US 12,065,963 B2
Reducing contrails from an aircraft powerplant
Neil J. Terwilliger, Cheshire, CT (US); Joseph B. Staubach, Colchester, CT (US); and David L. Ma, Avon, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Apr. 24, 2023, as Appl. No. 18/138,481.
Application 18/138,481 is a continuation of application No. 17/670,090, filed on Feb. 11, 2022, granted, now 11,635,022.
Prior Publication US 2023/0279806 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F02C 3/30 (2006.01); F02C 7/12 (2006.01)
CPC F02C 3/30 (2013.01) [F02C 7/12 (2013.01); F05D 2220/323 (2013.01); F05D 2240/35 (2013.01); F05D 2260/207 (2013.01); F05D 2260/212 (2013.01); F05D 2260/213 (2013.01); F05D 2260/605 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method, comprising:
determining likelihood of contrail formation along a region of a flight path for an aircraft, wherein the aircraft includes an aircraft powerplant with a water recovery system, and the water recovery system includes a reservoir;
passing water through the reservoir before the aircraft reaches the region of the flight path when a parameter is greater than a threshold, the parameter indicative of the likelihood of the contrail formation along the region of the flight path.