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Mercedes-Benz unveils its revamped G-Class


The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.

Ford’s F150 pickup gets its first diesel motor


Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.

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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 


SHOW LIVE: Rane's new hollow and sodium-cooled valves

Engine valves and aluminum die castings are two of Rane’s product lines in focus at Engine Expo North America at booth E266. The company is displaying its range of hollow and sodium-cooled engine valves, which offer not only a weight reduction of up to 7%, but also efficient thermal conduction that reduces engine temperatures by 150°C, enabling designers to push the limits of engine performance to meet even the most stringent fuel efficiency and future emissions norms.

Surface treatment option innovations will also be on show – Rane has perfected its understanding of material response to varying engine conditions, and has developed a comprehensive database of process failure modes. This enables it to provide solutions to address problems customers have yet to anticipate. Rane has applied its knowledge of hard-facing to smaller-stem-diameter engine valves with high end-hardness of greater than 60HRC, showing zero valve end-wear and applicable for high-speed engines.

Further improvements have been implemented to reduce end-wear through the application of carbon-based surface treatments, which enable almost infinite life of the tappet end of the valve. The carbon-based surface treatment has been replicated in Rane’s tappet parts to provide a better finish, resulting in a decrease in friction of up to 40%. The tappets also benefit from the company’s latest hard-facing processes, which give almost infinite tappet life for heavy-duty vehicles in the MHCV segment.

October 20, 2015

20 October 2015


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