Cummins ISL: Difference between revisions

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The Cummins ISL is a straight-6 diesel engine designed and produced by Cummins. It is 8.9 liters in displacement, and went into production in 1998. The engine was based on its 8.3 liter predecessor, the Cummins C8.3 engine.
The '''[[Cummins]] ISL''' is an 8.9 litre, inline six cylinder diesel engine. Introduced (for buses) in 1999, the ISL was designed to bridge a gap in Cummins' line of engines that the discontinuation of [[Cummins L10|L10]] had left, however it is not a direct descendant of the L10 and has more in common with the ISC.


By late 2003, Cummins announced that they will revise the engine to sport a High-Pressure Common-Rail (HPCR) system to help with emissions and also a variable geometry turbocharger system to help with the performance on this engine.
The CNG-fueled [[Cummins L Gas Plus|L Gas Plus]] was based on the ISL's 8.9 litre block. It was replaced by the [[Cummins Westport ISL G]] in 2008.


The Cummins ISL also has a sister engine which is based on the existing ISL 8.9-liter block which runs on compressed natural gas. Cummins reintroduced this engine as the L Plus engine which has a power rating of 330 horsepower (246 kW), and it is for 60-foot (18 m) articulated bus. A few thousand units of this engine are now operating in a wide variety of applications.
The EPA 2004 compliant ISL was introduced in October 2002 and met the limits of 2.5 g/hp-hr of nitrogen oxide (NOx) and nonmethane hydrocarbons (NMHC) and 0.1 g/hp-hr of particulate matter. Cummins updated the ISL with a High-Pressure Common-Rail (HPCR) injection system and a variable geometry turbocharger to improve the performance of the engine.<ref>[http://www.diesel-service-parts.com/cummins-isl.html Helpful Cummins ISL Information], dieselserivceparts.com. Retrieved on 2009-06-03</ref>


The ISL is not to be confused with the older L10 series, which Cummins had produced and sold from 1982 to early 1998. The old L10 series, which like the current ISL, had seen use in the applications listed above (plus, early Dennis double decker buses), displaced 10.0 liters, was slightly larger, and had been replaced by the M11 entirely in 1994, although the natural gas version, known as the L10G, had hung on until the spring of 1998.
The EPA 2007 standards set a limit of 0.01 g/hp-hr of particulate matter. The ISL features a particulate filter and a crankcase coalescing filter to control emissions. During the phase-in period between 2007 and 2009, Cummins produced 50% of their engines to meet EPA 2010 regulations. The EPA set 2010 NOx emission at 0.2 gr/hp-hr. Cummins employed selective catalytic reduction (SCR), which was already used in Europe to meet the Euro 4 levels, to reduce NOx emissions. Cummins announced on January 8, 2010 that the ISL9, as it is now known, received EPA 2010 certification.<ref>[http://cumminsengines.com/every/news/20100108US.page? Cummins Receives EPA 2010 Certification for Heavy-Duty and MidRange Engines] (Press Release). 8 January 2010. Retrieved on 23 April 2012.</ref>


==Models==
== Models ==
* ISL 250
{| class="wikitable sortable" border="1" cellspacing="0" cellpadding="2"
* ISL 280
!Model
* ISL 330
!Max. power
==Emmissions Certifications==
!Max. revs
===Euro Standards===
!Max. torque
{| border="1" cellspacing="0" cellpadding="2" class=sortable
!Emmissions certifications
!Tier
!Requirements and Features
|- align="center"
|- align="center"
|Euro III
|ISL 250
|
|250 hp
* 2.1 g/kWh of Carbon Monoxide
|2200 rpm
* 0.66 g/kWh of Hydrocarbons
|730 lb-ft @ 1300 rpm
* 5 g/kWh of Nitrogen Oxides
|EPA 2004, EPA 2007
* 0.1 g/kWh of particulate matter
|- align="center"
|- align="center"
|Euro IV
|ISL 280
|
|280 hp
|}
|2200 rpm
===EPA Standards===
|900 lb-ft @ 1300 rpm
{| border="1" cellspacing="0" cellpadding="2" class=sortable
|EPA 2004, EPA 2007
!Tier
|- align="center"
!Requirements and Features
|ISL 330
|330 hp
|2200 rpm
|1100 lb-ft @ 1300 rpm
|EPA 2004, EPA 2007
|- align="center"
|ISL9 250
|250 hp
|2200 rpm
|730 lb-ft @ 1300 rpm
|EPA 2010
|- align="center"
|ISL9 280
|280 hp
|2200 rpm
|900 lb-ft @ 1300 rpm
|EPA 2010
|- align="center"
|ISL9 330
|330 hp
|2200 rpm
|1100 lb-ft @ 1400 rpm
|EPA 2010
|- align="center"
|ISL9 330 H
|330 hp
|2200 rpm
|1050 lb-ft @ 1500 rpm
|EPA 2010, EPA 2021
|- align="center"
|ISL9 380
|380 hp
|1900 rpm
|1250 lb-ft @ 1696 rpm
|EPA 2013
|- align="center"
|ISLe
|350 hp
|2100 rpm
|1550 Nm
|Euro 2
|- align="center"
|- align="center"
|EPA-2002
|ISLe
|
|209-260 hp
|2100 rpm
|1550 Nm
|Euro 3
|- align="center"
|- align="center"
|EPA-2007
|ISLe
|
|280-400 hp
* 1.2 g/hp-hr of Nitrogen Oxides
|2100 rpm
* 0.1 g/hp-hr of particulate matter achieved with particulate filter
|1700 Nm
* Able to run on 15 ppm Ultra Low Sulphur Diesel
|Euro 4, Euro 5
* Cooled EGR technology
|}
|}
== References ==
<references />
== External links ==
* [http://cumminsengines.com/every/applications/urban_bus_shuttle/EPA_2010_ISL9_Urban.page? EPA 2010 ISL9 product page for buses]
* [http://cumminsengines.com/every/applications/2007_urban_bus_shuttle/isl_shuttle07.page? EPA 2007 ISL9 product page for buses]
* [https://mart.cummins.com/imagelibrary/externallist.aspx?css=https%3a%2f%2fwww.cummins.com%2fthemes%2fcustom%2fcummins%2fcss%2fbrochures.css&Brochure+Publish+Status=Published&Microsite=CumminsEngines&Technical=0&Product+Type=&engine=L9+for+Transit+and+Shuttle+Bus+(2021)&email=anon%40cummins.com 2021 L9 Product PDF]
{{Cummins}}
[[Category:Cummins|ISL]]
[[Category:Diesel engines]]

Latest revision as of 09:55, 4 July 2022

The Cummins ISL is an 8.9 litre, inline six cylinder diesel engine. Introduced (for buses) in 1999, the ISL was designed to bridge a gap in Cummins' line of engines that the discontinuation of L10 had left, however it is not a direct descendant of the L10 and has more in common with the ISC.

The CNG-fueled L Gas Plus was based on the ISL's 8.9 litre block. It was replaced by the Cummins Westport ISL G in 2008.

The EPA 2004 compliant ISL was introduced in October 2002 and met the limits of 2.5 g/hp-hr of nitrogen oxide (NOx) and nonmethane hydrocarbons (NMHC) and 0.1 g/hp-hr of particulate matter. Cummins updated the ISL with a High-Pressure Common-Rail (HPCR) injection system and a variable geometry turbocharger to improve the performance of the engine.[1]

The EPA 2007 standards set a limit of 0.01 g/hp-hr of particulate matter. The ISL features a particulate filter and a crankcase coalescing filter to control emissions. During the phase-in period between 2007 and 2009, Cummins produced 50% of their engines to meet EPA 2010 regulations. The EPA set 2010 NOx emission at 0.2 gr/hp-hr. Cummins employed selective catalytic reduction (SCR), which was already used in Europe to meet the Euro 4 levels, to reduce NOx emissions. Cummins announced on January 8, 2010 that the ISL9, as it is now known, received EPA 2010 certification.[2]

Models

Model Max. power Max. revs Max. torque Emmissions certifications
ISL 250 250 hp 2200 rpm 730 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL 280 280 hp 2200 rpm 900 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL 330 330 hp 2200 rpm 1100 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL9 250 250 hp 2200 rpm 730 lb-ft @ 1300 rpm EPA 2010
ISL9 280 280 hp 2200 rpm 900 lb-ft @ 1300 rpm EPA 2010
ISL9 330 330 hp 2200 rpm 1100 lb-ft @ 1400 rpm EPA 2010
ISL9 330 H 330 hp 2200 rpm 1050 lb-ft @ 1500 rpm EPA 2010, EPA 2021
ISL9 380 380 hp 1900 rpm 1250 lb-ft @ 1696 rpm EPA 2013
ISLe 350 hp 2100 rpm 1550 Nm Euro 2
ISLe 209-260 hp 2100 rpm 1550 Nm Euro 3
ISLe 280-400 hp 2100 rpm 1700 Nm Euro 4, Euro 5

References

  1. ↑ Helpful Cummins ISL Information, dieselserivceparts.com. Retrieved on 2009-06-03
  2. ↑ Cummins Receives EPA 2010 Certification for Heavy-Duty and MidRange Engines (Press Release). 8 January 2010. Retrieved on 23 April 2012.

External links

v·d·e
Cummins logo.png
Current products
Diesel B4.5 / B6.7 - L9 - X12 / X15
CNG B6.7N - ISB6.7 G - ISX12 G - ISX12N - L9N
Former products
Diesel ISB6.7 - ISL9 - ISX12 / ISX15 B5.9 - C8.3 - ISC - ISM - L10 - M11 - NH Series - VTB-903
CNG B5.9G - B Gas Plus - C8.3G - L10G - C Gas Plus - L Gas Plus - ISL G
Propane B LPG Plus
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