Toyota KD engine

From Wikipedia, the free encyclopedia

This article does not cite any references or sources. (May 2008)
Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed.

The Toyota KD engine series is a diesel engine, produced by Toyota, which appeared in the year 2000.

[edit] 1KD-FTV

First appeared in the 2000, the 1KD-FTV is one of the newest engines build byToyota. 1KD-FTV a 3.0L (2982cc) straight-4 common rail variable nozzle turbo (variable geometry turbocharger) coupled with a 32-bit ECU and Multi Pilot Injection System, diesel engine Turbo diesel engine with an Intercooler. It has 16 valves and a DOHC (double overhead camshaft). Bore is 96 mm and stroke is 103 mm. It powers 170 hp (125 kW) at 3400 rpm, and 35.9 kgf･m (352 N·m) of torque at 1800-3400 rpm. Redline of this engine is at 4200 RPM. Compression ratio is 17.9:1. This engine uses D-4D (Direct Injection 4 Stroke Common Rail Diesel Engine) electronic Common Rail (Common rail direct fuel injection ) technology, produces ultra high pressure, 135 mpa (1350 bar), which is about 8 times more than the pressure of the normal fuel injection system within the "common rail" that feeds all four cylinders (older diesel engines have a separate pipe leading from the pump to each cylinder). This combined with the 32-bit ECU which controls fuel quantity, valve-timing, and accurate pressure at different engine revolutions result in the most fuel economy and also in the full utilization of power, whether it is during taking off or during taking over, without having to drag the engine revolution to the maximum. Making the achievement with the fuel consumption 11% more effective compared to its predecessor 1KZ-TE engine thus 17% more powerful. Fuel consumption is also 12% more effective than the all new Toyota Hybrid engines. The Pilot Injection System helps smooth engine running like sitting in saloon cars. The noise level is only 49 decibels at the idle speed. The Pilot Injection System produces fuel injection in advance before the main injection starts working, reducing Ignition Lag Time and resulting in continuous and complete combustion. Noise from ignition is also reduced.

This engine was first used in Toyota Land Cruiser Prado and now used in the Toyota Fortuner, Hiace and Toyota Hilux.

[edit] 2KD-FTV

First appeared in August 2004, the 2KD-FTV is the 2nd generation of the KD engine with a smaller 2.5 L (2494 cc) straight-4 common rail variable nozzle turbo coupled with a 32-bit ECU and Multi Pilot Injection System, diesel engine. The displacement of this engine is based on the 2 L engine. Bore remains the same 92 mm but stroke is increased to 93.8 mm. Like 1KD-FTV, it has 16 valves and is a DOHC engine, comes with an intercooler as well (applies on some region). It powers 102 hp (75 kW) at 3400 rpm and 191.7 ft·lbf (260 N·m) of torque at 1600-3600 rpm without an intercooler, 120 hp (88 kW) at 3400 rpm and 239.85 ft·lbf (325 N·m) of torque at 1600-3600 rpm with an intercooler. Compression ratio is 18.5:1. Redline of this engine is 4400 RPM. This engine also uses D-4D Common Rail (Common rail direct fuel injection ) technology. The only technical data changes from the 1KD-FTV to the 2KD-FTV was the bore and the stroke.