US 11,815,049 B2
Swirl preburner system and method
Jeffery Tyler Thornburg, Madison, AL (US)
Assigned to Stratolaunch, LLC, Mojave, CA (US)
Filed by Stratolaunch, LLC, Mojave, CA (US)
Filed on Jun. 29, 2022, as Appl. No. 17/853,025.
Application 17/853,025 is a continuation of application No. 16/192,693, filed on Nov. 15, 2018, granted, now 11,378,040.
Prior Publication US 2022/0333554 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F02K 9/52 (2006.01); F02K 3/075 (2006.01); F02K 9/48 (2006.01); F02K 9/64 (2006.01); F23R 3/20 (2006.01)
CPC F02K 9/52 (2013.01) [F02K 3/075 (2013.01); F02K 9/48 (2013.01); F02K 9/64 (2013.01); F23R 3/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A swirl preburner comprising:
a first core defining a first swirl chamber having a first swirl chamber first end and a first swirl chamber second end, the first swirl chamber comprising a first swirl chamber taper portion that transitions a diameter of the first swirl chamber from a first diameter at the first swirl chamber first end to a second smaller diameter at the first swirl chamber second end that is smaller than the first diameter;
a second core defining a second swirl chamber having a second swirl chamber first end and a second swirl chamber second end, the second swirl chamber comprising a second swirl chamber taper portion that transitions a diameter of the second swirl chamber from a third diameter at the second swirl chamber first end to a fourth smaller diameter at the second swirl chamber second end that is smaller than the third diameter, the first diameter being smaller than the third diameter and larger than the fourth smaller diameter; and
a mixing element defining a mixing chamber, the mixing chamber surrounding a portion of the first and second swirl chamber at least including the first swirl chamber second end and the second swirl chamber second end.