Toyota KD engine
| Toyota KD engine | |
|---|---|
 |
|
| Overview | |
| Manufacturer | Toyota Motor Corporation |
| Production | 2000- |
| Combustion chamber | |
| Configuration | Straight-4 4-cylinder |
| Chronology | |
| Predecessor |
Toyota KZ engine Toyota L engine |
| Successor | Toyota GD engine |
The Toyota KD engine series is a diesel engine produced by Toyota which appeared in 2000.
First appearing in 2000, the 1KD-FTV is one of the newest engines built by Toyota.
The 1KD-FTV is a 3.0L (2982cc) straight-4 common rail D-4D diesel engine with a variable nozzle turbocharger (VNT) and Intercooler. It has 16 valves and a DOHC (double overhead camshaft) design. Bore is 96 mm and stroke is 103 mm. It generates 172.72 hp (127 kW) at 3400 rpm, and 260 lbf·ft (352 N·m) of torque at 1800-3400 rpm depending on target market and emission specifications. In some markets, outputs are 127kW/410Nm and 140kW/420Nm.Redline of this engine is at 4200 RPM. Compression ratio is 17.9:1.
This engine uses Toyota's D-4D Common Rail fuel injection technology operating at ultra high pressures of up to 135 mpa (1350 bar or about 19,580 psi) which is about 8 times more than the pressure of conventional fuel injection systems within a "common rail" that feeds the injectors on all four cylinders. This is combined with a 32-bit ECU which controls fuel quantity, valve-timing, and boost pressure at different engine parameters resulting in best fuel economy and also full utilization of power during acceleration. Pilot injection is also utilized by the common rail fuel system to smooth engine operation. Small amounts of fuel are introduced into the combustion chamber prior to the main injection event, reducing lag time and promoting more continuous and complete combustion. Exterior and interior engine noise is also reduced.
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