Swift VDi has a Common Rail Multi Injection fuel system to boast of. I dont know what this was. Wiki came to my rescue, now I know something. Let me give you gyan.


In older diesel engines, a distributor-type injection pump, regulated by the engine, supplies bursts of fuel to injectors which are simply nozzles through which the diesel is sprayed into the engine's combustion chamber.

In common rail systems like the engine in Swift, the distributor injection pump is eliminated. Instead an extremely high pressure pump stores a reservoir of fuel at high pressure – up to 2,000 bar (200 MPa, 29,000 psi)[1] – in a "common rail", basically a tube which in turn branches off to computer-controlled injector valves, each of which contains a precision-machined nozzle and a plunger driven by a solenoid, or even by piezo-electric actuators (now employed by Mercedes for example, in their high power output 3.0L V6 common rail diesel).

Most European automakers have common rail diesels in their model lineups, even for commercial vehicles. Some Japanese manufacturers, such as Toyota, Nissan and recently Honda, have also developed common rail diesel engines.

Different car makers refer to their common rail engines by different names, e.g. DaimlerChrysler's CDI, Ford Motor Company's TDCi (most of these engines are manufactured by PSA), Fiat Group's (Fiat, Alfa Romeo and Lancia) JTD, Renault's dCi, GM/Opel's CDTi (most of these engines are manufactured by Fiat, other by Isuzu), Hyundai's CRDi, Mitsubishi's DI-D, PSA Peugeot Citroën's HDi (Engines for commercial diesel vehicles are made by Ford Motor Company), Toyota's D-4D, and so on.

Maruti Swift calls it CRMI - Common Rail Multi Injection. Hola!

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