公开(公告)号：US20240230468A1

公开(公告)日：2024-07-11

申请号：US18137839

申请日：2023-04-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Erin E. Berry ,  Donna Laboda

IPC: G01M15/06 ,  F02D41/00

CPC classification number: G01M15/06 ,  F02D41/009

Abstract: A piston assembly includes a housing, a piston positioned within the valve housing, and an inductive proximity probe sensor positioned on the housing configured to detect a position of the piston with the housing. The piston is configured to at least one of rotate or translate axially relative to the housing. The piston includes a variable surface. A fuel control system includes the piston assembly, a servo valve in fluid communication with the piston assembly, and an engine controller. The engine controller is operatively connected to the inductive proximity probe sensor.

公开(公告)号：US20230358174A1

公开(公告)日：2023-11-09

申请号：US17738141

申请日：2022-05-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Adrian L. Stoicescu ,  Donna Laboda ,  Edward W. Goy ,  Zachary Allen Ray LeDuc ,  Todd Haugsjaahabink ,  John M. Kassel

IPC: F02C7/236 ,  F02C9/30 ,  B64D37/00

CPC classification number: F02C7/236 ,  F02C9/30 ,  B64D37/00 ,  F05D2220/323

Abstract: A fuel pumping system of an aircraft, having a first boost pump; a main pump; a main pump feed conduit fluidly coupled to the main pump and configured to receive fuel after it has passed through the first boost pump; a main pump discharge conduit fluidly coupled to the main pump; an ejector fluidly coupled to the main pump feed conduit, between the first boost pump and the main pump; a bypass conduit fluidly coupled to the main pump discharge conduit and the ejector such that the bypass conduit is configured to provide fluid to the ejector drawn from the output of the first boost pump into the main pump; and a backpressure regulating valve fluidly coupled to the bypass conduit, and configured to transition to an open state when pressure in the main pump discharge conduit is above a threshold.