|
|
| |  | |
PowerTech E
2.4L, 3.0L, 4.5L, and 6.8L Diesel Engines
Power Ranges
2.4L: 60 kW (80 hp)
3.0L: 57-74 kW (76-99 hp)
4.5L: 63-104 kW (85-140 hp)
6.8L: 104-149 kW (139-200 hp)
2-Valve Cylinder Head
Cross-flow head design provides excellent breathing from a lower-cost 2-valve cylinder head.
High-Pressure Common-Rail (HPCR) and Engine Control Unit (ECU)
The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures, up to 1600 bar (23,000 psi). It also controls fuel injection timing and
provides precise control for the start, duration, and end of injection (4.5L and 6.8L).
Electronic Unit Pump Fuel System (EUP)
Regulated rated speed flexibility and improved cold-start and warm-up control (2.4L and 3.0L).
Fixed Geometry Turbocharger
Fixed geometry turbochargers are precisely matched to the power level and application.
Turbocharged
In turbocharged engines, the air is pre-compressed. Due to the higher pressure, more air is supplied into the combustion chamber allowing a corresponding increase in fuel injection
which results in greater engine output (4.5L).
Air-to-Air Aftercooled
This is the most efficient method of cooling intake air to help reduce engine emissions while
maintaining low-speed torque, transient response time, and peak torque. It enables an engine
to meet emissions regulations with better fuel economy and the lowest installed costs.
Compact Size
Mounting points are the same as Tier 2/Stage II engine models.
Multiple Injection Strategy
The new high-pressure common rail (HPCR) fuel system and engine control unit (ECU) allow
for multiple fuel injections. The number of fuel injections, based on speed and load, help
contribute to lower combustion temperatures, which reduce the formation of NOx and
particulates. The multiple injection strategy also provides an added benefit of noise
reduction (4.5L and 6.8L).
John Deere Electronic Engine Controls
Electronic engine controls monitor critical engine functions providing warning and/or
shutdown to prevent costly engine repairs and eliminate the need for add-on governing
components all lowering total installed costs. Snapshot diagnostic data can be retrieved
using commonly available diagnostic service tools. Controls utilize new common wiring
interface connector for vehicles or available OEM instrumentation packages; new solid
conduit and âTâ connectors reduce wiring stress, providing greater durability and improving
appearance. Factory installed, engine mounted ECU comes with wiring harness and
associated components; industry standard SAE J1939 interface communicates with other vehicle systems, eliminating redundant sensors and reducing vehicle total installed cost.
Engine Performance
- New power bulge feature (4.5L and 6.8L)
- Increased low-speed torque
- Higher level of peak torque
- Faster torque rise
- Lower-rated speeds available for reduced noise and improved fuel economy
Additional Features
- Self-adjusting poly-vee fan drive
- Forged-steel connecting rods
- Replaceable wet-type cylinder liners (4.5L and 6.8L)
- Either-side service
- 500-hour oil change
- Gear driven auxiliary drive
|
|
|
|
