High-Strength Tungsten Alloys

Sunday, November 15, 2009
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In a recent article in the crankshaft section of the website, I discussed very briefly the methods by which heavy metal counterweighting can be added to crankshafts. Heavy metal is the common term, but a more technically correct description would be ... read more

KERS explained

Sunday, November 15, 2009
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KINETIC ENERGY RECOVERY SYSTEM (KERS) EXPLAINED KERS is a collection of parts which takes some of the kinetic energy of a vehicle under deceleration, stores this energy and then releases this stored energy back into the drive train of the vehicle, p... read more

Fatigue and wear in a journal bearing

Sunday, November 15, 2009
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FATIGUE AND WEAR IN A JOURNAL BEARING (during start-up and boundary lubrication)When two bodies are pressed together contact stresses occur. The results of the work done in this area are due to Hertz and are referred to as Hertzian stresses. Two spec... read more
Tags :  bearings

Timing the piston

Sunday, November 15, 2009
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In a good camshaft design the cam profile is but one half of the story. Lifting the valve off its seat and then opening fully before closing it again and dropping it gently back onto its seat requires a lot of careful mathematics and, executed well, ... read more
Tags :  camshafts

Polymer Coatings in Racing Engines

Sunday, November 15, 2009
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The use of polymer coatings in racing engines has been widespread for many years, but is to some extent being displaced by the newer generation of coatings such as titanium nitride, chromium nitride and DLC as examples. In a lot of circumstances the ... read more
Tags :  coatings

Connecting Rods: Material Choices (4)

Sunday, November 15, 2009
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Last month, we looked further into the use of titanium for con rods and this month we look briefly into the use of steel, which remains in many cases the material of choice for con rods. There are far more manufacturers of con rods who offer steel ro... read more
Tags :  con-rods

Crankshaft Oil Drillings

Sunday, November 15, 2009
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We should all be very familiar with the primary functions of a crankshaft, namely as part of the mechanism which converts reciprocating motion into rotary motion, and to transmit torque to the outside world, where it might drive a gearbox, a generato... read more
Tags :  crankshafts

Taking charge

Sunday, November 15, 2009
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Even as a boy I was continually mystified, and occasionally perplexed, by the operation of the carburettor. The myriad of main jets, air correction jets and emulsion tubes and the science on the fixed jet DCOE was a veritable minefield for the inexpe... read more
Tags :  electronics

Magnesium in the cylinder block

Sunday, November 15, 2009
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In the inexorable search for reduced weight, the various alloys of aluminium are most commonly used for high performance gasoline engines. Where peak firing loads are higher, for example as in the case of a modern direct injected diesel engine, this ... read more
Tags :  engine-structure

Laser honing

Sunday, November 15, 2009
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The surface condition of the cylinder bore has occupied the minds of motorists, engineers and enthusiasts for many years. Often expressed in terms of oil consumption – miles per litre or miles per quart depending upon which side of the Atlantic... read more
Tags :  engine-structure
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