The 'O' ring seal

Thursday, December 16, 2010
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I know it's hard to credit it, but before 1937 the 'O' ring didn't exist. Patented in that year by Danish immigrant to the US, Neils Christensen, an 'O' ring, while eminently simple in concept, is in practice a very powerful sealing mechanism. No won... read more
Tags :  engine-structure

Welding Inconel

Thursday, December 16, 2010
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As long as there is the pursuit for extra power there will always have to be a commitment to using more advanced and exotic materials. Exhaust design is no exception, and many exhaust systems - both classic and contemporary - provide us not only with... read more
Tags :  exhausts

Composite fasteners, part 2

Thursday, December 16, 2010
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In the previous article on fasteners, we looked at a very clever design of threaded fastener that used a composite shank with the threaded portions of the component still produced in high-strength metallic materials. Not only do these fasteners use a... read more
Tags :  fasteners

Nitromethane - rocket fuel or what?

Thursday, December 16, 2010
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A major factor in selecting any fuel for high-performance work is the ratio of the products of the reaction with the oxygen in the air to that of the reactants. In a liquid-fuelled space rocket, for instance, 1000 gallons of liquid oxygen will react ... read more
Tags :  fuel-system

Scavenging the turbo

Thursday, December 16, 2010
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In any dry-sump engine application the task of getting the oil out of the sump is often much harder than putting it in. This is because oil tends to flow better at the 3-4 bar pressure at the outlet of a pump than it does at the 0-0.7 bar depression ... read more
Tags :  oil-system

The gapless ring

Thursday, December 16, 2010
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It may sound obvious, but to assemble a piston ring into its grooves in a traditional two- or three-ring piston will require the ring to be split at some stage during manufacture. Placed on some form of mandrel and heat treated thereafter to an out-o... read more
Tags :  pistons-rings

Keronite coatings

Thursday, December 16, 2010
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In a recent RET-Monitor article on the subject of surface treatments for magnesium, mention was made of plasma electrolytic oxidation treatments. One such treatment that has found application in motorsport is Keronite, and while it is popularly used ... read more

The heat is on

Thursday, December 16, 2010
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One of the most difficult tasks for an experienced dyno engineer is to measure the amount of heat rejected to the engine coolant. On the face of it, fitting thermocouples - one in the engine water going in and another as it comes out and then measuri... read more
Tags :  test-equipment

High-speed raceboat propeller design

Thursday, December 16, 2010
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Although attaining speeds up to and in excess of 100 mph on tarmac is not an arduous task, it is a rather more multi-faceted undertaking on water. One of the many considerations of high-speed marine applications is transmission and propeller design. ... read more
Tags :  transmission
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