Patent ID: 11867139
Assignee: BLUE ORIGIN, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A modular damper plug configured to be received in an acoustic liner of a rocket engine to form a multi-volume acoustic resonator, the modular damper plug comprising:
a main body comprising a top surface spaced from a bottom surface by a first height, a left surface spaced from a right surface by a width, and an exterior surface spaced from an interior surface by a length; and
a chamber within the main body extending along a part of the first height, a part of the width, and a part of the length, the chamber communicating with the top surface through an opening, the chamber communicating with the interior surface through one or more ducts,
the main body sized and shaped to be received in any one of a plurality of cavities in the acoustic liner, the chamber comprising an upstream volume of the acoustic resonator and the one or more ducts communicating with a downstream volume of the acoustic resonator when the modular damper plug is received in any one of the plurality of cavities.