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Cummins and Cummins Westport recalling 25,013 natural gas engines over exhaust fire risk

Green Car Congress

are recalling a total of 25,013 Cummins Westport Model ISL G and ISX12 G natural gas engines manufactured between 2007 and 2014 due to a risk of elevated exhaust temperatures or flames from the exhaust under certain conditions. A new ECM calibration will be installed. Cummins Inc. and Cummins Westport Inc.

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HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Green Car Congress

The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) This phase was conducted at SwRI in 2012.

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Toyota introduces new XSE Hybrid Grade Camry

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for XSE grade, which uses a dual-outlet exhaust). Most AWD grades have 202 hp, while the Camry XSE AWD grade has 205 hp with dual exhaust. A variable cooling system, variable oil pump and a cooled exhaust gas recirculation (EGR) system all contribute to the engine’s high thermal efficiency and outstanding fuel economy.

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Study finds truck fleet clean-up significantly decreases engine emissions near Port of Oakland

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Pollutant concentrations were measured at high time resolution in the exhaust plumes of more than a thousand drayage trucks as they drove toward the Port on a major access road. Emission factors were matched to data from a statewide drayage truck registry, including engine make, model year, and installed emission control equipment.

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Cummins Begins Production of First EPA Tier 4 Interim Engines; Up to 5% Improved Fuel Efficiency

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has begun production and supply of the first EPA Tier 4 Interim and EU Stage IIIB certified engines and aftertreatment for early installation by off-highway equipment customers. Source: Cummins. Click to enlarge. Cummins Inc. The new emissions regulations take effect 1 Jan.

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Infiniti introducing production-ready variable compression ratio engine at Paris Motor Show

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This multiple-link variable compression ratio (VCR) mechanism can be installed without increasing the engine size or weight substantially by selecting a suitable type of link mechanism and optimizing the detailed specifications. Nissan, in a 2003 paper, said that its multi-link geometry resolved those previous issues. Croguennec, S.

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Mercedes-Benz Introducing More BlueTec EEV trucks

Green Car Congress

EEV (Enhanced Environmentally Friendly Vehicle) is a European classification used for engines which comply with a more stringent exhaust emission standard that reduces particulate emissions by roughly a further one-third compared to Euro 5 limits. Additional exhaust gas aftertreatment is not necessary.

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