The Cummins ISX is an Inline (Straight)-6diesel engine produced by Cummins for heavy duty trucks and motorcoaches, replacing the N14 in 2001 when emissions regulations passed by the EPA made the engine obsolete. Originally called the 'Signature' series engine, the ISX uses the 'Interact System' (hence the 'IS' which is the moniker for the full authority, on highway fuel system Cummins pioneered) to further improve the engine. This engine is widely used in on highway and vocational trucks and is available in power ranging from 430 hp all the way to 620 hp 2050 lb-ft. The QSX is the off-highway version of the ISX with the Q standing for Quantum. The QSX is used for industrial, marine, oil & gas and other off-highway applications.Cummins also produced a 650 hp and 1950 lb-ft version for the RV market.
Jan 1, 2010 - I am purchasing an other truck, I am looking at a 2006 Volvo 780. Both trucks have apprx 450000 miles with an 10 speed Fuller auto shift trans. ISX horror stories scare me. Guessing they got most of the bugs worked out at this point, but a little nervous about taking a chance with one.
Until 2010 this engine was a dual overhead cam design with one cam actuating the injectors and the other the valve train. This injection system is known as HPI (high pressure injection) where the injectors are cam-actuated to create injection pressure. The fuel system uses an Integrated Fuel System Module (IFSM) with a lift pump, gear pump, pressure regulators, shutoff valve, metering and timing actuators to deliver fuel to the injectors. It has a one piece valve cover that is either plastic or on older models a chrome plated steel cover otherwise known as the Signature 600 or ISX CM570.
In 2002, the ISX CM870 brought cooled exhaust gas recirculation (EGR) which takes exhaust gas and recirculates it back into the intake of the engine lowering the combustion chamber temperatures limiting the formation of NOx.
In 2008, Cummins unveiled the ISX CM871, this engine featured a Diesel Particulate Filter (DPF) which trapped the particulate matter or 'soot' produced in the engine. With the help of the Diesel Oxidation Catalyst (DOC) the soot trapped in the DPF is oxidized and turned to ash during a process called regeneration. In motorhomes this was available as a 600 or 650 HP version.
The current EPA 2010 version known as ISX15 CM2250 features enhanced Exhaust Gas Recirculation, Diesel Particulate Filter and Selective Catalytic Reduction (SCR), also known as Urea Injection. SCR consists of a Diesel Exhaust Fluid (DEF - composed of urea and water) injection system: holding tank, pump, controller, and injector and an SCR catalyst brick. DEF is heated, pumped and injected into a decomposition tube which then reacts with the exhaust reducing NOX. The ISX15 CM2250 and CM2350 has eliminated the injector camshaft due to the advent of the common rail fuel system in which the fuel is pressurized from a high pressure, multiple piston pump, transferred through tubing to a rail where fuel is stored under extremely high pressures up to 35,000 psi.
Emissions Control[edit]
The Cummins ISX diesel engine can be run in a dual fuel configuration, meaning it can properly operate on diesel fuel and natural gas. The burning of a natural gas alternative preserves diesel thermal efficiencies. The more efficient engine can produce less emissions in turn. The ISX can achieve this by altering ignition delay and injection timing. By examining the start of combustion (SOC), the engine’s computer is able to employ a predictive ignition delay correlation. The predictive characteristics of the engine maximize both efficiency and useful power for the given fuel source. Compensations are made for the natural gas so that the power band and operating range are still functional for customers, while reducing emissions[1]. Testing has also been done with the Cummins ISX by the EPA for natural gas usage that yielded results of major NOx emissions reduction. The configuration boasts ninety percent lower NOx emissions than the current EPA standard. This makes the Cummins ISX that burns natural gas one of the cleanest running diesel engines in the world[2]. The ISX also utilizes a DPF, or diesel particulate filter, required by the EPA. The DPF filters out the solid particles in the engine’s exhaust, reducing tailpipe emissions. The DPF does have to be regularly maintained, however, because of its intricate design. The emissions control system will institute a filter regeneration which burns off the particulates. Any in-combustibles found in lubrication additives will remain in the DPF, which can cause problems with back pressure and efficiency. This means the DPF needs to be regularly removed and cleaned for the Cummins ISX. An ash-less oil could mean that cleaning would be unnecessary, but can inhibit lubrication properties. A zero-phosphorus oil has been studied and found to be ideal for DPF systems and lubrication. The oil displays passing results for both piston deposits and oil consumption, which means the DPF system would be optimized with use of zero-phosphorus, ultra low sulfur oil[3]. The Cummins ISX also utilized DEF, or diesel exhaust fluid, in later models when EPA requirements changed. DEF is system of injected urea that reduces the emissions of a diesel engine. The Cummins ISX is required to have inhibitors in place for certain failures of the DEF system. When the DEF tank is low or empty, the ISX cuts power by twenty five percent. Power cuts and driver warnings are also used when the DEF system has been tampered with or is not functioning properly. Cummins has corrected several malfunctions and conducted customer based research of several million miles of on road use of the Cummins ISX to make the DEF system as functional as possible. The system is also required to de-rate power given any problems in order to reduce emissions to an absolute minimum[4].
Technology[edit]
In early ISX engines an anti backlash gear train is used. The anti backlash gears allow the engine to operate with minimal gear rattle. Cummins uses a gear train in the front of the engine which is inherently noisy. The anti backlash gearing makes the engine less noisy due to the reduced rattle while in operation.The anti backlash gear train comes at a cost of efficiency. The Cummins ISX 15 model equipped with anti backlash gearing suffers a friction loss. The gears must overcome more friction throughout their moving range than a standard gear. A standard gear in a Cummins ISX 15 needs to overcome 0.75 Newton meters of force, while the anti backlash gearing needs to overcome approximately 5 Newton meters of force[5].
References[edit]
- ^Xu, Shuonan (October 13, 2014). 'Development of a Phenomenological Dual-Fuel Natural Gas Diesel Engine Simulation and Its Use for Analysis of Transient Operations'. SAE International. Retrieved 10 March 2019.
- ^Gerber, Raleigh (July 18, 2018). 'Clean Energy Launches Zero Now Financing to Put Fleets in Clean New Natural Gas Trucks for the Price of a Diesel Truck'. Business Wire. Retrieved February 20, 2019.
- ^McGeehan, A, J. (2012). 'Extending the Boundaries of Diesel Particulate Filter Maintenance With Ultra-Low Ash'. TRID.
- ^'Control of Emissions From New Highway Vehicles and Engines'. EPA. June 7, 2011.
- ^Joshi, Y. V (2014). 'Gear Train Mesh Efficiency Study: The Effects of an Anti-Backlash Gear'. SAE International Journal of Commercial Vehicles.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Cummins_ISX&oldid=899688508'
The Cummins ISX is a family of post-ACERT heavy duty dieselengines.
How much does a Cummins ISX 13 engine weigh?
What type coolant used for 2007 peterbilt 379 cummins isx?
The Cummins ISX uses red ELC (extended life coolant). Read More
Cubic inches of a cummins isx?
What will cause coolant in the head on an ISX Cummins with 200 miles on it?
Broken head gasket...since an ISX with 200 miles is still under warranty, let Cummins fix it. Read More
What is the coolant capacity of a cummins isx?
What type coolant used for cummins isx?
What are the torque specs on a cummins ISX flywheel?
What is the oil capacity for cummins isx 400 HP?
What is the oil capacity on a 450 isx Cummins?
Where is the crankcase pressure sensor on a cummins isx engine?
What type of coolant do you run in an 05 cummins isx 400st engine?
Where is thermostat located on cummins isx 400?
Upper front right portion of the engine. Read More
Where is the thermostat on cummins isx 435 located?
What is the largest cummins truck engine?
The largest highway diesel they offer is the ISX, at 14.9 liters. Read More
What will cause oil in the coolant on a ISX cummins diesel engine?
How much oil goes in a 2007 kenworth t600 with cummins isx engine?
What to buy Volvo with isx cummins or d13?
Really need to know a model year in order to give a recommendation. Read More
Where is the oil pressure sensor on a cummins ISX motor?
On the driver side of the engine behind the fuel filter on the side of the block Read More
Heavy commercial vehicle engine?
One of the most popular is the Cummins ISX--15 liters displacement, anything from 435 to 600 horsepower. Read More
Where is egr valve on cummins isx?
Right side of the engine, towards the front... there's a metal plate in front of it, and you typically have to remove a CAC hose to get to it. Read More
What is the coolant capacity in litres of a cummins isx?
That would actually be dependent on the make and model of the truck, not the engine. Even if it was dependent on the engine, you never specified if it was the ISX12 or ISX15. Read More
What diesel engine is better a cummins or a Detroit diesel?
Different strokes for different folks. The Detroit Diesel 60 series is great for over-the-road applications. The Cummins ISX fares better in heavy haul applications and anything which involves going off-road. Read More
How do I put on a 1998 cummins isx serpentine belt for semi. Do you have a diagram?
Please rephrase your question... you either have the model year wrong, or you don't realize what you have is an N14 engine. Read More
What is the difference between a red cummins and a black cummins?
Basically, year of manufacture and what emissions regulations they had to fall under. Pre-2003 ACERT motors are your red tops, whereas Cummins designated their line of diesel motors as a whole new series under the post-2003 regulations (the N14 became the ISX, the M11 became the ISM, the L10 became the ISC, etc.). Read More
What is the weight Volvo 780 with cummins 450?
17,500 - 18,500. The ISX will weigh more the same rated at 450 horsepower at it would at 600 horsepower.. the displacement, block size, etc. are the same. Read More
How many trucks does autocar sell?
Approximately 1900 in 2010. Autocar is the leading supplier of Natural Gas Powered vehicles in the USA. they feature the Cummins ISL-G gas engine. Testing is just being started on the higher horsepower ISX 11.9-G Cummins engine in an Autocar chassis. Read More
What is the engine capacity of CH Mack truck?
Need to know which engine you have. The Mack engines (E6, E7, and E9) and Cummins engines (L10, M11, N14, ISL, ISM, and ISX) were available in these trucks. Read More
Where is the air compressor on a 2009 Peterbilt truck?
That's going to depend on what engine you have. If you have the Cummins ISX, it'll be on the left side of the vehicle, towards the front of the engine, and the high pressure fuel pump will sit above it. Read More
How much horsepower is there in the largest Kenworth diesel engine?
Kenworth doesn't manufacture their own motors. Current options include the 12.8 litre PACCAR MX motor or the 14.6 litre Cummins ISX motor. Read More
What is the best hp for isx cummins engine best fuel mileage?
The new ones are cruised at 1250 - 1350 RPMs at 450 hp and below. Go with those with 3.36s, and you have a suitable setup for a five axle unit. Read More
What is the diesel aftertreatment system used in the 2011 prostar with cummins isx motor has Navistar gone in for DEF against the their cooled-egr technology for these vehicles?
They use the Cummins aftertreatment system with the DPF, DEF doser, and SCR on their vehicles equipped with Cummins engines. After the failure of the MaxxForce aftertreatment system to meet EPA and CARB requirements, they've gone to a full aftertreatment system with DEF and an SCR for the MaxxForce engines, as well. Read More
Where is the EGR located in a 2004 cummins isx 435 engine?
the egr is located on the right side of engine under the exhaust manifold. it's about 20'lone it see if it leaks look for wight trails of coolant. Read More
Torque spec on rocker arm shaft on cummins isx?
Tighten to 50 ft/lb,then back off all rocker shafts,then 22ft/lb plus 60 degrees which is one flat of a bolt 'hexagon' Read More
How do you bleed the fuel lines on a 2004 N14 cummins?
First: it's the make of the tractor which determines what mechanism is in place to bleed the fuel lines, and not the motor. Second: the N14 wasn't manufactured in 2004. By then, it was replaced with the ACERT-compliant ISX. Read More
Where is the egr differential pressure sensor on the 2002 cummins isx engine?
Egr diff sensor is behind your fuel pump on the drivers side. It has two small hoses running to the bottom of it. It looks like it is inside a cage that is the best way to explain it Read More
What is the difference between a ISX 525 and a ISX 560?
Horsepower rating, some ECM programming. Read More
How many gallons of fuel is used when idling for an hour with the AC on in a freightliner century class?
Rough estimate is a gallon per hour. Really depends on the engine. Engine options available for the duration of the availability of the Century Class include the 11.1, 12.7 and 14 liter pre-ACERT 60 Series Detroit engine, the 12.8 Mercedes-Benz MBE, the 14.0 post-ACERT 60 Series Detroit, the Cummins M11, the Cummins N14, the Cummins ISM, the Cummins ISX, and the Caterpillar 3306, 3406, C11, C12, C13, and C15 engines. In some markets, engines such… Read More
What is the average cost to repair a Tractor Trailer?
There's no such thing as an average cost because it depends on a few things, like what engine you have (Detroits and Mercedes-Benz are the cheapest, Cats, Volvos and Macks are really expensive, and Cummins are somewhere in between) and what's wrong with the truck. I had a starter go out on my Cummins ISX. Cummins used what turns out to be the most common starter in the world on it, and they're reasonably inexpensive… Read More
How many quarts of oil does a Volvo VNL 780 use?
That depends on if yours has the Cummins ISX, VED12, VED13, or VED16. I believe there was a VNL780 in production when the Detroit Diesel 60 Series and Caterpillar 3406E, C12, C13, and C15 were available options for Volvo, as well. Read More
Mid 128 pid 131 fmi 2?
I have a 2006 Volvo with and ISX Cummins engine. I have a faulty code that is coming up reading 128 pid 131 fmi 2. Also on idle the RPM goes to 5.5 to 6.5 by itself. Can you tell what is wrong with the truck? Read More
What filters are required for a 2009 International truck?
Make? Model? Engine make and model? As is, your question doesn't leave us enough information. We don't know if you're talking about a medium duty truck with a Maxxforce DT engine or a Class 8 tractor with a Cummins ISX. Read More
Where can you find serpentine belt diagram for 2005 Volvo vnl 670 semi tractor?
There should be a sticker near the belt which has a routing diagram on it. Barring that, we'd need to know if the truck has the Cummins ISX, Volvo VE D12, or Volvo VE D16 engine in order to provide you this information. Read More
Who was cummins the inventor of the cummins engine?
Correct reference to dodge truck engines is it Cummins engine or cummins?
What cummins motors will fit in to a 2005 dodge cummins?
A 2005 5.9L Cummins is what fits. A 2005 5.9L Cummins is what fits. Read More
Did ford make the Cummins engine?
No Cummins INC company makes the Cummins engine. Read More
Who makes cummins engines?
Who owns cummins engines?
What is the most dependable semi trailer truck today?
![Volvo D13 Vs Cummins Isx Volvo D13 Vs Cummins Isx](http://www.overdriveonline.com/wp-content/uploads/sites/8/2013/01/engine-13-liter-vs.-15-liter.png)
That's really more a matter of powertrain and who manufactured it, who manufactured the axles, etc. than the brand name on the hood. Volvo with a Volvo motor is a generally bad combination on the US market. Most anything coupled to a Cummins ISX with an Eaton-Fuller transmission should be pretty reliable. Read More
Who came up with dodge cummins?
The Cummins engines are designed and manufactured by the Cummins engine company. Read More