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Instead of having a distributor pump with a separate pipe to each injector, the common rail is just that. A single pipe (or rail) connected to all four injectors. The fuel is allowed through only when the ECU triggers the injector. These common rail systems run at extremely high pressures (in excess of 25,000psi) so please do not attempt to dismantle one unless you have the relevant experience. You might very well seriously injure or kill yourself!
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1) Put key in ignition 2) Turn key Good things come to those who wait :-)
What is the difference between a conventional diesel engine and common rail diesel engine.How does the common rail diesel engine work?
Common rail diesel basic description: A common rail diesel engine differs from a conventional diesel engine in several important respects. A conventional diesel engine… works via a mechanical injection system, which relies on the engine's diesel injection pump to deliver the required fuel pressure, at the correct time, to the diesel injector in order to allow the injector to operate. Each individual injector on a conventional diesel engine has its own pipe or "rail" connecting the injector to the mechanical pump, allowing the delivery of fuel to the injector. Common rail diesel injection systems work on a much different principle. In this system the mechanical controls are replaced by electronic controls to allow for more precise metering and timing of the fuel delivery into the engine, and therefore the injection pump is no longer solely responsible for the operation of the injection system. Also, the individual injector rails are replaced by 1 (or 2) "common rail" which operates under a constant high pressure. There is no injection pump associated with this system, yet a high pressure pump is still required to deliver the high pressure fuel to the common rail. The high pressure pump is capable of producing (depending on the system used) approximately 29000 psi of pressure into the common rail. At the correct time the electronic injector is operated and the fuel is injected into the engine allowing ignition to occur. The timing and fuel quantity is controlled by an advanced engine management system which gathers data on the engine conditions via a collection of sensors. All of these sensors measure different system parameters to calculate the correct fueling for the engine at any given moment.
A common rail diesel engine is similar to a conventional diesel engine, only difference being the fuel injection system(FIS).The common rail direct injection system uses e…lectronic circuits to control the amount of fuel that is injected in to the cylinder. Also the time of injection(TI), Start of injection (SOI), Injection quantity (Q), and the injection pressure (P) are all accurately controlled with ecu in this technology. A high pressure pump(HPP), driven from Engine shaft, is used to pump in high pressure fuel from the tank and deliver it to the common rail. A common rail is nothing but a hollow shaft to which the fuel is delivered and maintained at a very high pressure of about 2000 bar.during the firing sequence of that particular cylinder, the high pressure electronically operated injector will be opened and fuel with a pressure of about 2000 bar is injected in to the cylinder. This high pressure fuel cloud will be automised completely and leads to complete combustion of the fuel, thus avoiding emission.
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This is currently by far the most common design for diesel engines in Autos and over the road trucks in both Europe and North America
run what is recommended. but higher sulfur will not hurt it at all current diesel fuel is 50ppm
rail injection systems usually do not have many problems, assuming you get a new one and not one out of the junkyard. A disadvantage might be that, for whatever reason, …it would clog up, it is a !@#$% to take off. If you get a new rail, change your fuel filter FIRST, then turn the key on and off to represurize the line, then install the new one.
where a rail directly interjects
CRDi or Common Rail Direct injection for long is a state of the art technology and is basically a method of injecting fuel directly in the cylinder or combustion chamber inste…ad of injecting the fuel in inlet valve or port. ans by kishalay
First you need to understand what each of these systems is. "Normal" diesel. In this method, a mechanical fuel pump gear driven directly from the engine crankshaft, both pre…ssurises the fuel system and controls the firing order mechanically or electronically, depending on the age of the engine. Both work on the same principle. Common rail on the other hand, works by a single (smaller) pump, working at much higher pressures to maintain high fuel pressure within a single large fuel line (a common rail). Each fuel injector is fed via a separate fuel line from the common rail. The Injection timing is solenoid controlled via an electronic signal from the ECU. Common rail allows MUCH more accurate injection timings due to having constant high pressure maintained in the rail prior to injection, along with controlled pre-injections to allow for reduced diesel "knock". The pressures involved are also significantly higher, allowing for a much finer atomisation of the fuel. This finer spray means the fuel can burn much more efficiently, resulting in reduced soot emissions and increased power output per unit of fuel combusted.
The common rail diesel engine was first used by German invention with the fiat company using in marine engines say Borsik fiat
In Fuel Filters
The common rail systems made by Bosch and used on the Cummins engines in Dodge trucks and in the Mercedes/Dodge Sprinters are self bleeding. All you do is crank the engine and… it will purge the air on its own.
HHO is BS. An HHO generator produces a perfect stochiometric mixture of H2 andO2 gas. (If you read anywhere that their HHO system produces "H1"gas, run. Very fast. H1 exists f…or the half a femtosecond it takesa hydrogen atom to find and bond with another hydrogen atom.) Andit requires more energy to pry water apart than you'll ever get byburning it. That energy comes, of course, from the engine in yourtruck. Yes, I know..."the HHO system puts more air into thecylinder." Yeah, yeah, yeah...even if you were venting the hydrogeninto the air that oxygen won't do anything for you because dieselsrun extremely lean anyway. You can double the amount of dieselbeing pumped into the cylinder and still not use up all theair...we know that because one of the most popular engines madetoday has ratings from 400 to 565 hp and all they change toincrease the hp is the injector bodies. If you want more power from your diesel engine, first change themuffler. It will cost you between $1500 and $3000 to install an HHOsystem that won't actually do anything for you; for $300 you canput a very high-flow muffler on your truck that'll add 50 hp byreducing back pressure. If you still want more hp, you can reprogram the ECU. If you've got an old truck with a mechanical engine, after youchange the muffler you can add a propane injection system. Thisworks very well, and you can go two ways: you can inject propane toincrease hp with the same amount of diesel burned, or you can keepthe same hp and replace some of the diesel with propane - whichlets you operate less expensively because propane's cheaper thandiesel. Some guys are also running nitrous oxide, but you canusually get the same result (nitrous adds more O2 to the cylinder)by adjusting your turbo. There is one good application for HHO. Jewelers fuel their torcheswith it because they don't have to store flammable gases on thepremises.
In common rail direct injection (DICOR) engine used in multicylender & main function is to provided the fuel in equal amount of in all cylender & the pressure of the fuel is h…igh for atomised (Vaporized) the fuel & these atomised the fuel is reduces the knoking problem. Regarding this high pressure is use.
No, the common rail fuel system started on the 2003 model yearDodge.