Maraging steels

Monday, October 07, 2013
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There are many applications for high-strength steels in the modern racing powertrain. Their use allows us to make lighter parts and, given that race engine and transmission designers spend much time, effort and money on reducing mass, it should come ... read more

The small-end bearing

Monday, October 07, 2013
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As critical as it is to the reliable running of any internal combustion engine, the operation of the small- or little-end bearing and its associated gudgeon (or, as often referred to nowadays, the piston pin) is still a bit of mystery. So if at the o... read more
Tags :  bearings

The camless engine (2)

Monday, October 07, 2013
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The demise of the camshaft has been predicted for many years. Optimised over a narrow window of engine operating range, in one way the camshaft can be used to enhance engine performance, but in others it can also limit it. So when optimised at one pa... read more
Tags :  camshafts

Plasma/thermal sprayed valve seats

Monday, October 07, 2013
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The subject of valve seat materials has been dealt with in RET-Monitor before; an article published in 2012 briefly discussed the requirements for seat materials. There are several important requirements for a valve seat material. It is generally res... read more
Tags :  coatings

The exhaust heat exchanger

Monday, October 07, 2013
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As a power unit engineer intent on extracting the maximum amount of power and fuel efficiency from a given volume of fossil fuel, without wishing to contradict Newton’s Second Law of Thermodynamics, the fact that any heat rejected is an admissi... read more
Tags :  coolant-system

Welding of assembled crankshafts

Monday, October 07, 2013
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In 2010 I wrote a RET-Monitor article on assembled or ‘split’ crankshafts. In it I mentioned some of the applications of this type of crankshaft assembly, and discussed some of the advantages and disadvantages. There was a brief mention o... read more
Tags :  crankshafts

The carbon-face seal

Monday, October 07, 2013
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In engine design sometimes parts cannot be made out of a single piece, which unfortunately means that seals and gaskets are necessary to keep the several fluids and air inside the engine, and keep dust, debris and water on the outside. I say ‘... read more
Tags :  engine-structure
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