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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.
At the 17 th Supercharging conference this week in Dresden, Controlled Power Technologies (CPT) will launch what it says is the first water-cooled electric supercharger developed for “quasi-continuous” boosting of commercial diesel engines, including those developed for off highway applications. Cobra electric supercharger. Click to enlarge.
Schematic diagram of the successful “shoebox” reformer design and a picture of the core, after insertion of the catalyst. A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. Credit: ACS, Sall et al.
Achates Power will begin the study and design of the initial tactical vehicle concept engine and has selected Southwest Research Institute (SwRI) to contribute its expertise in advanced materials to reduce heat rejection and improve power density and efficiency. The variable flow lube pump helps maintain engine efficiency.
The Shanghai Merchant Ship Design & Research Institute (SDARI) and development partners DNV and Wärtsilä have unveiled a new Handysize—i.e., ships with a cargo-carrying capability of less than 60,000 metric tonnes—bulk carrier concept design: the Green Dolphin. Draught, design. Speed at design draught.
With SCR twin dosing technology in the exhaust gas system, the diesel unit now undercuts the Euro 6d emission standard limits while also running quietly and smoothly, according to the company. The four-cylinder TDI engine with the internal designation EA 288 made its debut in 2012. As previously, the 2.0
Alfa Laval offers a range of oil-fired and oil and exhaust gas-fired boilers for ships. Top-fired and available in two different design pressures, the Aalborg OL is a vertical, two-drum cylindrical boiler. Results from field testing will be crucial in fine-tuning the methanol boiler solution and arriving at a commercial design.
GE Aviation has completed the initial design of the first supersonic engine purpose-built for business jets. It is designed to enable efficient supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing compliance regulations. AS2 supersonic business jet.
With the water-cooled intercooler keeping turbo temperatures down, the V6 engine improves on the outgoing V8 engine in every way. The exhaust valves’ shape has also been optimized to enhance cooling performance. The system operates on Tundra models via newly designed touchscreens and features an all-new Human Machine Interface (HMI).
liter EcoBoost is the first engine from Ford to incorporate a computer-controlled clutch on the belt-drive water pump, which further improves efficiencies by reducing warm-up time. A water-cooled charge air cooler is added to offer a more efficient feed of air into the engine. liter EcoBoost such as an integrated exhaust manifold.
Key advances for Gen 3 are in weight reduction, friction reduction, and the internal exhaust cooling system. Like its predecessor, the engine has a cast-iron cylinder block and an aluminum-alloy cylinder head which now has the exhaust headers cast integrally. Integrated exhaust manifold with cooling. Click to enlarge.
has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new Exhaust Gas Recirculation (EGR) system; a new intake manifold; a new cylinder head; a new cylinder block; a new balancer shaft unit; and a new Engine Control Module (ECM). Water-cooled turbo.
The EPFL system captures CO 2 directly in the trucks’ exhaust system and liquefies it in a box on the vehicle’s roof. First, the vehicle’s flue gases in the exhaust pipe are cooled down and the water is separated from the gases. Researchers at EPFL have patented a new concept that could cut trucks’ CO 2 emissions by almost 90%.
Rolls-Royce and Canadian vessel designers Robert Allan have developed the world’s first shallow-water push boat powered by LNG natural gas engines. At the International Workboat Show in New Orleans, classification society DNV GL gave its “Approval in Principle” to the new design.
In a typical ORC design, a thermal energy source feeds an evaporator to drive an expander or “reverse compressor”, which in turn generates the electricity. These include exhaust gas waste heat, which accounts for 50% of the energy from combusted fuel, but also liquid sources at lower temperatures, such as engine jacket water.
Two basic design approaches have emerged: the first is a structure with two opposed combustion chambers; the second, a structure with one combustion chamber and one gas spring chamber. Poppet valves seated in a water-cooled cylinder head were actuated by hydraulic valve trains to control exhaust valve timing. Click to enlarge.
A cooled Exhaust-Gas Recirculation (EGR) system improves efficiency in the high-expansion-ratio Atkinson cycle engine. Also contributing to increased engine efficiency is a battery-powered water pump, a friction-reducing beltless design and precise coolant-water-flow volume control. Combined maximum output. 73 kW (98 hp).
The advanced design places the exhaust inside the engine’s V-shape while the air intake is positioned on the outside of the V. This segment-exclusive design naturally improves a variety of attributes: Shorter airflow from the exhaust system to the turbocharger sitting between the engine’s cylinder banks improves turbo responsiveness.
This means that the turbocharger and the exhaust manifold are now positioned at the rear, on the side of the firewall when viewed from behind. This configuration allows the flattest possible and aerodynamically advantageous front section design. Fresh air is used in addition to oil and water to cool the turbocharger.
In regards to the engine technologies for HVs, the Atkinson cycle, cooled EGR, electric water pump and low friction technology play an important role for enhancing the engine thermal efficiency. 1 and water-cooled EGR. To address this, at low load, Exhaust VVT is advanced and internal EGR is used. Yamada et al. Earlier post.)
This powerplant shares only the bore spacing with the previous diesel engine that had the same designation. The engineers integrated the oil and vacuum pump in one module; it is designed as a compact dual pump. With the small circuit, the water warms up very quickly. Exhaust gas aftertreatment module close to engine.
The fourth stroke omits the conventional exhaust event in order to recompress the combustion gases. This approach differs from the traditional 6-stroke approach in which water is injected into the cylinder after recompression to extract additional expansion work from the hot combustion products, the team noted.
The vehicle meets Euro 6 exhaust standards. Both the exhaust inflow to drive the turbos and the supply of fresh air, plus the channelling of compressed air to the combustion chambers, have been designed to ensure that the three compression units work as a team as effectively as possible at all engine speeds. Click to enlarge.
Bosch is developing a water injection (WI) system for spark ignition engines in partnership with a pilot customer, said Dr. Rolf Bulander, member of the board of management of Robert Bosch GmbH and chairman of the Mobility Solutions business sector, in his talk on powertrain optimization at the Vienna Motor Symposium. Click to enlarge.
Responsible use of water resources is a particular sustainability goal in San Luis Potosí. The facility will have the lowest water consumption per vehicle produced in the production network. The water needed for the painting process is reconditioned and recycled.
An integrated exhaust manifold that is part of the cylinder head assembly and recovers exhaust heat for faster engine and transmission warmup, with quicker turbo response. An electric water pump that eliminates the drag of a conventional, engine-driven pump to enhance efficiency. inches (102 mm). All elements of the 2.7L
building HVAC exhaust) and from natural fluids (e.g., the ocean and surface waters) that received their CO 2 directly from ambient air. ambient air, ocean and surface waters) and accelerate science-based synthesis and assembly of transformative materials with multiple properties designed for this purpose.
liter engine is designed to be utilized in both MQB (transverse) and MLB (longitudinal) architectures within the larger Volkswagen Group. The exhaust-turbocharged V6 will come in two versions: 160 kW (218 hp) and 200 kW (272 hp). Integration of the new exhaust aftertreatment unit. Audi presented the latest generation of its 3.0
Extensive modifications to the drive, chassis, design and equipment will provide the hallmark AMG driving experience with all-electric drive. The power of the electric motor is applied immediately with full torque, a characteristic of the design. The system is designed to ensure even heat distribution in the battery.
Individualized spray cone angle technology compensates the natural nozzle offset inherent in eight-valve engines due to the asymmetry of the intake and exhaust valves. Cold-loop Exhaust Gas Recirculation (low-pressure EGR) recovers exhaust gases further downstream than a conventional EGR system. Click to enlarge. Energy dCi 130.
In the previous model, some of the gasoline engines were mounted with a forward tilt of 10 degrees, and their exhaust side faced the radiator grille, while the exhaust side of the TDI engine faced the bulkhead. mm) is an entirely new engineering development that was systematically designed for low efficiency losses.
The LT1 camshaft design is based on the LS3’s cam tuning (14mm gross intake lift) and offers 62 crank degrees of cam phasing authority. The LT1 head features smaller combustion chambers designed to complement the volume of the unique topography of the pistons’ heads. The deep-skirt design helps maximize strength and minimize vibration.
Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system. Overall, the engine offered a 13.1%
HEHC is an improved thermodynamic cycle optimized for fuel efficiency that combines features of four existing cycles: high compression ratio (Diesel); constant volume (isochoric) combustion (Otto); over-expansion to atmospheric pressure (Atkinson); and internal cooling with air or water (Rankine). it looks like this is the one for us.
Southwest Research Institute (SwRI) is helping a client develop a simple post-refinery treatment process that reduces exhaust emissions from diesel engines by overcoming the soot/nitrogen oxides (NO x ) reduction trade-off that has plagued engine researchers for decades.
An eight-speed automatic transmission is standard and is designed to handle the increased torque output. FCA US engineers adapted the engine—designed and manufactured by FCA EMEA —to meet the NAFTA region’s regulatory requirements. Body-on-frame design. Transmissions. 1 first gear ratio coupled with a 4.1:1
Initially this was through evolution and optimization of the control systems, improvements in the oil and cooling designs, turbocharging technology and more effective injection and combustion processes. Each system has a dedicated water pump, allowing optimized individual control.
Techrules, a China-based automotive R&D company ( earlier post ) is unveiling the final production design of its Ren RS series-hybrid supercar at the 2018 Geneva Motor Show. The modular chassis design permits a variety of powertrain configurations to provide the range and performance capabilities required by the customer.
of hydrogen is currently produced via water electrolysis and only a fraction of this production is powered by renewable energy. There is no immediate concern for copper resources, but the average ore grade is declining as higher grade deposits become exhausted. According to the IEA, less than 0.1%
Key elements in the performance of the engine are the newly-designed combustion chamber; the re-profiled intake ports; and the new fuel injection system with 2,000 bar and up to 10 injections per cylinder cycle. The VGT and exhaust gas recirculation (EGR) module have been designed as a single system for optimal efficiency.
To help meet that design target, Toyota engineers focused on making the hybrid system more compact and lighter in weight—the Prius c hybrid system is 14% lighter than that of the current Prius Liftback. This improves torque in all engine speed ranges as well as increasing fuel economy, and reducing exhaust emissions.
When designing commercial vehicles with a fuel cell drive, the high hydrogen storage pressures of around 700 bar are not the only challenge. The water balance of a polymer electrolyte fuel cell significantly affects efficiency and service life. As a result, the charge air coolers used must be resistant to ionized water.
Pierburg GmbH, a member of the KSPG Group, has been awarded contracts worth a lifetime total of €250 million (US$342 million) for a newly developed compact exhaust-gas recirculation valve. Ordered by European and North American automakers, the valve will be installed in engines designed to comply with the Euro 6 emission norm.
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