TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The main stage discharge fuel flows to the FMU(flow metering unit), which provides metered fuel through the fuel flow transmitter to the distribution valve and onward through the manifolds to the injectors in the combustion chamber.  1, record 1, English, - metered%20fuel

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Le carburant est alors refoulé par la pompe vers le dispositif de dosage de carburant (FMU), qui fournit, à travers le débitmètre, un flux de carburant dosé à la vanne de répartition, et de là, dans les rampes d'alimentation des injecteurs situés dans la chambre de combustion.  1, record 1, French, - carburant%20dos%C3%A9

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Fuel in the D4D is pressurised to an extremely high 135mpa within the "common rail" that feeds all four cylinders (older diesel engines have a separate pipe leading from the pump to each cylinder). The high pressure injection creates better fuel atomisation for complete burning and increased power output. And because there is less fuel wasted through inefficient combustion, the D4D delivers better fuel economy too.  3, record 2, English, - high%20pressure%20common%20rail

Record number: 2, Textual support number: 1 OBS

A common rail engine is designed to supply constant fuel pressure to electronically controlled injectors through a shared fuel reservoir. This means that the fuel supply is not dependent on the engine revs. A common rail system is built around four basic components : a high pressure pump with pressure regulator and inlet metering valve, a rail which contains a pressurised reserve of fuel, injectors which inject precise amounts of fuel into the combustion chamber as required and a Diesel Control Unit-the ’brain’ of the system, which precisely controls injector flow and timing as well as rail pressure while continuously monitoring the operating conditions of the engine.  4, record 2, English, - high%20pressure%20common%20rail

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Rampe d'alimentation commune, maintenue à très haute pression, qui permet une injection directe du carburant dans chaque cylindre du moteur.  1, record 2, French, - rampe%20commune%20%C3%A0%20haute%20pression

Record number: 2, Textual support number: 1 OBS

Le secret de la «rampe commune», c'est son tube interposé entre la pompe d'injection et les injecteurs. Alors que dans un système d'injection directe classique, la pression dépend du régime-moteur, cette rampe commune, d'un volume de quelques centimètres cubes, va jouer le rôle de réserve de pression. Ainsi, quel que soit le régime-moteur, le moteur dispose d'une pression pouvant atteindre 1500 bars.  3, record 2, French, - rampe%20commune%20%C3%A0%20haute%20pression

Record 2,  Textual support,  Spanish