Brake Energy Monogram TYPICA L BRAKE ENERGIES Energy per Wheel Wheel Dia. Aircraft Ins. 10' ft.-lb. Eon, Austcr, etc 0.1 Dove 0.75 1.0 Marathon 12 Vampire . . 1.5 Meteor IV 3.5 15 Convair Liner 2.3 16 Ambassador 3.7 17 Wayfarer, Viking 2.0 18 Constellation 7.0 Hermes V 7.7 21 is very far from being an advertising brochure and is, in fact, a practical textbook, the contents of which were prepared by the Technical Informa tion Department as a result of the'work of the Under this heading are published from time to time, brief reviews of a selection of the firm's Research Laboratories. Moreover, as the authors explain, the question of good lubrication Trade Publications received for notice is not only the choice of the right medium, but is also a matter of designing the bearing correctly— culties of lubricating the dense chrome metal, Porus-Krome—Good for the life of your engines fundamentally, there is no substitute for good which does not hold oil well. The cost of recon [Avio-Diepen N.V., Vlicgvcld Ypenburg, Rys- bearing design. Because of this, the text starts ditioning a typical aero-engine cylinder, including wijk, Holland] with a discussion of friction and the first princi grinding out ovality, plating and hone finishing, is ples of lubrication, going on to develop clearly Porus-Krome is a method of plating the inside only about seven pounds sterling, so that the and logically the behaviour of lubricants in use of engine cylinders invented by Dr Hcndrik van saving is considerable. The process is fully and the various types of bearing, their applica der Horst, who filed his first patent in 1933. approved by the American aeronautical authori tions and their particular requirements in lubri Although he formed a company in Holland ties and is also being used by the French and cation. The book ends with a chapter on the (Ingeniers-bureau Lcmct Chromium) before the Spanish air forces. The European aviation troubles of lubricating systems and bearings and War, the inventor escaped to the U.S.A., where interests are handled by Avio-Diepen, who issued gives some selected remedies. There are 164 he put his process at the disposal of the Allies and this well-written and informative booklet. illustrations, many of them printed in two colours, it was widely used in aircraft, land and marine that have been very well chosen to amplify the engines for the U.S. Forces. Bearing Lubrication text. It should be made clear that much of the The process is one that deposits a layer of pure [C. C. Wakefield & Co. Ltd., Grosvenor Street, specific material on bearing design deals with chromium (0-05 to 0-50 mm. thick) directly on industrial machinery; nevertheless, it is an invalu London, W.l. 21s.] the running surface of the cylinder at a tempera able book and one which, despite its price, we ture of only 70 deg. C. A very complete bond of This handsome quarto book of some hundred strongly recommend for the library of every metals is claimed and, in particular, the porous and thirty pages is one of a series of technical engineer. volumes issued by the makers of Castrol oils. It nature of the deposit overcomes the normal diffi 244 Aircraft Engineering
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Aug 1, 1951
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