초록 ▼

A hot gas control system includes a pressure vessel defining a chamber in which is disposed a body of solid propellant material that has a leading portion and a trailing portion. A first layer of the body of solid propellant material extends between the leading portion and an intermediate region of

A hot gas control system includes a pressure vessel defining a chamber in which is disposed a body of solid propellant material that has a leading portion and a trailing portion. A first layer of the body of solid propellant material extends between the leading portion and an intermediate region of the body of solid propellant material, and a second layer extends between the intermediate region and the trailing portion of the body of solid propellant material. The first layer is composed of a first propellant composition that produces a relatively clean gas, and the second layer is composed of a second propellant composition that produces a relatively less clean gas. The body of solid propellant is arranged to burn within the chamber from the leading portion toward the trailing portion and thereby produce a quantity of gas that passes through an outlet port to a ducting path, the first layer having a thickness sufficient to produce enough relatively clean gas to preheat the ducting structure and thereby inhibit contaminant accumulation due to the withdrawal of heat from the less clean gas.

대표청구항 ▼

A gas generator for a hot-gas control system, comprising: (a) a pressure vessel defining a chamber and an output port; and (b) a body of solid propellant material disposed within the chamber, the body of solid propellant material having a leading portion, an intermediate portion, and a trailing port

A gas generator for a hot-gas control system, comprising: (a) a pressure vessel defining a chamber and an output port; and (b) a body of solid propellant material disposed within the chamber, the body of solid propellant material having a leading portion, an intermediate portion, and a trailing portion; (c) said body of solid propellant material including a first layer that extends between said leading portion and said intermediate region of the body of solid propellant material, said first layer being composed of a first propellant composition that produces a relatively clean gas; and (d) said body of solid propellant material further including a second layer that extends between said intermediate region and said trailing portion of the body of solid propellant material, said second layer being composed of a second propellant composition that produces a relatively less clean gas.