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The new VW Golf is now also available in certain markets with natural gas drive: the Golf TGI is equipped with a 1.5-liter liter four-cylinder engine with 96 kW / 130 PS and three natural gas fuel tanks. The tanks are integrated into the underbody and permit a range of around 400 kilometers (WLTP) in pure natural gas mode.
IAV has developed a particularly closed-coupled diesel exhaustgas aftertreatment (EAT) system. A key contribution to this performance must come from the exhaustgas aftertreatment system—across the entire speed and load range. This way, exhaustgas flows through DOC and SCRF before it enters the turbine.
Intelligent Power Generation (IPG) will demonstrate the impact of Flameless Ceramic Turbine technology in UK electric vehicle (EV) charging infrastructure, following a £1-million contract from Highways England. IPG‘s flameless combustor uses the turbine exhaust and high heat transfer effectiveness through the IPG regenerator unit.
Relative (percent) CO 2 emissions benefit of the new natural gas variant as compared to the 220 kW diesel engine. Among its trucks on display at the upcoming IAA in Hanover, Mercedes-Benz will showcase an Econic equipped with its new Euro VI medium-duty natural gas engine (M 936NGT), which is derived from the 7.7-liter Benz et al.
liter diesel, prominently showing the closely attached exhaust aftertreatment system. The MQB allows the integration of alternatives, for example, natural gas, hybrid and electric drives, in addition to the conventional gasoline and diesel power units. The cylinder head intake and exhaust valves are arranged one behind the other.
An electrically driven compressor for precise exhaustgas recirculation is also used. Then we modify the timing and pressure of the injection, among other things, and look at exhaust emission values and fuel consumption. This is done via exhaustgas recirculation (EGR). —Patrik Soltic.
Toyota’s FPEG features a hollow step-shaped piston, combustion chamber and gas spring chamber. The FPEG consists of a two-stroke combustion chamber, a linear generator and a gas spring chamber. The smaller-diameter side of the piston constitutes a combustion chamber, and the larger-diameter side constitutes a gas spring chamber.
Researchers at the University of Wisconsin-Madison have used computational fluid dynamics modeling to investigate cycle-to-cycle instability of homogeneous charge compression ignition (HCCI) and reactivity-controlled compression ignition (RCCI) engines—two approaches to low-temperature combustion.
Since the pistons cyclically expose or occlude the exhaust and intake ports, there is no valve train. Because the intake and exhaust ports are at the opposite ends of the cylinder, opposed-piston engines have efficient, uniflow scavenging. Full-load CFD simulation results of in-cylinder gas exchange. are not required.
unveiled the first generation of its new, proprietary enhanced spark-ignited (ESI) natural gas system. Using 100% dedicated natural gas as fuel, Westport’s new technology optimizes the combustion and thermal efficiencies of the engine by taking advantages of the positive properties of natural gas. mono-fuel gas engine.
Honda is developing a Homogeneous Lean Charge Spark Ignition (HLSI) combustion engine as one of the key elements in its technology roadmap for a higher thermal efficiency gasoline engine. Homogeneous lean premixed gas is known to have poor flame propagation characteristics. Automobile R&D Center. Click to enlarge.
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.
Wear and tear from brakes, tires and road surfaces will soon overtake car exhaust fumes as the leading source of fine particles released into the air by road traffic, according to a new OECD report. Heavy electric vehicles with long-distance batteries could compound the problem even as they slash emissions from engine exhaust.
The exclusive vehicle architecture also offers the additional benefits of all-electric driving and external charging at a wall box, public charging station or household socket. C), no matter how often it is charged or discharged. In addition, the power otherwise lost during braking can be used to charge the battery.
A mass spectrometer identifies a molecule by analyzing its mass-to-charge ratio, detecting chemicals invisible to other instruments. The combination of technologies provides simultaneous FTIR and mass spectrometry data, allowing accurate and rapid identification of exhaust stream components.
The electric biturbo system comprises a classic exhaust turbocharger (mono- or bi-turbo) working together with a supplemental, electric-powered compressor arranged in series and powered by a separate 48-volt electrical system. Note the position of the single exhaustgas turbocharger and the electrically driven compressor.
Starting from a energy-based powertrain simulation model validated on experimental data from the PHEV, the researchers conducted a first- and second-law analysis to identify the potential for engine waste heat recovery, considering a variety of driving cycles and assuming the vehicle operating in charge-sustaining (HEV) mode. Skarke et al.
The selected projects will focus on reducing the total cost of ownership of NGVs, increasing vehicle efficiency, decreasing local air pollution, and advancing technology development to increase the use of more affordable medium- and heavy-duty natural gas engines and vehicles. Cummins Inc. CNG Full Fills with a Complete Smart Fueling System.
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. The turbocharger was redesigned for the use of low-pressure exhaustgas recirculation. Click to enlarge.
When fuel is injected into the ports on a conventional rotary engine, a lot of the air-fuel mixture ends up at the back of the combustion chamber, not fully combusting and eventually being expelled as unburned gas. The engine also adopts an exhaustgas recirculation (EGR) system to improve fuel efficiency. Drive modes.
has several new parts, including a new water-cooled variable-geometry turbocharger; a new high-pressure common-rail fuel delivery system; a new ExhaustGas 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). Cylinder head.
For work at high altitudes, on the other hand, the MAN engineers had to redesign the behavior of the charge air components to the thinner air at high altitudes. Equipped with the latest exhaust technologies, the MAN D3876 complies with the current and strict EU Stage V emission regulations.
The editorial addresses important issues in the current politically charged discussions of global warming and climate-change alarm. … This could be paired with combustion technologies with highly diluted combustion (stoichiometric with exhaustgas recirculation (EGR) as well as lean burn with excess-air ratios above 2).
Fitted with a small fixed-geometry turbocharger, a variable-displacement oil pump and smart charge alternator, the 105 HP 1.6 The exhaustgas treatment system implements close-coupled DPF technology which integrates the oxidizing catalytic converter and the particulate trap (CCDPF).
The world’s first high-heat plastic air intake manifold (AIM) with integrated charge air cooler (CAC) in Stanyl Diablo, Royal DSM’s high-temperature-resistant polyamide 46, recently went into production on a recently introduced hybrid sports car—by its description (although not by confirmation from DSM) the BMW i8 ( earlier post ).
The engines are IMO Tier III-certified and equipped with a Selective Catalytic Reduction exhaustgas aftertreatment system. A proven V12 marine engine is thus used in which hydrogen is introduced into the charge air via an adapter and is added to the combustion cycle. 5% of diesel fuel.
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. The camshaft design alters the lift of the intake and exhaust valves. —Tom Sutter, chief engineer for the 2.7L
liter midrange, factory-built natural gas engine is now fully available as a production engine for shuttle bus, medium duty truck, and vocational applications in North America. An engine of this size is a natural addition to CWI’s portfolio of natural gas engines. Cummins Westport’s ISB6.7 Earlier post.) The ISB6.7 The ISB6.7
Common Rail injection reduces the generation of particles, while exhaust-gas recirculation (EGR) reduces NO x. This improves the exhaustgas values across a wide speed range. The low-temperature cooling system with its own dedicated circuit makes charge-air cooling more effective in the Euro 6 version. MAN TGM CNG.
The Los Angeles Metro Board of Directors approved a plan last week to begin charging solo motorists in designated clean air vehicles (CAVs) a discounted toll to use the ExpressLanes on the 10 and 110 freeways, beginning in late 2018.
The Chanje electric medium duty panel van van is equipped to haul up to 6,000 pounds and up to 675 cubic feet of cargo, all with zero vehicle exhaust emissions and up to 150-mile range on a single charge. kW onboard charger supports Level 2 and DC fast charging. The V8100’s 13.2
Volkswagen’s view of powertrain technologies to minimize greenhouse gas emissions. The high performance diesel engine features a variable valve-train assembly, a high-pressure injection system at up to 3,000 bar and combined charging with an innovative e-booster. Volkswagen also sees great potential for natural gas drive systems.
This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Even with the move to four-stroke engines, additional complexity will be necessary—possibly exhaust after-treatment—in order to fully meet regulations.
The third circuit cools the charge air for more efficient combustion. The charge air intercooler is integrated into the intake manifold. Charge air cooling. The charge air intercooler is integrated into the intake manifold; the intercooler is very compact because it is water-cooled. warming if necessary. Click to enlarge.
The theoretical design lays out methods for rapidly spinning the gas inside engine cylinders. An exhaust valve is configured to exhaust combustion products from the main working chamber. The spinning gas also modifies the standard internal combustion engine design. —Vasily Geyko. —Vasily Geyko.
As a fuel that does not emit carbon dioxide when burned, ammonia is expected to offer advantages in reducing greenhouse gas emissions. JERA is in charge of ammonia procurement and construction of related facilities such as the storage tank and vaporizer, while IHI’s role is to develop the burners to be used in the demonstration.
Higher-efficiency, down-sized, turbo-charged engines are already significantly increasing temperatures. Projected conditions for internal combustion engines in 2025 push light-duty engine exhaust temperatures into the low end of gas turbine regimes, Haynes said. Materials for exhaust and energy recovery.
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 exhaustgas recirculation (EGR) system all contribute to the engine’s high thermal efficiency and outstanding fuel economy.
The device is essentially a large, specialized battery that absorbs carbon dioxide from the air (or other gas stream) passing over its electrodes as it is being charged up, and then releases the gas as it is being discharged. The captured gas is then released from the plates and joins the stream.
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. Furthermore, the new arrangement allows much improved air ducting with shorter distances and fewer diversions - both on the intake and exhaust side. Electronic charge pressure control.
On the other hand, however, the lower exhaustgas temperatures result in a lack of energy for their propulsion on the exhaust side. Their approach was to keep the level of raw emissions low by means of extremely lean and therefore colder combustion, making it possible to dispense with an exhaust aftertreatment system.
Under this same operating condition with stoichiometric engine exhaust (and no reforming), they could only sustain stable combustion with EGR under 25%. D-EGR uses fuel-rich combustion in one cylinder and recirculates its exhaust to the intake system, generating brake thermal efficiency as high as 42.5% —Jim Szybist, ORNL.
million), uses an exhaust manifold integrated turbocharger with twin scroll, air-guided intercooler, direct fuel injection system and dual CVVT, while a bed plate and a serpentine auxiliary belt were adopted to enhance engine reliability. Very nice animation of combustion and gas flows. The Gamma 1.6-liter billion won (US$69.5
Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. The two overhead camshafts actuate 16 intake and exhaust valves. with a variable delivery rate.
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