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The fuel is sprayed with the help of a nozzle that is opened and closed with a solenoid-operated needle valve. [5] Third-generation common-rail diesels use piezoelectric injectors for increased precision, with fuel pressures up to 300 MPa or 44,000 psi. [6] The types of common-rail systems include air-guided injection [7] and spray-guided ...
The 3.0-litre design, known as the Gen III, superseded the 2.7-litre, and uses turbochargers on a series-sequential system and has an uprated common rail injection system incorporating fuel injectors with piezo crystals fitted nearer to the tip to reduce engine noise and a metering mode to reduce oversupplying fuel, decreasing fuel consumption ...
multi-point electronic indirect fuel injection with three intake manifold-sited fuel injectors DIN-rated motive power & torque outputs ... 81.7 (111.1) 18.5: 14: 3.2 ...
The first 7.3 L engines were available as an option for International S-series trucks & school buses. For 1988, it became the sole available IDI engine and was now offered in Ford trucks. For 1993, Ford made available a turbocharged variant of the 7.3 L featuring an internally wastegated AR.82 Garrett T3 series turbo.
Commonly called 'Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi). The volume of air taken in by the engine is measured to determine the amount of fuel to inject.
Certain multi-point injection systems also use tubes with poppet valves fed by a central injector instead of individual injectors. Typically though, a multi-point injected engine has one fuel injector per cylinder, an electric fuel pump, a fuel distributor, an airflow sensor, [5] and, in modern engines, an engine control unit. [6]
This page was last edited on 7 August 2005, at 09:25 (UTC).; Text is available under the
The 14CUX was the final iteration of the system, and featured upgraded injectors and (for some markets) an external diagnostic display. It also introduced the use of a "tune resistor", which is an external resistor that plugs into the harness and is sensed by the ECU to select one of five different sets of fueling data.