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The Global Market for Automotive Turbochargers: 2015 edition

Since the last edition of this report in 2013, the demand on automakers has been relentless in terms of improving fuel economy and reducing emissions, thus driving increased sales of forced induction systems. The use of pressure charging techniques has therefore expanded significantly. Recent years have seen the ascendancy of the turbocharger and its use by almost every major global manufacturer.

SAE Off-Highway Engineering 2000-04-01

Simulating cab noise and vibration Researchers at kubota and Doshisha University have established a prediction method for the engine-idling state using statistical energy analysis. Manufacturing cost estimating Caterpillar's ACT Group uses Micro Estimating Systems' computer-aided estimating program to increase efficiency and decrease operating costs in powder-metal part manufacturing. In search of greener pastures Agricultural OEMs are looking at the total life cycle to develop more environmentally conscious products and processes. Emissions and lubrication More stringent diesel emissions legislation is placing an increased burden on engine lubricant in the form of soot loading.

SAE Off-Highway Engineering 2006-10-01

Making sense of engines Heavy-duty equipment is known for its ruggedness in harsh environments, but vehicles are not neglecting their sensitive side. The world's fastest digger gets closer JCB's Dieselmax goes 350 mph and teaches engineers much about engine capability, extreme testing, and program management. The whole system, and nothing but the system Properly implemented, an electrohydraulic system can add a great deal of automatic control, advanced performance, advanced diagnostics, and remote monitoring to a mobile application. Regenerative hydraulics The use of multiple hydraulic pumps can satisfy the needs of various circuits in off-highway equipment. The gas is greener Biofuels promise to help reduce petroleum cinsumption and CO2 emissions, but much of the potential depends on production and infrastructure investments. Material returns Effective use of materials information is important to engineers in development of parts and components.

SAE Off-Highway Engineering 2008-09-01

Shrinking hydraulics The push to conserve fuel and reduce emissions is prompting major changes in system design. Aftertreatment temperature control Regeneration of a DPF burns off soot, but also raises exhaust gas temperature. Speed thrills: doing more tests in less time Quicker data gathering, simulation keep quality high despite time crunch. Green engineering The quest to alleviate environmental and efficiency pressures turns up 'small' material solutions with big benefits. A global forum Cummins executives lay the groundwork for a lively and informative discussion at this year's Commercial Vehicle Engineering Congress & Exhibition.

SAE Off-Highway Engineering 2003-02-01

The evolution of diesel emissions control The development of clean diesel has been a saga of evolution punctuated by occasional milestones. Heavy-duty engine emissions tests Ricardo recently commissioned from Emprise a new full-dilution emissions measurement system at its Chicago Technical Center. Air entrainment in hydraulic systems Researchers from Opus Systems and Hosei University designed a device to remove bubbles or foam in working oils for improved performance. Turbocompounding revisited Scania has introduced a new in-line six-cylinder engine that uses technology developed 20 years ago to meet tomorrow's emissions requirements.

SAE Off-Highway Engineering 2005-03-01

Engine electronics come of age Changes in global standards, combined with engineering know-how, have resulted in a new generation of clean, quiet, and efficient engines. Operators are rolling in the chips Microprocessors and sensors are being combined to monitor the way that equipment is being used, then help operators to perform better in that environment. Gaining weight Perkins' influence in the off-highway industry grows as it evolves its global engine lines and expands its presence in the U.S. What's new at CONEXPO-CON/AGG, Part 2 of 2 A preview of some of the products and technologies that will be displayed at this year's event, scheduled March 15-19 in Las Vegas, NV. Engineering a career Off-highway companies are challenged not only by the ever-changing technology landscape, but also by finding the engineering talent to help them succeed in it.

SAE Off-Highway Engineering 2008-03-01

In search of the perfect burn The simultaneous download pressures on NOx and PM continue to make research into higher injection pressures and alternative combustion solutions such as homogenous-charge compression ignition attractive. One way to stop a train A new self-energizing electrohydraulic brake offers the advantages of hydraulic brake actuation without the disadvantages of a centralized hydraulic power supply. A model combustion: from art to science Analysis tools, advanced hardware provide insight into combustion process, refining the cylinder's 'big bang.' The datalinked vehicle In the fields and on the job site with GPS.

Diesel Smoke Measurement Procedure

This SAE Recommended Practice applies to the dynamometer test procedure which can be used to assess the smoke emission characteristics of vehicular diesel engines. In particular, this procedure describes the smoke test cycle, equipment and instrumentation, instrument checks, chart reading, and calculation for evaluation of an engine's transient smoke emission characteristic. In addition, this procedure offers guidelines to be used in establishing correlation between full flow in-line and end-of-line opacimeters. Since the type of test described here is transient in nature, a fast responding full flow opacimeter is required for the smoke measurements. Slow responding or sampling, or both, type instruments must not be used since they typically have excessive and variable response delays and do not provide an accurate measurement of an engine's transient smoke characteristics.

Fuel Economy Improved & CO2 Reduction, Commercial Vehicle 2015

This technical paper collection explores total vehicle and powertrain technologies for on and off-road commercial vehicles aimed at reduction of CO2 emissions through design, analysis, and testing techniques. The topics may include energy analysis/management/optimization, current and proposed emission legislation, certification techniques, powertrain integration, weight reduction, idle reduction, and friction/parasitic reduction.

Diesel Fuels

Automotive and locomotive diesel fuels, in general, are derived from petroleum refinery products which are commonly referred to as middle distillates. Middle distillates represent products which have a higher boiling range than gasoline and are obtained from fractional distillation of the crude oil or from streams from other refining processes. Finished diesel fuels represent blends of middle distillates and may contain other blending components of substantially non-petroleum origin, such as biodiesel fuel blend stock, and/or middle distillates from non-traditional refining processes, such as gas-to-liquid processes. The properties of commercial distillate diesel fuels depend on the refinery practices employed and the nature of the crude oils from which they are derived. Thus, they may differ both with and within the region in which they are manufactured. Such fuels generally boil, at atmospheric pressure, over a range between 130 °C and 400 °C (approximately 270 °F to 750 °F).

Development of DPF/SCR System for Heavy Duty Diesel Engine

The development of PM and NOx reduction system with the combination of DOC included DPF and SCR catalyst in addition to the AOC sub-assembly for NH3 slip protection is described. DPF regeneration strategy and manual regeneration functionality are introduced with using ITH, HCI device on the EUI based EGR, VGT 12.3L diesel engine at the CVS full dilution tunnel test bench. With this system, PM and NOx emission regulation for JPNL was satisfied and DPF regeneration process under steady state condition and transient condition (JE05 mode) were successfully fulfilled. Manual regeneration process was also confirmed and HCI control strategy was validated against the heat loss during transient regeneration mode. Presenter Seung-il Moon

Liquefied Natural Gas (LNG) Vehicle Fuel

This SAE Information Report applies to liquefied natural gas used as vehicle fuel and requires LNG producers to provide the required information on the fuel composition and its “dispense by” date.

Lubricants, Industrial Oils, and Related Products - Type X (Greases) - Specification

The greases have been classified according to the operating conditions under which they are used, because the versatile nature of greases makes it impractical to classify them according to end use. It will therefore be necessary to consult the supplier to be certain that the grease can be used in; for example, rolling bearings or pumped supply systems, and also concerning the compatibility of products (see Remarks in Table 1).