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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.
Schematic model of a wave disk engine, showing combustion and shockwaves within the channels. The wave disc engine, a new implementation of wave rotor technology, was earlier developed by the Michigan State group in collaboration with researchers from the Warsaw Institute of Technology. The Wave Disc Engine. Source: MSU.
Southwest Research Institute (SwRI) has built a demonstrator vehicle, based on a 2012 Buick Regal GS, incorporating the latest D-EGR (dedicated EGR) technology ( earlier post ), an outgrowth of SwRI’s HEDGE (High Efficiency Dilute Gasoline Engine) consortium projects ( earlier post ). The compression ratio of the engine was increased to 11.7:1
Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Nanostellar was founded in California in 2004 by scientists from Stanford University and NASA Ames Research Center. Kyeongjae Cho. CO 2 + 2NO, NO 2 + C?CO
will publicly reveal the architecture of its High Efficiency Hybrid Cycle (HEHC) engine. The paper describes LiquidPiston’s third-generation engine prototype, which was first test-fired in January 2010. It provides an air-standard analysis of efficiency, including a comparison to conventional engine technologies. Earlier post.)
L engines at idle. L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L/2004 calibration engines. Emission rates for the 1.7
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004engines.
Fairbanks Morse Model 38 opposed-piston engine. The leading manufacturer of opposed-piston engines, Fairbanks Morse Engine (FME), an EnPro Industries company, has signed a joint development and licensing agreement with Achates Power, Inc., Click to enlarge. while meeting the most stringent, global vehicle emissions standards.
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.
Ricardo is exploring the value proposition for applications of its novel split-cycle combustion engine ( earlier post ). Ricardo, in collaboration with the University of Brighton, has been developing the split-cycle engine with an eye toward improving the thermal efficiency of heavy-duty engines. Gurr (2016). Click to enlarge.
Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. liter OM651 Euro 5 engine, said Fabien Redon VP, Technology Development at Achates Power, the OP4 design shows a modeled 13.5%
The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. While properly engineered conversion systems can reduce or at least not increase emissions, poorly designed systems can lead to much more pollution. Vehicle/Engine Age.
A team from the California Air Resources Board (ARB) reports on their evaluation of the in-use emissions performance of four different heavy-duty diesel engines certified to the MY 2010 or interim MY 2010 NO x standards over a wide range of driving conditions in California in a paper published in the ACS journal Environmental Science & Technology.
Achates Power, the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has been selected by APRA-E under its OPEN 2015 solicitation ( earlier post ) for an award of more than $9 million to develop a multi-cylinder opposed piston engine operating with compression ignition that uses gasoline as the fuel.
systems that alter a conventionally-fueled vehicle or engine to enable it to run on an alternative fuel. The updated final rule covers alternative fuel conversion of light-duty vehicles and heavy-duty highway vehicles and engines. The revised procedures will vary based on the age of the vehicle or engine being converted.
Even a highly efficient combustion engine converts only about one-third of the energy in the fuel into traction actually propelling the car. The remaining two-thirds are lost as waste heat going into the environment through the car’s exhaust emissions and through the radiator. Encapsulating the engine for heat retention.
Scania’s ethanol bus features a modified diesel engine running on a mixture of 95% ethanol with 5% ignition improver. The buses that were just ordered will be equipped with third-generation Scania ethanol engines. The order from Busslink is Scania Sverige’s largest single bus transaction in the Swedish market since 2004.
liter gasoline engine designed for the North American market that features direct injection (DI) and Twin Independent Variable Camshaft Timing (Ti-VCT) for enhanced performance and fuel efficiency. liter Ti-VCT engine and PowerShift dual-clutch transmission for the North American market will not be marketed in Europe. Earlier post.).
Initial test results of the transient control and exhaust temperature management capability of Achates Power’s opposed piston (OP) two-stroke diesel engine show that under a typical transient maneuver—25% to 100% load step at low and constant engine speed—the engine can control both NO x and soot with a minimal torque lag.
Achates Power will work with Delphi Automotive and Argonne National Laboratory on its ARPA-E-funded project to develop an innovative opposed-piston, gasoline compression ignition (OPGCI) engine. Conceptual image of a possible multi-cylinder OPGCI engine. It could also be the first of a family of OPGCI engines spanning 1.0
liter Power Stroke engine in its F-250 and F-350 models uses Honeywell’s VNT DualBoost turbocharger, a design that uses a double-sided compressor wheel mounted on a single shaft. In addition to DualBoost, Honeywell also offers AVNT, a variable nozzle technology that was first introduced for light truck diesel engines in 2001.
The smaller size enables better heat management and retention for improved fuel economy capability, while the simple single-pass exhaust flow design delivers low back pressure, meeting the needs of end-user customers. Since 2004, more than 1 million EcoFit DPFs have been put into use. EcoFit Selective Catalytic Reduction Systems.
With a 16-year absence from the LMP1 class, Porsche engineers have had to develop the racecar without the same experience of their competitors. The V4 gasoline engine with direct injection and turbocharging is integrated in the chassis as a mid-engine. liter V-4 gasoline engine that is compact and lightweight.
As part of an aggressive deployment strategy for improving fuel efficiency across its product line-up in the near-to medium-term, Ford will offer its first-generation turbocharged, gasoline direct-injection EcoBoost engines ( earlier post ) in 90% of its product lineup by 2013. 6-speed and dual clutch), but especially EcoBoost, Kapp said.
Brake specific fuel consumption map for the LD Achates opposed-piston engine. The map is extremely flat, with the engine’s high efficiency extending to low loads. Founded in 2004, Achates Power is designing and developing engines based on a two-stroke, opposed-piston, compression-ignition technology. Click to enlarge.
In December 1998, ARB adopted amendments to the California On-Road Motorcycle Regulations that added control of NO x for Class 3 motorcycles to the original 1975 regulations for all motorcycles with engine displacements of at least 50 cubic centimeters (cc). g/km, depending on-engine size, and CO was set at 17.0 g/km to 14.0
Of that 10% improvement, about 6% can be attributed to the new hybrid system (including the larger combustion engine) and about 4% to efficiency improvements in other aspects of the vehicle, such as better aerodynamics, said Chief Engineer Akihiko Otsuka. Atkinson cycle engine. DOHC 16-valve VVT-i engine.
Diesel exhaust contains a variety of harmful gases and more than 40 other known cancer-causing substances. Other sources of diesel particulate matter such as big rig trucks, transit buses, trash trucks, cargo-handling equipment and ship auxiliary engines have already been addressed through regulations, along with diesel fuel.
It was easy to make fun of Dodge and the “fake” exhaust it chose to employ on the new Charger EV, but it’s no longer the only one trying to capture the thrill of a performance gas engine with a silent electric powertrain underneath. Cadillac currently sells two EVs, the Lyriq SUV and the Celestiq sedan.
Due to the unit’s high efficiency, CO 2 emissions are substantially lower than in conventional combustion engines, and no other demonstrable exhaust is discharged—i.e., 2004) High-Performance Solid Acid Fuel Cells Through Humidity Stabilization. The reformer converts hydrocarbons into hydrogen, CO 2 and heat. Boysen et al.
During the SAE 2009 World Congress in Detroit, Gary Kissel of General Motors presented an update of hybrid, plug-in hybrid, and electric vehicle standards being revised or developed by the Society of Automotive Engineers (SAE) Hybrid Standards Committee. Many of these are scheduled for completion this year.
Between 1997 and 2004, meetings were held at senior manager level, sometimes at the margins of trade fairs or other events. From 2004 onwards, the cartel was organized via the truck producers’ German subsidiaries, with participants generally exchanging information electronically. This was complemented by phone conversations.
The stunning Ford GT—which received the EyesOn Design Award at NAIAS for best production vehicle—serves as a technology showcase for top EcoBoost engine performance, aerodynamics and lightweight carbon fiber construction. Ford has been selling hybrids and, later plug-ins, since 2004. —Raj Nair. —Raj Nair.
The Q7 e-tron quattro features a six-cylinder TDI engine and quattro drive that deliver 275 kW (373 hp) of system power and 700 N·m (516.3 litre V6 TDI engine. litre V6 TDI engine. TDI, a highly efficient, latest-generation V6 diesel engine, delivers 190 kW (258 hp) of power and 600 N·m (442.5 TDI quattro.
The Manchester team is now proposing that the graphene-based ballistic rectifier can convert waste from engineexhaust into a useable electrical current to power additional automotive features such as air conditioning and power steering, or be stored in the car battery. Singh et al. Manchester University. Click to enlarge.
from engineexhaust or industrial processes. Thermionic energy converters are heat engines that convert heat directly to electricity at very high temperatures. Thermionic emission and TICs. 1 ), and excellent conductivity.
The order is Scania Sverige’s largest single bus transaction in the market since 2004 and represents a continued commitment to ethanol power. The ethanol bus includes a modified diesel engine that runs on a mixture of 95 per cent ethanol and five per cent ignition improver.
litre engine reduces the rpm during high-speed driving to give a 10 per cent gain in long-haul cruising fuel efficiency. And with more torque produced at lower engine speeds, new Prius offers more relaxed cruising performance, too. And when operating in EV mode at speeds up to 30mph, it uses no fuel and produces zero exhaust emissions.
The following lists are not exhaustive or fully comprehensive, but we have tried to include a representative list of resources for each category. Romm, 2004 "Out of Gas, The End of the Age of Oil", by David Goodstein, 2004 "Hubbert's Peak: The Impending World Oil Shortage", by Kenneth S. htm Advocates of the Th!
Achates Power says that its 2-stroke OP engine offers higher best point brake thermal efficiency than diesel or gasoline engines. In December 2012, the US Army Tank Automotive Research, Development and Engineering Center (TARDEC) awarded Achates Power, Inc., brake thermal efficiency with its OP engine. Click to enlarge.
Preliminary results from vehicle simulations conducted on a Scuderi split-cycle engine at Southwest Research Institute (SwRI) show that a base, naturally aspirated Scuderi engine (four cylinders—i.e., When we ran these simulation, the mapping for our engine was not totally complete. We will gain further.
The first such vehicles were introduced by Volkswagen in 2003, and by 2004, they accounted for more than 17% of the Brazilian auto market. Experiments have even shown that the evaporation of the water in the intake manifold acts as a charge air cooling, which improves the volumetric efficiency and thereby the overall efficiency of the engine.
As the next steps in a strategy to cut harmful emissions from ocean-going vessels, the US Environmental Protection Agency is proposing new engine emissions and fuel standards for large marine diesel engines on US-flagged ships that would harmonize with international standards. EPA’s proposed rulemaking affects the Category 3 engines.
3B engine maintains the displacement of the 2.0L TFSI turbocharged gasoline direct injection engine introduced at the Vienna Motor Symposium last week is the first of the company’s EA888 Gen.3B TFSI turbocharged gasoline direct injection engine introduced at the Vienna Motor Symposium last week is the first of the company’s EA888 Gen.3B
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