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The Wankel engine • While the operatin g principle of the

20th September 1968, Page 114
20th September 1968
Page 114
Page 115
Page 114, 20th September 1968 — The Wankel engine • While the operatin g principle of the
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Wankel rotary-piston engine is reasonably simple, the mathematics involved in the design of the unit are extremely complex. Any technician with a professional or personal interest in the development of the Wankel in particular, or of rotary-piston engines in general, would be well-advised to read The Wankel RC Engine, Design and Performance by R. F. Ansdale, an engineering consultant. The book includes a

on

special contribution by D. J. Lockley, of BSA Ltd,. and is published by Iliffe Books Ltd., 42 Russell Square, London, WC1, at 57s 6d.

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This is an exhaustive mathematical treatise on an the design d development of the Wankel RC engine and mathematical formulae are developed from first principles that provide definitions of relevant epitrochoidal shapes and example, gas calculations to be made of, for gas and apex seal velocities ana the surface

/volume relationship. Many of the diagrams reproduced were plotted from computer printouts and have not been previously published.

In the last chapter, D. J. Lockley describes fuel-injection developments by the CurtissWright company and suggests that advances in fuel injection, applied to sparkignition engines, could transcend in importance current developments of a diesel type of Wankel RC engine, notably with regard to stratified charge and multi-fuel systems, In addition to the Wankel engine a number of types of rotary piston power units are also described in the book.