US 11,668,205 B2
Containment systems for engine
Jeffrey Guymon, Phoenix, AZ (US); Brian Walker, Phoenix, AZ (US); and Manuel Sandoval, Phoenix, AZ (US)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Feb. 8, 2021, as Appl. No. 17/170,230.
Prior Publication US 2022/0251969 A1, Aug. 11, 2022
Int. Cl. F01D 21/04 (2006.01); F01D 25/24 (2006.01); F02C 7/22 (2006.01)
CPC F01D 21/045 (2013.01) [F01D 25/24 (2013.01); F05D 2220/323 (2013.01); F05D 2240/14 (2013.01); F05D 2250/191 (2013.01); F05D 2250/291 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A containment system for an engine, comprising:
an engine case including a case wall having an inner perimeter that defines an interior surface, an outer perimeter that defines an exterior surface for the engine, the interior surface opposite the exterior surface;
a containment ring nested within the inner perimeter of the engine case and integrally formed with the case wall of the engine case along a first interface and a second interface, the first interface and the second interface each have an interface thickness, the interface thickness less than a thickness of the containment ring, the containment ring including a first leg opposite a second leg and the first interface is defined between the first leg and the case wall of the engine case; and
a first plurality of perforations defined at the first interface, each first perforation of the first plurality of perforations separated by a respective one of a first plurality of ligaments, the first plurality of ligaments interconnect the containment ring with the case wall, and the first leg of the containment ring is frangible along the first plurality of perforations to at least partially release the containment ring from the case wall to protect the engine case during a containment event.