Bosch Advanced Diesel Technology Supports Commercial Vehicle, ...

Tag : diesel

FARMINGTON HILLS, Mich., Oct. 7 /PRNewswire/ -- Bosch, a technologyleader and partner in clean diesel technologies, is using itsglobal reach and complete system expertise in diesel technology, tohelp the commercial vehicle and off-highway industries reducediesel emissions to meet near-term emissions standards and furtherimprove fuel economy.
Starting with the 2007 model year, the U.S. EnvironmentalProtection Agency (EPA) adopted new emissions standards forheavy-duty diesel truck and bus engines, requiring the commercialvehicle industry to reduce diesel emissions (particulate matter,nitrogen oxide and nonmethane hydrocarbons) by 95 percent.Similarly, in 2004, the EPA issued a final rule that requiresoff-highway diesel engines such as those used in tractors,bulldozers, heavy construction, mining, logging equipment, airporttugs, locomotives and commercial marine vessels, to cut emissions90 percent by 2014.
For all classes of these vehicles, engine manufacturers andoriginal equipment manufacturers (OEMs) may be required toimplement a combination of diesel exhaust aftertreatment systemswith engine design and control changes to meet these newrequirements. Bosch offers technologies and expertise that assistengine manufacturers and OEMs in developing the best solution.
"The commercial vehicle and off-highway industries are the backboneof any country for the distribution of goods, infrastructure anddevelopment of natural resources. We are squarely focused onsupporting the technological advancement of this industry," saidBernd Boisten, regional president, diesel systemsNorth America,Robert Bosch LLC. "We are devoting critical resources to thismarket, taking what we have learned in commercial vehicles on aglobal basis, and applying it to off-highway vehicles inNorthAmerica."
"Bosch is a flexible, full-service partner and provider. Fromconcept, to testing, through to manufacturing, we bring theindustry's most advanced diesel systems technology," he said.
Alain Jablonowski , key account director, commercial vehicles, Robert Bosch LLC,explains that Bosch's long-term commitment to clean mobility iscentered on its four areas of environmental solutions: Innovativeinjection systems, including injectors, pumps and control systems;diesel aftertreatment, such as Selective Catalyst Reduction(SCR)/Denoxtronic and Hydrocarbon Injection (HCI)/Departronic(R);alternative drive concepts, including hybrid, downsizing,start/stop systems; and compatibility with alternative fuels.
"Bosch has a global presence that continues to attract and retainhigh-caliber technical talent to support the globalization of everycommercial vehicle OEM on all continents," said Dr. Johannes-Joerg Rueger , senior vice president engineering, Robert Bosch LLC. InNorthAmerica, Bosch'sFarmington Hills, Mich., technology center hastesting, system and application engineering capabilities focused onmeeting its on- and off-highway customers' needs in the NorthAmerican market.
Common rail systems
Rueger explains that with the new CRSN3.3 and CRSN4.2 common railplatforms, Bosch offers injection technology for commercialvehicles, making diesel engines more economical, moreenvironmentally friendly and above all quieter, with a highpower-to-weight ratio. CRSN3.3 offers the industry a system with2,000 bar pressure for medium-duty trucks and 2,200 bar pressurefor heavy-duty trucks, which creates low consumption and lowemissions while maintaining the same high power output.
CRSN4.2 offers a newly developed two-stage pressure generationsystem suited for Heavy-Duty Class-8 applications. Instead ofcompressing the fuel to the current maximum injection pressure of2,100 bar in the high-pressure pump, the fuel is compressed in theinjector, which is equipped with a hydraulic pressure amplifier andtwo solenoid valves. This process allows the injection patterns tobe flexible, meaning the timing and quantity of the fuel injectedinto the combustion chambers can be varied resulting in lowemissions and reduced engine noise. When combined with electronicdiesel control (EDC) and Denoxtronic for diesel aftertreatment,Bosch's complete solution for commercial vehicles allows futureemissions standards to be met, such as the U.S. 2010 or the Euro 6 , planned for 2012.
Diesel aftertreatment
Bosch diesel aftertreatment components are making commercialvehicles cleaner and more economical. Bosch's Denoxtronic reducesnitrogen oxide emissions, while Departronic supports theregeneration of diesel particulate filters.
Over the last decade, nitrogen oxide emissions have been reduced bymore than 90 percent, mainly as a result of engine modificationsand advancements in fuel injection systems. The Denoxtronicmetering system developed by Bosch, as part of the selectivecatalytic reduction system (SCR), reduces residual nitrogen oxidesby up to 85 percent.
Modern diesel particulate filters reduce particulate emissions bymore than 90 percent. With Departronic, Bosch offers a dieselfuel-metering system, applicable for all commercial vehicleapplications, for the regeneration of particulate filters. Thisrobust system, which needs no servicing, controls the dosing offuel according to the regeneration process, and independently ofthe engine's injection system. Compared with post-injections in theengine itself, Departronic is also more economical. Furthermore,since engine oil does not become diluted, oil changes are neededfar less frequently.
Proven expertise
Bosch recently demonstrated its technology know-how with the launchof it first-ever common rail system in a Class-8 truck introducedinNorth America to meet the U.S. 2007 emissions standards. Boschhas continued its co-development process with several other enginemanufacturers to introduce further applications in 2008.Additionally, the same Bosch technology -- and associated benefits-- that maximize the commercial-vehicle on-highway experience canbe used for the off-highway industry as it strives to meet theupcoming emission legislation.
In addition to helping manufacturers meet emissions regulations,Bosch supplies various components for commercial vehicles,including: engine management systems; diesel exhaustaftertreatment; brake systems (LCV); steering gears, pumps; rearaxle steering; starters; alternators; navigations systems; fleetmanagement; trailer telematics; coach entertainment; truck radio;airbag electronics; mobile hydraulics; and service components.
Rexroth, a subsidiary of Bosch, offers reliable solutions forpowertrain controls, pneumatics for trucks and busses, as well asvarious other applications such as Hydrostatic Regenerative BrakingSystem (HRB).
The Bosch Group is a leading global supplier of technology andservices. In the areas of automotive and industrial technology,consumer goods, and building technology, some 271,000 associatesgenerated sales of over 46.3 billion euros (over $63 billion ) in fiscal 2007. The Bosch Group comprises Robert Bosch GmbH andits more than 300 subsidiaries and regional companies inapproximately 50 countries. This worldwide development,manufacturing, and sales network is the foundation for furthergrowth. Each year, Bosch spends more than 3 billion euros for research and development, and applies for over 3,000 patentsworldwide. The company was set up inStuttgart in 1886 by Robert Bosch (1861-1942) as "Workshop for Precision Mechanics and ElectricalEngineering."
InNorth America, the Bosch Group manufactures and marketsautomotive original equipment and aftermarket products, industrialautomation and mobile products, power tools and accessories,security technology, thermo-technology, packaging equipment andhousehold appliances. Bosch employs approximately 25,000 associatesin more than 70 locations throughout the U.S.,Canada and Mexico,with reported sales of $9.5 billion in fiscal 2007. For more information on the company, visit www.boschusa.com .
SOURCE The Bosch Group