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US 10,830,181 B2Granted
Thermally initiated variable venting system for rocket motor
AssigneeGoodrich Corporation
InventorLuis G. Interiano
Life of this patent
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Abstract
A thermally initiated variable venting system may comprise a first linear shape charge (LSC) coupled to a first sensor and a second LSC coupled to a second sensor. An upper apex of the second LSC may be disposed within a lower apex of the first LSC. The output of the system may vary depending on whether the event is fast cook-off (FCO) or slow cook-off (SCO).
Claims20
A thermally initiated variable venting system for a rocket motor case, comprising:
- a first linear shape charge (LSC) coupled to a first sensor;
- and
- a second LSC coupled to a second sensor;
- wherein the first LSC radially overlaps the second LSC;
- the first sensor is configured to activate to ignite the first LSC in response to at least a portion of the first sensor reaching a first temperature;
- the second sensor is configured to activate to ignite the second LSC in response to at least a portion of the second sensor reaching a second temperature;
- the thermally initiated variable venting system configured to project a molten jet towards the rocket motor case in response to at least one of the first LSC being ignited by the first sensor and the second LSC being ignited by the second sensor.
4 more elements
A rocket motor, comprising:
- a rocket motor case;
- a cover coupled to the rocket motor case and extending longitudinally along an outer surface of the rocket motor case;
- a channel disposed in the cover, an opening of the channel facing the rocket motor case;
- a first linear shape charge (LSC) coupled to a first sensor, at least a portion of the first LSC disposed in the channel;
- and
- a second LSC coupled to a second sensor, at least a portion of the second LSC disposed in the channel;
- wherein the second LSC is disposed between the first LSC and the rocket motor case;
- the first sensor is configured to activate to ignite the first LSC in response to at least a portion of the first sensor reaching a first temperature;
- the second sensor is configured to activate to ignite the second LSC in response to at least a portion of the second sensor reaching a second temperature;
- wherein a molten jet is projected from the opening in the channel in response to at least one of the first LSC being ignited by the first sensor and the second LSC being ignited by the second sensor.
7 more elements
A method for manufacturing a thermally initiated variable venting system, comprising:
- disposing a first linear shape charge (LSC) into a channel of a cover;
- disposing a second LSC into the channel;
- coupling a second sensor to the second LSC configured to activate to ignite the second LSC in response to at least a portion of the second sensor reaching a second temperature;
- and
- coupling the cover to a rocket motor case, wherein an opening in the channel faces the rocket motor case, the second LSC disposed between the first LSC and the rocket motor case, such that a molten jet is projected from the opening towards the rocket motor case in response to at least one of the first LSC being ignited by the first sensor and the second LSC being ignited by the second sensor.
2 more elements
Dependencies are inferred from the claim text.