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Viewing 1 to 30 of 46
2015-04-14
Journal Article
2015-01-0982
Brandon D. Biller, Philip Wetzel, Pavan Chandras, Sean Keidel
Abstract Several diesel passenger car boosting systems were studied to assess their impact on vehicle performance and fuel economy. A baseline 1.5L diesel engine model with a single VGT turbocharger was obtained through Gamma Technologies' fast running model library. This model was modified to explore multiple two stage boosting systems to represent the anticipated architecture of future engines. A series sequential turbocharged configuration and a series turbocharger-supercharger configuration were evaluated. The torque curves were increased from that of the original engine model to take advantage of the increased performance offered by two stage boosting. The peak cylinder pressure for all models was limited to 180 bar. Drive cycle analysis over the WLTP was performed using these engine architectures, while assessing the sensitivity to various system parameters.
2015-04-14
Technical Paper
2015-01-0458
Subrata Sarkar, Sudarshan Kumar, Atul Singhal, Surbhi Kohli, Kailash Golecha, Jubin George
Abstract The objective of this paper is to provide a robust design solution for a Jet pump which is used for fuel removal from an Active Drain Liquid Trap (ADLT). This jet pump can work for both Gasoline and Diesel based automobiles. The major focus area of this paper, is improvement in the robustness of Jet pump performance parameters, such as motive flow and induced flow. A design study for such a two fuel application was first initiated using Taguchi's robust design approach. In order to reduce the inventory complexity and cost, a common design possibility was then addressed. Two approaches for robust design have been discussed, namely the Taguchi Methodology (Orthogonal Cross Array based design) and the Dual RSM (Response Surface Methodology) Technique. Results show that the Dual RSM provides improved performance with reduced variation, as compared to Taguchi's approach.
2017-06-05
Technical Paper
2017-01-1818
Ramya Teja, T. R. Milind, Rodney C. Glover, Sunil Sonawane
Abstract Helical gears are commonly used instead of spur gears due to their potential higher load carrying capacity, efficiency and lower noise. Transmission Error (TE) is defined as deviation from perfect motion transfer by a gear pair. TE is dominant source of gear whine noise and hence gears pairs are generally analyzed and designed for low TE. In the process of designing helical gears for lower TE, the shuttling moment can become a significant excitation source. Shuttling moment is caused due to shifting of the centroid of tooth normal force back and forth across the lead. The amount of shuttling force or moment is produced by combination of design parameters, misalignment and manufacturing errors. Limited details are available on this excitation and its effect on overall noise radiated from gear box or transmission at its gear mesh frequency and harmonics.
2017-06-05
Technical Paper
2017-01-1790
Vinayak H. Patil, Ravi Kumar Sara, T. R. Milind, Rodney C. Glover
Abstract Vehicle noise emission requirements are becoming more stringent each passing year. Pass-by noise requirement for passenger vehicles is now 74 dB (A) in some parts of the world. The common focus areas for noise treatment in the vehicle are primarily on three sub-systems i.e., engine compartment, exhaust systems and power train systems. Down- sizing and down- speeding of engines, without compromising on power output, has meant use of boosting technologies that have produced challenges in order to design low-noise intake systems which minimize losses and also meet today’s vehicle emission regulations. In a boosted system, there are a variety of potential noise sources in the intake system. Thus an understanding of the noise source strength in each component of the intake system is needed. One such boosting system consists of Turbo-Super configuration with various components, including an air box, supercharger, an outlet manifold, and an intercooler.
2015-09-29
Technical Paper
2015-01-2816
Andrei Radulescu, Leighton Roberts, Eric Yankovic
Cylinder deactivation (CDA) is an effective method to adjust the engine displacement for maximum output and improve fuel economy by adjusting the number of active cylinders in combustion engines. A Switching Roller Finger Follower (SRFF) is an economic solution for CDA that minimizes changes and preserves the overall width, height, or length of Dual Overhead Cam (DOHC) engines. The CDA SRFF provides the flexibility of either transferring or suppressing the camshaft movement to the valves influencing the engine performance and fuel economy by reducing the pumping losses. This paper addresses the performance and durability of the CDA SRFF system to meet the reliability for gasoline passenger car engines. Extensive tests were conducted to demonstrate the dynamic stability at high engine speeds and the system capacity of switching between high and low engine displacement within one camshaft revolution.
2009-01-16
Article
Antonov, developer of a revolutionary new type of automatic transmission, has just announced that Chinese carmaker Lifan Motors has expressed formal interest in assessing the Antonov TX6 transmission for installation in its 2010 late-model-year sedans. AEI contributor Mark Wilkinson went to Chongqing to examine the transmission.
2009-04-30
Article
Hybrid truck developers have focused on using batteries to drive vehicles, but some are now expanding that focus. A growing number of design teams are using battery packs to power a range of auxiliary functions.
2011-05-04
Article
Saab selected Eaton Corp. to design complete ducting systems for the Gripen Next Generation (NG) fighter aircraft’s bleed air and environmental control systems. Components manufactured by Eaton for the Gripen Next Generation aircraft include pneumatic ducts, rigid and flexible joints, and V-band couplings.
2011-09-29
Article
Hybrid and electric vehicles are being eyed by the military, which has often found it difficult to supply fuel when many vehicles are on the move. But a number of challenges must be overcome before warfighters see electrified vehicles in the field.
2012-12-10
Article
ARPA-e program involves several companies, government labs, and universities developing solutions so the U.S. can take advantage of its abundant natural gas reserves.
2017-04-13
Article
Eaton and Cummins announced a new joint venture, Eaton Cummins Automated Transmission Technologies, to design, develop, manufacture and service next-generation automated manual transmissions for heavy- and medium-duty commercial vehicles. The JV also includes current Eaton AMTs.
2016-01-08
Article
Most electric off-highway vehicles are relatively small vehicles that have small power requirements compared to some construction and agriculture behemoths. Hybrids fit more use cases.
2013-04-20
Article
Eaton announced April 20 that it will double capacity at its Jining, China, plant to meet growing customer demand in the region for its valve and valvetrain products and technologies. Located within the Eaton campus in Jining Shandong province, the expansion began this year and is expected to be operational in March 2014.
2014-04-04
Article
Shanghai is the location of Eaton's latest technical center in China. The new $3.3 million Vehicle Group Asia Pacific Technical Center will develop vehicle powertrain solutions for the Chinese and regional markets, according to the company.
2013-03-11
Article
While hybrid technology is helping some suppliers meet changing fuel and emissions expectations, engine makers are leaving no stone unturned as they attempt to reduce emissions and fuel consumption without reducing performance.
2009-02-06
Article
Rolls-Royce Corp. selected Eaton Corp. for two applications on the engine for the Airbus A350 XWB program. Eaton will design, develop, and supply both the main engine fuel pump and the engine build-up subsystems for the next generation of Trent engines. 
2010-10-08
Article
A company with a 20-year track record of developing electrical and hybrid power systems for trucks and buses is providing a means for recharging battery packs on full and partial EV passenger vehicles.
2017-08-12
Article
Eaton manufactured engine-driven pumps for the first flying MC-21 prototype and supplied additional system sub-components including thermal bypass valves, while Pratt & Whitney supplied its PW1000G GTF engine and Rockwell Collins, Honeywell, and Elbit supplies various avionics systems.
2008-10-02
Article
The growing adoption of biodiesel fuels, combined with the increasing percentages of biodiesel in those blends, is prompting changes in many conventional engine components.
2014-11-14
Article
Eaton has now released details of its Procision dual clutch transmission, unveiled at the IAA Hanover truck show, aimed at middleweight trucks and buses up to 16-t gross vehicle weight.
2009-02-27
Article
Vehicles on urban delivery and collection routes and buses are perhaps some of the more obvious beneficiaries of hybrid power systems, where the continual stop/start driving cycles offer many opportunities to recover and recycle braking energy.
2009-09-25
Article
A Class 8 commercial truck loaded with 159,080 lb (72,160 kg) of concrete and iron was at a standstill two-thirds of the way through a 15% incline, but the upward climb resumed without the tractor-trailer backsliding.
2008-07-15
Article
Eaton Corp. has been awarded an equipment contract with the U.S. FAA projected to exceed $40 million over a 10-year period. One of three FAA contracts currently held by Eaton, the new agreement encompasses three-phase uninterruptible power supply (UPS), maintenance bypass panels, and other associated power quality equipment, which will be deployed in mission-critical FAA installations throughout the continental U.S., Alaska, Hawaii, Guam, and Puerto Rico.
2016-09-27
Article
The supplier revealed a range of waste heat recovery technologies for heavy-duty diesel engines at the IAA Commercial Vehicles show in Hanover, Germany, as well as variable valve timing systems, highlighting their potential to reduce fuel consumption and help reduce emissions.
2009-07-22
Article
By converting 92 delivery vans to hybrid-electric propulsion, FedEx expects a 44% fuel economy improvement with significantly reduced emissions.
2009-03-05
Article
American Honda Motor Co. Inc. has introduced a Class 8 hybrid diesel-electric truck into its fleet at its Alpharetta, GA, parts center. The SmartWay-certified Peterbilt Model 386 hybrid truck is expected to reduce CO2 emissions by almost 10,000 ton (9070 t) per year, compared to its diesel counterpart.
2015-07-31
Article
With an electromagnetic clutch located between the drive pulley and supercharger rotors, the blower can be disengaged during idle, light throttle, and cruising situations.
2009-09-11
Article
Daimler Trucks North America (DTNA) will participate in the U.S. Department of Energy’s Clean Cities program for the production and sale of more than 600 Freightliner-brand trucks equipped with hybrid and natural-gas drive systems.
2008-04-11
Article
Of all the production piston engines in GM’s 100-year history, only the Allison aero V-12 that powered World War II fighter planes produced more power than the new LS9 V8 that will power the 2009 Corvette ZR1. Although GM has yet to certify the 6.2-L LS9 to SAE J1379 standards, its maximum torque target is above 600 lb•ft (813 N•m), and dyno testing has shown that 90% of peak torque is produced from 2600 to 6000 rpm.
2013-04-30
Article
Emphasis is on technologies that enable engine downsizing and downspeeding.
Viewing 1 to 30 of 46

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