Engineering Physics Annotation << Back Rayleigh problem of pressure developing in the liquid, and the issues of nuclear fusion Kal’сhenko A.A. Kuz’min R.N. The evolution of self-focusing shock wave of pressure in the liquid surrounding the collapsing gas bubble was considered on the basis of the Rayleigh problem. It has been shown that the gradients of pressure values of this wave in the surroundings of the point of collapse contribute not only to a launch of the nuclear fusion reaction of hydrogen isotopes that are present in the liquid composition, but also to the fusion reaction of Bethe and fon Vaytszeykkera. It should be mentioned here that the article includes an attempt to explain the principle of launching mechanisms in cold fusion of experiments of Fleischmann– Pons and heat generator of Rossi. Moreover, the article presents the forecast at creating engines working on the proposed methods of producing energy. Key words: Rayleigh problem, self-focusing shock wave, collapsing gas bubble, cold fusion. Contacts: E-mail: anatolij.kalchenko@mail.ru Pp. 14-21.