CDI

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CDI or Common-rail Direct Injection is a type of diesel technology. The injectors are fixed on a rail and inject diesel fuel in precise moments which provide benefits in power, torque, economy and emissions. The rail acts as a storage of diesel fuel under extremely high pressure until it's released through the electronic injectors as a mist and is burned efficiently in the combustion chamber.

Components

The CDI engine contains these components.

• A high pressure pump with pressure regulator and inlet metering valve
• A rail
• Injectors
• Electronic diesel Control Unit(ECU)

Applications

Here are the car brands that use the CDI technology.

• BMW: D-engines
• Fiat Group: JTD
• Ford Motor Company: TDCi
• General Motors Opel/Vauxhall: CDTI
• General Motors Daewoo/Chevrolet: VCDi
• Hyundai-Kia: CRDi
• Mercedes Benz: CDI
• PSA Peugeot Citroën Group: HDi
• Renault: dCi
• Toyota: D-4D

More Information

• Holden site-Common-rail Diesel Technology[1]
• What is HDi Fuel System and how does it work?[2]