-
公开(公告)号:US11884408B2
公开(公告)日:2024-01-30
申请号:US17539479
申请日:2021-12-01
Applicant: GOODRICH CORPORATION
Inventor: Brian Wilson , Kaylyn Beseler
Abstract: A solid propellant propulsion motor may comprise: a forward propellant grain extending along a longitudinal axis of a motor case between a forward end of the motor case and a first burn inhibitor layer in the motor case; the first burn inhibitor layer disposed axially adjacent to the forward propellant grain; an aft propellant grain disposed axially adjacent to the first burn inhibitor layer; a second burn inhibitor layer disposed axially adjacent to an aft end of the aft propellant grain; and an ablative material layer disposed on a radially inner surface of the aft propellant grain.