FIELD: oil industry.
SUBSTANCE: device has receiving chamber with solid-fuel charges and igniter, combustible plug and air chamber with atmospheric pressure. Receiving chamber is perforated along whole length by apertures for outlet of combustion products. Charge adjacent to upper end of receiving chamber burns from its end. It is made of heat-resistant low-gas slow-burning compound with high temperature of combustion products and high caloricity, with low dependence of burning speed from pressure and it is protected from burning at side surface by compound preventing burning thereon, but burning together with charge. Charge, adjacent to plug, is of channel construction, quick-combustible, and it is made of heat-resistant gas-generating compound. Igniter is mounted in upper end of charge, adjacent to upper end of receiving chamber. Air chamber with atmospheric pressure is placed below receiving chamber.
EFFECT: higher efficiency.
2 cl, 1 dwg
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