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The first engine to bear the Power Stroke name, the 7.3 L Power Stroke V8 is the Ford version of the Navistar T444E turbo-diesel V8. Introduced in 1994 as the replacement for the 7.3 L IDI V8, the Power Stroke/T444E is a completely new design, with only its bore and stroke dimensions common with its predecessor (resulting in its identical 444 ...
In direct-injection engines (especially modern engines using high-pressure common rail fuel systems), keeping fuel filters in good condition is more critical as debris can damage the pumps and injectors when waste vegetable oil or waste engine oil are used.
This led directly to the production of the 6.9-liter IDI diesel. The engine is developed as a low cost, light weight diesel that fit where a V8 gas engine would, to try to convert their gas engine customers to diesel and to sell to Ford for use in F-Series light duty trucks and E-Series/Econoline vans.
The Navistar T444E is a diesel V8 engine manufactured by Navistar International Corporation. In its use in Ford Motor Company trucks, vans, and school buses, it is the first of the Power Stroke family of diesel engines. The T444E was manufactured from 1994 to 2003, replacing the 7.3L IDI V8 designed by International
Gasoline does not provide the same level of lubrication for the injector components as diesel, which sometimes becomes a limiting factor in the injection pressures used by GDI engines. The injection pressure of a GDI engine is typically limited to approximately 20 MPa (2.9 ksi), to prevent excessive wear on the injectors. [36]
Common rail fuel system on a Volvo truck engine. In 1916 Vickers pioneered the use of mechanical common rail systems in G-class submarine engines. For every 90° of rotation, four plunger pumps allowed a constant injection pressure of 3,000 pounds per square inch (210 bar; 21 MPa), with fuel delivery to individual cylinders being shut off by valves in the injector lines. [1]
2011–present Scorpion Diesel V8—"Power Stroke" OHV 6.7 L 32-valve DI turbo diesel (F-series only) 2020–present Godzilla V8 — Pushrod V8 7.3 L (445 cu in), gasoline, naturally aspirated, port fuel injected, variable timing, 16valve, 10.5:1 compression made for F-series Super Duty models.
A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and cooled by the fuel itself.
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