US 12,258,923 B2
Cowl assembly for a propulsor
Thomas Malkus, Albany, NY (US); Trevor Howard Wood, Clifton Park, NY (US); and Kishore Ramakrishnan, Rexford, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Mar. 13, 2023, as Appl. No. 18/182,613.
Prior Publication US 2024/0309828 A1, Sep. 19, 2024
Int. Cl. F02K 1/09 (2006.01); F02K 1/06 (2006.01)
CPC F02K 1/06 (2013.01) 11 Claims
OG exemplary drawing
 
1. A propulsor comprising:
a power source;
a fan section coupled to the power source and configured to provide thrust opposite a downstream direction; and
a cowl assembly at least partially enclosing the power source and the fan section, the cowl assembly comprising:
a forward cowl component;
a first aft cowl component disposed in the downstream direction relative to the forward cowl component and movable to vary a first aft cowl displacement from the forward cowl component in the downstream direction;
a second aft cowl component disposed in the downstream direction relative to the first aft cowl component and movable to vary a second aft cowl intermediate displacement from the first aft cowl component;
a third aft cowl component disposed in the downstream direction relative to the forward cowl component, the first aft cowl component, and the second aft cowl component;
a first aerodynamic slot between the forward cowl component and the first aft cowl component, wherein the first aerodynamic slot is open in at least one operating configuration; and
a second aerodynamic slot between the first aft cowl component and the second aft cowl component, wherein the second aerodynamic slot is open in at least one operating configuration, wherein in a closed operating configuration, neither the first aerodynamic slot nor the second aerodynamic slot is open, and wherein in a first open operating configuration the first aerodynamic slot is closed and the second aerodynamic slot is open.