Cleaner Exhaust Gas Reference 
Green Car Congress
APRIL 9, 2019
SEAT, a member of the Volkswagen Group, continues to spearhead the introduction of compressed natural gas (CNG) technology, giving customers the widest choice of vehicles that are cleaner, more sustainable and offer even greater efficiency.
Green Car Congress
JUNE 2, 2016
The City of Santa Monica, California has awarded Clean Energy a multi-year liquefied natural gas (LNG) contract to fuel its Big Blue Bus (BBB) fleet of vehicles. ARB has defined this certified Near Zero NO x emission level as equivalent to a 100% battery truck using electricity from a modern combined cycle natural gas power plant.
Green Car Congress
JANUARY 28, 2014
Five technology paths for very-low-NO x and GHG emissions from heavy-duty natural gas engines. The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. —“Pathways to Near-Zero-Emission Natural Gas Heavy-Duty Vehicles”. Click to enlarge.
Green Car Congress
AUGUST 22, 2017
These will plug the gaps in the existing legislation and will help to ensure that diesel vehicles in particular become considerably cleaner as regards their NO x emissions. The manufacturers will have to disclose the engine control unit functions connected with exhaust gas purification.
Green Car Congress
APRIL 14, 2017
These new standards are to include standards for newly manufactured locomotives (which ARB refers to as “Tier 5”), and a new standard for Tier 4 locomotives upon remanufacture. The key technologies used to achieve these reductions in NO x and PM emissions are exhaust gas recirculation and improvements to the cooling system.
Green Car Congress
MARCH 5, 2014
The system is referred to as MZD Connect in other markets.) The result is cleaner combustion with low NO x and soot emissions. Also due to the low compression ratio, the SKYACTIV-D diesel engine also burns cleaner, discharging far fewer nitrous oxides while producing virtually no soot. Source: Mazda. Click to enlarge.
Green Car Congress
AUGUST 4, 2011
From a powertrain frame of reference, Mazda is planning a building block strategy—i.e., Since this energy loss is primarily thermal in nature and can be attributed to the exhaust, cooling system, and engine and transmission surfaces, Mazda’s R&D team’s central focus is on improving the engine’s thermal efficiency cost-effectively.
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