FIELD: machine building.
SUBSTANCE: invention relates to rocket propulsion units, namely, to solid-propellant rocket engines with charges from mixed solid fuels with inner combustion surface of star-like or similar shape, which are firmly fixed with heat-protective coating applied to the inner surface of the housing through protective-fixing layer. Solid-propellant rocket engine includes housing, heat-protective coating laid along its inner surface, end collars, protective-fixing layer and solid fuel charge. Along the entire length of the charge between the heat-insulating coating and the protective-fixing layer there is an intermediate layer of metal foil, which is evenly attached to the heat-insulating coating and the protective-fixing layer by an adhesive bond.
EFFECT: metal foil layer prevents penetration of gaseous components (ammonia) released into solid fuel charge from heat-insulating coating through protective-fixing layer during storage and operation, which prevents destruction of urethane and ester bonds of polydiene-urethane epoxy rubber, which is the base of charge of solid fuel, provides design traction characteristics during the whole operation of the solid-propellant rocket engine and improves reliability of engine operation.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SOLID-PROPELLANT ROCKET CHARGE | 2004 |
|
RU2263812C1 |
| ROCKET SOLID PROPELLANT CHARGE | 2002 |
|
RU2216641C1 |
| FIXED ROCKET SOLID PROPELLANT CHARGE | 2015 |
|
RU2607196C1 |
| ROCKET SOLID-PROPELLANT CHARGE | 2003 |
|
RU2262612C2 |
| CASE-BONDED CHARGE OF SOLID ROCKET FUEL | 2013 |
|
RU2542632C2 |
| SOLID ROCKET PROPELLANT CHARGE | 2009 |
|
RU2416732C1 |
| BONDER CHARGE | 2000 |
|
RU2190113C2 |
| METHOD OF MAKING MIXED SOLID ROCKET FUEL CHARGE TIGHTLY BONDED TO ROCKET CASING | 2008 |
|
RU2374213C1 |
| SOLID-PROPELLANT ROCKET SECURED CHARGE | 2013 |
|
RU2542163C1 |
| ROCKET SOLID-PROPELLANT CHARGE | 2008 |
|
RU2367812C1 |
