Tag Archives: performance

Mazda To Delay SKYACTIV-D Clean Diesel Launch In North America

AUTOSERVICEWORLD.COM


Mazda Canada Inc. has announced that the launch of its SKYACTIV-D clean diesel engine in North America is being further delayed from its Spring 2014 announced debut timing.

While Mazda understands its SKYACTIV-D can meet emission regulation requirements without the use of a NOx after-treatment system, it has decided that further development is required to deliver the right balance between fuel economy and Mazda-appropriate driving performance.

Further information on the program, including a timeline of launch for North America, technical specifications and fuel economy will be available at a later date, closer to launch.

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Maintaining Diesels

  You don’t have to go far to find a fleet having trouble with engines. Mostly they report emissions systems problems, not surprising given the short time the engine makers had to meet the Environmental Protection Agency’s tight timelines.

 The importance of Diagnostics   http://www.truckinginfo.com/news/news-detail.asp?news_id=78510&news_category_id=74&utm_source=Email&utm_medium=Enewsletter

Honeywell’s 2-Cylinder Diesel Engine

A new chapter in the story of ultra-fuel efficient auto design opened in 2011 with the development of the world’s first 2-cylinder turbocharged diesel engine.

Today, the 0.8L engine, boosted by Honeywell’s smallest-ever turbo, can be seen powering vehicles through the busy streets of India’s cities and towns, typically carrying goods from warehouses to local businesses. For Honeywell, boosting such a small engine created a whole new set of design and engineering challenges.

“The issues in developing a turbo for a 2-cylinder engine not only revolve around packaging but also around specific challenges linked to compressor surge, oil leakage, high vibrations and high thrust load due to engine pulsations. These issues are far more pronounced here than in a four-cylinder engine,” says Vijayan Asvathanarayanan, Director of Application Engineering for Honeywell Turbo Technologies in India.

This meant that Honeywell engineers had to approach the turbo design from a completely new angle.

“We came up with a totally new turbocharger that included a very small turbine housing with integrated manifold, and the smallest-ever compressor wheel developed by Honeywell. The higher relative thrust loads brought about by the pulsation of a bi-cylinder engine meant creating new concept thrust pads in the Z-bearing – vital if we were to be efficient in matching the turbo to the engine requirements.”

A high-efficiency, compact bearing was developed – and the design was so successful that it is now being extended to other turbo sizes as well.

The result of this intense engineering activity is a well-performing and reliable turbo fitted in the 2-cylinder OEM production engine since 2011, which is contributing to a remarkable 25% improvement in power over a non-turbo equivalent and to significant fuel efficiency gains and lower emissions.

Critically, the proven success paves the way for the roll-out of a new generation of turbocharged 2- and 3-cylinder diesel passenger cars and light commercial vehicles, particularly in emerging regions.

ADS News – Yanmar America Announces Partnership with The Toro Company

By BusinessWirevia The Motley Fool
Posted 12:05PM 10/16/12 Posted under: Investing
040220

Yanmar America Announces Partnership with The Toro Company to Provide Tier 4 Compliant Diesel Engines for Commercial Applications

ADAIRSVILLE, Ga.–(BUSINESS WIRE)– Yanmar America Corp., a division of Yanmar Company Ltd., is pleased to announce a partnership with The Toro Company to provide diesel engines for select commercial turf maintenance equipment. The Yanmar diesel engines will allow Toro to comply with the U.S. Environmental Protection Agency’s Tier 4 emissions regulations which go into effect January 1, 2013.

Yanmar will provide Toro with EPA compliant diesel engine models. The low total lifecycle ownership cost of Yanmar’s diesel engines along with innovative technology and reduced environmental impact were deciding factors in Toro’s decision to form a partnership with Yanmar. The first Toro products to feature Yanmar’s Tier 4 compliant diesel engine technology will be select commercial mowers over 25 horsepower.

Happy 100th Birthday to the Turbocharger

A century ago, Swiss engineer Alfred Buchi was studying steam turbines when inspiration struck: Why not spin the wheel with exhaust from an internal combustion engine and use the recovered energy to force-feed the intake side? It was a brilliant concept, since roughly a third of the energy in fuel is normally squandered out the tailpipe. Buchi applied for a patent to cover his invention in 1905.

ADS News – LiquidPiston Unveils Ultra Efficient, Small Diesel Engine

By Katie Fehrenbacher from Gigaom

The internal combustion is officially still alive, and delivering efficiency innovation.

While electric cars get a lot of media attention, the reality is that the internal combustion engine is far from dead, particularly for the future car owners in the developing world. A startup called LiquidPiston — which has been around for years and which got its start as a father-son team in a business plan competition at MIT — is in the process of developing a diesel engine which is far more efficient, smaller and quieter than a standard diesel engine.

The engine, called the X2, will be available as a beta prototype for outside testing by the first quarter of 2013. The engine is able to achieve more than 50 percent efficiency under typical operating modes, while typical diesel engines usually achieve less than 20 percent efficiency.

The X2 is a new type of engine architecture, based on a rotary engine. LiquidPiston CEO and President Alexander Shklonik told met in an interview that this new version of the rotary engine is more flexible and can thus be more efficient when optimized in the right way. The engine is smaller, lighter, and cheaper, with ten times fewer parts, than current diesel engines on the market, says Shklonik.

Shklonik told me in a phone interview that the first applications for the engine won’t be the mainstream automotive industry, but will be industries like defense, long haul trucks, plug-in vehicle range extenders, and other more niche markets. LiquidPiston has raised $12.3 million so far, and tells me that it’s looking to raise another $20 million later this year. The company has around 12 employees.

Other startups that have developed more fuel efficient engines include EcoMotors, Pinnacle Engines, and IRIS Engines. More efficient engines will be used in both the next-generation of cars sold in developing countries, and also countries like the U.S. that have new fuel efficiency standards. The Obama administration passed the CAFE standards, which require a fuel efficiency of 54.5 miles per gallon by 2025.

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Sales of Jeep® brand vehicles rose 61.8 percent in Europe (the 27 member states of the European Union, plus the four European Free Trade Association countries) in 2011 versus 2010 – compared to an industry decline of 1.4 percent – according to numbers released by the European Automobile Manufacturers’ Association (ACEA).

Chrysler Group’s plan to sell a diesel version of its Jeep Grand Cherokee SUV in North America shows the company is heading in a different strategic direction than most of its competitors. In addition to the Grand Cherokee, Chrysler is likely to introduce diesel engines on the Jeep Wrangler, Dodge Durango and possibly other SUVs

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Everybody wants more for less these days, and that premise is the key to the success of Drive’s Car of Year for 2011, the Mercedes-Benz C250 CDI.

The family-sized Benz has more torque, or pulling power, than a lot of petrol-guzzling V8s, yet it uses less fuel than the average city runabout.

The secret to this impressive balancing act is the diesel engine that lurks beneath its stately bonnet. 

So what makes diesel cars, and our Car of the Year, the Mercedes-Benz C250 CDI, a winning formula?

Well, for a start the C250CDI can accelerate from 0 to 100km/h in just a tick over seven seconds, which is similar performance to a big six-cylinder petrol engine. Take it out on the freeway and its rolling acceleration will be the equal of many V8s, which makes long-distance cruising and overtaking an effortless exercise.

That is impressive in itself, but when you add the fact that it uses a claimed average of 5.1 litres per 100km – less than the tiny Volkswagen Polo – it is outstanding. The figures help explain why 20 of the 46 vehicles in this year’s awards are diesel powered.

Fuel economy and reduced CO2 emissions have become a top priority for every car maker and modern common-rail diesel engines, matched to the latest fuel-saving techno-trickery, are one of the easiest paths to greener motoring.

The Mercedes, and nine other finalists, use stop-start technology to improve fuel consumption in congested cities. When the car is stopped at the lights, the engine switches off to save fuel.

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Denso, the Japanese fuel system supplier, says it will achieve common-rail system nozzle pressures as high as 3000bar in the foreseeable future. That implies an ability to start injection later in the cycle, closer to top-dead-centre, together with earlier cut-off, thereby achieving more complete combustion of the fuel, to the benefit of consumption and particulate emissions.