Rolls-Royce Goodrich Engine Control Systems Ltd.
|Rolls-Royce Goodrich Engine Control Systems Ltd. Patent applications|
|Patent application number||Title||Published|
|20130091857||Fuel System - A fuel system comprises a fuel actuation arrangement||04-18-2013|
|20120227842||Fuel System - A fuel system comprises a supply unit operable to deliver a metered supply of fuel to a supply manifold, a staging valve operable to control the supply of fuel from the supply manifold to a pilot outlet and a main outlet, and control means operable to control the operation of the staging valve to control whether fuel is delivered through the pilot and/or main outlet thereof.||09-13-2012|
|20120210716||Pumping Arrangement - An aircraft fuel pumping arrangement comprises a first fuel pump, an electrically powered motor operable to drive the first fuel pump to deliver fuel to an outlet, a second fuel pump, a gas driven turbine operable to drive the second fuel pump to deliver fuel to the outlet, and a controller operable to control the operation of the gas driven turbine to determine the rate at which the second fuel pump is driven.||08-23-2012|
|20120159953||Fuel Staging System - A fuel staging system is described which comprises a staging valve||06-28-2012|
|20120085421||Fuel Metering Control - A method of controlling the operation of a fuel metering unit of the type incorporating a temperature sensor is disclosed, the method comprising the steps of:||04-12-2012|
|20110023982||Fuel System - A fuel metering unit (FMU) comprising a metering valve operable to control the supply of fuel to a delivery chamber of a pressure raising valve (PRV), the PRV including a valve member movable under the influence of the pressure within the delivery chamber between a closed position and an open position in which fuel is able to flow from the delivery chamber to an outlet port, and a push piston movable under the influence of the pressure within a control chamber to urge the valve member towards its open position, wherein the control chamber communicates with a valve control port.||02-03-2011|
|20100288951||Shut-Down Arrangement - A shut-down arrangement comprises a shut-off actuation device operable under the control of a control unit, a switch whereby a first shut-down signal can be supplied to the control unit and whereby a second shut-down signal can be supplied to the shut-off actuation device, and delay means whereby the transmission of the second shut-down signal to the shut-off actuation device is delayed relative to the transmission of the first shut-down signal to the control unit.||11-18-2010|
|20100252758||Staging Valve Arrangement and Valve for Use Therein - A staging valve arrangement is described that comprises an arrangement of electrically driven staging valves that are located, in use, in the high temperature core zone of an engine. Each staging valve may comprise a housing having an inlet, a pilot flow outlet and a mains flow outlet, a valve member movable between a closed position in which the mains flow outlet is closed and an open position in which the mains flow outlet is open, a motor operable to drive the valve member for movement, and a cooling arrangement.||10-07-2010|
Patent applications by Rolls-Royce Goodrich Engine Control Systems Ltd.