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liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. liter engine. Achates Power announced that the 10.6-liter,
A review of 43 studies of the effects of E15 (15% ethanol blends) on Model Year 2001 and newer cars by the National Renewable Energy Laboratory (NREL) found that the studies reviewed showed no meaningful differences between E15 and E10 in any performance category. Fuel system and engine durability.
liter V8 engine for automobiles that is fueled entirely by hydrogen. In Japan, Toyota and other automotive-related companies are about to begin a collaborative effort to expand the range of fuel options for internal combustion engines. November 2021 hydrogen engine prototype. —Yamaha Motor president Yoshihiro Hidaka.
Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. Such an engine could provide a cost-effective solution for small recreational vehicle- and motorcycle applications. Oh and Plante. Click to enlarge. —Oh and Plante. g/kWh with a 3.3% kW) rating.
Stena Line is seeking novel, cost-effective approaches to recover energy from exhaust gases from ship engines and to transform it into a more useful energy form (e.g., The company is also interested in efficient turbine systems that generate electricity from the kinetic energy from the massflow and velocity of the exhaust gases.
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.) Earlier post.)
MAHLE Powertrain is developing an advanced spark-initiated pre-chamber combustion system—Turbulent Jet Ignition (TJI)—for otherwise standard spark-ignition (SI) engines found in current on-road vehicles. The system has been developed as a simple bolt-on addition for a modern engine design. —Toulson et al. ,
GE Aviation has completed the initial design of the first supersonic engine purpose-built for business jets. This new engine class, revealed as GE’s Affinity turbofan, is optimized with proven GE technology for supersonic flight and timed to meet the Aerion AS2 launch ( earlier post ).
Third-generation Subaru Boxer engine. FHI) has developed a third-generation boxer (horizontally opposed) engine—the first overall renewal for the platform in 21 years. A Boxer engine was first employed in the Subaru 1000 in 1966. The second-generation boxer engine was introduced in the first Legacy models in 1989.
MiGTDI engine. At the US Department of Energy (DOE) Annual Merit Review in Washington, DC last week, Cory Weaver from Ford Research and Advanced Engineering reported that Ford has completed the planned build of 12 units of the new engine, and is working on vehicle integration for further testing per the project timeline.
The all-new 2015 Lincoln MKC small premium utility, unveiled last week, offers an all-new engine—a 2.3-liter Ford says the engine can deliver up to 15% better fuel economy than comparable six-cylinder engines. Featuring a twin-scroll turbocharger and a three-port integrated exhaust manifold (IEM), the 2.3-liter
At the Aachen Colloquium next week, Ricardo and Geely will present research work into the application of the Ricardo Magma xEV gasoline engine concept into a commercial vehicle series hybrid powertrain, delivering 45% brake thermal efficiency. A long exhaust stroke then extracts maximum efficiency.
The US Environmental Protection Agency (EPA) is granting two waivers of preemption regarding four California Air Resource Board (CARB) regulations related to California’s heavy-duty vehicle and engine emission standards. In this instance, CARB requested two waivers for regulations relating to heavy duty vehicles and engines.
The TEG technology, which converts waste heat from gas exhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. With the addition of this project, Gentherm adds the US Army Tank Automotive, Research, Development and Engineering Center (TARDEC) to its passenger car key partners Ford and BMW.
At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). l/100 km) for a vehicle of that size.
The concept of the Ricardo Split-Cycle engine. The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. LN 2 produced using the engine (efficiency of generation is a key parameter). Source: Neville Jackson. Click to enlarge. Click to enlarge.
A discussion paper published by the United Nations Economic Commission for Europe (UNECE) asserts “ with a high degree of reliability that it is misleading to claim that people’s exposure to diesel engines of road motor vehicles is the cause of increased risk of lung cancer. ”. —“Diesel EnginesExhausts: Myths and Realities”.
the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al.
liter Duramax B20-capable diesel engine with twice the torque of either the gasoline or the bi-fuel models. Silverado 2500HD engine options. The LC8 engine. The engine. V8 engine, engine code LC8. The engine features special hardened valves and valve seats that enable it to run on CNG or gasoline.
EPA’s Office of Transportation and Air Quality (OTAQ) is soliciting proposals ( EPA-OAR-OTAQ-14-02 ) that achieve significant reductions in diesel emissions in terms of tons of pollution produced by diesel engines and diesel emissions exposure, from fleets operating at marine and inland water ports.
Although the industry has reduced its consumption of fossil fuels by a number of measures such as using increasingly thermally efficient diesel engines in recent decades, the current total fuel oil consumption is in excess of 350 million tonnes per year (about 98.5 billion gallons US).
Researchers at the US Army Research Laboratory’s (ARL) Combustion Research Laboratory are working to develop engines optimized to run on JP-8 for use in military ground vehicles, stationary power generators, and small unmanned aerial vehicles. combustion in a piston engine. cetane index of 40 that present special challenges for.
Conflicting evidence does not support making a firm conclusion on the fuel consumption benefit of catalysed Exhaust Gas Recirculation (EGR), according to a review of current studies by a team at the University of Bath (UK).
Many near-term (<10 years) efforts of industry and academia in developing more efficient, low-emitting engines are being applied to Low Temperature Combustion (LTC) strategies. Recent achievements in peak indicated thermal efficiency in diesel engines with advanced LTC modes. The leftmost bar shows conventional diesel combustion.
The Directorate for Engineering at the National Science Foundation (NSF) has established a partnership with the Vehicle Technologies Program (VTP) of the US Department of Energy (DOE) to address critical fundamental and applied research challenges associated with advanced combustion engine technologies.
A team of engineers from GM Powertrain, Ford and FCA have published a detailed review of how to estimate the engine efficiency benefits of higher octane fuel—e.g., fuel with higher ethanol content—for part- and full-load operation for different engine types and fuel assumptions.
The results of a new analysis by the International Council on Clean Transportation (ICCT) show that, when combined with a trend toward higher methane leakage and combustion slip, there is no climate benefit from using liquefied natural gas (LNG) as a marine fuel—regardless of the engine technology. First, it contains very little sulfur.
The California Air Resources Board (ARB) and the US Environmental Protection Agency (EPA) have presented preliminary proposals aimed at closing compliance loopholes for medium- and heavy-duty diesel engines using SCR-based NO x emissions control systems for 2011 and later model years. This occurs during stop-and-go traffic.
A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.
A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. Review of ethanol properties. Earlier post.) Earlier post.). (As
Co-Optima’s premise is that current fuels constrain engine design—and thus engine efficiency. Co-Optima’s premise is that current fuels constrain engine design—and thus engine efficiency. The teams are also evaluating the impact of discrete fuel properties on advanced SI engine performance.
Long Beach Transit (LBT) recently received a $600,000 grant from the Mobile Source Air Pollution Reduction Review Committee (MSRC) of the South Coast Air Quality Management District Near Zero Incentive Program for the purchase of 40 Cummins “near-zero” compressed natural gas (CNG) engines. Earlier post.)
A scientific review of research regarding the safety aspects of the use of refrigerant R1234yf in Mobile Air Conditioning (MAC) systems, published by the European Commission, concludes that there is no evidence of a serious risk in the use of this refrigerant in MAC systems under normal and foreseeable conditions of use.
Researchers at Oak Ridge National Laboratory (ORNL) are investigating mechanisms for extending the efficiency of combustion engines closer to their theoretical potential. Stuart Daw in a presentation at the recent DOE merit review meetings in Washington, DC. as in Stirling engines) to minimize the temperature gradient.
Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle. —Gentherm President and CEO Daniel R.
The National Academies have released a third review of the 21 st Century Truck Partnership (21CTP); the review follows the Phase 1 and Phase 2 reviews by the National Research Council in 2008 and 2012 ( earlier post ) and assesses the progress the partnership has made. A pathway to achieve 55% is being developed.
In California, Big Blue Bus (BBB) will receive $870,000 from the Mobile Source Air Pollution Reduction Review Committee’s (MSRC) Near Zero Engine Incentive Program. NO x engines. The new engines will be installed over a period of 3 to 4 years, at a rate of 12 to 18 buses per year. ISL G Near-Zero (NZ) 0.02 Earlier post.).
When it comes to your ICE vehicle, you want it to be running at its best, and that includes having the right exhaust system. Here are five tips to help you pick the right exhaust system: Exhaust for good looks & performance. Start by reading online reviews and talking to fellow car enthusiasts. Consider Your Budget.
The Mercedes-Benz G-Wagen is a monster of an off-roader, in part because of the G63 AMG variant that belts out an earth-shaking turbocharged V8 note from its side exit exhausts. seconds The post 2025 Mercedes-Benz G580 Review: Off-road quad-motor EV is incredibly capable appeared first on EV Central.
The main cause for the higher on-road values is that the exhaust gas recirculation (EGR) is in some cases practically switched off under certain conditions, DUH said. This full-bodied promise is in clear contradiction to the results of the exhaust and software investigations of the BMW 320d, DUH charged.
SAIC and its partners will use the new capabilities for driving engine cam systems to make precise laser measurements of valve displacement, spring displacement, and motion of other valve train components in the engine head as the cams are spinning.
Ricardo and Korea-based Doosan Infracore presented details of the latest DL06 engine at the 22 nd Aachen Colloquium on automobile and engine technology in Germany. The Doosan DL06 engine is a turbocharged and intercooled 5.9-liter, liter, in-line 6-cylinder diesel engine used in both on-highway and off-highway applications.
diesel from GM’s European lineup (the engine is manufactured in Kaiserslautern, Germany) to challenge Jetta on the basis of highway fuel economy and power, as well as content. Diesel engine. The engine features quiet belt-driven cams/valvetrain with high-strength belt material and tensioner rated for 100,000 miles. Earlier post.)
The updated rule adds new vessel categories which will be required to control pollution when they run auxiliary engines or auxiliary boilers (for most tanker vessels) while docked. These auxiliary engines power the electricity and other onboard operations during a vessel’s visit, which can run from less than one day to several days.
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