Invention Grant
- Patent Title: Integral variable performance propellant grain
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Application No.: US16056293Application Date: 2018-08-06
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Publication No.: US10982625B2Publication Date: 2021-04-20
- Inventor: Paul Parinas , Brian Wilson
- Applicant: GOODRICH CORPORATION
- Applicant Address: US NC Charlotte
- Assignee: GOODRICH CORPORATION
- Current Assignee: GOODRICH CORPORATION
- Current Assignee Address: US NC Charlotte
- Agency: Snell & Wilmer L.L.P.
- Main IPC: F02K9/12
- IPC: F02K9/12 ; F02K9/28 ; C06B31/30 ; C06B29/22 ; F02K9/22

Abstract:
A solid propellant rocket motor may comprise a core-burning propellant grain extending along a longitudinal axis of the solid propellant rocket motor between an exhaust end of the solid propellant rocket motor and a forward end of the solid propellant rocket motor, a first burn inhibitor layer surrounding the core-burning propellant grain, an end-burning propellant grain surrounding the first burn inhibitor layer, a second burn inhibitor layer surrounding the end-burning propellant grain, and an aperture at least partially defined by the first burn inhibitor layer. The end-burning propellant grain is ignited by the core-burning propellant grain via the aperture.
Public/Granted literature
- US20200040849A1 INTEGRAL VARIABLE PERFORMANCE PROPELLANT GRAIN Public/Granted day:2020-02-06
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