公开(公告)号：US20200232409A1

公开(公告)日：2020-07-23

申请号：US16352030

申请日：2019-03-13

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Etienne PLAMONDON ,  Sebastien BERGERON ,  Benjamin RENAUD ,  Jean-Gabriel GAUVREAU

IPC: F02D41/38 ,  F02D41/30 ,  F02D7/00 ,  F02M99/00

Abstract: There is disclosed a method of operating an engine assembly including a combustion engine and a common-rail injector. The method includes: injecting fuel into a combustion chamber of the combustion engine via the common-rail injector thereby generating a backflow of fuel; and powering an actuator using at least a portion of the backflow of fuel. An engine assembly including the combustion engine is disclosed; the engine assembly having a fuel circuit fluidly connecting a fuel source, the common-rail injector, and the second injector outlet together. The fuel circuit has an actuator sub-circuit operatively connected to an outlet of the common-rail injector and an actuator fluidly connected to the actuator sub-circuit.

公开(公告)号：US20180193770A1

公开(公告)日：2018-07-12

申请号：US15400560

申请日：2017-01-06

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Marcin CZAJKOWSKI ,  Sebastien BERGERON ,  Filip Adam PULTER ,  Johnny VINSKI

IPC: B01D19/00 ,  F01D25/18

Abstract: The described air-oil separation apparatus for an oil system of a gas turbine engine includes an oil tank having an oil impingement surface disposed on a tank bottom proximate an oil tank outlet and a centrifugal air-oil separator mounted within the oil tank. The centrifugal air-oil separator has an oil outlet that feeds an impingement nozzle having an outlet oriented, in operation, to eject an oil jet from the centrifugal air-oil separator to impinge the oil impingement surface at an intersection point spaced apart from the oil tank outlet.