Copper materials in bearings

Friday, May 11, 2012
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Plain bearings come in a huge range of sizes, and in dealing with engines we will be familiar with a number of different types. The simplest are the cylindrical bush types which we see in various guises, most notably as con rod bushes and valve guide... read more

KERS: power electronics

Friday, May 11, 2012
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Whenever we hear about Formula One KERS systems, or the much-vaunted hybrid systems as used at Le Mans and in a growing number of roadcars, many of us imagine a large alternator being used to change mechanical energy into electrical energy (or vice v... read more

A bit of a crush

Friday, May 11, 2012
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To those who travel regularly on a mass transit rail network like the London Underground or New York Subway, the term 'crush' will have its own and possibly unpleasant associations. Packed tightly into a carriage just as one more person squeezes in b... read more
Tags :  bearings

Follower friction

Friday, May 11, 2012
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In these days of soaring fuel prices the top priority for any engine manufacturer is the responsible use of scarce resources. Specific fuel consumption or the amount of fuel used per unit power output per hour is the measure of the task, and a major ... read more
Tags :  camshafts

Piston skirt coatings

Friday, May 11, 2012
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If you attend a motorsport trade show and look at the pistons on offer, you will see that a number of them have a coating (or sometimes more than one coating). More often than not, where a single coating is applied to a piston, it will be a skirt coa... read more
Tags :  coatings

Fasteners for con rods

Friday, May 11, 2012
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Bespoke race engines are festooned with purpose-designed fasteners, each of which carries out a specific task. We need specially designed fasteners for many reasons; every engineer has his preferences, so all engines are different and fastener design... read more
Tags :  con-rods

Taking the heat

Friday, May 11, 2012
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That the average gasoline-fuelled race engine is no more than about 28% efficient is a source of great angst to many power unit engineers. But while the best will claim 37-38% and the worst nearer 20%, the inescapable fact still remains that the vast... read more
Tags :  coolant-system

Splitting crank pins

Friday, May 11, 2012
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Opinion is divided on the need to have even firing intervals for engines. With very few exceptions, road vehicle engines fire at equal intervals, while many two-cylinder engines fire at unequal intervals, and some three-cylinder engines in the past h... read more
Tags :  crankshafts

Rotary sense

Friday, May 11, 2012
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I'm sure you'll agree when I say the environment alongside a race engine isn't the most electronics-friendly of places. Heat and high levels of vibration are traditionally the enemies of anything electronic, and consequently the technology of produci... read more
Tags :  electronics

No pain, no gain...

Friday, May 11, 2012
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As I described in my previous article, there were (and are) many enthusiasts out there creating their own race engines. Historically, the racing series with the most open regulatory books have been those based on these DIY race engines. One such seri... read more
Tags :  engine-structure
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