Advanced 6.7 Liter Natural Gas Engine Development


SCH Number
Lead Agency
Energy Commission (California Energy Commission)
Document Title
Advanced 6.7 Liter Natural Gas Engine Development
Document Type
NOE - Notice of Exemption

Document Description
GT1 will partner with Cummins Westport, Inc. (CWI) to develop and vaiidate an Alpha engine design for a new, high-performance, spark-ignited, dedicated natural gas 6.7 liter engine. This project will be based on the 6.7 liter Cummins IBS6.7 diesel engine platform, which is widely used in a diverse range of medium heavy duty vehicles, particularly in the Class 5 to Class 7 truckl and bus markets. CWI will develop the ISB6.7 G to use its stoichiometric, exhaust gas recirculation (EGR), three-way catalyst (TWC), spark ignition (SESI) natural gas combustion technology in conjunction with a three-way exhaust catalyst.

Contact Information
Reynaldo Gonzalez
California Energy Commission
1516 Ninth Street, MS-48
Sacramento, CA 95814

Phone : (916) 327-1334


Other Location Info
Des Plaines, IL

Notice of Exemption

Exempt Status
Type, Section or Code
Reasons for Exemption
The project involves engine development activities that will not have a significant environmentaal impact.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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