The invention relates to the field of
rocket engines, in particular to a novel
hydrogen peroxide multistage
catalytic decomposition type
gas generator, which comprises a first-stage
hydrogen peroxide inlet, wherein a first-stage
hydrogen peroxide silver mesh catalytic
bed, a first-stage lattice structure, a second-stage
hydrogen peroxide gas-
liquid injection disc, a second-stage downstream mixing cavity, a second-stage lattice structure, a third-stage
hydrogen peroxide gas-
liquid injection disc, a third-stage downstream mixing cavity, a third-stage lattice structure and a generator outlet are sequentially arranged on the downstream of the first-stage
hydrogen peroxide inlet, a second-stage hydrogen peroxide inlet is formed in the second-stage hydrogen peroxide gas-
liquid injection disc, and a third-stage hydrogen peroxide inlet is formed in the third-stage hydrogen peroxide gas-liquid injection disc. According to the
gas generator, high-temperature and high-pressure gas with rated flow is generated through self-
decomposition reaction of multistage hydrogen peroxide,
mechanical equipment such as a
turbine and the like are pushed to do work, large-range adjustment of the flow of the
gas generator is achieved through three-stage gas inlet, it is guaranteed that the
working pressure is stable, and the
power capability of the generator is improved.