Supplier Spotlight

Video Exclusives

Inside the SRT Demon

gtr

Tim Kuniskis, Head of Passenger Cars – Dodge, talks through some of the mechanical changes behind the fastest accelerating, and most-powerful muscle car ever; the 2017 Dodge Challenger SRT Demon.


Lucid Air prototype testing

gtr

With 1,000hp and up to 400 miles driving range, the Lucid Air is one of the most exciting EC developments of the year so far. Watch here the prototype being tested earlier this year.

Click here/on image to watch video

Web Exclusives

« back to listing

Reducing cylinder liner distortion

Advanced cast iron technology from Federal-Mogul Powertrain is resulting in lower oil consumption and reduced bore friction whilst allowing higher combustion pressures

 

Federal-Mogul Powertrain has become the first company to bring ultra high-strength iron cylinder liners into series production. Made of a special form of compacted graphite iron (CGI), the latest formulation – designated GOE330 – reduces the typical bore distortion under maximum piston side thrust by up to 27%, compared to existing iron materials. It is used in liner applications between 100mm and 190mm bore.

“Bore distortion under load makes sealing between the liner and the ring pack more difficult, leading to increased oil consumption and greater wear,” explained Gian Maria Olivetti, chief technology officer, Federal-Mogul Powertrain. “If ring tension is increased to compensate, it leads to higher friction and greater fuel consumption”.

“By developing new liner materials with higher strength and stiffness, we enable our OEM customers to develop more efficient engines, using higher peak cylinder pressures,” continued Olivetti. “We also make it possible for them to use thinner liners, resulting in more compact engine designs.”

The Young’s Modulus of GOE330 is more than 15% greater than existing high-strength iron liner materials, while at 270 MPa its fatigue strength is approximately one-third higher. Future developments are planned that will achieve even higher levels of strength and stiffness.

The off-highway sector – construction, agricultural and industrial applications – has been first to recognise the benefits of ultra high-strength liners, but Federal-Mogul Powertrain also expects growing interest in the technology from marine, power generation and on-highway heavy-duty engine manufacturers.

Federal-Mogul Powertrain has extensive experience of liner material development and also of the comprehensive simulation and analysis required to optimise the geometry of a new liner application, under different thermal and mechanical loads. This is supported by rig tests prior to engine application testing, using the company’s in-house designed, Hydropulser test bench to reproduce fatigue loads resulting from piston side-thrust.

To ensure that every production liner meets the same high performance standards as the initial samples, Federal-Mogul Powertrain uses advanced high quality manufacturing equipment to optimise tolerance and honing control. Similar emphasis on metrology after manufacture confirms the geometric forms and surface topography.

“We understand that individual applications and markets are driven by different priorities and we cater for each with alternative solutions,” said Dr. Volker Scherer, director liners, Federal-Mogul Powertrain. “For some of our customers, the liner is a commodity where value and local sourcing are key influences; for others, more challenging design targets and load requirements necessitate superior mechanical properties, such as those provided by GOE330”.

“Whichever approach is taken, we are able to support our customers by providing a complete, optimised assembly for the entire power cylinder system, including liner, piston and ring pack.”

 

1 August 2016

Read Latest Issue

International Engine of the Year Awards
Read Latest Issue
Read Latest Issue

Web Exclusive Articles

Jaguar F-Type 2.0-liter: The Knowledge
Jaguar is broadening the appeal of the its F-Type performance coupe, with the introduction of the a new 2.0-liter entry-level model, powered by a state-of-the-art four-cylinder Ingenium petrol engine
Read Now

Engines on test: Bentley Bentayga W12 TSI
The first Bentley SUV packs a 608ps, 900Nm punch via an all-new 6.0-liter twin-turbo W12 TSI powerplant. But staggering power levels aside, is it any good? 
Read Now

Fleet trialling sustainable ethanol fuel
Clariant, in conjunction with Mercedes-Benz and Haltermann Carless, have been trialling the use of sustainable cellulosic ethanol on a number of vehicles over a twelve month period
Read Now


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukimediaevents.com for more details.

فروشگاه اینترنتی فروشگاه اینترنتی سیستم همکاری در فروش خرید شارژ ایرانسل دانلود فیلم دانلود فیلم

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukimediaevents.com