ISL G Near Zero Update - Southern California Gas Company · PDF fileCWI offers 6 to 12 litre alternative fuel automotive engines. (CNG, LNG, RNG) ... ISL G NZ NOx engines are factory

Oct. 27, 2016

ISL G Near Zero Update

Cummins Westport Inc. (CWI)

2016 Cummins Westport Product Update

Cummins Westport is a joint venture company established in 2001 – 50% - Cummins Inc. - world’s largest builder of commercial diesels, – 50% - Westport Innovations Inc. - world leader in gaseous fuel engine

technology CWI offers 6 to 12 litre alternative fuel automotive engines. (CNG, LNG,

RNG) Engines are manufactured by Cummins. Parts, service and training support through the Cummins Distributor

network. Over 70,000 engines delivered worldwide

8.9 Litre Spark Ignited

SEGR Three Way Catalyst

66,000 lb. GVW

Refuse/Transit/Regional P&D Truck/Mixers

Current CWI Natural Gas Engines Over 70,000 engines delivered worldwide



33,000 lb. GVW

School bus/MD Truck/Shuttle bus/Sweeper/yard spotter



Up to 80,000 lb. GVW

Regional Haul Truck/Tractor/Refuse


Cummins Westport Engine Architecture

Cummins Westport engines feature spark ignition with Stoichiometric / EGR combustion This combustion technology was introduced in 2007 with the ISL G, the first heavy duty engine to meet the EPA

2010 standards (0.2 g/bhp-hr NOx, 0.1 g/bhp-hr PM) SEGR Technology is capable of lower emissions, particularly NOx Cummins Westport engines are factory built, dedicated natural gas engines that are based on Cummins diesel

engine platforms with over 80% parts commonality


T Three Way

Catalyst

O2 Sensor

EGR Cooler

Cha

rge

Air C

oole

r

O2 Sensor

Throttle

Fuel Spark Ignited

Spark Plug

Fuel and Fuel Systems

Cummins Westport natural gas engines fuel requirements enable the use of both CNG or LNG.

– Customers may choose CNG or LNG depending on duty cycle, application, and/or fuel availability.

Natural gas fuel (CNG or LNG) must meet fuel quality requirements. The minimum Methane Number is MN75

– A fuel quality calculator is available on the Cummins Westport website – http://www.cumminswestport.com/fuel-quality-calculator

Regardless of how the fuel is stored on the vehicle, the engine fuel inlet pressure requirement is the same

– ISB6.7 G and ISL G: minimum 70 psi, maximum 150 psi – ISX12 G: minimum 60 psi, maximum 150 psi


Natural Gas Engine Oil Specifications New Spec CES 20085 Old Spec CES 20074 • Sulfated Ash Level 0.7 - 0.9% • Calcium 1,800 – 2,300 ppm • Phosphorous 700 – 900 ppm • Zinc 800-1,000 ppm

• Sulfated Ash Level 0.4 - 0.6% • Calcium < 1,200 ppm • Phosphorous 600 – 800 ppm • Zinc 600 - 850 ppm

Cummins has recently restructured its Oil Registration process to secure the highest quality standards for oils used in Cummins engines. All oils approved prior to January 1, 2016 must be re-registered.

Both the revised CES20074 and new CES20085 oils meet Cummins Westport natural gas engine requirements.

Lubricating oils meeting the new CES20085 specification may provide better performance for ISB6.7 G, ISL G, ISL G Near Zero and ISX12 G natural gas engines.

Using CES20074 oils in these engines may reduce drain intervals.

No product should claim both approvals - if in doubt, check ash content to identify oil specification.

For more information on natural gas oil specifications visit the Brochures page on cumminswestport.com or visit Cummins QuickServe Online

6

Near Zero Emissions


Base ISL G engine design is the same – Engine is factory built at Cummins Rocky Mount Engine Plant – Ratings, warranty and operational / maintenance procedures will be the

same – No change in technician service certification requirements

Closed Crankcase Ventilation (CCV) will be added to engine – CCV system reduces engine related methane emissions by 70% – CCV filter change required at 2,000 hours

Three Way Catalyst will change to meet next level emissions – Remains maintenance free – Larger size catalyst with addition sensor added – New substrate composition for durability and emission performance

EPA & California ARB Certifications

Current ISL G certification PM is 80% below the EPA standard NOx is 35% below the standard

FTP EURO FTP EURO FTP EURO FTP EUROSTD 0.14 0.14 0.20 0.20 15.5 15.5 0.01 0.01CERT 0.06 0.06 0.13 0.01 9.8 8.00 0.002 0.001

NMHC NOx CO PM

ISL G Near Zero certification PM is 90% below the EPA standard NOx is 90% below EPA standard! CO2e is 16% below EPA standard!

FTP EURO FTP EURO FTP EURO FTP EUROSTD 0.14 0.14 0.02 0.02 15.5 15.5 0.01 0.01CERT 0.01 0.000 0.01 0.004 1.5 0.3 0.001 0.000

NMHC NOx CO PM

Current NOx standard 0.2 g/bhp-hr

ARB optional

low NOx standards

0.1 g/bhp-hr

0.05 g/bhp-hr

0.02 g/bhp-hr

9

Renewable Natural Gas (RNG) Improves GHG Profile


Landfill gas and biogas that has been processed to “pipeline quality” is RNG ISL G can operate on up to 100% RNG or as it sometimes called, biomethane. ISL G / ISX12 G engines are currently in operation with renewable natural gas from

landfills (landfill gas) & dairy farms (biogas)

Waste Management, Altamont Landfill,

California

EBI Montreal Inc. Quebec

Fair Oaks Dairy Indiana

Summary Cummins Westport has certified the ISL G Near Zero (NZ) NOx

with EPA and California ARB for Bus and Truck applications

ISL G NZ NOx engines are factory built and available for new Bus and Truck installations as well as for repowers of existing natural gas vehicles.

– There are no plans for retrofit kits for existing engines

Zero Emission technology at conventional propulsion system values!


OEM Availability OEM ISL G ISX12 G

Con

vent

iona

l Tru

ck Freightliner Yes Yes

International Yes -

Kenworth Yes Yes

Mack - Yes

Peterbilt Yes Yes

Volvo Yes Yes

Western Star - -

Ref

use

Truc

k

Autocar Yes Yes

Crane Carrier Yes Yes

Mack Yes -

Peterbilt Yes Yes

Coach MCI Yes

OEM ISL G ISB6.7 G

Tran

sit B

us El Dorado Yes Pending

Gillig Yes

New Flyer Yes

Nova Yes

Scho

ol B

us Blue Bird Yes

IC Bus -

Thomas Built

Yes Yes

ISL G NZ Availability Pending OEM orders


More information…www.cumminswestport.com

Natural Gas Academy: great source of information about NG, technology, vehicles Series of instructional videos, including engine walk-arounds and service &

driver training videos Engine information – specs, features, maintenance intervals Product Brochures & Bulletins available for download


Documents

ISL G Near Zero Update - Southern California Gas Company · PDF fileCWI offers 6 to 12 litre alternative fuel automotive engines. (CNG, LNG, RNG) ... ISL G NZ NOx engines are factory