Published online by Cambridge University Press: 28 July 2016
Many types of detonation may be distinguished, and the causes are to be found in the engines as well as in the fuels. Obviously one single cause would not be expected to be found, but, on the contrary, quite a number of properties which will be more or less of influence under different engine conditions. These may differ widely, yet there is more unity in the multitude of causes of detonation than might be expected, and this the authors will endeavour to illustrate. They must apologise for mentioning many well-known, in addition to new, views, but it is necessary to do this for the general exposition of the material.
Two principal types of engines should be considered to-day :–
(1) That in which the fuel is added to the air at the end of compression (in air compressing or Diesel engines), and
(2) That in which the fuel is added to the air before compression (mixture compressing, e.g., petrol engines).
Most methods of increasing the output of petrol engines seem to attract the “ demon of knocking ” ; the reverse is true for Diesel engines, which is hopeful for their future development.
1 Of Bataafsche Petroleum Maatschappij, Delft, The Hague, Holland.
2 See Appendix.
3 See Appendix.
4 See Appendix.
5 See Appendix.
6 See Appendix.
7 See Appendix.
8 See Appendix.
9 Thesis University, Dresden, January, 1933.
10 See Comptes Rendus. Vol. 195, p. 1228.
11 See Appendix.
12 See Comptes Rendus, April 3rd, 1933, p. 1003.
13 See Industrial and Engineering Chemistry, Vol. XXV., No. 8, p. 923; No. 12, p. 1359.
14 See Report of Empire Motor Fuels Committee, I.A.E. Proc, Vol. XVIII., Pt. I., 1924, pp. 329-331.
15 See Brennstoffchemie, May 1st, 1931, p. 172.
16 See Forschungsarbeiten Heft 55, 1907-1908.
17 Organised by the Inst, of Petr. Tech., Feb., 1932.
18 See “Industrial and Engineering Chemistry,” January, May, 1931.
19 See Phys-Zeitschrift Sowjet Union Band 3 Heft 3, 1933. October, 1933.
20 See Zeitschrift fur Physik, Band 82 Heft 3 and 4, 1933. Page 179.
21 See Diesel Engine Users Association, March 31st, 1931.
22 See Proc. Inst, of Petr. Tech., November, 1931.
23 Vide Fraser, Journal, Soc. of Chemical Industry, 1930, Vol. XLIX., No. 8, page 103; and Bone and Fraser, Phil. Trans., Series A, Vol. 228, Part III.
24 See Industrial and Engineering Chemistry, March, 1934.