| 摘要 |
<p>The thermal engine combustion chamber contains the outer case (1), a flame tube (2) with perforation openings (3), a circular ultrasonic gas jet autogenerator (4) f fuel spraying conjugated to a flame tube through acoustic funnel (5). The combustion chamber is equipped with flow acoustic reflectors (6, 7) and two blade apparatuses (8, 9), the first (8) of these blade apparatuses is installed at the entrance to the outer case (1) and the second (9) is installed at the exit from the said case. The flow acoustic reflectors are installed along the working body course after the first blade apparatus (8) and before the second one (9) and designed in the form of at least two radial concentric lattices. The number of radial threads in the lattices of acoustic reflectors, the radial gap between the outer case and the flame tube, the radial cell size, the axial size of blade lattices, the distance between them and lattices of acoustic reflectors and the axial size of the latter are defined as depending on the wavelength of the principal mode of the ultrasonic generator. The diameter of the perforation openings in the flame tube, the number of blades in the blade apparatuses, the radial size of cells of flow acoustic reflectors are selected from the relationships specified in this invention. The invention allows increase efficiency of fuel spraying and combustion.</p> |
