Injector having two separate nozzles Mixed mode injectors are injectors with an injector nozzle that can provide different spray patterns to enable different combustion modes to be used in the same engine. A prototype mixed mode injector developed by Caterpillar that allows two different included spray angles is illustrated in Figure 26. Shop Remanufactured Navistar 9.3L DT570 2004-2005 Injectors at Highway and Heavy Parts. 15 Month Parts Warranty, Built to OEM Specifications, Delivery in 2-Days or Less to most areas.
The NavistarDTengine family is a line of mid-range inline-6diesel engines. With horsepower ratings ranging from 170 hp (130 kW) to 350 horsepower (260 kW), the Navistar DT engines are used mainly in medium-duty pickup truck and shuttle bus applications like as school busses, although some versions have been recently developed for heavy duty regional-haul ánd severe-service applications.Prior to 1986, Navistar International, then recognized as World Harvester Corporation, used the DT motor in farm and structure products.
Designedit
Thé Navistar DT diesel powered engines are usually of a wet-sleeve design. This means that the cylinder walls (sleeve) is usually a separately machined part that suits into the cylinder bores forged into the engine block out. The canister sleeve can be in get in touch with with the motor coolant, hence the 'damp'-sleeve.
Navistar claims that the wet-sleeve style enhances toughness because the constant wall thickness of the sleeve allows for constant heat transfer, making sure the cylinders stay around during thermal expansion. Furthermore, they state that the hard cylinder sleeve is definitely more durable and use resistant than a softér, cast-in walls. Also, the replaceable cylinder sleeves secure the block from harm (elizabeth.g. in case of international objects getting into the canister) and can simply be changed, which Navistar promises enables simpler recovery to first specifications. The wet-sleeve design also allows the engine to end up being rebuilt easily to factory specifications, sometimes without even getting rid of the engine from the vehicle.
This style is compared to parent bore motors, where the cylinder walls are machined out óf the bores forged into the mass. International claims that the uneven width of the cylinder walls leads to the cylinders to become out there of circular during cold weather expansion, boosting wear. Furthermore, damage to the canister wall demands more intensive work to fix.
Fróm 1984 until late 1995, the DT engines used a Bósch pump-line-nozzIe (PLN) mechanical direct fuel injection program. 1984 through 1992 DTs utilized a Bosch MW design pump motor, while the 1993-1995s used a Bosch G style water pump, and beginning what was known as New Era Diesel engine style, which is definitely still the same basic block out design. Mechanical injection was nevertheless used in trucks up into the 1997 calendar year, but this is definitely uncommon. In 1994, expected to tightening emissions rules, the engines had been redesigned to make use of electronically managed unit direct fuel shot. From 1994 to 2004, the engines used HEUI (Hydraulically actuated Electronically controlled Unit Shot) injectors, co-deveIoped by Navistar ánd Caterpillar Inc. 1 From 2004 to 2009, the engines use Cosmopolitan's Electro-Hydraulic Era Two (Gary the gadget guy2) unit injectors.
Current alternativesedit
Thé Navistar DT engines are currently obtainable in three configuration settings. These have got been up to date to comply with the United Areas Environmental Defense Company's 2007 emissions rules. These variations have happen to be renamed to conform to International's new MaxxForce motor brand name.
- MaxxForcé DT: 7.6 L (466 cu in) displacement, bore x swing 4.59 back button 4.68 in (116.5 x 118.9 mm); with hp ratings from 210-300 hp (160-220 kW). The MaxxForce DT is usually available in regular and high torque configuration settings, which supply additional torque. 2
- MaxxForce 9: 9.3 L (570 cu in) displacement, bore back button swing 4.59 a 5.75 in. (116.5 x 146.1 mm); with hp varying from 300-330 horsepower (220-250 kW). This engine is equivalent to the MaxxForcé DT, but thé piston heart stroke is increased to increase displacement to 9.3 liters. 3
- MaxxForce 10: Exact same displacement as MaxxForcé 9, with horsepower ranging from 310-350 hp (230-260 kW). This engine features stronger components, such as steel-crownéd two-piece pistóns, strengthened engine wedge, and a titanium turbocharger generator to manage with the extra strength and stress of severe-service and heavy-duty programs. 4
The engines are furthermore obtainable for defense applications under the MaxxForce N brand name. The MaxxForce DT is definitely identified as the MaxxForce N7.6I6, and the MaxxForce 10 is known as the MaxxForce Deb9.3I6. Modifications from the civilian variations consist of diamond-coated injéctorscitation neededto enable the engines to run on JP-8 gasoline.5
Electronic injection Versionsedit
Navistar DT engine | |
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Overview | |
Producer | Navistar Essential |
Manufacturing | 1971-20161 |
Layout | |
Configuration | lnline-6 |
Displacement | 360-466-570 cubic in ., 466 cu in (7.6 D) |
Canister bore | 4.59 inches |
VaIvetrain | 0HV, 2 or 4 valves per cylinder |
Combustion | |
Turbocharger | variable and fixed geometry turbocharged |
Fuel system | direct injection and HEUI (hydraulic electronic unit injection) |
Fuel type | Diesel |
Output | |
Power output | 170-350hp (commercial), 375hp military |
Navistar DT466E | |
Review | |
Producer | Navistar World |
Manufacturing | 1994-2004 |
Layout | |
Settings | lnline-6 wet-sleeved |
Displacement | 466 cu in (7.6 M) |
Cylinder bore | 4.59 ins |
Piston stroké | 4.68 in . |
Block materiaI | Cást irón |
Head materiaI | Cást irón |
VaIvetrain | 0HV 4 valves per cylinder2 |
Combustion | |
Turbocharger | turbocharged |
Fuel system | HEUI (hydraulic electronic unit injection) |
Fuel type | Diesel |
Dimensions | |
Dry weight | 1,425 lbs dry |
Chronology | |
Predecessor | DT466 |
Successor | MaxxForce DT |
- DT 530E 530ST (8.7L): available in standard and high-torque constructions. Replaced in 2004 by DT/HT 570, which were replaced in 2007 by the MaxxForce 9 and 10, respectively. Used electro-hydraulic unit injection.
- DT 466E (7.6L): Presented in 1994, added electronic control to previous, non-electronic DT 466, superseded by model 12 months 2005-and-later DT 466 with variable geometry turbocharger (observe below). Furthermore transformed over from mechanical fuel shot to electro-hydraulic device shot (HEUI).
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MechanicaI Injection Optionsedit
- DT 466 Family, Model A175 and A new190.
- DT 408 (6.7L): a smaller edition of the DT family. Used mechanised fuel shot.
- DT 360 (5.9L): 6 canister mechanical injection produced from 1987 to 19943
- DTA 360: Exact same as above, but with án aftercooler, the 'A new' stands for 'aftercooled'.
- DTA 466: Exact same as earlier mechanical-injéction DT 466, but with an aftercooler.
Additional Versions:- Turbo 400 motor: edition utilized in IH plantation and construction gear, with numerous different sizes.
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Updaté backgroundedit
In 2004, the whole DT family of engines was updated to fulfill 2004 emissions criteria established out by the United Expresses Environmental Protection Agency. Changes to the engines incorporated a new turbocharger (calledEVRT, fór 'Electronic Adjustable Reaction Turbocharger') with portable turbo vanes to improve increase and decrease lag, a fresh, electronically managed hydraulic device fuel shot program, cooled Exhaust system Gasoline Recirculation to decrease emissions, and brand-new four-valve canister mind. 6In 2007, the DT engines were up to date once once again to conform with stricter 2007 emissions specifications. The DT 466, DT 570, and HT 570 engines will become renamed MaxxForcé DT, MaxxForce 9, and MaxxForce 10, respectively. New features consist of closed-crankcase ventilation and brand-new wiring harnesses. The MaxxForce engines are available in design yr 2008 Cosmopolitan vehicles and IC Corporation school busses.ln 2010 the DT motors were up to date once again for conformity with 2010 emissions requirements. They all obtained new, dual turbochargers, with higher-rated variations of the MaxxForcé DT and aIl MaxxForce 9 and 10 motors getting intercooling and aftercooling. Updates to fuel injectors, the EGR system, and chilling were also component of the 2010 adjustments.2015 was the final production year for the MaxxForcé DT. It had been discontinued for 2015, with some busses being constructed as 2016 models. It continued in the RE for the 2016 model. It was announced on September 22, 2016 that the Re also will end up being created with thé Cummins ISL9 ánd the DT offering was going away completely.Programsedit
- World CXT (DT 466/MaxxForce DT)
- Cosmopolitan 8500 (HT 570)
- World 7300, 7400, 7500 (DT 466, DT 570, HT 570)
- Cosmopolitan 4300, 4400 (DT 466/MaxxForce DT, DT 570/MaxxForce 9)
- Essential 3300, 3800, 3900 bus chassis
- AmTran Corporation Genesis (1992-2002) (DT 360/DT466/DT466E)
- AmTran Corporation Volunteer/ConventionaI (DT 360/DT466/DT466E)
- IC Company FE 300 (DT 466/MaxxForce DT)
- IC Company RE 300 (DT 466/MaxxForce DT, DT 570/MaxxForce 9) MaxxForce DT discontinued
- IC Company CE 300 (DT 466/MaxxForce DT) MaxxForce DT stopped
Observe furthermoreedit
References and external hyperlinksedit
- Records
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- ^http://www.trucktrend.com/features/1603-navistar-maxxforce-dt466e/
- ^http://www.dieselhub.com/tech/dt466.html
- ^http://www.agkits.com/international-dt360-engine-data-sheet.aspx
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